/* ============================================================================
   OakTree Games — Inner Page Styles
   Catalog filters, tier toggles, tabbed panels, donation tiers, about timeline
   ============================================================================ */

/* ---------- PAGE HEADER ---------- */
.page-header {
    padding: var(--sp-8) 0 var(--sp-5);
    border-bottom: 1px solid var(--line-faint);
    background:
        linear-gradient(180deg, transparent, rgba(0,0,0,0.4));
}
.page-header h1 {
    font-size: clamp(36px, 6vw, 64px);
    margin-bottom: var(--sp-3);
}
.page-header p { max-width: 64ch; }

/* breadcrumb */
.breadcrumb {
    display: flex; gap: 8px; align-items: center;
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-mute);
    margin-bottom: var(--sp-3);
}
.breadcrumb a { color: var(--text-sec); }
.breadcrumb a:hover { color: var(--accent-oak); }
.breadcrumb span.sep { color: var(--text-mute); }

/* ---------- TABS ---------- */
.tab-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    border-bottom: 1px solid var(--line-soft);
    margin-bottom: var(--sp-5);
}
.tab {
    padding: 12px 18px;
    font-family: var(--font-pixel);
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-sec);
    background: transparent;
    border: 1px solid transparent;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}
.tab:hover {
    color: var(--text-pri);
    background: rgba(124,192,134,0.06);
}
.tab.active {
    color: var(--accent-oak);
    border-bottom-color: var(--accent-oak);
    background: rgba(124,192,134,0.06);
}
.tab-panel {
    display: none;
    animation: panel-in 380ms cubic-bezier(.21,.92,.32,1);
}
.tab-panel.active { display: block; }
@keyframes panel-in {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- FILTER BAR (items / buildings / biomes) ---------- */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3);
    align-items: center;
    padding: var(--sp-4);
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    margin-bottom: var(--sp-5);
}
.filter-bar input,
.filter-bar select {
    background: var(--bg-deep);
    border: 1px solid var(--line-soft);
    color: var(--text-pri);
    padding: 10px 12px;
    font-family: var(--font-body);
    font-size: 14px;
    min-width: 200px;
    transition: border-color 180ms ease, background 180ms ease;
}
.filter-bar input:focus,
.filter-bar select:focus {
    outline: none;
    border-color: var(--accent-oak);
    background: var(--bg-panel-hi);
}
.filter-bar label {
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-mute);
}

.filter-chips {
    display: flex; flex-wrap: wrap; gap: 6px;
}
.filter-chip {
    padding: 6px 12px;
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-sec);
    background: var(--bg-deep);
    border: 1px solid var(--line-faint);
    cursor: pointer;
    transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}
.filter-chip:hover {
    color: var(--text-pri);
    border-color: var(--line-soft);
}
.filter-chip.active {
    color: var(--bg-void);
    background: var(--accent-oak);
    border-color: var(--accent-oak);
}

/* ---------- CARD GRID (items/buildings) ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--sp-4);
}
.card-grid-dense {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.entity-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    padding: var(--sp-4);
    /* snappier hover: transform 120ms so cards lift the moment the
       cursor lands. Color/shadow stay 200ms for a softer glow tail. */
    transition: transform 120ms cubic-bezier(.16, 1, .32, 1),
                border-color 200ms ease,
                box-shadow 200ms ease;
    cursor: default;
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
    position: relative;
}
.entity-card:hover {
    transform: translateY(-3px);
    border-color: var(--tier-color, var(--accent-oak));
    box-shadow: var(--shadow-pixel-md);
}
.entity-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-3);
}
.entity-card h4 {
    font-family: var(--font-pixel);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--text-pri);
    margin: 0;
    line-height: 1.4;
}
.entity-card .meta-row {
    display: flex; flex-wrap: wrap; gap: 6px;
    font-size: 12px;
    color: var(--text-mute);
}
.entity-card .meta-row span {
    padding: 2px 8px;
    background: var(--bg-deep);
    border: 1px solid var(--line-faint);
    font-size: 11px;
}
.entity-card .desc {
    font-size: 13px;
    color: var(--text-sec);
    line-height: 1.5;
}
.entity-card .stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
    padding-top: var(--sp-3);
    border-top: 1px dashed var(--line-faint);
    font-size: 12px;
    color: var(--text-sec);
}
.entity-card .stats dt {
    color: var(--text-mute);
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.entity-card .stats dd {
    color: var(--text-pri);
    font-family: var(--font-mono);
    font-size: 13px;
    text-align: right;
}

.entity-icon {
    width: 56px;
    height: 56px;
    flex: 0 0 56px;
    background: var(--bg-deep);
    border: 1px solid var(--line-faint);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-pixel);
    font-size: 11px;
    color: var(--tier-color, var(--accent-oak));
    position: relative;
}
.entity-icon::after {
    content: "";
    position: absolute; inset: 0;
    background: var(--tier-color, var(--accent-oak));
    opacity: 0.06;
}

/* ---------- TIER TOGGLES (special row) ---------- */
.tier-toggles {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-bottom: var(--sp-4);
}
.tier-toggle {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--line-faint);
    background: var(--bg-panel);
    cursor: pointer;
    /* explicit properties instead of `all` so transitions don't retrigger
       every time an unrelated property changes (e.g. text-shadow on focus) */
    transition: background 140ms ease,
                border-color 140ms ease,
                color 140ms ease,
                transform 120ms cubic-bezier(.16, 1, .32, 1);
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-sec);
}
.tier-toggle .tier-dot {
    width: 8px; height: 8px;
    background: var(--tier-color);
}
.tier-toggle.active {
    background: var(--bg-panel-hi);
    border-color: var(--tier-color);
    color: var(--text-pri);
    box-shadow: 0 0 16px rgba(255,255,255,0.05);
}
.tier-toggle:hover { color: var(--text-pri); }

/* ---------- BIOME GRID (detailed) ---------- */
.biome-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sp-5);
}
.biome-full {
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    overflow: hidden;
    transition: transform 240ms ease, border-color 240ms ease;
}
.biome-full:hover { transform: translateY(-4px); border-color: var(--biome-color, var(--accent-oak)); }
.biome-full .hero-band {
    height: 130px;
    position: relative;
    overflow: hidden;
    background: var(--biome-bg, linear-gradient(180deg, #2e4a2c, #1a2d18));
}
.biome-full .hero-band::after {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 30% 30%, rgba(255,255,255,0.20), transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(0,0,0,0.40), transparent 60%);
    mix-blend-mode: overlay;
}
.biome-full .hero-band .biome-tag {
    position: absolute;
    bottom: 10px; left: 10px;
    background: rgba(0,0,0,0.55);
    padding: 4px 8px;
    border: 1px solid rgba(255,255,255,0.18);
    font-family: var(--font-pixel);
    font-size: 8px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
}
.biome-full-body {
    padding: var(--sp-4);
}
.biome-full-body h3 {
    font-family: var(--font-pixel);
    font-size: 14px;
    letter-spacing: 0.05em;
    margin-bottom: var(--sp-3);
}
.biome-full-body p { font-size: 13px; line-height: 1.6; }
.biome-stat-row {
    display: flex; flex-wrap: wrap;
    gap: 8px;
    margin-top: var(--sp-3);
    padding-top: var(--sp-3);
    border-top: 1px dashed var(--line-faint);
}
.biome-stat {
    flex: 1 1 calc(50% - 4px);
    font-size: 11px;
    color: var(--text-mute);
    font-family: var(--font-pixel);
    letter-spacing: 0.06em;
}
.biome-stat strong {
    display: block;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-pri);
    margin-top: 2px;
}

/* ---------- DONATION TIERS ---------- */
.donate-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-5);
}
@media (max-width: 920px) { .donate-grid { grid-template-columns: 1fr; } }

.donate-tier {
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    padding: var(--sp-6) var(--sp-5);
    text-align: center;
    position: relative;
    transition: transform 220ms ease, border-color 220ms ease;
}
.donate-tier::before {
    content: "";
    position: absolute; inset: 0 0 auto 0;
    height: 4px;
    background: var(--tier-color, var(--accent-oak));
}
.donate-tier:hover {
    transform: translateY(-6px);
    border-color: var(--tier-color, var(--accent-oak));
    box-shadow: var(--shadow-pixel-lg);
}
.donate-tier.featured {
    border-color: var(--accent-oak);
    background: var(--bg-panel-hi);
    transform: scale(1.02);
}
.donate-tier.featured::after {
    content: "MOST POPULAR";
    position: absolute;
    top: -12px; left: 50%;
    transform: translateX(-50%);
    background: var(--accent-cosmic);
    color: var(--bg-void);
    padding: 4px 12px;
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.1em;
}
.donate-tier .tier-name {
    font-family: var(--font-pixel);
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--tier-color, var(--accent-oak));
    margin-bottom: var(--sp-3);
    text-transform: uppercase;
}
.donate-tier .tier-price {
    font-family: var(--font-display);
    font-size: 56px;
    line-height: 1;
    color: var(--text-pri);
    margin-bottom: var(--sp-5);
}
.donate-tier .tier-price small {
    font-size: 14px;
    color: var(--text-mute);
}
.donate-tier ul {
    list-style: none;
    text-align: left;
    margin-bottom: var(--sp-5);
}
.donate-tier li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--line-faint);
    color: var(--text-sec);
    font-size: 13px;
    display: flex; gap: 10px; align-items: flex-start;
}
.donate-tier li::before {
    content: "▸";
    color: var(--tier-color, var(--accent-oak));
    font-size: 12px;
}

/* ---------- FORMS ---------- */
.form {
    display: flex; flex-direction: column;
    gap: var(--sp-3);
    max-width: 460px;
}
.form label {
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-mute);
}
.form input,
.form textarea,
.form select {
    background: var(--bg-deep);
    border: 1px solid var(--line-soft);
    color: var(--text-pri);
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 15px;
    transition: border-color 180ms ease, background 180ms ease;
}
.form input:focus, .form textarea:focus, .form select:focus {
    outline: none;
    border-color: var(--accent-oak);
    background: var(--bg-panel);
}
.form textarea { min-height: 120px; resize: vertical; }

/* ---------- TIMELINE (about page) ---------- */
.timeline {
    position: relative;
    padding-left: var(--sp-7);
    margin-top: var(--sp-5);
}
.timeline::before {
    content: "";
    position: absolute;
    left: 12px; top: 6px; bottom: 6px;
    width: 2px;
    background: var(--line-soft);
}
.timeline-item {
    position: relative;
    padding: var(--sp-4) 0;
}
.timeline-item::before {
    content: "";
    position: absolute;
    left: -42px; top: 22px;
    width: 12px; height: 12px;
    background: var(--accent-oak);
    border: 2px solid var(--bg-void);
    box-shadow: 0 0 12px var(--accent-oak);
}
.timeline-date {
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.1em;
    color: var(--accent-oak);
    margin-bottom: 4px;
}
.timeline-item h3 {
    font-family: var(--font-pixel);
    font-size: 14px;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}
.timeline-item p { font-size: 14px; line-height: 1.6; }

/* ---------- INFO TWO-COL ---------- */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-7);
    align-items: start;
}
@media (max-width: 880px) {
    .split { grid-template-columns: 1fr; gap: var(--sp-5); }
}

/* ---------- STAT BLOCK ---------- */
.stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--sp-4);
    margin-top: var(--sp-5);
}
.stat-block {
    padding: var(--sp-4);
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    text-align: center;
}
.stat-block strong {
    display: block;
    font-family: var(--font-display);
    font-size: 36px;
    color: var(--accent-oak);
    line-height: 1;
    margin-bottom: 6px;
}
.stat-block span {
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-mute);
}

/* ---------- RECIPE / FLOW DIAGRAM ---------- */
.flow-row {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-wrap: wrap;
    padding: var(--sp-3) 0;
}
.flow-pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px;
    background: var(--bg-deep);
    border: 1px solid var(--line-soft);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-pri);
}
.flow-pill .qty { color: var(--accent-cosmic); font-family: var(--font-pixel); font-size: 10px; }
.flow-arrow { color: var(--accent-oak); font-size: 18px; }

/* ---------- MODAL ---------- */
.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--sp-5);
    backdrop-filter: blur(4px);
}
.modal-backdrop.is-open { display: flex; animation: fade-in 200ms ease; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.modal {
    width: 100%;
    max-width: 640px;
    max-height: 86vh;
    overflow-y: auto;
    background: var(--bg-panel);
    border: 1px solid var(--line-soft);
    padding: var(--sp-5);
    position: relative;
    animation: pop-in 280ms cubic-bezier(.21,.92,.32,1);
}
@keyframes pop-in { from { transform: scale(0.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.modal-close {
    position: absolute; top: 12px; right: 12px;
    width: 32px; height: 32px;
    background: var(--bg-deep);
    border: 1px solid var(--line-soft);
    color: var(--text-pri);
    font-family: var(--font-pixel);
    font-size: 12px;
    cursor: pointer;
}
.modal-close:hover { background: var(--accent-oak); color: var(--bg-void); }

/* ---------- ADMINISTRATIVE NOTE BOX ---------- */
.note {
    padding: var(--sp-4);
    background: rgba(102,224,198,0.06);
    border-left: 3px solid var(--accent-aurora);
    color: var(--text-sec);
    font-size: 14px;
    line-height: 1.6;
}
.note strong { color: var(--text-pri); }

.warning {
    border-left-color: var(--accent-amber);
    background: rgba(255,168,69,0.06);
}

/* ---------- FAQ ACCORDION ---------- */
/* Native <details>/<summary>. Designed to match the .panel/.post visual
   language. Schema mirror lives next to the markup so visible + SERP
   stay in lockstep. */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}
.faq-item {
    background: var(--bg-panel);
    border: 1px solid var(--line-faint);
    border-left: 3px solid var(--accent-oak);
    padding: var(--sp-3) var(--sp-4);
    transition: border-color 200ms ease,
                transform 120ms cubic-bezier(.16, 1, .32, 1);
}
.faq-item[open] {
    border-color: var(--accent-aurora);
    border-left-color: var(--accent-aurora);
}
.faq-item summary {
    cursor: pointer;
    list-style: none;
    color: var(--text-pri);
    font-size: 15px;
    line-height: 1.4;
    padding: 4px 0;
    position: relative;
    padding-right: 28px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-pixel);
    font-size: 14px;
    color: var(--accent-oak);
    transition: transform 220ms ease;
}
.faq-item[open] summary::after {
    content: "−";
    color: var(--accent-aurora);
}
.faq-item summary strong {
    color: var(--text-pri);
    font-weight: 600;
}
.faq-item p {
    margin-top: var(--sp-3);
    color: var(--text-sec);
    font-size: 14px;
    line-height: 1.7;
}
.faq-item p a {
    color: var(--accent-oak);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.faq-item p a:hover { color: var(--accent-aurora); }