:root {
    --whatsapp-green: #25D366;
    --whatsapp-dark: #075E54;
    --whatsapp-teal: #128C7E;
    --bg-primary: #0a0f0d;
    --bg-secondary: #111916;
    --bg-card: #151d19;
    --bg-card-hover: #1a241f;
    --text-primary: #f0f4f2;
    --text-secondary: #9ca89f;
    --text-muted: #5a6b5e;
    --border-color: #1e2a24;
    --accent-glow: rgba(37, 211, 102, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animated background */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
    background-image:
        radial-gradient(circle at 20% 20%, var(--accent-glow) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(18, 140, 126, 0.1) 0%, transparent 50%);
}

.noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    background: rgba(10, 15, 13, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--whatsapp-green), var(--whatsapp-teal));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--whatsapp-green);
}

.nav-cta {
    background: var(--whatsapp-green);
    color: var(--bg-primary);
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.nav-cta:hover {
    background: var(--text-primary);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 180px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Floating WhatsApp bubbles */
.hero-bubbles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.bubble {
    position: absolute;
    background: var(--accent-glow);
    border: 1px solid rgba(37, 211, 102, 0.2);
    border-radius: 20px 20px 20px 4px;
    opacity: 0;
    animation: floatBubble 8s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease-out;
}

.bubble:nth-child(1) {
    width: 60px;
    height: 40px;
    left: 10%;
    top: 20%;
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    width: 80px;
    height: 50px;
    right: 15%;
    top: 30%;
    animation-delay: 1.5s;
    border-radius: 20px 20px 4px 20px;
}

.bubble:nth-child(3) {
    width: 50px;
    height: 35px;
    left: 20%;
    bottom: 35%;
    animation-delay: 3s;
}

.bubble:nth-child(4) {
    width: 70px;
    height: 45px;
    right: 10%;
    bottom: 40%;
    animation-delay: 4.5s;
    border-radius: 20px 20px 4px 20px;
}

.bubble:nth-child(5) {
    width: 55px;
    height: 38px;
    left: 5%;
    top: 50%;
    animation-delay: 2s;
}

.bubble:nth-child(6) {
    width: 65px;
    height: 42px;
    right: 5%;
    top: 15%;
    animation-delay: 5s;
    border-radius: 20px 20px 4px 20px;
}

@keyframes floatBubble {
    0%, 100% {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }
    10% {
        opacity: 0.6;
        transform: translateY(0) scale(1);
    }
    90% {
        opacity: 0.6;
        transform: translateY(-20px) scale(1);
    }
}

/* Animated rings */
.hero-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.ring {
    position: absolute;
    border: 1px solid rgba(37, 211, 102, 0.15);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulseRing 3s ease-in-out infinite;
}

.ring:nth-child(1) {
    width: 300px;
    height: 300px;
    animation-delay: 0s;
}

.ring:nth-child(2) {
    width: 500px;
    height: 500px;
    animation-delay: 0.5s;
}

.ring:nth-child(3) {
    width: 700px;
    height: 700px;
    animation-delay: 1s;
}

.ring:nth-child(4) {
    width: 900px;
    height: 900px;
    animation-delay: 1.5s;
}

@keyframes pulseRing {
    0%, 100% {
        opacity: 0.1;
        transform: translate(-50%, -50%) scale(0.9);
    }
    50% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out, badgePulse 3s ease-in-out infinite 1s;
    position: relative;
    z-index: 2;
}

@keyframes badgePulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
    50% {
        box-shadow: 0 0 20px 4px rgba(37, 211, 102, 0.15);
    }
}

.hero-badge span {
    color: var(--whatsapp-green);
    font-weight: 600;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
    position: relative;
    z-index: 2;
}

.hero h1 .gradient {
    background: linear-gradient(135deg, var(--whatsapp-green), #4ade80, var(--whatsapp-teal), var(--whatsapp-green));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Typing cursor effect */
.hero h1 .gradient::after {
    content: '';
    display: inline-block;
    width: 4px;
    height: 0.9em;
    background: var(--whatsapp-green);
    margin-left: 8px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
    position: relative;
    z-index: 2;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s backwards;
    position: relative;
    z-index: 2;
}

/* Button hover particles */
.btn-primary {
    background: var(--whatsapp-green);
    color: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary:hover {
    background: #2ee875;
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(37, 211, 102, 0.3);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 211, 102, 0.1), transparent);
    transition: left 0.5s;
}

.btn-secondary:hover::before {
    left: 100%;
}

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--whatsapp-green);
    transform: translateY(-3px);
}

/* Stats */
.stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    margin-top: 80px;
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

.stat {
    text-align: center;
    position: relative;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--whatsapp-green);
    display: block;
    position: relative;
}

.stat-value::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--whatsapp-green), var(--whatsapp-teal));
    border-radius: 2px;
    transition: width 0.6s ease-out;
}

.stat.animated .stat-value::after {
    width: 40px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 8px;
}

/* Stat card glow effect */
.stat::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    z-index: -1;
}

.stat.animated::before {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.5);
}

/* Number pop effect */
@keyframes numberPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.stat.animated .stat-value {
    animation: numberPop 0.4s ease-out;
}

/* Apps Section */
.apps {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--whatsapp-green);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.app-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--whatsapp-green), var(--whatsapp-teal));
    opacity: 0;
    transition: opacity 0.3s;
}

.app-card:hover {
    transform: translateY(-8px);
    border-color: var(--whatsapp-dark);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.app-card:hover::before {
    opacity: 1;
}

.app-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--bg-secondary);
    line-height: 1;
    margin-bottom: 16px;
}

.app-card:hover .app-number {
    color: var(--border-color);
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-badge {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: var(--accent-glow);
    color: var(--whatsapp-green);
    border-radius: 100px;
    font-weight: 500;
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.app-features {
    list-style: none;
    margin-bottom: 24px;
}

.app-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.app-features li svg {
    color: var(--whatsapp-green);
    flex-shrink: 0;
    margin-top: 2px;
}

.app-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.app-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.app-link:hover {
    color: var(--whatsapp-green);
    border-color: var(--whatsapp-dark);
}

/* Use Cases Section */
.use-cases {
    padding: 120px 0;
    background: var(--bg-secondary);
    position: relative;
}

.use-cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.table-wrapper {
    overflow-x: auto;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

th, td {
    padding: 20px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

th:first-child {
    border-radius: 16px 0 0 0;
}

th:last-child {
    border-radius: 0 16px 0 0;
}

td {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: var(--bg-card-hover);
}

.check-icon {
    color: var(--whatsapp-green);
}

/* Installation Section */
.installation {
    padding: 120px 0;
}

.install-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.install-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
}

.install-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.install-card h4 span {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: var(--accent-glow);
    color: var(--whatsapp-green);
    border-radius: 100px;
}

.code-block {
    background: var(--bg-primary);
    border-radius: 10px;
    padding: 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--whatsapp-green);
    overflow-x: auto;
    position: relative;
}

.code-block::before {
    content: '$';
    color: var(--text-muted);
    margin-right: 12px;
}

.copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.75rem;
    font-family: 'Outfit', sans-serif;
    transition: all 0.2s;
}

.copy-btn:hover {
    color: var(--whatsapp-green);
    border-color: var(--whatsapp-dark);
}

/* CTA Section */
.cta {
    padding: 120px 0;
    text-align: center;
    position: relative;
}

.cta-box {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    padding: 80px 48px;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, var(--accent-glow) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

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

.cta-content {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 500px;
    margin: 0 auto 32px;
}

/* Footer */
footer {
    padding: 48px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-text a {
    color: var(--whatsapp-green);
    text-decoration: none;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--whatsapp-green);
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .stats {
        flex-direction: column;
        gap: 32px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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