/* ==========================================
   RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-purple: #667eea;
    --primary-purple-dark: #764ba2;
    --accent-pink: #f093fb;
    --accent-red: #f5576c;
    --accent-cyan: #4facfe;
    --accent-cyan-light: #00f2fe;
    
    /* Neutral Colors */
    --bg-dark: #0f0f1e;
    --bg-darker: #08080f;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 120px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    background: rgba(15, 15, 30, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
}

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

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

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-cta {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

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

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-pink) 0%, var(--accent-red) 100%);
    top: 40%;
    right: -150px;
    animation-delay: 5s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-cyan-light) 100%);
    bottom: -100px;
    left: 30%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

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

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    perspective: 1000px;
}

.phone-frame {
    width: 320px;
    height: 640px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% {
        transform: translateY(0px) rotateY(-5deg);
    }
    50% {
        transform: translateY(-20px) rotateY(-5deg);
    }
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 24px;
    background: #111;
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #0f0f1e 0%, #1a1a2e 100%);
    border-radius: 32px;
    overflow: hidden;
    position: relative;
}

.message-thread {
    padding: 40px 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
}

.message.received {
    align-items: flex-start;
}

.message.sent {
    align-items: flex-end;
    align-self: flex-end;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 13px;
    line-height: 1.5;
    animation: messageSlideIn 0.4s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.received .message-bubble {
    background: rgba(102, 126, 234, 0.15);
    color: var(--text-primary);
    border: 1px solid rgba(102, 126, 234, 0.3);
}

.message.sent .message-bubble {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    color: white;
}

.message-time {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 0 4px;
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1.5px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 40px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(240, 147, 251, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
}

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

.feature-icon {
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.feature-description {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ==========================================
   USE CASE SECTION
   ========================================== */
.use-case {
    padding: var(--section-padding) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.03) 50%, transparent 100%);
}

.use-case-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.use-case-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.use-case-benefits {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 16px;
    color: var(--text-secondary);
}

.benefit svg {
    flex-shrink: 0;
    margin-top: 2px;
}

/* Workflow Diagram */
.workflow-diagram {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 48px;
    position: relative;
}

.workflow-step {
    display: flex;
    gap: 20px;
    align-items: center;
    background: rgba(102, 126, 234, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
}

.workflow-step:hover {
    transform: translateX(8px);
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.4);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

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

.workflow-arrow {
    text-align: center;
    font-size: 32px;
    color: var(--primary-purple);
    margin: 16px 0;
    animation: bounce 2s ease-in-out infinite;
}

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

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
    padding: var(--section-padding) 0;
}

.contact-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid var(--card-border);
    border-radius: 32px;
    padding: 80px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.contact-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    pointer-events: none;
}

.decoration-orb {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.2) 0%, transparent 70%);
    filter: blur(60px);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

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

.contact-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 48px;
}

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

.contact-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--primary-purple-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.contact-value:hover {
    color: var(--primary-purple);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 48px 0;
    background: var(--bg-darker);
}

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

.footer-tagline {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
}

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.footer-copyright {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-tech {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-tech strong {
    color: var(--primary-purple);
    font-weight: 600;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .use-case-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }
    
    .footer-right {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 42px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .hero-subtitle,
    .use-case-description {
        font-size: 16px;
    }
    
    .hero-cta-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .phone-frame {
        transform: scale(0.85);
    }
    
    .contact-card {
        padding: 48px 24px;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 32px;
        align-items: center;
    }
    
    .contact-item {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .workflow-diagram {
        padding: 24px;
    }
}