/* ==========================================================================
   LÊ TUÂN ADS - MODERN DESIGN SYSTEM & STYLESHEET
   Brand Colors: Primary Orange-Red #F04E23, Charcoal #1A1A1A, Light #F8FAFC
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

:root {
    /* Brand Color Palette */
    --primary: #F04E23;
    --primary-hover: #D83C14;
    --primary-light: #FFF0EB;
    --primary-glow: rgba(240, 78, 35, 0.25);
    --secondary: #1F2937;
    --accent: #FF7347;
    
    /* Light Theme Neutral Colors */
    --bg-body: #FFFFFF;
    --bg-surface: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-subtle: #F1F5F9;
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    
    /* Text Colors */
    --text-main: #0F172A;
    --text-muted: #64748B;
    --text-light: #94A3B8;
    --text-inverse: #FFFFFF;
    
    /* Status Colors */
    --success: #10B981;
    --success-light: #ECFDF5;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    /* Shadows & Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
    --shadow-xl: 0 20px 35px -5px rgba(240, 78, 35, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.04);
    
    /* Typography & Spacing */
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --container-width: 1240px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-fast);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo img {
    height: 48px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-fast);
}

.brand-logo:hover img {
    transform: scale(1.02);
}

/* Desktop Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    padding: 8px 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link svg.chevron {
    transition: transform var(--transition-fast);
}

.nav-item:hover > .nav-link svg.chevron {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition-fast);
    z-index: 1010;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-main);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.dropdown-icon {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--bg-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover .dropdown-icon {
    background: var(--primary);
    color: #FFF;
}

.dropdown-title {
    font-size: 14px;
    font-weight: 700;
}

.dropdown-desc {
    font-size: 12px;
    color: var(--text-muted);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
    transform: rotate(15deg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #FF6036 100%);
    color: #FFFFFF;
    box-shadow: 0 6px 18px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
    box-shadow: 0 8px 25px rgba(240, 78, 35, 0.4);
    transform: translateY(-2px);
    color: #FFFFFF;
}

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

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.btn-white {
    background: #FFFFFF;
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.btn-white:hover {
    background: #F8FAFC;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 6px;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 90px 0 80px;
    background: radial-gradient(circle at top right, rgba(240, 78, 35, 0.08), transparent 50%),
                radial-gradient(circle at bottom left, rgba(255, 115, 71, 0.05), transparent 40%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 50px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
    border: 1px solid rgba(240, 78, 35, 0.2);
}

.hero-badge-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 0 rgba(240, 78, 35, 0.7);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(240, 78, 35, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(240, 78, 35, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(240, 78, 35, 0); }
}

.hero-title {
    font-size: 52px;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 22px;
}

.hero-title span.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, #FF7347 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-features-list {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.feature-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

.feature-pill svg {
    color: var(--success);
    flex-shrink: 0;
}

/* Hero Visual & Glassmorphism Card */
.hero-visual {
    position: relative;
}

.hero-card-main {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 30px;
    position: relative;
    z-index: 2;
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.hero-stats-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-box {
    background: var(--bg-surface);
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.stat-box-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 4px;
}

.stat-box-value {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-main);
}

.stat-box-trend {
    font-size: 12px;
    font-weight: 700;
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
}

.floating-badge {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 3;
    animation: float 4s ease-in-out infinite;
}

.floating-badge-1 {
    top: -20px;
    right: -20px;
}

.floating-badge-2 {
    bottom: -25px;
    left: -20px;
    animation-delay: -2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Logo Ticker / Partners */
.partners-section {
    padding: 40px 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.partners-title {
    text-align: center;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 24px;
}

.partners-flex {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    opacity: 0.85;
}

.partner-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 16px;
    color: var(--text-main);
}

.partner-item svg {
    height: 28px;
    width: auto;
}

/* Sections Global */
.section {
    padding: 90px 0;
}

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

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    color: var(--primary);
    background: var(--primary-light);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 17px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Bento Grid Services */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bento-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 34px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.bento-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(240, 78, 35, 0.4);
}

.bento-card.col-span-2 {
    grid-column: span 2;
}

.bento-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 24px;
    transition: all var(--transition-fast);
}

.bento-card:hover .bento-icon {
    background: var(--primary);
    color: #FFF;
    transform: scale(1.08);
}

.bento-title {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 12px;
}

.bento-desc {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 24px;
    flex-grow: 1;
}

.bento-bullets {
    margin-bottom: 24px;
}

.bento-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-main);
}

.bento-bullets li svg {
    color: var(--primary);
    flex-shrink: 0;
}

.bento-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.bento-price {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
}

/* Process Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    position: relative;
}

.process-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    transition: all var(--transition-normal);
}

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

.step-number {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 40px;
    font-weight: 900;
    color: rgba(240, 78, 35, 0.12);
    line-height: 1;
}

.step-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.step-title {
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 10px;
}

.step-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    box-shadow: 0 12px 35px var(--primary-glow);
    transform: scale(1.03);
    z-index: 2;
}

.pricing-card.popular:hover {
    transform: scale(1.03) translateY(-6px);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #FFF;
    font-size: 12px;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    margin-bottom: 24px;
    text-align: center;
}

.pricing-name {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
}

.pricing-desc {
    font-size: 13px;
    color: var(--text-muted);
    min-height: 38px;
}

.pricing-price-wrap {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.pricing-price {
    font-size: 40px;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1;
}

.pricing-period {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.pricing-budget {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    margin-top: 8px;
    display: inline-block;
    background: var(--primary-light);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.pricing-features {
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    margin-bottom: 14px;
    color: var(--text-main);
}

.pricing-feature-item svg {
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Why Choose Us / Trust Metrics */
.stats-counter-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.counter-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

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

.counter-number {
    font-size: 44px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.counter-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
}

/* Testimonials & Case Studies */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    background: var(--bg-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 23, 42, 0.85);
    color: #FFF;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.case-body {
    padding: 24px;
}

.case-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 12px;
}

.case-stats-row {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.case-stat-val {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
}

.case-stat-lbl {
    font-size: 12px;
    color: var(--text-muted);
}

/* FAQ Accordion */
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item.active {
    border-color: var(--primary);
}

.faq-question {
    padding: 20px 24px;
    font-weight: 700;
    font-size: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-question svg {
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* CTA Banner Section */
.cta-banner {
    background: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 100%);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    color: #FFFFFF;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(240, 78, 35, 0.4) 0%, transparent 70%);
    z-index: 1;
}

.cta-banner-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.25;
}

.cta-desc {
    font-size: 17px;
    color: #CBD5E1;
    margin-bottom: 32px;
}

/* Footer */
.site-footer {
    background: #0B0E14;
    color: #94A3B8;
    padding: 70px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-brand img {
    height: 44px;
    margin-bottom: 20px;
}

.footer-company-desc {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
    color: #94A3B8;
}

.footer-meta-item {
    font-size: 13px;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-meta-item svg {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 3px;
}

.footer-heading {
    font-size: 16px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: #94A3B8;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 25px;
    padding-bottom: 90px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 13px;
    color: #94A3B8;
}

.footer-bottom div,
.footer-bottom p {
    text-align: center;
    width: 100%;
    margin: 0;
}

/* Floating Action Buttons (Hotline & Zalo) */
.floating-actions {
    position: fixed;
    bottom: 30px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 999;
}

.floating-btn {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
}

.floating-btn:hover {
    transform: scale(1.1);
}

.floating-hotline {
    background: #E11D48;
    color: #FFFFFF;
    animation: phone-shake 2s infinite;
}

.floating-zalo {
    background: #0068FF;
    color: #FFFFFF;
}

@keyframes phone-shake {
    0%, 100% { transform: rotate(0); }
    10%, 30%, 50% { transform: rotate(-12deg); }
    20%, 40% { transform: rotate(12deg); }
    60% { transform: rotate(0); }
}

.floating-tooltip {
    position: absolute;
    right: 64px;
    background: rgba(15, 23, 42, 0.9);
    color: #FFF;
    font-size: 12px;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast);
    pointer-events: none;
}

.floating-btn:hover .floating-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Mobile Offcanvas Navigation */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100%;
    background: var(--bg-card);
    z-index: 2000;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: right var(--transition-normal);
    overflow-y: auto;
}

.mobile-drawer.open {
    right: 0;
}

.mobile-drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.mobile-drawer-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-main);
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.mobile-nav-link {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
}

.mobile-sub-menu {
    padding-left: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}

.mobile-sub-link {
    font-size: 14px;
    color: var(--text-muted);
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 42px;
    }
    .bento-grid, .pricing-grid, .case-grid, .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-card.col-span-2 {
        grid-column: span 2;
    }
    .pricing-card.popular {
        transform: none;
    }
    .pricing-card.popular:hover {
        transform: translateY(-6px);
    }
    .stats-counter-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 34px;
    }
    .section-title {
        font-size: 28px;
    }
    .bento-grid, .pricing-grid, .case-grid, .process-grid {
        grid-template-columns: 1fr;
    }
    .bento-card.col-span-2 {
        grid-column: span 1;
    }
    .stats-counter-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .cta-banner {
        padding: 40px 20px;
    }
    .cta-title {
        font-size: 28px;
    }
}

/* ==========================================================================
   ENHANCED UI/UX COMPONENTS (PEXELS IMAGES, SVGS & MICRO-INTERACTIONS)
   ========================================================================== */

/* Hero Interactive Service Tabs */
.hero-tabs-wrap {
    margin-top: 32px;
}

.hero-tabs-nav {
    display: flex;
    gap: 8px;
    background: var(--bg-surface);
    padding: 6px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    max-width: fit-content;
}

.hero-tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-tab-btn:hover {
    color: var(--primary);
}

.hero-tab-btn.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.hero-tab-pane {
    display: none;
    animation: fadeIn 0.35s ease;
}

.hero-tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Enhanced Case Studies with Real Images */
.case-card-img-wrap {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.case-card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-card-img-wrap img {
    transform: scale(1.08);
}

.case-overlay-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.1) 60%, transparent 100%);
    display: flex;
    align-items: flex-end;
    padding: 18px;
}

.case-client-badge {
    background: rgba(255, 255, 255, 0.95);
    color: #0F172A;
    font-size: 12px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

/* Testimonial Cards with Client Avatars */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(240, 78, 35, 0.35);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    color: #F59E0B;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-main);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

.author-name {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-main);
}

.author-role {
    font-size: 12px;
    color: var(--text-muted);
}

/* Sticky Quick Action Pill (Mobile & Desktop UX) */
.quick-action-bar {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    padding: 8px 14px 8px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 990;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    transition: all var(--transition-normal);
}

.quick-bar-text {
    color: #FFF;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.quick-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10B981;
    animation: pulse 1.6s infinite;
}

/* Scroll To Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    z-index: 980;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background: var(--primary);
    color: #FFF;
    border-color: var(--primary);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    .hero-tabs-nav {
        flex-wrap: wrap;
        border-radius: var(--radius-md);
    }
    .quick-action-bar {
        width: calc(100% - 32px);
        bottom: 14px;
        justify-content: space-between;
    }
}