/* ==========================================
   EIGENALPHA LANDING PAGE STYLESHEET
   ========================================== */

/* --- Reset & Base Variables --- */
:root {
    --bg-dark: #000000;
    --card-dark: #111111;
    --card-surface: #1c1c1e;
    --text-white: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.65);
    --text-dim: rgba(255, 255, 255, 0.4);
    
    --color-primary: #5cc5fa;     /* Luminous Cyan */
    --color-math: #8b5cfa;        /* Purple */
    --color-process: #10b981;     /* Emerald */
    --color-warning: #ffa62e;     /* Amber */
    --color-premium: #ffca28;     /* Gold */
    
    --glass-bg: rgba(20, 20, 20, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Layout Wrappers & Sticky Nav --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

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

.brand-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 0 12px rgba(92, 197, 250, 0.2);
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.nav-cta {
    background-color: var(--color-primary);
    color: var(--bg-dark);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 0 12px rgba(92, 197, 250, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(92, 197, 250, 0.5);
}

/* --- Hero Section --- */
.hero {
    min-height: 90vh;
    padding: 140px 24px 80px 24px;
    display: flex;
    align-items: center;
    position: relative;
}

/* Subtle glowing background vector */
.hero::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 5%;
    width: 45%;
    height: 60%;
    background: radial-gradient(circle, rgba(92, 197, 250, 0.08) 0%, rgba(139, 92, 250, 0.05) 50%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
    background-color: rgba(92, 197, 250, 0.1);
    padding: 6px 12px;
    border-radius: 30px;
    border: 1px solid rgba(92, 197, 250, 0.2);
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-math) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 24px;
    max-width: 580px;
}

.promo-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--color-warning);
    border-left: 2px solid var(--color-warning);
    padding-left: 16px;
    margin-bottom: 40px;
    max-width: 560px;
}

.store-badge {
    display: inline-flex;
    align-items: center;
    background-color: #111111;
    color: var(--text-white);
    border: 1px solid var(--glass-border);
    padding: 10px 24px;
    border-radius: 12px;
    text-decoration: none;
    gap: 14px;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.store-badge:hover {
    background-color: #222222;
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.store-text {
    display: flex;
    flex-direction: column;
}

.store-sub {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.6;
}

.store-main {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Phone Mockup Frame */
.hero-mockup {
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.mockup-frame {
    position: relative;
    max-width: 350px;
    width: 100%;
    border-radius: 48px;
    padding: 8px;
    background: #09090b;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.9), 
        0 0 0 3px #222225, 
        0 0 0 4px #18181b, 
        0 0 40px rgba(92, 197, 250, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.5s ease;
}

.mockup-frame:hover {
    transform: rotateY(0deg) rotateX(0deg) scale(1.02);
    box-shadow: 
        0 30px 60px -15px rgba(0, 0, 0, 0.95), 
        0 0 0 3px var(--color-primary), 
        0 0 0 4px #18181b,
        0 0 50px rgba(92, 197, 250, 0.3);
}

.app-screenshot {
    width: 100%;
    height: auto;
    border-radius: 40px;
    display: block;
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
    padding: 0 24px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* --- Features Section --- */
.features-sec {
    padding: 100px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    background-color: var(--card-dark);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.card-icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Glow effects on Hover */
.feature-card.cyan-glow:hover {
    border-color: rgba(92, 197, 250, 0.3);
    box-shadow: 0 10px 30px -10px rgba(92, 197, 250, 0.15);
    transform: translateY(-5px);
}
.feature-card.cyan-glow .card-icon {
    color: var(--color-primary);
    background-color: rgba(92, 197, 250, 0.05);
    border-color: rgba(92, 197, 250, 0.15);
}

.feature-card.purple-glow:hover {
    border-color: rgba(139, 92, 250, 0.3);
    box-shadow: 0 10px 30px -10px rgba(139, 92, 250, 0.15);
    transform: translateY(-5px);
}
.feature-card.purple-glow .card-icon {
    color: var(--color-math);
    background-color: rgba(139, 92, 250, 0.05);
    border-color: rgba(139, 92, 250, 0.15);
}

.feature-card.emerald-glow:hover {
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 0 10px 30px -10px rgba(16, 185, 129, 0.15);
    transform: translateY(-5px);
}
.feature-card.emerald-glow .card-icon {
    color: var(--color-process);
    background-color: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.15);
}

/* --- Case Study Section --- */
.case-sec {
    padding: 100px 24px;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #08080a 100%);
}

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

.case-card {
    background-color: var(--card-dark);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.case-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 32px;
}

.pill {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 30px;
    letter-spacing: 1px;
}

.pill.primary {
    color: var(--color-primary);
    background-color: rgba(92, 197, 250, 0.12);
    border: 1px solid rgba(92, 197, 250, 0.2);
}

.pill.accent {
    color: var(--color-math);
    background-color: rgba(139, 92, 250, 0.12);
    border: 1px solid rgba(139, 92, 250, 0.2);
}

.case-title {
    width: 100%;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-white);
    margin-top: 10px;
}

/* Timeline Components */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 17px;
    top: 10px;
    width: 2px;
    height: calc(100% - 30px);
    background-color: rgba(92, 197, 250, 0.15);
}

.timeline-item {
    position: relative;
    margin-bottom: 36px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.time-bubble {
    font-family: 'JetBrains Mono', monospace;
    position: absolute;
    left: -40px;
    top: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--card-dark);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 0 10px rgba(92, 197, 250, 0.2);
}

.time-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 4px;
}

.time-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* --- Legal Section (Tabbed Panels) --- */
.legal-sec {
    padding: 100px 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.tabs-container {
    background-color: var(--card-dark);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.tabs-header {
    display: flex;
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--glass-border);
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 18px 24px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
    outline: none;
}

.tab-btn:hover {
    color: var(--text-white);
    background-color: rgba(255, 255, 255, 0.01);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    background-color: rgba(92, 197, 250, 0.03);
}

.tabs-content {
    padding: 40px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane h3 {
    font-size: 1.6rem;
    font-weight: 900;
    margin-bottom: 6px;
}

.last-updated {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.tab-pane h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 24px;
    margin-bottom: 10px;
    color: var(--text-white);
}

.tab-pane p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.legal-footer {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
    margin-top: 32px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.legal-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.legal-footer a:hover {
    text-decoration: underline;
}

/* --- Contact & Support Section --- */
.contact-sec {
    padding: 40px 24px 100px 24px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: linear-gradient(135deg, rgba(92, 197, 250, 0.05) 0%, rgba(139, 92, 250, 0.03) 100%);
    border: 1px solid rgba(92, 197, 250, 0.2);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(92, 197, 250, 0.05);
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 12px;
}

.contact-card p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 28px;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.contact-btn {
    display: inline-flex;
    background-color: var(--color-primary);
    color: var(--bg-dark);
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 5px 15px rgba(92, 197, 250, 0.2);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(92, 197, 250, 0.4);
}

/* --- Footer --- */
footer {
    background-color: #080808;
    border-top: 1px solid var(--glass-border);
    padding: 40px 24px;
    color: var(--text-dim);
    font-size: 0.85rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.footer-logo {
    width: 24px;
    height: 24px;
    opacity: 0.5;
    border-radius: 5px;
}

.footer-right {
    display: flex;
    gap: 14px;
}

/* --- Responsive Adjustments --- */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .promo-text {
        border-left: none;
        border-top: 2px solid var(--color-warning);
        border-bottom: 2px solid var(--color-warning);
        padding: 12px 0;
        margin: 0 auto 40px auto;
    }
    
    .nav-menu {
        display: none; /* Hide standard links in simple mobile layouts */
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tabs-content {
        padding: 24px;
    }
    
    .tabs-header {
        flex-direction: column;
    }
    
    .tab-btn {
        border-bottom: 1px solid var(--glass-border);
    }
    
    .tab-btn.active {
        border-bottom: none;
        border-left: 3px solid var(--color-primary);
    }
    
    .footer-container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-left {
        flex-direction: column;
    }
}