:root {
    --navy: rgb(13,48,92);
    --ocean: rgb(0,122,255); /* App accent #007AFF */
    --foam: rgb(191,230,252);
    --text: #f7f9fc;
    --muted: rgba(255,255,255,0.75);
    --card-bg: rgba(255,255,255,0.08);
    --card-stroke: rgba(255,255,255,0.18);
    --shadow: rgba(13,48,92,0.28);
    --link: #bfe6fc;
    --ok: #ffd64d;
    --accent: #007AFF; /* App accent */
}

* { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    color: var(--text);
    background: radial-gradient(1200px 600px at 10% -10%, rgba(0,115,209,0.28), transparent 60%),
                linear-gradient(180deg, rgba(0,115,209,0.30), rgba(13,48,92,0.94)) fixed,
                var(--navy);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.wrap {
    max-width: 1080px;
    margin: 0 auto;
    padding: 36px 16px 72px;
    min-height: 100vh;
}

/* Hero (home) */
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: center; flex-grow: 1; padding: 48px 0; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; gap: 24px; padding: 24px 0; } }
.hero-content h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1.5rem; font-weight: 700; line-height: 1.1; background: linear-gradient(135deg, var(--text), var(--foam)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-content p { font-size: 1.2rem; line-height: 1.6; margin-bottom: 2rem; color: var(--muted); }
.cta-button { display: inline-flex; align-items: center; gap: 12px; padding: 16px 24px; border-radius: 28px; color: var(--text); background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.08)); border: 2px solid var(--card-stroke); box-shadow: 0 8px 32px var(--shadow), inset 0 1px 0 rgba(255,255,255,0.2); text-decoration: none; transition: all 0.3s ease; font-weight: 600; font-size: 1.1rem; backdrop-filter: blur(12px); }
.cta-button:hover { transform: translateY(-2px); box-shadow: 0 12px 48px var(--shadow), inset 0 1px 0 rgba(255,255,255,0.3); border-color: rgba(255,255,255,0.3); }

/* Cards */
.feature-card, .card { background: var(--card-bg); border: 1px solid var(--card-stroke); border-radius: 20px; padding: 32px; box-shadow: 0 8px 32px var(--shadow); backdrop-filter: blur(16px); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent); }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), var(--foam), var(--ocean)); }

/* Typography */
h1 { font-size: clamp(2rem, 5vw, 2.6rem); margin: 0 0 24px 0; font-weight: 700; background: linear-gradient(135deg, var(--text), var(--foam)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
h2 { font-size: 1.5rem; margin: 40px 0 20px 0; font-weight: 600; color: var(--foam); position: relative; padding-left: 20px; }
h2::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 4px; height: 24px; background: linear-gradient(180deg, var(--foam), var(--ocean)); border-radius: 2px; }
p, li { font-size: 1rem; line-height: 1.8; color: var(--muted); }
a { color: var(--link); text-decoration: none; border-bottom: 1px dashed rgba(191,230,252,0.5); transition: all 0.3s ease; position: relative; }
a:hover { border-bottom-color: var(--link); text-shadow: 0 0 8px rgba(191,230,252,0.4); }

/* Meta & badges */
.meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; font-size: 14px; color: var(--muted); flex-wrap: wrap; gap: 16px; }
.badge { background: linear-gradient(135deg, var(--accent), #ffdb4d); color: #0b274a; padding: 8px 16px; border-radius: 16px; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; box-shadow: 0 4px 12px rgba(255,159,28,0.3); }

/* Top toolbar/chips */
.toolbar { margin-bottom: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 16px; color: var(--text); background: var(--card-bg); border: 1px solid var(--card-stroke); text-decoration: none; transition: all 0.3s ease; font-size: 0.9rem; font-weight: 500; position: relative; overflow: hidden; }
.chip::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent); transition: left 0.5s ease; }
.chip:hover::before { left: 100%; }
.chip:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.3); box-shadow: 0 6px 20px var(--shadow); }

/* Bottom navigation cards */
.navigation { margin-top: 64px; padding-top: 48px; border-top: 1px solid var(--card-stroke); position: relative; }
.navigation::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 1px; background: var(--foam); box-shadow: 0 0 20px var(--foam); }
.nav-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; max-width: 600px; margin: 0 auto; }
.nav-card { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 20px; border-radius: 16px; background: var(--card-bg); border: 1px solid var(--card-stroke); color: var(--text); text-decoration: none; transition: all 0.3s ease; position: relative; overflow: hidden; }
.nav-card::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent); transition: left 0.5s ease; }
.nav-card:hover::before { left: 100%; }
.nav-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.3); box-shadow: 0 12px 32px var(--shadow); }
.nav-icon { font-size: 1.5rem; margin-bottom: 4px; }
.nav-title { font-weight: 600; font-size: 0.95rem; }
.nav-desc { font-size: 0.8rem; color: var(--muted); text-align: center; }
@media (max-width: 600px) { .nav-grid { grid-template-columns: 1fr 1fr; gap: 12px; } .nav-card { padding: 16px 12px; } }

/* Floating background bubbles (home) */
.floating-elements { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: -1; }
.bubble { position: absolute; background: radial-gradient(circle, rgba(191,230,252,0.1), rgba(191,230,252,0.03)); border-radius: 50%; animation: float 20s infinite linear; }
.bubble:nth-child(1) { width: 80px; height: 80px; left: 10%; animation-delay: 0s; }
.bubble:nth-child(2) { width: 120px; height: 120px; left: 20%; animation-delay: 2s; }
.bubble:nth-child(3) { width: 60px; height: 60px; left: 70%; animation-delay: 4s; }
.bubble:nth-child(4) { width: 100px; height: 100px; left: 80%; animation-delay: 6s; }
@keyframes float { 0% { transform: translateY(100vh) scale(0); opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { transform: translateY(-100px) scale(1); opacity: 0; } }

/* Utility */
.pill { display: inline-flex; align-items: center; gap: 12px; padding: 16px 20px; border-radius: 28px; background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.08)); border: 2px solid var(--card-stroke); box-shadow: 0 8px 32px var(--shadow), inset 0 1px 0 rgba(255,255,255,0.2); backdrop-filter: blur(12px); color: var(--text); white-space: nowrap; margin-bottom: 24px; }
.pill .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px rgba(0,122,255,0.6); animation: glow 3s ease-in-out infinite alternate; }
@keyframes glow { from { box-shadow: 0 0 8px rgba(0,122,255,0.4); } to { box-shadow: 0 0 16px rgba(0,122,255,0.8); } }

.footer { margin-top: 48px; padding-top: 32px; border-top: 2px solid rgba(255,255,255,0.15); font-size: 14px; color: var(--muted); text-align: center; position: relative; }
.footer::before { content: ''; position: absolute; top: -1px; left: 50%; transform: translateX(-50%); width: 60px; height: 2px; background: var(--foam); box-shadow: 0 0 20px var(--foam); }

.version, .version-info { margin-top: 24px; text-align: center; font-size: 12px; color: rgba(255,255,255,0.55); font-family: 'SF Mono', 'Monaco', monospace; }

/* Ensure consistent nav-grid layout across all pages */
.nav-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; max-width: 600px; margin: 0 auto; }