:root {
    --bg: #0f172a;
    --panel: #ffffff;
    --panel-soft: #f8fafc;
    --text: #1f2937;
    --muted: #64748b;
    --line: #e2e8f0;
    --accent: #2563eb;
    --accent-2: #7c3aed;
    --success: #166534;
    --error: #991b1b;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 50%, #ffffff 100%);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.site-header {
    position: sticky; top: 0; z-index: 10;
    background: rgba(255,255,255,.93); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 800; color: var(--text); font-size: 1.1rem; }
.brand:hover { text-decoration: none; }
.brand-mark {
    display: inline-grid; place-items: center; width: 2.2rem; height: 2.2rem; border-radius: .75rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white;
}
.nav-links { display: flex; align-items: center; gap: .85rem; flex-wrap: wrap; }
.nav-badge { background: #e0e7ff; color: #3730a3; padding: .45rem .75rem; border-radius: 999px; font-weight: 700; }
.hero { padding: 4rem 0 2.5rem; }
.hero-grid {
    display: grid; grid-template-columns: 1.2fr .8fr; gap: 2rem; align-items: center;
}
.hero-card, .card {
    background: var(--panel); border: 1px solid var(--line); border-radius: 1.35rem; padding: 1.35rem;
    box-shadow: 0 15px 35px rgba(15, 23, 42, .08);
}
.hero h1 { font-size: clamp(2rem, 4vw, 3.8rem); line-height: 1.02; margin: 0 0 1rem; }
.hero p { font-size: 1.04rem; color: var(--muted); }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    border: 0; border-radius: .95rem; padding: .85rem 1rem; font-weight: 700; cursor: pointer;
    background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; text-decoration: none;
}
.btn:hover { text-decoration: none; filter: brightness(1.03); }
.btn-ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn-secondary { background: #eef2ff; color: #3730a3; }
.grid-3, .grid-2 { display: grid; gap: 1rem; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.section { padding: 1rem 0 2.5rem; }
.section h2 { font-size: 1.8rem; margin-bottom: .5rem; }
.section p.lead { color: var(--muted); max-width: 68ch; }
.kpi { font-size: 1.7rem; font-weight: 800; }
.list { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.alert { margin-top: 1rem; padding: .95rem 1rem; border-radius: 1rem; border: 1px solid var(--line); }
.alert-success { background: #ecfdf5; color: var(--success); border-color: #bbf7d0; }
.alert-error { background: #fef2f2; color: var(--error); border-color: #fecaca; }
.form-card { max-width: 740px; margin: 2rem auto; }
label { display: block; font-weight: 700; margin-bottom: .35rem; }
input[type="text"], input[type="email"], input[type="password"], select, textarea, input[type="file"] {
    width: 100%; border: 1px solid #cbd5e1; border-radius: .9rem; padding: .85rem .9rem; font: inherit; background: #fff;
}
.help { color: var(--muted); font-size: .92rem; margin-top: .35rem; }
.row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .8rem; }
.checkbox {
    display: flex; align-items: flex-start; gap: .65rem; border: 1px solid var(--line); background: var(--panel-soft);
    border-radius: 1rem; padding: .85rem 1rem;
}
.checkbox input { width: auto; margin-top: .25rem; }
.stack { display: grid; gap: 1rem; }
.mt { margin-top: 1rem; }
.mb { margin-bottom: 1rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: white; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: .8rem .65rem; vertical-align: top; }
th { background: #f8fafc; }
.color-dot { width: 1rem; height: 1rem; border-radius: 999px; display: inline-block; border: 1px solid rgba(0,0,0,.15); margin-right: .45rem; vertical-align: middle; }
.mosaic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.preview-img { width: 100%; border-radius: 1rem; border: 1px solid var(--line); background: white; }
.meta { display: flex; flex-wrap: wrap; gap: .65rem; }
.meta span { background: #f1f5f9; color: #334155; padding: .45rem .7rem; border-radius: 999px; font-weight: 700; }
.project-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.project-card img { width: 100%; border-radius: 1rem; border: 1px solid var(--line); aspect-ratio: 1 / 1; object-fit: cover; background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 2rem 0 3rem; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); margin-top: 3rem; }
.hero-visual {
    position: relative; min-height: 340px; border-radius: 1.5rem;
    background:
        radial-gradient(circle at 20% 20%, rgba(37,99,235,.18), transparent 24%),
        radial-gradient(circle at 80% 30%, rgba(124,58,237,.2), transparent 24%),
        linear-gradient(135deg, #dbeafe, #ede9fe 50%, #fff);
    border: 1px solid var(--line);
    overflow: hidden;
}
.hero-visual .stud {
    position: absolute; width: 52px; height: 52px; border-radius: 16px;
    box-shadow: inset 0 8px 12px rgba(255,255,255,.5), inset 0 -10px 16px rgba(0,0,0,.15), 0 10px 30px rgba(0,0,0,.08);
}
.hero-visual .stud::after {
    content: ""; position: absolute; inset: 14px; border-radius: 999px; background: rgba(255,255,255,.45);
    box-shadow: inset 0 -6px 10px rgba(0,0,0,.16);
}
.small { font-size: .92rem; color: var(--muted); }
.pricing { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.price { font-size: 2rem; font-weight: 800; }
.code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: #f8fafc; padding: .15rem .35rem; border-radius: .4rem; }
@media (max-width: 900px) {
    .hero-grid, .grid-3, .grid-2, .pricing, .project-list, .mosaic-grid, .footer-grid, .row, .check-grid { grid-template-columns: 1fr; }
    .nav-wrap { align-items: flex-start; }
    .site-header {
        position: static;
        background: rgba(255,255,255,.93); backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--line);
    }
}
button:disabled, .btn[disabled] {
    opacity: .55;
    cursor: not-allowed;
    filter: grayscale(35%);
}
.pricing-card form { margin-top: 1rem; }
.status {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: .25rem .6rem;
    font-weight: 800;
    font-size: .85rem;
    background: #f1f5f9;
    color: #334155;
}
.status-paid { background: #dcfce7; color: #166534; }
.status-pending { background: #fef9c3; color: #854d0e; }
.status-canceled { background: #fee2e2; color: #991b1b; }
.code-block {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: .75rem;
    padding: .75rem;
    overflow-wrap: anywhere;
}
.print-body { background: #e2e8f0; }
.print-toolbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--line);
}
.print-sheet { width: min(960px, calc(100% - 2rem)); margin: 1.5rem auto; }
.print-page {
    background: white;
    border: 1px solid var(--line);
    border-radius: 1rem;
    box-shadow: 0 15px 35px rgba(15, 23, 42, .1);
    margin-bottom: 1.5rem;
    padding: 2rem;
    page-break-after: always;
}
.print-page h1, .print-page h2, .print-page h3 { margin-top: 0; }
.print-meta { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.print-meta span { background: #f1f5f9; border-radius: 999px; padding: .4rem .7rem; font-weight: 700; }
.print-img { display: block; max-width: 100%; max-height: 8.7in; margin: 1rem auto; border: 1px solid var(--line); border-radius: .75rem; }
@media print {
    @page { size: letter; margin: .45in; }
    body { background: white; }
    .no-print { display: none !important; }
    .print-sheet { width: auto; margin: 0; }
    .print-page {
        border: 0;
        border-radius: 0;
        box-shadow: none;
        margin: 0;
        padding: 0;
        min-height: auto;
    }
    .print-page table { font-size: 10pt; }
    .print-img { max-height: 8.3in; }
}

input[type="number"] {
    width: 100%; border: 1px solid #cbd5e1; border-radius: .9rem; padding: .85rem .9rem; font: inherit; background: #fff;
}
.project-card .meta { margin-top: .75rem; }


.btn-danger { background: #dc2626; color: #fff; }
.btn-danger:hover { text-decoration: none; filter: brightness(1.03); }
.project-actions { align-items: stretch; }
.compare-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.section-part-list { display: flex; flex-wrap: wrap; gap: .45rem; }
.section-part-chip { background: #f8fafc; border: 1px solid var(--line); border-radius: 999px; padding: .35rem .6rem; font-size: .92rem; }
@media (max-width: 900px) {
    .compare-grid { grid-template-columns: 1fr; }
}
.admin-filter-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: .8rem;
    align-items: end;
}
.admin-filter-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
@media (max-width: 900px) {
    .admin-filter-grid { grid-template-columns: 1fr; }
}

.preview-studio {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}
.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}
.preview-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1rem;
}
.preview-card h3 {
    margin: 0 0 .25rem;
    font-size: 1rem;
}
.preview-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--line);
    border-radius: .9rem;
    overflow: hidden;
    background:
        linear-gradient(45deg, #f8fafc 25%, #e2e8f0 25%, #e2e8f0 50%, #f8fafc 50%, #f8fafc 75%, #e2e8f0 75%, #e2e8f0 100%);
    background-size: 20px 20px;
}
.preview-frame img,
.preview-frame canvas {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}
.preview-frame.canvas-frame canvas {
    image-rendering: pixelated;
}
.preview-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    margin-top: .75rem;
}
.preview-meta span {
    background: #f1f5f9;
    color: #334155;
    padding: .35rem .6rem;
    border-radius: 999px;
    font-size: .86rem;
    font-weight: 700;
}
.suggestion-box {
    border: 1px solid #bfdbfe;
    background: #eff6ff;
    color: #1d4ed8;
    border-radius: 1rem;
    padding: 1rem;
}
.suggestion-box strong {
    display: block;
    margin-bottom: .35rem;
}
.preview-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 1rem;
    color: var(--muted);
    font-size: .92rem;
}
@media (max-width: 900px) {
    .preview-grid {
        grid-template-columns: 1fr;
    }
}