/* 
    VoiceAgent Design System 
    Modern, Premium, SaaS Aesthetic
*/

:root {
    /* Colors */
    --bg-dark: #0a0c10;
    --bg-card: rgba(255, 255, 255, 0.05);
    --primary: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --accent: #06b6d4; /* Cyan */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(10, 12, 16, 0.8);
    
    /* Spacing */
    --container-max: 1200px;
    --section-pad: 100px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, .logo-text {
    font-family: 'Outfit', sans-serif;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-main);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-main);
}

.mobile-menu-toggle {
    display: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white !important;
}

.btn-primary:hover {
    background: var(--primary-hover);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border: 1px solid var(--border);
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white !important;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Hero Section */
.hero {
    padding-top: 180px;
    padding-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    z-index: -1;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.tagline {
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 14px;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 64px;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(to bottom right, #fff 50%, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 540px;
}

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

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

.hero-visual {
    position: relative;
}

.visual-placeholder {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 10px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
    overflow: hidden;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
}

/* Social Proof */
.social-proof {
    padding: 60px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
}

.logo-cloud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
    opacity: 0.6;
}

.logo-item {
    font-weight: 700;
    font-size: 20px;
    color: var(--text-muted);
}

/* Sections General */
section {
    padding: var(--section-pad) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 24px;
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.benefit-icon {
    font-size: 32px;
    margin-bottom: 24px;
}

.benefit-card-title {
    font-size: 22px;
    margin-bottom: 12px;
}

.benefit-card-desc {
    color: var(--text-muted);
}

/* Features Grid */
.features {
    background: rgba(99, 102, 241, 0.02);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.feature-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.feature-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.feature-item-title {
    font-size: 20px;
    margin-bottom: 8px;
}

.feature-item-desc {
    color: var(--text-muted);
    font-size: 15px;
}

/* Automation Section */
.automation {
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.automation-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.automation-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 32px;
    border-radius: 24px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.automation-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
}

.automation-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.automation-card-title {
    font-size: 24px;
    margin-bottom: 16px;
}

.automation-card-desc {
    color: var(--text-muted);
    line-height: 1.8;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step-card {
    position: relative;
    padding-top: 40px;
}

.step-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
}

.step-number {
    color: var(--primary);
    font-weight: 800;
    font-size: 14px;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.step-title {
    font-size: 20px;
}

.step-desc {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

.step-visual {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: auto;
}

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

/* Trial Section */
.trial {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(6, 182, 212, 0.05));
}

.trial-inner {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 32px;
    padding: 60px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: center;
}

.trial-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.trial-text {
    color: var(--text-muted);
    font-size: 18px;
    margin-bottom: 32px;
}

.trial-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.trial-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.trial-icon {
    color: var(--accent);
    font-weight: 800;
}

.trial-cta {
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 24px;
    border: 1px solid var(--border);
}

.trial-price-tag {
    font-size: 64px;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    line-height: 1;
    margin-bottom: 8px;
}

.trial-price-label {
    color: var(--text-muted);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 48px 32px;
    border-radius: 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-tier {
    font-size: 24px;
    margin-bottom: 8px;
}

.pricing-tagline {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 32px;
}

.pricing-price {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 8px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.pricing-price .currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-muted);
}

.pricing-price .period {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-muted);
}

.pricing-detail {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 8px;
}

.pricing-includes {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.pricing-fees {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.pricing-usage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.usage-item {
    display: flex;
    flex-direction: column;
}

.usage-rate {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
}

.usage-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-notice {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 24px;
}

.pricing-single {
    max-width: 500px;
    margin: 0 auto;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 40px;
    flex-grow: 1;
}

.pricing-features li {
    margin-bottom: 12px;
    color: var(--text-muted);
    display: flex;
    gap: 12px;
}

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

/* Trust Section */
.trust-inner {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
    border-radius: 32px;
    padding: 80px;
    border: 1px solid var(--border);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-top: 48px;
}

.trust-item strong {
    display: block;
    font-size: 18px;
    margin-bottom: 8px;
}

.trust-item p {
    color: var(--text-muted);
    font-size: 15px;
}

/* Contact Section */
.contact-box {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 32px;
    padding: 60px;
}

.contact-header {
    text-align: center;
    margin-bottom: 48px;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    padding: 14px 18px;
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

.privacy-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* Footer */
.site-footer {
    padding: 60px 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-inner p {
    color: var(--text-muted);
    font-size: 15px;
}

.footer-inner strong {
    color: var(--text-main);
}

.footer-inner a {
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition);
}

.footer-inner a:hover {
    color: var(--primary);
}

.footer-legal {
    margin-top: 12px;
    font-size: 14px !important;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 48px; }
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .pricing-grid, .automation-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .pricing-card.featured { transform: scale(1); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid { grid-template-columns: 1fr; gap: 32px; }
    .trial-inner { grid-template-columns: 1fr; text-align: center; padding: 40px 24px; }
    .trial-content .section-title { text-align: center; }
    .trial-features { align-items: center; }
    .trial-cta { margin-top: 40px; }
}

@media (max-width: 768px) {
    .nav { 
        display: none; 
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 40px;
        border-bottom: 1px solid var(--border);
        z-index: 999;
    }
    
    .nav.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 6px;
        background: transparent;
        border: none;
        cursor: pointer;
    }

    .mobile-menu-toggle span {
        width: 30px;
        height: 2px;
        background: var(--text-main);
        transition: var(--transition);
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .benefits-grid, .features-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .section-title { font-size: 32px; }
    .contact-box { padding: 40px 24px; }
}

@media (max-width: 480px) {
    .steps-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 36px; }
}