/* ===== CSS Variables ===== */
:root {
    --primary: #475569;
    --primary-dark: #334155;
    --primary-light: #64748b;
    --primary-bg: #f1f5f9;
    --accent: #6366f1;
    --accent-light: #818cf8;
    --secondary: #0f172a;
    --text: #334155;
    --text-light: #64748b;
    --text-dark: #0f172a;
    --white: #ffffff;
    --bg: #f1f2f6;
    --bg-alt: #e8eaef;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --transition: all 0.3s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 110px;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: linear-gradient(135deg, #475569, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
}

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

.btn-primary:hover {
    background: #1e293b;
    border-color: #1e293b;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== Announcement Bar ===== */
.announcement-bar {
    background: var(--secondary);
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding: 10px 0;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.announcement-bar a {
    color: #818cf8;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.announcement-bar a:hover {
    color: var(--white);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.logo-accent {
    color: #6366f1;
    font-size: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary);
    background: var(--primary-bg);
    font-weight: 600;
}

.nav-cta {
    padding: 10px 24px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
/* Alternating section backgrounds for depth */
.hero,
.services,
.process,
.testimonials,
.certificates,
.contact {
    background: var(--white);
}

.tools-bar,
.specializations,
.portfolio,
.about,
.faq {
    background: var(--bg);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #ecfdf5;
    color: #059669;
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #059669;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-dark);
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}

.hero-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.hero-platforms {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 40px;
}

.hero-platforms a {
    color: var(--primary);
    font-weight: 600;
}

.hero-platforms a:hover {
    text-decoration: underline;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.stat-plus {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
    margin-top: 2px;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
    width: 420px;
    height: 420px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-xl);
    background: var(--gray-100);
}

.hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    animation: float 6s ease-in-out infinite;
    white-space: nowrap;
}

.hero-float-card i {
    font-size: 18px;
    color: #6366f1;
}

.card-1 {
    top: 30px;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 80px;
    left: -40px;
    animation-delay: 2s;
}

.card-3 {
    bottom: 10px;
    right: -10px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-bg-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* ===== Tools Bar ===== */
.tools-bar {
    padding: 40px 0;
    background: var(--gray-50);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.tools-label {
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.tools-scroll {
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.tools-track {
    display: flex;
    gap: 40px;
    animation: scroll-left 30s linear infinite;
    width: max-content;
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    white-space: nowrap;
}

.tool-item i {
    font-size: 20px;
    color: var(--primary);
}

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

/* ===== Section Common Styles ===== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-bg);
    color: #6366f1;
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    position: relative;
    padding: 40px 32px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    overflow: hidden;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border-color: var(--secondary);
    background: linear-gradient(180deg, #f8fafc 0%, var(--white) 100%);
}

.service-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 12px;
    background: var(--primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    color: var(--primary);
    font-size: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.service-card:hover .service-icon {
    background: var(--secondary);
    color: var(--white);
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.service-description {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-features {
    margin-bottom: 24px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 14px;
    color: var(--text);
}

.service-features li i {
    color: #059669;
    font-size: 12px;
}

.service-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tool-tag {
    padding: 4px 12px;
    background: var(--gray-100);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 500;
    border-radius: 100px;
}

/* ===== Specializations Section ===== */
.specializations {
    padding: 100px 0;
    background: var(--gray-50);
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.spec-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    transition: var(--transition);
}

.spec-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.spec-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    color: var(--primary);
    font-size: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}

.spec-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.spec-card > p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.spec-features {
    list-style: none;
    margin-bottom: 20px;
}

.spec-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 5px 0;
    font-size: 13px;
    color: var(--text);
    line-height: 1.5;
}

.spec-features li i {
    color: var(--primary);
    font-size: 10px;
    margin-top: 5px;
    flex-shrink: 0;
}

.spec-example {
    padding: 14px 16px;
    background: var(--primary-bg);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    border-left: 3px solid var(--primary);
}

.spec-example strong {
    color: var(--primary);
}

/* ===== Process Section ===== */
.process {
    padding: 100px 0;
    background: var(--gray-50);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 0 20px;
}

.step-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.2;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

.process-step h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.process-connector {
    width: 60px;
    height: 2px;
    background: var(--gray-300);
    margin-top: 32px;
    flex-shrink: 0;
}

/* ===== Portfolio Section ===== */
.portfolio {
    padding: 100px 0;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font);
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.portfolio-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.portfolio-card.hidden {
    display: none;
}

.portfolio-image {
    position: relative;
    height: 240px;
    overflow: hidden;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-info {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-category {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: 8px;
    display: block;
}

.portfolio-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

/* Case Study Styles */
.portfolio-case-study {
    margin-bottom: 16px;
}

.case-item {
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    padding: 8px 0 8px 14px;
    border-left: 2px solid var(--primary-bg);
    margin-bottom: 8px;
}

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

.case-item strong {
    color: var(--text-dark);
    font-weight: 600;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
    padding-top: 16px;
}

.portfolio-tags span {
    padding: 4px 10px;
    background: var(--gray-100);
    color: var(--text-light);
    font-size: 12px;
    font-weight: 500;
    border-radius: 100px;
}

/* ===== Testimonials Section ===== */
.testimonials {
    padding: 100px 0;
    background: var(--gray-50);
}

.testimonials-stats {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

.trust-badge i {
    color: #f59e0b;
}

.trust-badge i.fa-check-circle {
    color: #059669;
}

.trust-badge i.fa-redo {
    color: var(--primary);
}

/* Testimonial Slider */
.testimonials-slider-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonials-slider {
    overflow: hidden;
    flex: 1;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
    min-width: calc(33.333% - 19px);
    max-width: calc(33.333% - 19px);
    margin-right: 28px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px;
    transition: var(--transition);
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 280px;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
    transform: scale(1.05);
    z-index: 10;
}

.testimonial-card:hover .testimonial-text {
    -webkit-line-clamp: unset;
    overflow: visible;
}

.slider-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--text-dark);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    z-index: 2;
}

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

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.slider-dot.active {
    background: var(--secondary);
    width: 28px;
    border-radius: 5px;
}

.testimonial-stars {
    display: flex;
    gap: 2px;
    color: #f59e0b;
    font-size: 14px;
    margin-bottom: 16px;
}

.testimonial-quote-icon {
    color: var(--primary);
    opacity: 0.12;
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
}

.testimonial-text {
    font-size: 14px;
    color: var(--text);
    line-height: 1.65;
    font-style: italic;
    margin-bottom: 20px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #6366f1;
    color: var(--white);
    border-radius: 50%;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.testimonial-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.testimonial-role {
    font-size: 13px;
    color: var(--text-light);
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: top center;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    background: var(--gray-200);
}

.about-experience {
    position: absolute;
    bottom: 30px;
    right: -20px;
    background: #6366f1;
    color: var(--white);
    padding: 20px 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.exp-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
}

.exp-text {
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-content .section-tag {
    display: inline-block;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 16px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 32px 0;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 16px;
}

.highlight i {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--radius);
    font-size: 18px;
    flex-shrink: 0;
}

.highlight h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.highlight p {
    font-size: 14px;
    color: var(--text-light);
}

/* ===== Certificates Section ===== */
.certificates {
    padding: 100px 0;
    background: var(--gray-50);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    text-align: center;
    padding: 20px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: var(--transition);
    overflow: hidden;
}

.cert-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.cert-image {
    width: 100%;
    margin-bottom: 16px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--gray-50);
}

.cert-image img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    padding: 4px;
    transition: var(--transition);
}

.cert-card:hover .cert-image img {
    transform: scale(1.03);
}

.cert-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fef3c7;
    color: #d97706;
    font-size: 24px;
    border-radius: var(--radius-lg);
    margin: 0 auto 16px;
}

.cert-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* ===== FAQ Section ===== */
.faq {
    padding: 100px 0;
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    font-family: var(--font);
    gap: 16px;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer.active {
    max-height: 300px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    padding-bottom: 20px;
}

.faq-answer a {
    color: var(--primary);
    font-weight: 500;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background: var(--gray-50);
}

.contact-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--radius);
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.contact-item p,
.contact-item a {
    font-size: 14px;
    color: var(--text-light);
}

.contact-item a:hover {
    color: var(--primary);
}

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.contact-socials a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 16px;
    transition: var(--transition);
}

.contact-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--gray-50);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: var(--font);
    color: var(--text-dark);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-300);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

/* ===== Footer ===== */
.footer {
    background: var(--secondary);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-left .logo-text {
    color: var(--white);
}

.footer-left p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: #6366f1;
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
    background: #4f46e5;
    transform: translateY(-4px);
}

/* ===== Blog Section ===== */
.blog {
    padding: 100px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 28px;
    border: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.blog-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.blog-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-light);
}

.blog-meta i {
    margin-right: 4px;
}

.blog-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.4;
}

.blog-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    flex-grow: 1;
}

.blog-read-more {
    font-size: 14px;
    font-weight: 600;
    color: #6366f1;
    transition: var(--transition);
}

.blog-card:hover .blog-read-more {
    color: #4f46e5;
}

@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Lightbox Modal ===== */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 40px;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 28px;
    background: none;
    border: none;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
    z-index: 10001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.lightbox-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 960px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.lightbox-overlay.active .lightbox-content {
    transform: scale(1) translateY(0);
}

.lightbox-image-wrap {
    width: 100%;
    background: #0f172a;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.lightbox-image-wrap img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 500px;
    object-fit: contain;
}

/* Certificate-only mode (no details panel) */
.lightbox-content.cert-mode .lightbox-image-wrap {
    border-radius: var(--radius-xl);
    background: #fff;
}

.lightbox-content.cert-mode .lightbox-image-wrap img {
    max-height: 70vh;
    padding: 20px;
}

.lightbox-details {
    padding: 28px 32px 32px;
}

.lightbox-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #6366f1;
    margin-bottom: 8px;
}

.lightbox-details h3 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.3;
}

.lightbox-case-study .case-item {
    padding: 10px 16px;
    background: var(--gray-50);
    border-left: 3px solid var(--gray-300);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.6;
}

.lightbox-case-study .case-item strong {
    color: var(--text-dark);
}

.lightbox-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}

.lightbox-tags span {
    font-size: 12px;
    padding: 4px 12px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 20px;
    font-weight: 500;
}

/* Portfolio card click hint */
.portfolio-card {
    cursor: pointer;
}

.portfolio-image {
    position: relative;
}

.portfolio-image::after {
    content: '🔍 Click to view';
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.portfolio-card:hover .portfolio-image::after {
    opacity: 1;
}

/* Cert card click hint */
.cert-card {
    cursor: pointer;
}

.cert-image {
    position: relative;
}

.cert-image::after {
    content: '🔍 Click to view';
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: var(--radius-lg);
}

.cert-card:hover .cert-image::after {
    opacity: 1;
}

@media (max-width: 768px) {
    .lightbox-overlay {
        padding: 16px;
    }
    .lightbox-content {
        max-height: 95vh;
    }
    .lightbox-details {
        padding: 20px;
    }
    .lightbox-details h3 {
        font-size: 20px;
    }
    .lightbox-close {
        top: 10px;
        right: 14px;
    }
}

/* ===== Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 44px;
    }

    .hero-container {
        gap: 40px;
    }

    .hero-image-wrapper {
        width: 350px;
        height: 350px;
    }

    .services-grid,
    .spec-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonial-card {
        min-width: calc(50% - 14px);
        max-width: calc(50% - 14px);
    }

    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-container {
        gap: 48px;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 80px;
    }

    .announcement-bar {
        font-size: 12px;
        padding: 8px 0;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translateY(5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translateY(-5px);
    }

    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-platforms {
        text-align: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .hero-image-wrapper {
        width: 280px;
        height: 280px;
    }

    .hero-float-card {
        padding: 8px 14px;
        font-size: 12px;
    }

    .card-1 { right: -10px; top: 10px; }
    .card-2 { left: -10px; bottom: 60px; }
    .card-3 { right: 0; bottom: 0; }

    .section-title {
        font-size: 32px;
    }

    .process-steps {
        flex-direction: column;
        gap: 32px;
        align-items: center;
    }

    .process-connector {
        width: 2px;
        height: 30px;
        margin: 0;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .testimonial-card {
        min-width: calc(100% - 28px);
        max-width: calc(100% - 28px);
    }

    .slider-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-image {
        display: flex;
        justify-content: center;
    }

    .about-image img {
        max-width: 320px;
    }

    .about-experience {
        right: auto;
        bottom: 20px;
    }

    .about-content .section-title {
        text-align: center;
    }

    .about-highlights {
        align-items: center;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
        max-width: 350px;
        margin: 0 auto;
    }

    .faq-question {
        font-size: 15px;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-plus {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 30px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .btn-lg {
        padding: 14px 24px;
        font-size: 15px;
    }

    .hero-image-wrapper {
        width: 240px;
        height: 240px;
    }

    .portfolio-filters {
        gap: 6px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}