/* Visual layers and reusable controls; all images come from the local media library. */
:root, [data-theme="dark"] {
    --surface-raised: linear-gradient(145deg, #1b293de8, #101827f5 65%);
    --panel-shadow: 0 16px 40px #0003, inset 0 1px 0 #ffffff08;
    --panel-hover-shadow: 0 24px 55px #0005, 0 0 32px #38bdf80d;
    --ambient-cyan: #0891b21a;
    --ambient-indigo: #6366f11a;
}
[data-theme="light"] {
    --surface-raised: linear-gradient(145deg, #fff, #f5f9fff5);
    --panel-shadow: 0 12px 32px #233f7010, inset 0 1px 0 #fff;
    --panel-hover-shadow: 0 24px 50px #233f7020, 0 0 30px #38bdf80a;
    --ambient-cyan: #38bdf814;
    --ambient-indigo: #818cf816;
}
body {
    background-image: radial-gradient(ellipse 70% 650px at 100% 80px, var(--ambient-cyan), transparent), radial-gradient(ellipse 70% 900px at 0 450px, var(--ambient-indigo), transparent);
    background-repeat: no-repeat;
}
.site-header { box-shadow: 0 8px 30px #00000008; }
.brand-badge { border: 1px solid #7dd3fc80; box-shadow: 0 0 18px #38bdf822; }
.site-header .sub-menu { border-radius: 14px; padding: .5rem !important; background: var(--bg-card); box-shadow: var(--panel-hover-shadow); }
.sub-menu li a { border-radius: 8px; padding: .7rem .85rem; }
.sub-menu li a:hover { padding-left: .85rem; background: var(--bg-card-hover); }
.btn { min-height: 42px; border-radius: 10px; }
.btn-primary { background: linear-gradient(120deg, #0ea5e9, #38bdf8); box-shadow: 0 5px 18px #0ea5e924, inset 0 1px 0 #ffffff50; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px #0ea5e938; }
.btn-secondary { box-shadow: inset 0 1px 0 #ffffff08; }
.pill { backdrop-filter: blur(6px); }
.iso-card, .resource-card, .feature-box, .wallpaper-card, .faq-item, .catalog-controls, .resource-controls, .info-card {
    background: var(--surface-raised) !important;
    box-shadow: var(--panel-shadow);
    border-color: color-mix(in srgb, var(--border) 80%, transparent);
}
.iso-card, .resource-card, .wallpaper-card { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.iso-card:hover, .resource-card:hover, .wallpaper-card:hover { transform: translateY(-5px); box-shadow: var(--panel-hover-shadow); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.iso-card { padding: 0; border-radius: 18px; }
.iso-card > .iso-card-body { padding: 1.35rem 1.35rem 0; flex: 1; }
.iso-card > .iso-card-footer { margin: 0 1.35rem; padding: 1rem 0 1.35rem; }
.iso-card-image { display: block; aspect-ratio: 16/8.5; overflow: hidden; position: relative; background: var(--bg-surface); }
.iso-card-image::after { content: ''; position: absolute; inset: 0; box-shadow: inset 0 -25px 30px -30px #0009; pointer-events: none; }
.iso-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.iso-card:hover .iso-card-image img { transform: scale(1.035); }
.iso-card-specs { background: color-mix(in srgb, var(--bg-main) 65%, transparent); border-color: var(--border-light); }
.iso-card-header .pill { font-size: .7rem; }
.software-icon { padding: .4rem; background: #fff; box-shadow: 0 6px 16px #0002; border-radius: 13px; }
.resource-card-heading { padding-bottom: .75rem; border-bottom: 1px solid var(--border-light); }
.section-heading > .pill, .section-heading-row .pill { letter-spacing: .12em; font-size: .65rem; }
.section-heading h1, .section-heading h2, .section-heading-row h2 { letter-spacing: -.035em; }
.catalog-controls, .resource-controls { position: relative; border-radius: 18px; }
.catalog-controls input, .resource-controls input { border-radius: 11px; box-shadow: inset 0 2px 5px #00000008; transition: border-color .2s, box-shadow .2s; }
.catalog-controls input:focus, .resource-controls input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); outline: none; }

/* The original select remains the form value and the no-JavaScript alternative. */
.choice { position: relative; min-width: 0; }
.choice-native { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; clip-path: inset(50%); overflow: hidden; pointer-events: none; }
.choice-trigger {
    display: flex; align-items: center; justify-content: space-between; gap: .75rem; width: 100%; min-width: 0; min-height: 46px;
    padding: .7rem .85rem; text-align: left; border: 1px solid var(--border); border-radius: 11px;
    background: var(--bg-main); color: var(--text-main); box-shadow: inset 0 2px 5px #00000008; cursor: pointer;
    font-size: .9rem; transition: border-color .2s, box-shadow .2s;
}
.choice-value { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.choice-arrow { flex-shrink: 0; font-size: 1.2rem; color: var(--text-muted); transition: transform .2s; line-height: 1; }
.choice-trigger:hover, .choice-trigger[aria-expanded="true"] { border-color: var(--accent); }
.choice-trigger[aria-expanded="true"] { box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent); }
.choice-trigger[aria-expanded="true"] .choice-arrow { transform: rotate(180deg); color: var(--accent); }
.choice-trigger:disabled { opacity: .5; cursor: not-allowed; }
.choice-panel {
    position: fixed; inset: auto; margin: 0; padding: .4rem; overflow-y: auto; overscroll-behavior: contain;
    border: 1px solid var(--border); border-radius: 14px; background: var(--bg-card); color: var(--text-main);
    box-shadow: 0 20px 60px #0004, 0 3px 12px #0002; font: .9rem/1.5 var(--font); scrollbar-width: thin;
}
.choice-panel:popover-open { animation: choice-appear .16s ease-out; }
.choice-panel::backdrop { background: transparent; }
.choice-option { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .7rem .8rem; min-height: 44px; border-radius: 9px; cursor: pointer; }
.choice-option.is-active { background: var(--bg-card-hover); }
.choice-option[aria-selected="true"] { color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.choice-option[aria-disabled="true"] { opacity: .4; cursor: not-allowed; }
.choice-tick { visibility: hidden; flex-shrink: 0; font-weight: 800; }
.choice-option[aria-selected="true"] .choice-tick { visibility: visible; }
@keyframes choice-appear { from { opacity: 0; translate: 0 -4px; } to { opacity: 1; translate: 0 0; } }

/* A photographic layer in the hero, using the project's own Windows artwork. */
.hero.hero-showcase { padding: 5rem 0; overflow: hidden; }
.hero-showcase > .container { display: grid; grid-template-columns: 1.05fr 1fr; gap: 4rem; align-items: center; text-align: left; }
.site-main .hero-showcase .hero-title { font-size: clamp(2.3rem, 4vw, 3.6rem) !important; letter-spacing: -.045em; margin: 1.25rem 0; line-height: 1.08; }
.hero-showcase .hero-subtitle { margin: 0 0 1.8rem; font-size: 1.05rem; }
.hero-showcase .page-actions { justify-content: flex-start; }
.hero-caption { display: flex; align-items: center; gap: .6rem; color: var(--text-muted); font-size: .78rem; margin-top: 1.5rem; }
.hero-caption::before { content: ''; width: 6px; height: 6px; background: var(--success); border-radius: 50%; box-shadow: 0 0 14px #10b98166; }
.hero-visual { position: relative; min-width: 0; padding: 1.5rem .5rem 2rem; }
.hero-visual::before { content: ''; position: absolute; inset: -25% -20%; background: radial-gradient(ellipse, #0ea5e92b, #6366f112 45%, transparent 65%); pointer-events: none; }
.preview-window { position: relative; border: 1px solid #64748b88; border-radius: 18px; background: #101827; box-shadow: 0 35px 70px #02061766, 0 0 0 7px #ffffff04; overflow: hidden; transform: perspective(1200px) rotateY(-7deg) rotateX(3deg); }
.preview-chrome { display: flex; align-items: center; gap: 6px; padding: .8rem 1rem; color: #b8c5d7; background: #172238; font-size: .65rem; }
.preview-chrome i { display: block; width: 7px; height: 7px; border-radius: 50%; background: #64748b; }
.preview-chrome i:first-child { background: #fb7185; }
.preview-chrome i:nth-child(2) { background: #fbbf24; }
.preview-chrome i:nth-child(3) { background: #34d399; }
.preview-chrome span { margin-left: auto; }
.preview-wallpaper { display: block; width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.preview-taskbar { display: flex; justify-content: center; gap: 10px; padding: .8rem; background: #172238; }
.preview-taskbar span { width: 18px; height: 18px; border-radius: 5px; background: linear-gradient(135deg, #38bdf8, #6366f1); }
.preview-taskbar span:nth-child(2) { background: linear-gradient(135deg, #fbbf24, #fb923c); }
.preview-taskbar span:nth-child(3) { background: linear-gradient(135deg, #34d399, #0891b2); }
.preview-taskbar span:nth-child(4) { background: linear-gradient(135deg, #c4b5fd, #6366f1); }
.visual-note { position: absolute; display: flex; flex-direction: column; gap: .2rem; padding: .9rem 1.2rem; background: color-mix(in srgb, var(--bg-card) 94%, transparent); backdrop-filter: blur(12px); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--panel-shadow); }
.visual-note strong { font-size: .85rem; color: var(--text-main); }
.visual-note span { font-size: .7rem; color: var(--text-muted); }
.visual-note-first { left: -1rem; bottom: .5rem; }
.visual-note-last { right: -1rem; top: -.2rem; }
.discovery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; padding-block: 3rem 1rem; }
.discovery-card { position: relative; display: grid; grid-template-columns: 1fr 1fr; min-height: 220px; border: 1px solid var(--border); border-radius: 20px; overflow: hidden; background: var(--surface-raised); box-shadow: var(--panel-shadow); color: var(--text-main); transition: transform .25s, box-shadow .25s; }
.discovery-card:hover { color: var(--text-main); transform: translateY(-4px); box-shadow: var(--panel-hover-shadow); }
.discovery-copy { padding: 1.75rem; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: .65rem; }
.discovery-copy small { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .6rem; }
.discovery-copy h2 { font-size: 1.4rem; letter-spacing: -.035em; }
.discovery-copy p { color: var(--text-muted); font-size: .8rem; }
.discovery-copy > span { color: var(--accent); font-size: .8rem; margin-top: .25rem; }
.discovery-card > img { width: 100%; height: 100%; object-fit: cover; }
.discovery-apps { display: grid; grid-template-columns: repeat(2, 58px); gap: 14px; place-content: center; background: radial-gradient(ellipse at center, var(--ambient-cyan), transparent 75%); transform: rotate(-8deg); }
.discovery-apps img { width: 58px; height: 58px; object-fit: contain; padding: .6rem; background: #fff; border: 1px solid #e2e8f0; border-radius: 15px; box-shadow: 0 8px 20px #0002; }
.feature-band { background: color-mix(in srgb, var(--bg-card) 60%, transparent); }
.site-footer { background-image: radial-gradient(ellipse at 50% 100%, var(--ambient-indigo), transparent 70%); }
@media (max-width: 1000px) {
    .hero-showcase > .container { gap: 2rem; }
    .visual-note-first { left: 0; }
    .visual-note-last { right: 0; }
    .discovery-card { grid-template-columns: 1.2fr 1fr; }
    .discovery-copy { padding: 1.25rem; }
}
@media (max-width: 760px) {
    .hero.hero-showcase { padding: 3rem 0 1.75rem; }
    .hero-showcase > .container { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
    .hero-visual { width: min(100%, 520px); margin: 0 auto; }
    .hero-showcase .hero-title { max-width: 600px; }
    .preview-window { transform: perspective(1200px) rotateY(-3deg); }
    .discovery-grid { grid-template-columns: minmax(0, 1fr); }
    .hero-caption { flex-wrap: wrap; }
}
@media (max-width: 600px) {
    .choice-trigger { font-size: 16px; }
    .iso-card > .iso-card-body { padding: 1.15rem 1.15rem 0; }
    .iso-card > .iso-card-footer { margin: 0 1.15rem; }
    .hero-showcase .page-actions .btn { flex: 1 1 140px; }
    .visual-note { padding: .7rem .85rem; }
    .visual-note strong { font-size: .75rem; }
    .visual-note-last { top: -.25rem; }
    .discovery-copy h2 { font-size: 1.2rem; }
    .discovery-card { min-height: 210px; }
    .discovery-apps { grid-template-columns: repeat(2, 42px); gap: 10px; }
    .discovery-apps img { width: 42px; height: 42px; padding: .4rem; border-radius: 11px; }
}
@media (prefers-reduced-motion: reduce) {
    .choice-panel:popover-open { animation: none; }
    .preview-window { transform: none; }
    .iso-card:hover, .resource-card:hover, .wallpaper-card:hover, .btn-primary:hover, .discovery-card:hover { transform: none; }
}