/* ============================================================
   BULL UP — THE DARTS ECOSYSTEM
   Futuristic / HUD / Glassmorphism Dark Theme
   ============================================================ */

/* --- DESIGN TOKENS --- */
:root {
    --bg-deep:       #060610;
    --bg-surface:    #0c0c18;
    --bg-card:       rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --glass:         rgba(255, 255, 255, 0.06);
    --glass-border:  rgba(255, 255, 255, 0.08);
    --glass-hover:   rgba(255, 255, 255, 0.10);

    --accent:        #e63946;
    --accent-bright: #ff4d5a;
    --accent-glow:   rgba(230, 57, 70, 0.35);
    --accent-soft:   rgba(230, 57, 70, 0.12);

    --neon-blue:     #4cc9f0;
    --neon-purple:   #7b2ff7;
    --neon-green:    #06d6a0;

    --text-primary:  #f0f0f5;
    --text-secondary: rgba(240, 240, 245, 0.55);
    --text-muted:    rgba(240, 240, 245, 0.35);

    --font-body:     'Inter', -apple-system, sans-serif;
    --font-heading:  'Space Grotesk', 'Inter', sans-serif;
    --font-mono:     'JetBrains Mono', monospace;

    --radius-sm:     8px;
    --radius-md:     14px;
    --radius-lg:     20px;
    --radius-xl:     28px;

    --container:     1200px;
    --nav-height:    72px;

    --ease-out:      cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; background: none; border: none; color: inherit; font: inherit; }

/* --- ACCESSIBILITY --- */
.skip-link {
    position: fixed; top: -100px; left: 16px; z-index: 9999;
    padding: 12px 24px; background: var(--accent); color: #fff; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 14px; transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* --- CONTAINER --- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--font-heading); font-weight: 600;
    border-radius: var(--radius-md); transition: all 0.25s var(--ease-out);
    font-size: 15px; padding: 14px 32px; gap: 8px;
    position: relative; overflow: hidden;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--accent);
    box-shadow: 0 0 20px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-primary:hover {
    background: var(--accent-bright);
    box-shadow: 0 0 32px var(--accent-glow), 0 4px 24px rgba(230,57,70,0.25);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}
.btn-outline:hover {
    border-color: rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
}
.btn-lg { padding: 16px 40px; font-size: 16px; }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
#navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: var(--nav-height);
    display: flex; align-items: center;
    transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}
#navbar.nav-scrolled {
    background: rgba(6, 6, 16, 0.85);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border-bottom-color: var(--glass-border);
}
.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
}
.logo {
    display: flex; align-items: center; gap: 10px;
}
.logo img { height: 38px; }
.logo-wordmark {
    font-family: var(--font-heading); font-weight: 700; font-size: 18px;
    letter-spacing: 0.08em; display: flex; gap: 4px;
}
.logo-wordmark span:last-child { color: var(--accent); }

.nav-links {
    display: flex; gap: 32px;
}
.nav-links a {
    font-size: 13px; font-weight: 500; letter-spacing: 0.04em;
    color: var(--text-secondary); transition: color 0.2s;
    text-transform: uppercase;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }

.nav-right { display: flex; align-items: center; gap: 16px; }

.hamburger { display: none; width: 44px; height: 44px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all 0.25s var(--ease-out); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.mobile-menu {
    position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0; z-index: 99;
    background: rgba(6, 6, 16, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
    opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu[hidden] { display: none; }
.mobile-menu a {
    font-family: var(--font-heading); font-size: 22px; font-weight: 600;
    color: var(--text-secondary); transition: color 0.2s; letter-spacing: 0.04em;
}
.mobile-menu a:hover { color: var(--text-primary); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh; min-height: 100dvh;
    display: flex; align-items: center;
    padding-top: var(--nav-height);
    overflow: hidden;
}

/* Background effects */
.hero-bg {
    position: absolute; inset: 0; overflow: hidden;
    pointer-events: none;
}
.hero-orb {
    position: absolute; border-radius: 50%; filter: blur(100px);
    animation: orbFloat 12s ease-in-out infinite alternate;
}
.hero-orb-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: -10%; left: -10%;
}
.hero-orb-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(75, 201, 240, 0.15) 0%, transparent 70%);
    bottom: -15%; right: -5%;
    animation-delay: -6s;
}
@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(40px, -30px) scale(1.1); }
}

.hero-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent);
}

.hero-scanline {
    position: absolute; inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(255,255,255,0.008) 2px,
        rgba(255,255,255,0.008) 4px
    );
    pointer-events: none;
}

/* Hero layout */
.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative; z-index: 1;
}
.hero-content { max-width: 560px; }

/* HUD badge */
.hud-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px 6px 12px;
    background: var(--accent-soft);
    border: 1px solid rgba(230, 57, 70, 0.25);
    border-radius: 100px;
    font-family: var(--font-mono); font-size: 11px; font-weight: 500;
    letter-spacing: 0.12em; color: var(--accent-bright);
    text-transform: uppercase;
    margin-bottom: 24px;
}
.hud-dot {
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-glow);
    animation: hudPulse 2s ease-in-out infinite;
}
@keyframes hudPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* HUD section labels */
.hud-label {
    font-family: var(--font-mono); font-size: 11px; font-weight: 500;
    letter-spacing: 0.16em; color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 16px; display: block;
}

/* Hero typography */
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(48px, 6vw, 80px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.hero-title-accent, .text-accent {
    color: var(--accent);
}

.hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 480px;
    margin-bottom: 32px;
}

/* Hero CTAs */
.hero-ctas {
    display: flex; gap: 16px; align-items: center;
    margin-bottom: 40px;
}
.hero-ctas img { height: 52px; border-radius: 10px; transition: transform 0.2s, box-shadow 0.2s; }
.hero-ctas a:hover img { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,0.4); }

/* Hero metrics row */
.hero-metrics {
    display: flex; align-items: center; gap: 24px;
}
.hero-metric { text-align: center; }
.hero-metric-val {
    font-family: var(--font-mono); font-size: 18px; font-weight: 500;
    color: var(--text-primary); display: block; margin-bottom: 4px;
    letter-spacing: 0.08em;
}
.hero-metric-label {
    font-size: 11px; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.1em;
}
.hero-metric-divider {
    width: 1px; height: 32px;
    background: var(--glass-border);
}

/* Hero phone visual */
.hero-visual {
    display: flex; justify-content: center; align-items: center;
    position: relative;
}
.hero-phone-stack {
    position: relative;
    width: 300px; height: 560px;
}
.phone-mockup {
    position: absolute;
    width: 260px;
    border-radius: 32px;
    background: #111;
    border: 2px solid rgba(255,255,255,0.1);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.phone-screen { width: 100%; }
.phone-screen img { width: 100%; display: block; }

.phone-back {
    top: 40px; left: 0;
    transform: rotate(-6deg) scale(0.9);
    opacity: 0.5;
    filter: blur(1px);
}
.phone-front {
    top: 0; right: 0;
    z-index: 2;
    box-shadow: 0 20px 80px rgba(230,57,70,0.15), 0 10px 40px rgba(0,0,0,0.5);
}
.phone-glow {
    position: relative;
    box-shadow: 0 20px 80px rgba(230,57,70,0.2), 0 10px 40px rgba(0,0,0,0.5);
}

/* Hero scroll hint */
.hero-scroll-hint {
    position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    z-index: 2;
}
.hero-scroll-hint span {
    font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em;
    color: var(--text-muted);
}
.scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ============================================================
   SECTIONS — SHARED
   ============================================================ */
.section {
    padding: 120px 0;
    position: relative;
}
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 64px;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.section-sub {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================================
   ECOSYSTEM — ECO GRID
   ============================================================ */
.ecosystem-section {
    background: var(--bg-surface);
}
.eco-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.eco-card {
    position: relative;
    padding: 32px 28px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: background 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
}
.eco-card:hover {
    background: var(--glass-hover);
    border-color: rgba(255,255,255,0.12);
    transform: translateY(-4px);
}
.eco-card-wide {
    grid-column: 1 / -1;
}
.eco-card-glow {
    position: absolute; top: -50%; left: -20%; width: 60%; height: 200%;
    background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.15; filter: blur(60px);
    pointer-events: none;
}
.eco-card-icon {
    width: 48px; height: 48px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-soft);
    border: 1px solid rgba(230,57,70,0.2);
    border-radius: var(--radius-sm);
    color: var(--accent-bright);
    margin-bottom: 20px;
}
.eco-card h3 {
    font-family: var(--font-heading);
    font-size: 18px; font-weight: 600;
    margin-bottom: 10px;
}
.eco-card p {
    font-size: 14px; line-height: 1.7;
    color: var(--text-secondary);
}

/* ============================================================
   SPLIT BLOCKS (SCORE / COMPETE / VENUES)
   ============================================================ */
.split-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.split-block.reverse { direction: rtl; }
.split-block.reverse > * { direction: ltr; }

.split-body {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 28px;
}

/* Feature chips */
.feature-chips {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-top: 24px;
}
.chip {
    display: inline-flex; align-items: center;
    padding: 6px 14px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 12px; font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    transition: background 0.2s, color 0.2s;
}
.chip:hover {
    background: var(--accent-soft);
    color: var(--accent-bright);
    border-color: rgba(230,57,70,0.2);
}

/* Stat row */
.stat-row {
    display: flex; gap: 24px;
    margin-top: 28px; margin-bottom: 8px;
}
.stat-block {
    padding: 16px 20px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    flex: 1;
    text-align: center;
}
.stat-val {
    font-family: var(--font-mono);
    font-size: 20px; font-weight: 600;
    color: var(--accent-bright);
    margin-bottom: 4px;
}
.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Phone / tablet mockups in split blocks */
.split-visual {
    display: flex; justify-content: center;
}
.tablet-mockup {
    width: 100%; max-width: 500px;
    border-radius: 20px;
    background: #111;
    border: 2px solid rgba(255,255,255,0.08);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.tablet-glow {
    box-shadow: 0 20px 80px rgba(230,57,70,0.12), 0 10px 40px rgba(0,0,0,0.4);
}
.tablet-screen img { width: 100%; display: block; }

/* ============================================================
   COMPETE SECTION
   ============================================================ */
.compete-section {
    background: var(--bg-surface);
}

/* ============================================================
   TRAIN — DRILLS GRID
   ============================================================ */
.drills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}
.drill-card {
    position: relative;
    padding: 28px 24px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: background 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
    overflow: hidden;
}
.drill-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.drill-card:hover {
    background: var(--glass-hover);
    border-color: rgba(255,255,255,0.12);
    transform: translateY(-3px);
}
.drill-card:hover::before { opacity: 1; }

.drill-num {
    font-family: var(--font-mono);
    font-size: 12px; font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 12px; display: block;
}
.drill-card h3 {
    font-family: var(--font-heading);
    font-size: 16px; font-weight: 600;
    margin-bottom: 8px;
}
.drill-card p {
    font-size: 13px; line-height: 1.65;
    color: var(--text-secondary);
}

/* Practice metrics bar */
.practice-metrics {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
}
.practice-metric-header {
    font-family: var(--font-mono);
    font-size: 11px; font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.practice-metric-items {
    display: flex; flex-wrap: wrap; gap: 10px;
}
.practice-metric-items span {
    padding: 6px 14px;
    background: var(--accent-soft);
    border: 1px solid rgba(230,57,70,0.15);
    border-radius: 100px;
    font-size: 12px; font-weight: 500;
    color: var(--accent-bright);
}

/* ============================================================
   VENUES
   ============================================================ */
.venues-section {
    position: relative;
    background: linear-gradient(180deg, var(--bg-deep) 0%, #0a0a1a 100%);
    overflow: hidden;
}
.venues-bg {
    position: absolute; inset: 0;
    background: url('assets/bg.png') center/cover no-repeat;
    opacity: 0.12;
    filter: blur(2px);
}

.venue-features {
    display: flex; flex-direction: column; gap: 14px;
    margin-top: 28px;
}
.venue-feat {
    display: flex; align-items: center; gap: 12px;
    font-size: 14px; color: rgba(255,255,255,0.7);
}
.venue-feat svg { color: var(--accent); flex-shrink: 0; }

/* Venue price card */
.venue-price-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px 36px;
    text-align: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}
.venue-price-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.vpc-badge {
    display: inline-block;
    padding: 4px 14px;
    background: var(--accent-soft);
    border: 1px solid rgba(230,57,70,0.25);
    border-radius: 100px;
    font-family: var(--font-mono); font-size: 10px; font-weight: 600;
    letter-spacing: 0.14em; color: var(--accent-bright);
    margin-bottom: 20px;
}
.vpc-price {
    font-family: var(--font-heading);
    font-size: 48px; font-weight: 700;
    color: var(--text-primary);
}
.vpc-price span {
    font-size: 16px; font-weight: 500;
    color: var(--text-secondary);
}
.vpc-regular {
    font-size: 13px; color: var(--text-muted);
    margin-top: 4px;
    text-decoration: line-through;
}
.vpc-divider {
    width: 60px; height: 1px;
    background: var(--glass-border);
    margin: 24px auto;
}
.vpc-features {
    text-align: left;
    display: flex; flex-direction: column; gap: 10px;
}
.vpc-features li {
    font-size: 14px; color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}
.vpc-features li::before {
    content: '';
    position: absolute; left: 0; top: 7px;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-section {
    background: var(--bg-surface);
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: start;
}
.pricing-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 36px 28px 32px;
    position: relative;
    transition: transform 0.3s var(--ease-out), border-color 0.3s;
}
.pricing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.12);
}
.pricing-card.featured {
    border-color: rgba(230,57,70,0.3);
    background: rgba(230,57,70,0.05);
    box-shadow: 0 0 40px rgba(230,57,70,0.08);
}
.pricing-card.featured::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.pc-popular {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--accent);
    color: #fff;
    border-radius: 100px;
    font-family: var(--font-mono); font-size: 10px; font-weight: 600;
    letter-spacing: 0.12em;
    white-space: nowrap;
}
.pc-tier {
    font-family: var(--font-heading);
    font-size: 16px; font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.pc-price {
    font-family: var(--font-heading);
    font-size: 44px; font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}
.pc-period {
    font-size: 13px; color: var(--text-muted);
    margin-bottom: 20px;
}
.pc-divider {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin-bottom: 20px;
}
.pc-features {
    display: flex; flex-direction: column; gap: 10px;
    margin-bottom: 28px;
}
.pc-features li {
    font-size: 14px; display: flex; align-items: center; gap: 10px;
}
.pc-features li.active { color: var(--text-secondary); }
.pc-features li.active svg { color: var(--neon-green); }
.pc-features li.inactive {
    color: var(--text-muted);
    padding-left: 24px;
    position: relative;
}
.pc-features li.inactive::before {
    content: '\2014';
    position: absolute; left: 0;
}
.pc-cta { width: 100%; text-align: center; }

/* ============================================================
   DOWNLOAD
   ============================================================ */
.download-section {
    padding: 100px 0;
}
.download-block {
    position: relative;
    padding: 64px 48px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}
.download-glow {
    position: absolute;
    top: -50%; left: 50%; transform: translateX(-50%);
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
    opacity: 0.2; filter: blur(80px);
    pointer-events: none;
}
.store-buttons {
    display: flex; justify-content: center; gap: 16px;
    margin-bottom: 20px;
}
.store-buttons img {
    height: 56px; border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.store-buttons a:hover img {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.download-note {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.04em;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-section {
    background: var(--bg-surface);
}
.faq-grid {
    max-width: 720px;
    margin: 0 auto;
    display: flex; flex-direction: column; gap: 8px;
}
.faq-item {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s;
}
.faq-item:hover { border-color: rgba(255,255,255,0.12); }
.faq-question {
    width: 100%; text-align: left;
    padding: 20px 24px;
    font-family: var(--font-heading);
    font-size: 15px; font-weight: 600;
    color: var(--text-primary);
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    min-height: 44px;
}
.faq-question:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: var(--radius-md); }
.faq-icon {
    flex-shrink: 0;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    transition: transform 0.25s var(--ease-out), background 0.25s;
}
.faq-icon.open {
    transform: rotate(45deg);
    background: var(--accent-soft);
}
.faq-icon svg { color: var(--text-secondary); }
.faq-answer {
    max-height: 0; overflow: hidden;
    padding: 0 24px;
    font-size: 14px; line-height: 1.7;
    color: var(--text-secondary);
    transition: max-height 0.35s var(--ease-out), padding 0.35s;
}
.faq-answer.open {
    max-height: 200px;
    padding: 0 24px 20px;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--glass-border);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-desc {
    font-size: 14px; color: var(--text-muted);
    margin-top: 12px;
}
.footer-col-title {
    font-family: var(--font-heading);
    font-size: 12px; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.footer-links {
    display: flex; flex-direction: column; gap: 10px;
}
.footer-links a {
    font-size: 14px; color: var(--text-secondary);
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-primary); }

.footer-badges {
    display: flex; flex-direction: column; gap: 8px;
}
.footer-badge {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 8px 16px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    font-size: 12px; font-weight: 500;
    color: var(--text-secondary);
    transition: background 0.2s;
}
.footer-badge:hover { background: var(--glass-hover); }

.footer-bottom {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.04);
}

/* ============================================================
   MOBILE STICKY BAR
   ============================================================ */
.mobile-sticky {
    position: fixed; bottom: -80px; left: 0; right: 0; z-index: 90;
    display: none;
    align-items: center; justify-content: space-between;
    padding: 12px 20px;
    background: rgba(6, 6, 16, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    transition: bottom 0.3s var(--ease-out);
}
.mobile-sticky.show { bottom: 0; }
.mobile-sticky-text {
    font-family: var(--font-heading); font-size: 14px; font-weight: 600;
}

/* ============================================================
   FADE-IN ANIMATIONS
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 48px; }
    .hero-content { max-width: 100%; margin: 0 auto; }
    .hero-sub { margin: 0 auto 32px; }
    .hero-ctas { justify-content: center; }
    .hero-metrics { justify-content: center; }
    .hero-visual { order: -1; }
    .hero-phone-stack { width: 240px; height: 440px; }

    .nav-links { display: none; }
    .hamburger { display: flex; }
    .nav-cta-desktop { display: none; }

    .eco-grid { grid-template-columns: 1fr 1fr; }
    .eco-card-wide { grid-column: 1 / -1; }

    .split-block { grid-template-columns: 1fr; gap: 40px; }
    .split-block.reverse { direction: ltr; }
    .split-visual { order: -1; }

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

    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }

    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .section { padding: 80px 0; }

    .hero { min-height: auto; padding: 120px 0 80px; }
    .hero-title { font-size: 40px; }
    .hero-phone-stack { width: 200px; height: 380px; }
    .phone-mockup { width: 200px; }
    .hero-metrics { flex-direction: column; gap: 12px; }
    .hero-metric-divider { width: 32px; height: 1px; }
    .hero-scroll-hint { display: none; }

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

    .stat-row { flex-direction: column; gap: 12px; }

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

    .pricing-card { padding: 28px 20px 24px; }

    .download-block { padding: 40px 24px; }
    .store-buttons { flex-direction: column; align-items: center; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    .mobile-sticky { display: flex; }
}

/* Focus-visible for keyboard users */
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}