/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    --primary-color: #1a365d;
    --secondary-color: #4299e1;
    --accent-color: #f56565;
    --purple: #805ad5;
    --teal: #38b2ac;
    --orange: #ed8936;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-dark: #2d3748;
    --white: #ffffff;
    --success: #48bb78;
    --warning: #ecc94b;
    
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    --transition: all 0.3s ease;
    --box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    --box-shadow-hover: 0 10px 30px rgba(0,0,0,0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-secondary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-dark {
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.lead {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    color: var(--white);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary i {
    font-size: 1.2rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.btn-secondary-gradient {
    background: linear-gradient(135deg, #f56565, #ed8936);
    border-color: transparent;
}

.btn-secondary-gradient:hover {
    background: linear-gradient(135deg, #e53e3e, #dd6b20);
    color: var(--white);
    transform: translateY(-3px);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(44, 62, 80, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(44, 62, 80, 1);
    box-shadow: var(--box-shadow);
}

.navbar-minimal {
    background: rgba(26, 54, 93, 1);
}

.logo-back {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-back i {
    font-size: 1.2rem;
    transition: var(--transition);
}

.logo-back:hover i {
    transform: translateX(-5px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    font-family: var(--font-primary);
    letter-spacing: -0.5px;
    transition: var(--transition);
}

.logo-text:hover {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-left: 20px;
}

/* Language Selector */
.lang-selector {
    display: flex;
    gap: 5px;
}

.lang-btn {
    padding: 6px 12px;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    font-weight: 600;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-btn .flag {
    font-size: 1rem;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.lang-btn.active {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--white);
}

.nav-assessment {
    color: #f59e0b !important;
    font-weight: 700;
    animation: pulse 2s infinite;
}

.nav-assessment i {
    color: #f59e0b;
    margin-right: 5px;
    animation: starTwinkle 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes starTwinkle {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

.btn-download {
    padding: 8px 20px;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-download:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--teal);
    color: var(--teal);
    transform: translateY(-2px);
}

.btn-book-call {
    padding: 10px 24px;
    background: linear-gradient(135deg, #f56565, #ed8936);
    color: var(--white);
    border: none;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(245, 101, 101, 0.3);
}

.btn-book-call:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 101, 101, 0.4);
}

/* ===================================
   Assessment Section
   =================================== */
.assessment {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    position: relative;
    overflow: hidden;
}

.assessment::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(237, 137, 54, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.star-badge {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    animation: starRotate 3s linear infinite;
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.3);
}

.star-badge i {
    font-size: 2rem;
    color: var(--white);
}

@keyframes starRotate {
    0%, 100% {
        transform: rotate(0deg) scale(1);
    }
    25% {
        transform: rotate(10deg) scale(1.1);
    }
    50% {
        transform: rotate(0deg) scale(1);
    }
    75% {
        transform: rotate(-10deg) scale(1.1);
    }
}

.assessment-content {
    max-width: 1000px;
    margin: 0 auto;
}

.assessment-intro {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.intro-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.intro-card:nth-child(1) {
    border-top-color: #4299e1;
}

.intro-card:nth-child(2) {
    border-top-color: #48bb78;
}

.intro-card:nth-child(3) {
    border-top-color: #f59e0b;
}

.intro-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.intro-card i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.intro-card:nth-child(1) i {
    color: #4299e1;
}

.intro-card:nth-child(2) i {
    color: #48bb78;
}

.intro-card:nth-child(3) i {
    color: #f59e0b;
}

.intro-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.intro-card p {
    color: var(--text-light);
    margin: 0;
}

.assessment-iframe-wrapper {
    background: var(--white);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.assessment-iframe {
    width: 100%;
    height: 800px;
    border: none;
    border-radius: 10px;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 50%, #4299e1 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') bottom center no-repeat;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 60px;
    color: var(--white);
}

.hero-image {
    flex-shrink: 0;
}

.profile-img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 8px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    object-fit: cover;
    animation: fadeInLeft 1s ease;
}

.hero-text {
    text-align: left;
    max-width: 700px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 15px;
    animation: fadeInUp 1s ease;
    background: linear-gradient(135deg, #ffffff 0%, #4299e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline-wrapper {
    margin-bottom: 25px;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.tagline {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 0;
    font-family: var(--font-primary);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.tagline-orange {
    color: #ed8936;
    font-weight: 800;
}

.tagline-white {
    color: var(--white);
    font-weight: 600;
}

.tagline-animated {
    color: #4299e1;
    font-weight: 800;
    display: inline-block;
    min-width: 180px;
    border-right: 3px solid #4299e1;
    animation: blink-cursor 0.8s step-end infinite;
}

@keyframes blink-cursor {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: #4299e1;
    }
}

.hero-description {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 0 40px 0;
    line-height: 1.8;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.4s backwards;
    font-weight: 400;
}

.assessment-teaser {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 25px;
    margin: 30px 0;
    animation: fadeInUp 1s ease 0.5s backwards;
}

.teaser-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    animation: pulse-glow 2s infinite;
}

.teaser-badge i {
    font-size: 1rem;
    animation: rotate-star 3s linear infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    }
    50% {
        box-shadow: 0 6px 25px rgba(245, 158, 11, 0.6);
    }
}

@keyframes rotate-star {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.assessment-teaser h3 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.assessment-teaser p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

.btn-pulse {
    animation: pulse-button 2s infinite;
    position: relative;
}

.btn-pulse::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #4299e1, #3182ce);
    border-radius: 50px;
    opacity: 0;
    z-index: -1;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-button {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

@keyframes pulse-ring {
    0% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
    100% {
        opacity: 0;
        transform: scale(1.2);
    }
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: flex-start;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.6s backwards;
}

.hero-social {
    display: flex;
    gap: 20px;
    justify-content: flex-start;
    animation: fadeInUp 1s ease 0.8s backwards;
}

.hero-social a {
    width: 50px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.hero-social a:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-5px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--white);
    font-size: 2rem;
    opacity: 0.7;
}

/* ===================================
   About Section
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-highlights {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.highlight-item {
    display: flex;
    gap: 20px;
    align-items: start;
    padding: 20px;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 10px;
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.highlight-item:hover {
    transform: translateX(5px);
    box-shadow: var(--box-shadow);
    background: linear-gradient(135deg, #edf2f7 0%, #e2e8f0 100%);
}

.highlight-item:nth-child(1) {
    border-left-color: #f59e0b;
}

.highlight-item:nth-child(2) {
    border-left-color: #8b5cf6;
}

.highlight-item i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.highlight-item h4 {
    margin-bottom: 5px;
    color: var(--primary-color);
}

.highlight-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.stat-card {
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    color: var(--white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.stat-card:nth-child(1) {
    background: linear-gradient(135deg, #4299e1, #3182ce);
}

.stat-card:nth-child(2) {
    background: linear-gradient(135deg, #805ad5, #6b46c1);
}

.stat-card:nth-child(3) {
    background: linear-gradient(135deg, #38b2ac, #319795);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-primary);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===================================
   Experience Section (Employer Blocks)
   =================================== */
.experience-blocks {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.experience-block {
    background: var(--white);
    padding: 35px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-left: 5px solid var(--secondary-color);
}

.experience-block:hover {
    transform: translateX(5px);
    box-shadow: var(--box-shadow-hover);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg-light);
}

.employer-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.employer-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 8px;
    background: var(--white);
    padding: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.employer-name {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0;
    font-weight: 700;
}

.location {
    display: block;
    color: var(--text-light);
    font-size: 0.95rem;
    margin-top: 5px;
}

.employment-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    background: var(--bg-light);
    color: var(--text-dark);
}

.employment-badge.current {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(34, 197, 94, 0);
    }
}

.role-item {
    margin-bottom: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 12px;
    position: relative;
}

.role-item:last-child {
    margin-bottom: 0;
}

.role-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    border-radius: 4px 0 0 4px;
}

.role-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin: 0 0 8px 0;
    font-weight: 700;
}

.role-period {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.role-achievements {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.role-achievements li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    color: var(--text-dark);
    line-height: 1.6;
}

.role-achievements li::before {
    content: '▸';
    position: absolute;
    left: 8px;
    color: var(--secondary-color);
    font-size: 1.2rem;
    font-weight: bold;
}

.role-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.role-tags span {
    background: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-dark);
    font-weight: 500;
    border: 1px solid var(--bg-light);
    transition: var(--transition);
}

.role-tags span:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* ===================================
   Tools & Methodology Section
   =================================== */
.tools {
    background: var(--white);
}

.tools-content {
    max-width: 1200px;
    margin: 0 auto;
}

.tools-image {
    margin-bottom: 50px;
    text-align: center;
}

.tools-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--box-shadow-hover);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.tool-category {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.tool-category:nth-child(1) {
    border-top-color: #4299e1;
}

.tool-category:nth-child(2) {
    border-top-color: #805ad5;
}

.tool-category:nth-child(3) {
    border-top-color: #48bb78;
}

.tool-category:nth-child(4) {
    border-top-color: #ed8936;
}

.tool-category:nth-child(5) {
    border-top-color: #38b2ac;
}

.tool-category:nth-child(6) {
    border-top-color: #f56565;
}

.tool-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.tool-category i {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.tool-category:nth-child(1) i {
    color: #4299e1;
}

.tool-category:nth-child(2) i {
    color: #805ad5;
}

.tool-category:nth-child(3) i {
    color: #48bb78;
}

.tool-category:nth-child(4) i {
    color: #ed8936;
}

.tool-category:nth-child(5) i {
    color: #38b2ac;
}

.tool-category:nth-child(6) i {
    color: #f56565;
}

.tool-category h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.tool-category p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.9rem;
}

.mindmap-download {
    text-align: center;
}

.btn-mindmap {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 40px;
    background: linear-gradient(135deg, #805ad5, #6b46c1);
    color: var(--white);
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(128, 90, 213, 0.3);
}

.btn-mindmap:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(128, 90, 213, 0.4);
}

/* ===================================
   Skills Section
   =================================== */
.skills-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.skills-category {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.skills-category h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-category h3 i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    width: 100%;
}

.skill-name {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.skill-bar {
    height: 10px;
    background: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    border-radius: 10px;
    transition: width 1s ease;
}

.certifications {
    margin-top: 40px;
}

.cert-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.cert-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.cert-card:nth-child(1) {
    border-top: 4px solid #4299e1;
}

.cert-card:nth-child(2) {
    border-top: 4px solid #48bb78;
}

.cert-card:nth-child(3) {
    border-top: 4px solid #ed8936;
}

.cert-card i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.cert-card:nth-child(1) i {
    color: #4299e1;
}

.cert-card:nth-child(2) i {
    color: #48bb78;
}

.cert-card:nth-child(3) i {
    color: #ed8936;
}

.cert-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cert-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

/* ===================================
   Projects Section
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.project-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.project-card:nth-child(1) .project-icon {
    background: linear-gradient(135deg, #4299e1, #3182ce);
}

.project-card:nth-child(2) .project-icon {
    background: linear-gradient(135deg, #ed8936, #dd6b20);
}

.project-card:nth-child(3) .project-icon {
    background: linear-gradient(135deg, #48bb78, #38a169);
}

.project-card:nth-child(4) .project-icon {
    background: linear-gradient(135deg, #805ad5, #6b46c1);
}

.project-card:nth-child(5) .project-icon {
    background: linear-gradient(135deg, #38b2ac, #319795);
}

.project-card:nth-child(6) .project-icon {
    background: linear-gradient(135deg, #f56565, #e53e3e);
}

.project-icon i {
    font-size: 2rem;
    color: var(--white);
}

.project-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-metrics {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.project-metrics span {
    background: var(--bg-light);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 5px;
}

.project-metrics i {
    color: var(--secondary-color);
}

.project-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-tags span {
    background: var(--secondary-color);
    color: var(--white);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-card {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.contact-card h3 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.contact-card p {
    color: var(--text-light);
    margin: 0;
}

.contact-card a {
    color: var(--secondary-color);
}

.contact-card a:hover {
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group textarea {
    resize: vertical;
}

.contact-form button {
    width: 100%;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links li {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    cursor: pointer;
}

.footer-links li:hover,
.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-cultural h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-cultural p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-cultural i {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===================================
   Books Section
   =================================== */
.books {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.books-showcase {
    margin-bottom: 60px;
    text-align: center;
    padding: 40px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--box-shadow-hover);
}

.books-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
}

.books-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.book-category {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.book-category:nth-child(1) {
    border-top-color: #f59e0b;
}

.book-category:nth-child(2) {
    border-top-color: #4299e1;
}

.book-category:nth-child(3) {
    border-top-color: #805ad5;
}

.book-category:nth-child(4) {
    border-top-color: #48bb78;
}

.book-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.book-category i {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.book-category:nth-child(1) i {
    color: #f59e0b;
}

.book-category:nth-child(2) i {
    color: #4299e1;
}

.book-category:nth-child(3) i {
    color: #805ad5;
}

.book-category:nth-child(4) i {
    color: #48bb78;
}

.book-category h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.book-category ul {
    list-style: none;
    padding: 0;
}

.book-category li {
    color: var(--text-light);
    padding: 8px 0;
    border-bottom: 1px solid var(--bg-light);
    font-size: 0.9rem;
}

.book-category li:last-child {
    border-bottom: none;
}

.book-category li:before {
    content: "📚 ";
    margin-right: 8px;
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background: var(--white);
}

.testimonials-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.testimonial-tab {
    padding: 12px 30px;
    background: transparent;
    border: 2px solid var(--bg-light);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    color: var(--text-dark);
}

.testimonial-tab:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.testimonial-tab.active {
    background: linear-gradient(135deg, #f56565, #ed8936);
    border-color: transparent;
    color: var(--white);
}

.testimonials-content {
    position: relative;
    min-height: 400px;
}

.testimonial-card {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--box-shadow-hover);
    display: none;
    animation: fadeIn 0.5s ease;
}

.testimonial-card.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.testimonial-quote {
    margin-bottom: 30px;
    position: relative;
}

.testimonial-quote i {
    font-size: 3rem;
    color: var(--secondary-color);
    opacity: 0.2;
    position: absolute;
    top: -10px;
    left: -10px;
}

.testimonial-quote p {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-dark);
    line-height: 1.8;
    padding-left: 40px;
    font-weight: 500;
}

.testimonial-author {
    display: flex;
    gap: 20px;
    align-items: center;
    padding-top: 30px;
    border-top: 2px solid rgba(0, 0, 0, 0.1);
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--white);
    box-shadow: var(--box-shadow);
}

.author-avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    box-shadow: var(--box-shadow);
}

.author-info h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.author-info p {
    color: var(--text-light);
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.author-company {
    font-weight: 600;
    color: var(--text-dark);
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #0077b5;
    font-weight: 600;
    margin-top: 10px;
    transition: var(--transition);
}

.linkedin-link:hover {
    color: #005885;
    transform: translateX(5px);
}

.testimonials-cta {
    text-align: center;
    margin-top: 50px;
}

.btn-testimonials {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 40px;
    font-size: 1.1rem;
}

.btn-testimonials i {
    transition: var(--transition);
}

.btn-testimonials:hover i {
    transform: translateX(5px);
}

/* ===================================
   Chatbot Widget
   =================================== */
.chatbot-widget {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 1000;
}

.chatbot-toggle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: transparent;
    border: none;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    overflow: hidden;
}

.chatbot-toggle img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.chatbot-toggle i {
    display: none;
}

.chatbot-container {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 400px;
    height: 600px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideInUp 0.3s ease;
}

.chatbot-container.active {
    display: flex;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chatbot-header {
    background: linear-gradient(135deg, #4299e1, #3182ce);
    color: var(--white);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.chatbot-close {
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 1.3rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 5px;
}

.chatbot-close:hover {
    transform: rotate(90deg);
}

.chatbot-iframe {
    flex: 1;
    border: none;
}

/* ===================================
   Chatbot CTA Section
   =================================== */
.chatbot-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.chatbot-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    z-index: 0;
}

.chatbot-cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    z-index: 0;
}

.chatbot-cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.chatbot-cta-text {
    color: var(--white);
}

.chatbot-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.chatbot-badge i {
    font-size: 1.2rem;
}

.chatbot-cta-text h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--white);
}

.chatbot-cta-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.95;
}

.chatbot-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
}

.feature-item i {
    color: #48bb78;
    font-size: 1.2rem;
}

.btn-chat-now {
    padding: 16px 40px;
    background: var(--white);
    color: #667eea;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-chat-now:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    background: #f7fafc;
}

.btn-chat-now i {
    font-size: 1.3rem;
}

/* Chat Preview */
.chat-preview {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.chat-preview-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
    padding: 20px;
    color: var(--white);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-avatar {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.chat-header-info h4 {
    margin: 0;
    font-size: 1.1rem;
}

.status-online {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    opacity: 0.9;
}

.status-online i {
    font-size: 0.6rem;
    color: #48bb78;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.chat-preview-messages {
    padding: 30px 20px;
    background: #f7fafc;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-message {
    display: flex;
}

.chat-message.bot {
    justify-content: flex-start;
}

.chat-message.user {
    justify-content: flex-end;
}

.message-bubble {
    max-width: 80%;
    padding: 12px 18px;
    border-radius: 18px;
    animation: fadeInUp 0.5s ease;
}

.chat-message.bot .message-bubble {
    background: var(--white);
    color: var(--text-dark);
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.chat-message.user .message-bubble {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: var(--white);
    border-bottom-right-radius: 4px;
}

.message-bubble p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 5px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: #cbd5e0;
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Clients Logo Scroll Section
   =================================== */
.clients-scroll {
    padding: 60px 0;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    overflow: hidden;
}

.clients-scroll .section-header {
    margin-bottom: 40px;
}

.clients-scroll .section-title {
    color: var(--white);
    text-align: center;
}

.logos-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 20px 0;
}

.logos-wrapper::before,
.logos-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logos-wrapper::before {
    left: 0;
    background: linear-gradient(to right, #1a202c 0%, transparent 100%);
}

.logos-wrapper::after {
    right: 0;
    background: linear-gradient(to left, #1a202c 0%, transparent 100%);
}

.logos-scroll {
    display: flex;
    gap: 60px;
    animation: scroll 25s linear infinite;
}

.logos-scroll:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.logo-item {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    height: 100px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.logo-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.logo-item img {
    max-width: 160px;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.8) contrast(0.8);
    transition: all 0.3s ease;
}

.logo-item:hover img {
    filter: grayscale(0%) brightness(1) contrast(1);
    transform: scale(1.05);
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #a0aec0;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.logo-item:hover .logo-text {
    color: var(--white);
    filter: grayscale(0%);
    text-shadow: 0 0 20px rgba(66, 153, 225, 0.5);
}



/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .skills-content {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        padding: 30px 0;
        gap: 20px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .nav-actions {
        margin-left: 0;
        margin-top: 20px;
        justify-content: center;
        flex-wrap: wrap;
        width: 100%;
        padding: 0 20px;
        gap: 10px;
    }
    
    .lang-selector {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .btn-download,
    .btn-book-call {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .books-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonial-quote p {
        font-size: 1.2rem;
    }
    
    .testimonial-author {
        flex-direction: column;
        text-align: center;
    }
    
    .author-avatar,
    .author-avatar-placeholder {
        margin: 0 auto;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .profile-img {
        width: 200px;
        height: 200px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.5rem;
    }
    
    .tagline-animated {
        min-width: 140px;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        justify-content: center;
        align-items: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Experience Blocks Responsive */
    .experience-block {
        padding: 25px;
    }
    
    .experience-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .employer-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .employer-logo {
        width: 40px;
        height: 40px;
    }
    
    .employer-name {
        font-size: 1.5rem;
    }
    
    .employment-badge {
        align-self: flex-start;
    }
    
    .role-item {
        padding: 20px;
    }
    
    .role-title {
        font-size: 1.1rem;
    }
    
    .role-achievements li {
        font-size: 0.95rem;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .tagline-animated {
        min-width: 100px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .books-categories {
        grid-template-columns: 1fr;
    }
    
    /* Assessment Teaser Mobile */
    .assessment-teaser {
        padding: 20px;
        margin: 20px 0;
    }
    
    .assessment-teaser h3 {
        font-size: 1.2rem;
    }
    
    .assessment-teaser p {
        font-size: 0.9rem;
    }
    
    /* Chatbot CTA Mobile */
    .chatbot-cta {
        padding: 60px 0;
    }
    
    .chatbot-cta-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .chatbot-cta-text h2 {
        font-size: 2rem;
    }
    
    .chatbot-cta-text p {
        font-size: 1rem;
    }
    
    .chat-preview {
        order: -1;
    }
    
    .chat-preview-messages {
        min-height: 250px;
        padding: 20px 15px;
    }
    
    /* Logo Scroll Mobile */
    .logos-scroll {
        gap: 40px;
        animation: scroll 20s linear infinite;
    }
    
    .logo-item {
        min-width: 160px;
        height: 80px;
        padding: 15px;
    }
    
    .logo-item img {
        max-width: 130px;
        max-height: 50px;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
    
    .logos-wrapper::before,
    .logos-wrapper::after {
        width: 50px;
    }
}

/* ===================================
   ROI Calculator Section
   =================================== */
.roi-calculator {
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    position: relative;
    overflow: hidden;
}

.roi-calculator::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(66, 153, 225, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.roi-calculator::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(128, 90, 213, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.roi-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.roi-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.roi-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Input Groups */
.input-group {
    margin-bottom: 30px;
}

.input-group label {
    display: block;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.input-group input[type="number"],
.input-group input[type="range"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--bg-light);
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.input-group input[type="range"] {
    padding: 0;
    height: 8px;
    background: var(--bg-light);
    border-radius: 10px;
    appearance: none;
    cursor: pointer;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--secondary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.input-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-color);
}

.input-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--secondary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.input-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-color);
}

.input-value {
    display: inline-block;
    margin-top: 8px;
    font-weight: 700;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* Calculate Button */
.btn-calculate {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--purple) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(66, 153, 225, 0.4);
}

.btn-calculate:active {
    transform: translateY(0);
}

/* Results Card */
.results-card {
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
}

.result-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.metric-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 15px;
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.metric-card.danger {
    border-left-color: #f56565;
}

.metric-card.success {
    border-left-color: #48bb78;
}

.metric-card.primary {
    border-left-color: var(--secondary-color);
}

.metric-card.info {
    border-left-color: var(--teal);
}

.metric-icon {
    font-size: 2rem;
}

.metric-content {
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 5px;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Success Comparison */
.success-comparison {
    margin: 40px 0;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.comparison-item {
    margin-bottom: 25px;
}

.comparison-item:last-child {
    margin-bottom: 0;
}

.comparison-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.progress-bar {
    width: 100%;
    height: 40px;
    background: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    transition: width 1s ease-out;
}

.progress-fill.danger {
    background: linear-gradient(90deg, #fc8181 0%, #f56565 100%);
}

.progress-fill.success {
    background: linear-gradient(90deg, #68d391 0%, #48bb78 100%);
}

/* Chart Container */
.chart-container {
    margin: 40px 0;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    height: 350px;
}

/* ROI Actions */
.roi-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.roi-actions .btn-primary,
.roi-actions .btn-secondary {
    flex: 1;
    padding: 14px 24px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.roi-actions .btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--purple) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.roi-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
}

.roi-actions .btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--secondary-color);
}

.roi-actions .btn-secondary:hover {
    background: var(--secondary-color);
    color: white;
}

/* Disclaimer */
.roi-disclaimer {
    margin-top: 40px;
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.roi-disclaimer p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-style: italic;
}

/* ROI Calculator Responsive Design */
@media (max-width: 1024px) {
    .roi-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .result-metrics {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .roi-card {
        padding: 30px 20px;
    }
    
    .chart-container {
        height: 250px;
        padding: 20px;
    }
    
    .roi-actions {
        flex-direction: column;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .roi-card h3 {
        font-size: 1.2rem;
    }
    
    .input-group {
        margin-bottom: 25px;
    }
    
    .btn-calculate {
        padding: 14px;
        font-size: 1rem;
    }
    
    .metric-card {
        padding: 20px;
    }
    
    .metric-value {
        font-size: 1.3rem;
    }
    
    .chart-container {
        height: 200px;
        padding: 15px;
    }
}