/* ══════════════════════════════════════════════════
   DESIGN TOKENS
══════════════════════════════════════════════════ */
:root {
    --font: 'Nunito', 'Segoe UI', system-ui, sans-serif;

    --bg:         #F2EFE9;
    --bg-card:    #FFFFFF;
    --nav-bg:     rgba(10, 36, 36, 0.94);
    --footer-bg:  #0A2424;
    --max-w:      1280px;
    --pad:        clamp(16px, 4vw, 48px);

    --text:       #1C1C2E;
    --muted:      #6B7280;

    --brand:      #A44A3F;
    --brand-dark: #7E352B;

    /* One gradient per game */
    --grad-math-ladder:  linear-gradient(150deg, #FF7043 0%, #BF360C 100%);
    --grad-ninja:        linear-gradient(135deg, #E53935 0%, #7B1FA2 100%);
    --grad-quickmath:    linear-gradient(150deg, #FF8F00 0%, #E53935 100%);
    --grad-measure:      linear-gradient(140deg, #A44A3F 0%, #6D1F1F 100%);
    --grad-word:         linear-gradient(145deg, #AB47BC 0%, #4527A0 100%);
    --grad-world:        linear-gradient(145deg, #1E88E5 0%, #0D47A1 100%);
    --grad-earth:        linear-gradient(140deg, #00ACC1 0%, #006064 100%);
    --grad-dino:         linear-gradient(145deg, #43A047 0%, #1B5E20 100%);
    --grad-solar:        linear-gradient(145deg, #0B0E2D 0%, #1a1060 55%, #0D2060 100%);

    /* Category dot colors (for section headers) */
    --c-math:    #BF360C;
    --c-geo:     #0277BD;
    --c-words:   #6A1B9A;
    --c-science: #2E7D32;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ══════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 200;
    height: 62px;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.navbar-inner {
    max-width: var(--max-w);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--pad);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }

.brand-mark {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, #FF7043, var(--brand-dark));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
}
.brand-mark i { color: #fff; font-size: 20px; }

.brand-name {
    font-size: 21px; font-weight: 900; color: #fff; letter-spacing: -0.03em;
}

.nav-count {
    font-size: 13px; font-weight: 700;
    color: rgba(255,255,255,0.45);
    background: rgba(255,255,255,0.08);
    padding: 4px 12px; border-radius: 20px;
}

/* ══════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════ */
.hero {
    background: linear-gradient(135deg, #A8DADA 0%, #3D9E9E 100%);
    padding: clamp(28px, 5vw, 52px) var(--pad);
    text-align: center;
}

.hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.8rem);
    font-weight: 900; color: #fff; letter-spacing: -0.03em; margin-bottom: 8px;
}

.hero p {
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    color: rgba(255,255,255,0.85); font-weight: 600; margin-bottom: 22px;
}

/* ══════════════════════════════════════════════════
   FILTER BAR
══════════════════════════════════════════════════ */
.filter-bar {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.pill {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 18px; border-radius: 24px;
    font-size: 14px; font-weight: 800; font-family: var(--font);
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.85);
    cursor: pointer; transition: all 0.18s; white-space: nowrap;
}

.pill:hover { background: rgba(255,255,255,0.25); color: #fff; }

.pill.active {
    background: #fff; color: var(--text); border-color: #fff;
}

.pill i { font-size: 15px; }

/* Active pill icon color per category */
.pill[data-cat="math"].active    { color: var(--c-math); }
.pill[data-cat="geo"].active     { color: var(--c-geo);  }
.pill[data-cat="words"].active   { color: var(--c-words);}
.pill[data-cat="science"].active { color: var(--c-science); }

/* ══════════════════════════════════════════════════
   PAGE CONTENT
══════════════════════════════════════════════════ */
.page {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 36px var(--pad) 72px;
}

/* ── Category section ── */
.cat-section { margin-bottom: 48px; }
.cat-section.hidden { display: none; }

.sec-header {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.sec-title {
    display: flex; align-items: center; gap: 10px;
}

.sec-bar {
    width: 4px; height: 22px; border-radius: 4px; flex-shrink: 0;
}
.sec-bar.math    { background: var(--c-math); }
.sec-bar.geo     { background: var(--c-geo);  }
.sec-bar.words   { background: var(--c-words);}
.sec-bar.science { background: var(--c-science); }

.sec-title h2 {
    font-size: clamp(1.05rem, 2.5vw, 1.3rem);
    font-weight: 900; letter-spacing: -0.02em;
}

.sec-count {
    font-size: 12px; font-weight: 800; color: var(--muted);
    background: rgba(0,0,0,0.06);
    padding: 2px 10px; border-radius: 12px;
}

/* ── Horizontal scroll row ── */
.row-wrap { position: relative; }

/* Fade-right affordance for horizontal scroll */
.row-wrap::after {
    content: '';
    position: absolute; right: 0; top: 0; bottom: 12px; width: 80px;
    background: linear-gradient(to right, transparent, var(--bg));
    pointer-events: none; z-index: 1;
}

.cards-row {
    display: flex; gap: 18px;
    overflow-x: auto; padding-bottom: 14px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.cards-row::-webkit-scrollbar { display: none; }

/* ══════════════════════════════════════════════════
   GAME CARD — full-bleed: gradient covers entire card,
   info overlays at the bottom (Steam / Spotify style)
══════════════════════════════════════════════════ */
.game-card {
    flex: 0 0 220px;
    height: 278px;
    scroll-snap-align: start;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(0,0,0,0.08);
    text-decoration: none;
    color: #fff;
    transition: transform 0.22s;
}

.game-card:hover {
    transform: translateY(-6px) scale(1.015);
}

/* ── Thumbnail — fills the entire card ── */
.thumb {
    position: absolute;
    inset: 0;
    display: flex; align-items: center; justify-content: center;
    padding-bottom: 80px;
    border-radius: 20px;
}

/* Per-game gradients */
.thumb.math-ladder { background: var(--grad-math-ladder); }
.thumb.ninja       { background: var(--grad-ninja); }
.thumb.quickmath   { background: var(--grad-quickmath); }
.thumb.measure     { background: var(--grad-measure); }
.thumb.word        { background: var(--grad-word); }
.thumb.world       { background: var(--grad-world); }
.thumb.earth       { background: var(--grad-earth); }
.thumb.dino        { background: var(--grad-dino); }
.thumb.solar       { background: var(--grad-solar); }

/* ── Unique background patterns per game ── */

/* Math Ladder — diagonal stripes (progress/climbing) */
.thumb.math-ladder::before {
    content: '';
    position: absolute; inset: 0;
    background: repeating-linear-gradient(
        -55deg,
        rgba(255,255,255,0.07) 0px, rgba(255,255,255,0.07) 2px,
        transparent 2px, transparent 18px
    );
}

/* Number Ninja — concentric rings (target) */
.thumb.ninja::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(circle at 50% 50%, transparent 28px, rgba(255,255,255,0.06) 29px, rgba(255,255,255,0.06) 30px, transparent 31px),
        radial-gradient(circle at 50% 50%, transparent 48px, rgba(255,255,255,0.06) 49px, rgba(255,255,255,0.06) 50px, transparent 51px),
        radial-gradient(circle at 50% 50%, transparent 68px, rgba(255,255,255,0.06) 69px, rgba(255,255,255,0.06) 70px, transparent 71px);
}

/* Quick Math — radial burst lines */
.thumb.quickmath::before {
    content: '';
    position: absolute; inset: 0;
    background: repeating-conic-gradient(
        rgba(255,255,255,0.07) 0deg 8deg,
        transparent 8deg 16deg
    );
}

/* Measure Master — ruler tick marks */
.thumb.measure::before {
    content: '';
    position: absolute; inset: 0;
    background: repeating-linear-gradient(
        90deg,
        rgba(255,255,255,0.1) 0px, rgba(255,255,255,0.1) 1px,
        transparent 1px, transparent 12px
    ),
    repeating-linear-gradient(
        90deg,
        rgba(255,255,255,0.18) 0px, rgba(255,255,255,0.18) 1px,
        transparent 1px, transparent 48px
    );
}

/* Word Explorer — regular dot grid */
.thumb.word::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 1.5px, transparent 1.5px);
    background-size: 20px 20px;
}

/* World Explorer — latitude/longitude grid */
.thumb.world::before {
    content: '';
    position: absolute; inset: 0;
    background:
        repeating-linear-gradient(0deg,   transparent, transparent 29px, rgba(255,255,255,0.08) 29px, rgba(255,255,255,0.08) 30px),
        repeating-linear-gradient(90deg,  transparent, transparent 29px, rgba(255,255,255,0.08) 29px, rgba(255,255,255,0.08) 30px);
}

/* Earth Explorer — wavy diagonal lines */
.thumb.earth::before {
    content: '';
    position: absolute; inset: 0;
    background: repeating-linear-gradient(
        30deg,
        rgba(255,255,255,0.06) 0px, rgba(255,255,255,0.06) 2px,
        transparent 2px, transparent 14px
    );
}

/* Dino Hunter — scattered larger dots (jungle spots) */
.thumb.dino::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.14) 2px, transparent 2px);
    background-size: 28px 28px;
    background-position: 0 0, 14px 14px;
}

/* Planet Quest — twinkling star field */
.thumb.solar::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(circle, rgba(255,255,255,0.9) 1px, transparent 1px),
        radial-gradient(circle, rgba(255,255,255,0.6) 1px, transparent 1px),
        radial-gradient(circle, rgba(255,255,180,0.8) 1.5px, transparent 1.5px);
    background-size: 40px 40px, 27px 27px, 63px 63px;
    background-position: 5px 8px, 18px 22px, 32px 12px;
}

/* Main icon */
.thumb i {
    position: relative;
    font-size: 62px;
    color: rgba(255,255,255,0.92);
    filter: drop-shadow(0 6px 18px rgba(0,0,0,0.32));
}

/* NEW badge */
.badge-new {
    position: absolute; top: 12px; left: 12px;
    background: rgba(255,255,255,0.95); color: #D97706;
    font-size: 10px; font-weight: 900; letter-spacing: 0.06em;
    padding: 3px 10px; border-radius: 10px; text-transform: uppercase;
    z-index: 2;
}

/* ── Bottom overlay: dark scrim + game info ── */
.card-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(
        to top,
        rgba(0,0,0,0.82) 0%,
        rgba(0,0,0,0.55) 55%,
        transparent 100%
    );
    padding: 20px 16px 16px;
    border-radius: 0 0 20px 20px;
}

.card-title {
    font-size: 15px; font-weight: 900; color: #fff;
    margin-bottom: 3px; letter-spacing: -0.02em;
}

.card-desc {
    font-size: 11.5px; font-weight: 600;
    color: rgba(255,255,255,0.72);
    line-height: 1.4; margin-bottom: 10px;
}

.card-play {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 6px 14px; border-radius: 16px;
    font-size: 12px; font-weight: 800; font-family: var(--font);
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
}
.game-card:hover .card-play { background: rgba(255,255,255,0.32); }
.card-play i { font-size: 12px; }

/* ══════════════════════════════════════════════════
   EMPTY STATE
══════════════════════════════════════════════════ */
.empty {
    text-align: center; padding: 60px 20px;
    color: var(--muted); display: none;
}
.empty i { font-size: 52px; margin-bottom: 14px; display: block; opacity: 0.3; }
.empty p { font-size: 15px; font-weight: 700; }

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
footer { background: var(--footer-bg); }

.footer-inner {
    max-width: var(--max-w); margin: 0 auto;
    padding: 48px var(--pad) 36px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-brand-row {
    display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
}
.footer-brand-row .brand-mark { width: 30px; height: 30px; border-radius: 8px; }
.footer-brand-row .brand-mark i { font-size: 16px; }
.footer-brand-row span { font-size: 18px; font-weight: 900; color: #fff; letter-spacing: -0.02em; }

.footer-brand p {
    color: rgba(255,255,255,0.45); font-size: 13px; font-weight: 600; line-height: 1.6; max-width: 260px;
}

.footer-col h3 {
    font-size: 10px; font-weight: 800; letter-spacing: 0.1em;
    text-transform: uppercase; color: rgba(255,255,255,0.35); margin-bottom: 14px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
    color: rgba(255,255,255,0.6); text-decoration: none;
    font-size: 13px; font-weight: 600; transition: color 0.15s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
    max-width: var(--max-w); margin: 0 auto;
    padding: 16px var(--pad);
    border-top: 1px solid rgba(255,255,255,0.07);
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
}
.footer-bottom p { color: rgba(255,255,255,0.3); font-size: 12px; font-weight: 600; }

.footer-contact-btn {
    padding: 6px 16px; border-radius: 18px;
    font-size: 12px; font-weight: 700; font-family: var(--font);
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    color: rgba(255,255,255,0.85);
    cursor: pointer;
    transition: all 0.18s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-contact-btn:hover {
    background: rgba(255,255,255,0.25);
    color: #fff;
    border-color: rgba(255,255,255,0.35);
}
.footer-contact-btn i {
    font-size: 14px;
}

.cat-swatches { display: flex; gap: 6px; }
.swatch { width: 10px; height: 10px; border-radius: 50%; opacity: 0.55; }

/* ══════════════════════════════════════════════════
   FEEDBACK MODAL
══════════════════════════════════════════════════ */
.feedback-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0,0,0,0.65);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.feedback-modal-content {
    background: var(--bg-card);
    border-radius: 16px;
    width: 90%;
    max-width: 420px;
    padding: 32px;
    box-shadow: 0 12px 48px rgba(0,0,0,0.15);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.feedback-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.feedback-modal-header h2 {
    font-size: 20px;
    font-weight: 900;
    color: var(--text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.feedback-modal-header h2 i {
    font-size: 22px;
    color: var(--brand);
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--muted);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s;
}
.close-btn:hover { color: var(--text); }

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feedback-form label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.feedback-form input,
.feedback-form textarea {
    font-family: var(--font);
    padding: 10px 12px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.15s;
}

.feedback-form input:focus,
.feedback-form textarea:focus {
    outline: none;
    border-color: var(--brand);
}

.feedback-form textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    padding: 12px 20px;
    background: var(--brand);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    font-family: var(--font);
    cursor: pointer;
    transition: background 0.18s;
    margin-top: 8px;
}

.submit-btn:hover {
    background: var(--brand-dark);
}

.submit-btn:active {
    transform: scale(0.98);
}

/* ══════════════════════════════════════════════════
   RESPONSIVE CARD SIZE
══════════════════════════════════════════════════ */
@media (max-width: 600px) {
    .game-card { flex: 0 0 188px; height: 240px; }
    .thumb i { font-size: 50px; }
    .thumb { padding-bottom: 70px; }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE LAYOUT
══════════════════════════════════════════════════ */
@media (max-width: 900px) {
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    .filter-bar { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding: 0 4px; }
}