/* =============================================
   RunParticle — Landing Page
   ============================================= */

/* --- Reset & Custom Properties --- */

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

:root {
    --bg-deep: #07070e;
    --bg-surface: #0e0e1a;
    --bg-elevated: #151524;
    --border: #1c1c30;
    --border-light: #26263e;

    --text-primary: #e2e2ec;
    --text-secondary: #7c7c96;
    --text-muted: #4a4a60;

    --accent: #00ff88;
    --accent-dim: #00cc6a;
    --accent-subtle: rgba(0, 255, 136, 0.06);
    --accent-glow: rgba(0, 255, 136, 0.12);

    --font-display: 'Syne', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --max-width: 1100px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--accent);
    background: var(--accent-subtle);
    padding: 2px 6px;
    border-radius: 4px;
}

/* --- Layout --- */

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

/* --- Navigation --- */

.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7, 7, 14, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-icon {
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.nav-links a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

.nav-cta {
    color: var(--accent) !important;
    border: 1px solid rgba(0, 255, 136, 0.25);
    padding: 6px 16px;
    border-radius: 6px;
    transition: background 0.2s, border-color 0.2s;
}

.nav-cta:hover {
    background: var(--accent-subtle);
    border-color: rgba(0, 255, 136, 0.4);
}

/* --- Waitlist Form --- */

.waitlist-form {
    display: flex;
    align-items: center;
    gap: 8px;
}

.waitlist-input {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 12px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    border-radius: 6px;
    outline: none;
    width: 180px;
    transition: border-color 0.2s;
}

.waitlist-input:focus {
    border-color: var(--accent);
}

.waitlist-input::placeholder {
    color: var(--text-muted);
}

.waitlist-btn {
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    background: none;
    white-space: nowrap;
}

.waitlist-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

.waitlist-success {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent);
    padding: 6px 0;
}

/* --- Hero --- */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 80px;
}

.hero-inner {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-glow {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    height: 600px;
    background: radial-gradient(
        ellipse at center,
        rgba(0, 255, 136, 0.06) 0%,
        rgba(0, 255, 136, 0.02) 35%,
        transparent 65%
    );
    pointer-events: none;
    z-index: 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: 100px;
    background: var(--accent-subtle);
    margin-bottom: 32px;
    letter-spacing: 0.02em;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2.5s ease-in-out infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.accent {
    color: var(--accent);
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 48px;
    font-weight: 300;
}

.hero-sub code {
    font-size: 0.85em;
}

/* --- Terminal --- */

.terminal {
    max-width: 620px;
    margin: 0 auto 48px;
    border-radius: 12px;
    overflow: hidden;
    background: #0b0b16;
    border: 1px solid var(--border);
    text-align: left;
    box-shadow:
        0 0 0 1px rgba(0, 255, 136, 0.04),
        0 8px 48px rgba(0, 0, 0, 0.5),
        0 0 80px rgba(0, 255, 136, 0.03);
}

.terminal-header {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.015);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 7px;
}

.terminal-dots span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.terminal-title {
    flex: 1;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.terminal-spacer {
    width: 52px;
}

.terminal-body {
    padding: 20px 22px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
    min-height: 220px;
    color: var(--text-secondary);
}

.term-line {
    white-space: pre-wrap;
    word-break: break-all;
}

.term-prompt {
    color: var(--accent);
    user-select: none;
}

.term-cmd {
    color: var(--text-primary);
}

.term-output {
    color: var(--text-secondary);
}

.term-output.success {
    color: var(--accent);
}

.term-cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

.term-spacer {
    height: 6px;
}

/* --- Install CTA --- */

.install {
    text-align: center;
}

.install-box {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    transition: border-color 0.2s;
}

.install-box:hover {
    border-color: var(--border-light);
}

.install-dollar {
    color: var(--text-muted);
    user-select: none;
}

.install-cmd {
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: inherit;
    background: none;
    padding: 0;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-elevated);
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    flex-shrink: 0;
}

.copy-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
    background: var(--border);
}

.copy-btn .check-icon {
    display: none;
}

.copy-btn.copied .copy-icon {
    display: none;
}

.copy-btn.copied .check-icon {
    display: block;
    color: var(--accent);
}

.install-note {
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- Sections (shared) --- */

.features,
.pricing,
.cta-section {
    padding: 120px 0;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 16px;
    text-align: center;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-align: center;
    margin-bottom: 16px;
}

.section-sub {
    font-size: 1.05rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 64px;
    font-weight: 300;
}

/* --- Features --- */

.features {
    border-top: 1px solid var(--border);
}

.features .section-title {
    margin-bottom: 56px;
}

.features-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.feature-card {
    flex: 0 1 320px;
    padding: 32px 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.feature-card:hover {
    border-color: rgba(0, 255, 136, 0.18);
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-subtle);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
}

.feature-card p code {
    font-size: 0.82em;
}

/* --- Pricing --- */

.pricing {
    border-top: 1px solid var(--border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.price-card {
    position: relative;
    padding: 28px 20px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
    transition: border-color 0.25s, transform 0.25s;
}

.price-card:hover {
    border-color: rgba(0, 255, 136, 0.15);
    transform: translateY(-3px);
}

.price-card.popular {
    border-color: rgba(0, 255, 136, 0.3);
    background: linear-gradient(
        to bottom,
        rgba(0, 255, 136, 0.04),
        var(--bg-surface)
    );
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--bg-deep);
    background: var(--accent);
    padding: 3px 12px;
    border-radius: 100px;
}

.price-name {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.price-specs {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.price-amount {
    margin-bottom: 6px;
}

.price-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-unit {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.price-stopped {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* --- Footer CTA --- */

.cta-section {
    border-top: 1px solid var(--border);
    text-align: center;
}

.cta-section .section-title {
    margin-bottom: 32px;
}

.footer-install {
    border-color: rgba(0, 255, 136, 0.15);
}

/* --- Footer --- */

.footer {
    border-top: 1px solid var(--border);
    padding: 24px 0;
}

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

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.footer-links a {
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

/* --- Animations --- */

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.75); }
}

/* Page load animations */
.anim {
    opacity: 0;
    transform: translateY(28px);
}

body.loaded .anim {
    animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: calc(var(--i, 0) * 0.12s);
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: calc(var(--i, 0) * 0.08s);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */

@media (max-width: 900px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

    .hero-title {
        font-size: 2.4rem;
    }

    .features,
    .pricing,
    .cta-section {
        padding: 80px 0;
    }

    .feature-card {
        flex: 0 1 100%;
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav-links {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-sub br {
        display: none;
    }

    .terminal-body {
        font-size: 0.72rem;
        padding: 16px;
    }

    .install-box {
        flex-direction: column;
        gap: 8px;
        padding: 14px 16px;
        font-size: 0.72rem;
        width: 100%;
    }

    .install-box .copy-btn {
        align-self: flex-end;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
        margin: 0 auto;
    }

    .section-title br {
        display: none;
    }

    .features,
    .pricing,
    .cta-section {
        padding: 64px 0;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .waitlist-input {
        width: 130px;
        font-size: 0.72rem;
        padding: 6px 8px;
    }
}