/* ============================================
   VoiceSeal Design System
   ============================================ */

:root {
    /* Primary Colors */
    --navy: #0A1628;
    --navy-light: #162033;
    --navy-lighter: #1E2D47;
    
    /* Accent Colors */
    --teal: #00D4AA;
    --teal-dark: #00B894;
    --teal-light: #00F5C4;
    --gold: #F4B942;
    --gold-dark: #D4A030;
    --coral: #FF6B6B;
    
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0A1628 0%, #162033 50%, #1E2D47 100%);
    --gradient-teal: linear-gradient(135deg, #00D4AA 0%, #00B894 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --container: 1200px;
    --section-padding: 100px;
    
    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.3);
    
    /* Borders */
    --radius: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--navy);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p { color: var(--gray-600); }

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

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

/* ============================================
   Container
   ============================================ */

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

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-teal);
    color: var(--navy);
    box-shadow: var(--shadow-md), 0 0 20px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 212, 170, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--teal);
    border: 2px solid var(--teal);
}

.btn-outline:hover {
    background: var(--teal);
    color: var(--navy);
}

.btn-gold {
    background: var(--gold);
    color: var(--navy);
}

.btn-gold:hover {
    background: var(--gold-dark);
    transform: translateY(-2px);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-teal);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

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

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--teal);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */

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

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.08) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(244, 185, 66, 0.05) 0%, transparent 50%);
    animation: pulse 10s ease-in-out infinite reverse;
}

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

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    color: var(--white);
    margin-bottom: 24px;
}

.hero-text h1 span {
    background: var(--gradient-teal);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

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

.stat {
    text-align: left;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--teal);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

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

.waveform-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.waveform-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(0, 212, 170, 0.2);
    animation: ringPulse 3s ease-out infinite;
}

.waveform-ring:nth-child(1) { width: 200px; height: 200px; animation-delay: 0s; }
.waveform-ring:nth-child(2) { width: 300px; height: 300px; animation-delay: 0.5s; }
.waveform-ring:nth-child(3) { width: 400px; height: 400px; animation-delay: 1s; }

@keyframes ringPulse {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.2); opacity: 0; }
}

.shield-icon {
    position: relative;
    z-index: 2;
    width: 150px;
    height: 150px;
    background: var(--gradient-teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.shield-icon svg {
    width: 70px;
    height: 70px;
    fill: var(--navy);
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: float 4s ease-in-out infinite;
}

.floating-card:nth-child(2) { top: 5%; right: -5%; animation-delay: 0s; }
.floating-card:nth-child(3) { top: 45%; left: -10%; animation-delay: 1s; }
.floating-card:nth-child(4) { bottom: 5%; right: 5%; animation-delay: 2s; }

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

.card-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 170, 0.2);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal);
}

.card-text {
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 500;
}

.card-subtext {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
}

/* ============================================
   Section Styles
   ============================================ */

section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-label {
    display: inline-block;
    background: rgba(0, 212, 170, 0.1);
    color: var(--teal-dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
}

/* ============================================
   Features Grid
   ============================================ */

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

.feature-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--teal);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-card p {
    font-size: 0.95rem;
}

/* ============================================
   How It Works
   ============================================ */

.steps-container {
    position: relative;
}

.steps-line {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--teal), var(--gold), var(--coral));
    z-index: 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.step {
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--white);
    border: 3px solid var(--teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--teal);
    box-shadow: var(--shadow-md);
}

.step h4 {
    margin-bottom: 8px;
}

.step p {
    font-size: 0.9rem;
}

/* ============================================
   Pricing
   ============================================ */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    transition: var(--transition);
}

.pricing-card.featured {
    border-color: var(--teal);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(0, 212, 170, 0.2);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    display: inline-block;
    background: var(--gradient-teal);
    color: var(--navy);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.pricing-card h3 {
    margin-bottom: 8px;
}

.pricing-card .price {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy);
    margin: 16px 0;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
}

.pricing-features {
    list-style: none;
    margin: 24px 0;
    text-align: left;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.pricing-features li::before {
    content: '✓';
    color: var(--teal);
    font-weight: 700;
}

/* ============================================
   Testimonials
   ============================================ */

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

.testimonial-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 24px;
    color: var(--gray-700);
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--navy);
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.author-info p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.25rem;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--navy);
    padding: 80px 0 40px;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    margin: 16px 0 24px;
    max-width: 300px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--teal);
    color: var(--navy);
}

.footer-links h4 {
    color: var(--teal);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ============================================
   Page Header (for inner pages)
   ============================================ */

.page-header {
    background: var(--gradient-hero);
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
}

.page-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

/* ============================================
   Content Styles (for inner pages)
   ============================================ */

.content-section {
    padding: 80px 0;
}

.content-section:nth-child(even) {
    background: var(--gray-50);
}

.prose {
    max-width: 800px;
    margin: 0 auto;
}

.prose h2 {
    font-size: 1.75rem;
    margin-top: 48px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-200);
}

.prose h2:first-child {
    margin-top: 0;
}

.prose h3 {
    font-size: 1.25rem;
    margin-top: 32px;
    margin-bottom: 16px;
}

.prose p {
    margin-bottom: 16px;
}

.prose ul, .prose ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.prose li {
    margin-bottom: 8px;
    color: var(--gray-600);
}

.prose a {
    color: var(--teal-dark);
    text-decoration: underline;
}

.prose a:hover {
    color: var(--coral);
}

.last-updated {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-bottom: 32px;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid,
    .pricing-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .steps {
        grid-template-columns: 1fr 1fr;
    }
    
    .steps-line {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    section {
        padding: 60px 0;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .stat {
        text-align: center;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}