/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: hidden; }
body { overflow-x: hidden; }

:root {
    --bg: #f4f1ec;
    --surface: #ffffff;
    --surface2: #f0ede8;
    --border: #d4cfc8;
    --accent: #0077aa;
    --accent2: #008850;
    --petrol: #0077aa;
    --diesel: #b86c00;
    --super: #6d4faa;
    --text: #1a1a1a;
    --muted: #6b6560;
    --danger: #cc2222;
    --card-radius: 12px;
    --space: clamp(0.75rem, 3vw, 1.5rem);
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: #f4f1ec;
    background-image:
        radial-gradient(ellipse 55% 35% at 15% 45%, rgba(180,160,120,0.25) 0%, transparent 60%),
        radial-gradient(ellipse 50% 30% at 78% 55%, rgba(150,130,100,0.2) 0%, transparent 60%),
        radial-gradient(ellipse 40% 25% at 50% 80%, rgba(160,140,110,0.18) 0%, transparent 55%);
    color: var(--text);
    min-height: 100vh;
    background-attachment: fixed;
}

/* ── Header ── */
header {
    border-bottom: 1px solid var(--border);
    padding: clamp(0.85rem, 3vw, 1.75rem) var(--space) clamp(0.75rem, 2vw, 1.5rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    backdrop-filter: blur(10px);
    background: rgba(244,241,236,0.92);
    position: sticky;
    top: 0;
    z-index: 100;
    text-align: center;
    width: 100%;
}

.logo-row { display: flex; align-items: center; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }
.logo-icon { font-size: clamp(1.2rem, 4vw, 1.6rem); }
.logo-text { font-size: clamp(1.3rem, 4vw, 1.5rem); font-weight: 700; letter-spacing: -0.01em; }
.logo-text span { color: var(--accent); }

header .tagline { font-family: 'Caveat', cursive; font-size: clamp(1.1rem, 3.5vw, 1.5rem); font-weight: 600; color: #e03030; margin: 0.15rem 0 0.25rem; letter-spacing: 0.01em; line-height: 1.2; text-align: center; }

.data-badge {
    font-size: clamp(0.6rem, 2vw, 0.7rem);
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent2);
    background: rgba(0,255,136,0.08);
    border: 1px solid rgba(0,255,136,0.2);
    padding: 0.2rem 0.65rem;
    border-radius: 20px;
    white-space: nowrap;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Nav ── */
.nav-links { display: flex; gap: 1.25rem; flex-wrap: wrap; justify-content: center; margin-top: 0.25rem; }
.nav-links a {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.04em;
    transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }

/* ── Hamburger & Mobile nav ── */
.hamburger { display: none; position: fixed; top: 0.85rem; right: 1rem; z-index: 150; background: none; border: none; cursor: pointer; padding: 0.4rem; color: var(--text); line-height: 1; }
.mobile-nav { display: none; position: fixed; inset: 0; background: rgba(244,241,236,0.97); backdrop-filter: blur(12px); z-index: 500; flex-direction: column; align-items: center; justify-content: center; gap: 2.5rem; }
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 1.6rem; font-weight: 700; color: var(--text); text-decoration: none; transition: color 0.15s; letter-spacing: -0.02em; }
.mobile-nav a:hover, .mobile-nav a.active { color: var(--accent); }
.mobile-nav-close { position: absolute; top: 1.25rem; right: 1.5rem; background: none; border: none; font-size: 2rem; cursor: pointer; color: var(--muted); line-height: 1; padding: 0; }

@media (max-width: 640px) { .nav-links { display: none; } .hamburger { display: block; } }

/* ── Main ── */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: clamp(1rem, 4vw, 2.5rem) var(--space);
    width: 100%;
    padding-bottom: 1.5rem;
}

@media (min-width: 768px) {
    main { padding-bottom: 5rem; }
}

/* ── Footer ── */
footer {
    text-align: center;
    padding: clamp(0.75rem, 2vw, 1rem);
    color: var(--muted);
    font-size: clamp(0.65rem, 1.8vw, 0.75rem);
    border-top: 1px solid var(--border);
    background: rgba(244,241,236,0.95);
    backdrop-filter: blur(10px);
}

@media (min-width: 768px) {
    footer {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 50;
        transition: bottom 0.3s ease;
    }
}
footer a { color: var(--accent); text-decoration: none; }

/* ── Share buttons ── */
.share-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-right: 0.25rem;
}
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s, transform 0.1s;
    white-space: nowrap;
}
.share-btn:hover { opacity: 0.85; transform: translateY(-1px); }
.share-btn:active { transform: scale(0.97); }
.share-btn.twitter  { background: #000; color: #fff; }
.share-btn.facebook { background: #1877F2; color: #fff; }
.share-btn.whatsapp { background: #25D366; color: #fff; }
.share-btn.copy     { background: #f0ede8; color: #1a1a1a; border: 1px solid #c8c3bc; }

/* ── Share bar (mid-page) ── */
.share-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    padding: 1rem;
    border-top: 1px solid var(--border);
}

/* ── Header / Footer share rows ── */
.header-share-row,
.footer-share-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}
.footer-share-row { margin-bottom: 0.5rem; }
.header-share-row .share-label,
.footer-share-row .share-label {
    font-size: 0.68rem;
}
.header-share-row .share-btn,
.footer-share-row .share-btn {
    padding: 0.25rem 0.4rem;
    font-size: 0.7rem;
    border-radius: 8px;
    min-width: 28px;
    justify-content: center;
    transform: none;
}
.header-share-row .share-btn:hover,
.footer-share-row .share-btn:hover {
    opacity: 0.85;
    transform: none;
}

/* ── PWA Install prompt ── */
.install-prompt {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(0,119,170,0.08);
    border: 1px solid rgba(0,119,170,0.2);
    border-radius: 8px;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    color: var(--text);
    margin-top: 0.25rem;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 520px;
    text-align: center;
}
.install-prompt-text { flex: 1; min-width: 160px; line-height: 1.4; }
.install-prompt-btn {
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}
.install-prompt-btn:hover { background: #005f8a; }
.install-prompt-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 0.1rem 0.2rem;
    flex-shrink: 0;
    line-height: 1;
}
.install-prompt-close:hover { color: var(--text); }

/* ── PWA Install Banner ── */
.pwa-banner {
    display: none;
    align-items: center;
    gap: 12px;
    background: #0F6E56;
    color: #fff;
    padding: 12px 16px;
    font-size: 0.82rem;
    line-height: 1.4;
    position: relative;
}
.pwa-banner.visible { display: flex; }
.pwa-banner-icon { font-size: 1.4rem; flex-shrink: 0; }
.pwa-banner-text { flex: 1; }
.pwa-banner-text strong { display: block; font-size: 0.88rem; margin-bottom: 2px; }
.pwa-banner-text span { color: rgba(255,255,255,0.75); }
.pwa-banner-btn {
    background: #fff;
    color: #0F6E56;
    border: none;
    border-radius: 6px;
    padding: 6px 14px;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}
.pwa-banner-dismiss {
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 2px 4px;
    flex-shrink: 0;
    line-height: 1;
    font-family: inherit;
}
.pwa-ios-tip {
    display: none;
    background: #085041;
    color: #E1F5EE;
    padding: 10px 16px;
    font-size: 0.8rem;
    text-align: center;
    line-height: 1.5;
    width: 100%;
}
.pwa-ios-tip.visible { display: block; }
.pwa-ios-tip .share-icon {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.85rem;
    margin: 0 2px;
}

/* ── Animations ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }