/* ========================================
   VietTech - Ecommerce & Fulfillment
   Modern Tech Style CSS
   ======================================== */

/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #22d3ee;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --dark-card: #1e293b;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --white: #ffffff;

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #22d3ee 100%);
    --gradient-dark: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.5) 0%, rgba(139, 92, 246, 0.5) 100%);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    --transition-fast: 150ms ease;
    --transition: 300ms ease;
    --transition-slow: 500ms ease;

    --font-sans: '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: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-300);
    background: var(--dark);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Custom Cursor */
.cursor {
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    mix-blend-mode: difference;
    transition: transform 0.1s ease;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.5;
}

@media (max-width: 768px) {
    .cursor, .cursor-follower {
        display: none;
    }
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid var(--dark-lighter);
    border-radius: 50%;
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

.loader-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid transparent;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    margin-top: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.5s ease forwards;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

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

/* Typography */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 1rem;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-400);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-white {
    background: var(--white);
    color: var(--dark);
}

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

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.75rem 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
}

.logo-img {
    height: 75px;
    width: auto;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.3));
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 15px rgba(99, 102, 241, 0.6));
    }
}

.logo:hover .logo-img {
    transform: scale(1.15) rotate(5deg);
    filter: drop-shadow(0 0 25px rgba(99, 102, 241, 0.8));
    animation: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    position: relative;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-300);
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--dark-lighter);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        gap: 1rem;
        transition: var(--transition-slow);
    }

    .nav-menu.active {
        right: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-actions .btn {
        display: none;
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 1.5rem 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary);
    bottom: -150px;
    right: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: #a855f7;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -50px) scale(1.1); }
    50% { transform: translate(-30px, 30px) scale(0.95); }
    75% { transform: translate(-50px, -30px) scale(1.05); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease forwards;
}

.hero-badge i {
    animation: bounce 2s ease infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.1s;
    opacity: 0;
}

.title-line {
    display: block;
    color: var(--white);
}

.title-gradient {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-400);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.3s;
    opacity: 0;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
}

.stat-plus {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Visual */
.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    max-width: 600px;
    z-index: 1;
}

.floating-cards {
    position: relative;
    height: 400px;
}

.float-card {
    position: absolute;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    animation: floatCard 6s ease-in-out infinite;
    box-shadow: var(--shadow-lg);
}

.float-card i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.float-card span {
    font-weight: 600;
    color: var(--white);
}

.float-card small {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.card-1 {
    top: 0;
    left: 10%;
    animation-delay: 0s;
}

.card-1 i { color: var(--primary); }

.card-2 {
    top: 30%;
    right: 0;
    animation-delay: -2s;
}

.card-2 i { color: var(--secondary); }

.card-3 {
    bottom: 10%;
    left: 20%;
    animation-delay: -4s;
}

.card-3 i { color: var(--success); }

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

.dashboard-preview {
    position: absolute;
    bottom: 0;
    right: 10%;
    width: 300px;
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.dashboard-header {
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dots {
    display: flex;
    gap: 0.5rem;
}

.dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-600);
}

.dots span:first-child { background: #ef4444; }
.dots span:nth-child(2) { background: #f59e0b; }
.dots span:last-child { background: #10b981; }

.dashboard-content {
    padding: 1rem;
}

.mini-chart {
    height: 80px;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.2) 0%, transparent 100%);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.mini-chart::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.mini-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.mini-stat {
    height: 30px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-500);
    font-size: 0.75rem;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--gray-500);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--gray-500);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

    .hero-visual {
        display: none;
    }
}

@media (max-width: 640px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: 6rem 0;
    background: var(--dark);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    position: relative;
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card.featured {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
}

.service-icon {
    position: relative;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: var(--primary);
    position: relative;
    z-index: 1;
}

.icon-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.service-card:hover .icon-bg {
    background: rgba(99, 102, 241, 0.2);
    transform: rotate(10deg);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.service-card > p {
    color: var(--gray-400);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    margin-bottom: 1.5rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-300);
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
}

.service-features li i {
    color: var(--success);
    font-size: 0.75rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-light);
    font-weight: 600;
}

.service-link i {
    transition: var(--transition);
}

.service-link:hover i {
    transform: translateX(5px);
}

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

@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Features Section
   ======================================== */
.features {
    padding: 6rem 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.features-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.features-content {
    max-width: 550px;
}

.features-list {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(10px);
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
}

.feature-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.feature-text h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.feature-text p {
    font-size: 0.9375rem;
    color: var(--gray-400);
}

/* Tech Sphere */
.features-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.tech-sphere {
    position: relative;
    width: 350px;
    height: 350px;
}

.sphere-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 2px dashed rgba(99, 102, 241, 0.2);
    border-radius: 50%;
}

.ring-1 {
    width: 350px;
    height: 350px;
    transform: translate(-50%, -50%);
    animation: rotate 20s linear infinite;
}

.ring-2 {
    width: 250px;
    height: 250px;
    transform: translate(-50%, -50%);
    animation: rotate 15s linear infinite reverse;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.tech-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--dark-card);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-light);
}

.ring-1 .tech-icon:nth-child(1) { top: -25px; left: 50%; transform: translateX(-50%); }
.ring-1 .tech-icon:nth-child(2) { bottom: -25px; left: 50%; transform: translateX(-50%); }
.ring-1 .tech-icon:nth-child(3) { top: 50%; right: -25px; transform: translateY(-50%); }

.ring-2 .tech-icon:nth-child(1) { top: -25px; left: 50%; transform: translateX(-50%); }
.ring-2 .tech-icon:nth-child(2) { bottom: -25px; left: 50%; transform: translateX(-50%); }
.ring-2 .tech-icon:nth-child(3) { top: 50%; left: -25px; transform: translateY(-50%); }

.sphere-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    box-shadow: var(--shadow-glow);
    animation: pulse 3s ease-in-out infinite;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.float-el {
    position: absolute;
    width: 40px;
    height: 40px;
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    animation: floatEl 10s ease-in-out infinite;
}

.el-1 { top: 10%; left: 5%; animation-delay: 0s; }
.el-2 { top: 20%; right: 10%; animation-delay: -2.5s; }
.el-3 { bottom: 20%; left: 10%; animation-delay: -5s; }
.el-4 { bottom: 10%; right: 5%; animation-delay: -7.5s; }

@keyframes floatEl {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

@media (max-width: 1024px) {
    .features-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .features-visual {
        order: -1;
        min-height: 400px;
    }

    .tech-sphere {
        width: 280px;
        height: 280px;
    }

    .ring-1 {
        width: 280px;
        height: 280px;
    }

    .ring-2 {
        width: 200px;
        height: 200px;
    }
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.stats-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.stat-card {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 1.5rem;
    color: var(--primary-light);
}

.stat-content {
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-title {
    display: block;
    font-size: 0.9375rem;
    color: var(--gray-400);
    margin-top: 0.5rem;
}

.stat-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: var(--progress);
    animation: progressFill 2s ease forwards;
}

@keyframes progressFill {
    from { width: 0; }
    to { width: var(--progress); }
}

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

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 2.5rem;
    }
}

/* ========================================
   Process Section
   ======================================== */
.process-section {
    padding: 6rem 0;
    background: var(--dark);
}

.process-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.timeline-line {
    position: absolute;
    top: 50px;
    left: 12.5%;
    right: 12.5%;
    height: 3px;
    background: rgba(99, 102, 241, 0.2);
}

.timeline-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: var(--gradient-primary);
    animation: lineProgress 3s ease forwards;
}

@keyframes lineProgress {
    to { width: 100%; }
}

.process-step {
    position: relative;
    text-align: center;
}

.step-number {
    font-size: 4rem;
    font-weight: 800;
    color: rgba(99, 102, 241, 0.1);
    line-height: 1;
    margin-bottom: -1.5rem;
}

.step-content {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2rem 1.5rem;
    transition: var(--transition);
}

.process-step:hover .step-content {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
}

.step-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.step-icon::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--dark);
    border: 3px solid var(--primary);
    border-radius: 50%;
    top: -35px;
}

.step-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.step-content p {
    font-size: 0.9375rem;
    color: var(--gray-400);
}

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

    .timeline-line {
        display: none;
    }
}

@media (max-width: 640px) {
    .process-timeline {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
    padding: 6rem 0;
    background: var(--gradient-dark);
}

.testimonials-slider {
    position: relative;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.5s ease;
}

.testimonial-card {
    flex: 0 0 calc(33.333% - 1rem);
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.testimonial-rating i {
    color: #f59e0b;
    font-size: 1rem;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar i {
    font-size: 1.25rem;
    color: var(--white);
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 45px;
    height: 45px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    transition: var(--transition);
}

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

.slider-dots {
    display: flex;
    gap: 0.5rem;
}

.slider-dots .dot {
    width: 10px;
    height: 10px;
    background: rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dots .dot.active {
    background: var(--primary);
    width: 30px;
    border-radius: 5px;
}

@media (max-width: 1024px) {
    .testimonial-card {
        flex: 0 0 calc(50% - 0.75rem);
    }
}

@media (max-width: 640px) {
    .testimonial-card {
        flex: 0 0 100%;
    }
}

/* ========================================
   Partners Section
   ======================================== */
.partners {
    padding: 4rem 0;
    background: var(--dark);
}

.partners-slider {
    overflow: hidden;
    margin-top: 2rem;
}

.partner-track {
    display: flex;
    gap: 3rem;
    animation: scroll-partners 20s linear infinite;
}

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

.partner-logo {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.partner-logo:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
}

.partner-logo i {
    font-size: 2rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.partner-logo:hover i {
    color: var(--primary-light);
}

.partner-logo span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-400);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.cta-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
}

.cta-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.1) 1px, transparent 0);
    background-size: 30px 30px;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-content h2 .text-gradient {
    background: linear-gradient(135deg, #fbbf24, #f59e0b, #fcd34d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.cta-content > p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.cta-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.cta-features span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
}

.cta-features i {
    color: var(--white);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: 6rem 0;
    background: var(--dark);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info > p {
    color: var(--gray-400);
    margin-bottom: 2rem;
}

.contact-methods {
    margin-bottom: 2rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.contact-method:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(10px);
}

.method-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.method-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.method-content p {
    font-size: 0.9375rem;
    color: var(--gray-400);
    line-height: 1.5;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
}

.form-header {
    margin-bottom: 2rem;
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--gray-400);
}

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

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-300);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--white);
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
}

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

@media (max-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--dark-lighter);
}

.footer-top {
    padding: 4rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.3));
}

.footer-logo:hover .footer-logo-img {
    transform: scale(1.1) rotate(3deg);
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.7));
}

.footer-logo i {
    color: var(--primary);
}

.footer-brand > p {
    color: var(--gray-400);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

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

.footer-links h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul li a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-newsletter h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.footer-newsletter > p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--white);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.newsletter-form button {
    padding: 0.75rem 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: var(--white);
    transition: var(--transition);
}

.newsletter-form button:hover {
    transform: translateY(-2px);
}

.footer-bottom {
    padding: 1.5rem 0;
}

.footer-bottom-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-content > p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.footer-badges {
    display: flex;
    gap: 1.5rem;
}

.footer-badges span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-badges i {
    color: var(--success);
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 640px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-newsletter {
        grid-column: 1 / -1;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

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

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

/* ========================================
   Animations (AOS-like)
   ======================================== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* ========================================
   Responsive Utilities
   ======================================== */
@media (max-width: 640px) {
    .section-title {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }
}

/* Smooth animations for all interactive elements */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Selection color */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: var(--white);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-700);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}