/* ========================================
   Sprinter Showcase — Investor Landing Page
   Dark theme, modern, impressive
   ======================================== */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --bg-elevated: #1e1e2a;

    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #55556a;

    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);

    --green: #22c55e;
    --green-glow: rgba(34, 197, 94, 0.4);
    --yellow: #eab308;
    --red: #ef4444;

    --border: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Stats Banner
   ======================================== */

.stats-banner {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.stats-banner-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.stat-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
}

.stat-dot.live {
    background: var(--green);
    box-shadow: 0 0 8px var(--green-glow);
    animation: pulse-dot 2s ease-in-out infinite;
}

.stat-dot.pulse {
    background: var(--accent-light);
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

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

.stat-value {
    color: var(--text-primary);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

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

.hero {
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--accent-light);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

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

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: -1;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

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

.btn-secondary:hover {
    background: var(--bg-card);
    border-color: var(--text-muted);
}

/* ========================================
   Sections
   ======================================== */

.section {
    padding: 100px 0;
}

.section-dark {
    background: var(--bg-secondary);
}

.section-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-light);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 48px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 48px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Process Flow
   ======================================== */

.process-flow {
    display: flex;
    align-items: flex-start;
    gap: 0;
    margin-top: 48px;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 200px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
}

.process-connector {
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 20px;
    align-self: center;
}

.process-connector::after {
    content: '\2192';
    color: var(--accent-light);
    font-size: 24px;
}

.process-number {
    font-size: 48px;
    font-weight: 800;
    color: rgba(99, 102, 241, 0.15);
    line-height: 1;
    margin-bottom: 12px;
}

.process-step h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   Activity Feed
   ======================================== */

.activity-feed {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-width: 700px;
    margin: 0 auto;
}

.feed-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.feed-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px var(--green-glow);
    animation: pulse-dot 2s ease-in-out infinite;
}

.feed-timestamp {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
}

.feed-items {
    max-height: 400px;
    overflow-y: auto;
}

.feed-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
    animation: feed-slide-in 0.4s ease;
}

@keyframes feed-slide-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feed-item:hover {
    background: var(--bg-card-hover);
}

.feed-item:last-child {
    border-bottom: none;
}

.feed-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-light);
    flex-shrink: 0;
}

.feed-content {
    flex: 1;
    min-width: 0;
}

.feed-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.feed-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.feed-time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 2px;
}

.feed-action {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin-right: 4px;
}

.feed-action.commit { background: rgba(34, 197, 94, 0.1); color: var(--green); }
.feed-action.message { background: rgba(99, 102, 241, 0.1); color: var(--accent-light); }
.feed-action.deploy { background: rgba(234, 179, 8, 0.1); color: var(--yellow); }
.feed-action.task { background: rgba(139, 92, 246, 0.1); color: #a78bfa; }

/* ========================================
   Team Grid
   ======================================== */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 12px;
    margin-top: 48px;
}

.team-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.team-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
}

.team-card.human {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.05);
}

.team-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-light);
    flex-shrink: 0;
}

.team-info {
    flex: 1;
    min-width: 0;
}

.team-info h4 {
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.team-info p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.team-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 100px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.team-badge.human-badge {
    background: rgba(234, 179, 8, 0.1);
    color: var(--yellow);
}

.team-status {
    font-size: 11px;
    font-weight: 600;
    flex-shrink: 0;
}

.team-status.online {
    color: var(--green);
}

/* ========================================
   Comparison Table
   ======================================== */

.comparison-table {
    margin-top: 48px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.comp-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    border-bottom: 1px solid var(--border);
}

.comp-row:last-child {
    border-bottom: none;
}

.comp-row.comp-header {
    background: var(--bg-elevated);
}

.comp-cell {
    padding: 16px 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.comp-cell.label {
    font-weight: 600;
    color: var(--text-primary);
}

.comp-cell.dim {
    color: var(--text-muted);
}

.comp-cell.highlight {
    color: var(--green);
    font-weight: 600;
    background: rgba(34, 197, 94, 0.03);
}

.comp-header .comp-cell {
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.comp-header .comp-cell.highlight {
    color: var(--accent-light);
    background: rgba(99, 102, 241, 0.05);
}

/* ========================================
   Contact
   ======================================== */

.contact-section {
    text-align: center;
}

.contact-card {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    padding: 24px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 16px;
}

.contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(234, 179, 8, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: var(--yellow);
}

.contact-info h3 {
    font-size: 16px;
    font-weight: 700;
}

.contact-info p {
    font-size: 13px;
    color: var(--text-muted);
}

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

.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.logo-text {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 13px;
    color: var(--text-muted);
    margin-left: 12px;
}

.footer-meta {
    font-size: 13px;
    color: var(--text-muted);
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 3px;
}

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

@media (max-width: 768px) {
    .hero {
        padding: 80px 0 60px;
    }

    .stats-banner-inner {
        gap: 16px;
        justify-content: center;
    }

    .stat-pill {
        font-size: 11px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .process-flow {
        flex-direction: column;
        gap: 12px;
    }

    .process-connector {
        width: auto;
        height: 20px;
        transform: rotate(90deg);
    }

    .process-step {
        min-width: auto;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .comp-row {
        grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    }

    .comp-cell {
        padding: 12px 10px;
        font-size: 12px;
    }

    .contact-card {
        flex-direction: column;
        text-align: center;
    }

    .section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .stats-banner-inner {
        gap: 8px;
    }

    .stat-pill {
        font-size: 10px;
        gap: 4px;
    }

    .stat-label {
        display: none;
    }

    .hero-title {
        font-size: 32px;
    }

    .comp-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .comp-header {
        display: none;
    }

    .comp-cell {
        padding: 8px 16px;
    }

    .comp-cell.label {
        background: var(--bg-elevated);
        padding: 12px 16px 4px;
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        color: var(--text-muted);
    }

    .comp-cell:not(.label):not(.highlight) {
        display: none;
    }

    .comp-row {
        border-bottom: 1px solid var(--border);
    }
}