:root {
    --bg: #0b1220;
    --bg-soft: #111a2c;
    --panel: rgba(255,255,255,0.08);
    --panel-strong: rgba(255,255,255,0.12);
    --text: #eaf1ff;
    --muted: #a9b7d6;
    --accent: #63b3ff;
    --accent-2: #7cf3d0;
    --danger: #ff7a8a;
    --warning: #ffc86b;
    --ok: #73f0a8;
    --border: rgba(255,255,255,0.14);
    --shadow: 0 18px 45px rgba(0,0,0,0.28);
    --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--text);
    background:
      radial-gradient(circle at top left, rgba(99,179,255,0.16), transparent 28%),
      radial-gradient(circle at top right, rgba(124,243,208,0.12), transparent 24%),
      linear-gradient(180deg, #08101c 0%, #0d1727 100%);
}

.container { width: min(96%, 1380px); margin: 0 auto; }
.hidden { display: none !important; }
.glass {
    background: var(--panel);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    margin: 14px auto 0;
    width: min(96%, 1380px);
    border-radius: 26px;
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 24px;
}
.brand { margin: 0; font-size: clamp(1.45rem, 3vw, 2rem); }
.brand-sub { margin: 4px 0 0; color: var(--muted); }
.back-link { color: var(--accent-2); text-decoration: none; font-size: .95rem; }
.header-badge, .pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99,179,255,0.14);
    color: #dff2ff;
    border: 1px solid rgba(99,179,255,0.25);
    padding: 8px 14px;
    border-radius: 999px;
    font-size: .9rem;
}
.hero-section { padding: 56px 0 22px; }
.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr .9fr;
    gap: 28px;
    align-items: center;
}
.hero-copy h2 {
    margin: 16px 0 14px;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.12;
}
.hero-copy p {
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.7;
    max-width: 760px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    border-radius: 14px;
    padding: 13px 20px;
    font-weight: 700;
    transition: .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #78c0ff); color: #08101c; }
.btn-secondary { background: rgba(255,255,255,0.08); color: var(--text); border: 1px solid var(--border); }
.hero-card { border-radius: var(--radius); padding: 24px; }
.mini-stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}
.mini-stat, .meta-box {
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 14px;
}
.mini-stat span, .meta-box span { display: block; color: var(--muted); font-size: .86rem; }
.mini-stat strong, .meta-box strong { display: block; margin-top: 6px; font-size: 1rem; }
.mockup-table { border-radius: 18px; overflow: hidden; border: 1px solid var(--border); }
.mockup-head, .mockup-row {
    display: grid;
    grid-template-columns: 1fr 1.4fr .8fr .8fr;
    gap: 12px;
    padding: 14px 16px;
}
.mockup-head { background: rgba(255,255,255,0.1); font-weight: 700; }
.mockup-row { border-top: 1px solid rgba(255,255,255,0.08); color: var(--muted); }
.ok { color: var(--ok); }
.edit { color: var(--warning); }
.feature-section { padding: 20px 0 60px; }
.section-heading { margin-bottom: 20px; }
.section-heading h3 { font-size: 2rem; margin-bottom: 8px; }
.section-heading p { color: var(--muted); }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.feature-card {
    border-radius: var(--radius);
    padding: 22px;
}
.feature-card h4 { margin-top: 0; margin-bottom: 10px; font-size: 1.15rem; }
.feature-card p { margin: 0; color: var(--muted); line-height: 1.7; }
.site-footer { padding: 8px 0 28px; color: var(--muted); }
.footer-wrap { text-align: center; }
.editor-main { padding: 24px 0 38px; }
.toolbar, .table-panel {
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 20px;
}
.toolbar-grid {
    display: grid;
    grid-template-columns: 220px 220px 1fr;
    gap: 18px;
    align-items: end;
}
.field-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-weight: 600;
}
.field-group select {
    width: 100%;
    height: 48px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.08);
    color: var(--text);
    padding: 0 12px;
    outline: none;
}
.toolbar-info {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    flex-wrap: wrap;
}
.global-status.ok { color: var(--ok); }
.global-status.error { color: var(--danger); }
.global-status.loading { color: var(--warning); }
.empty-state {
    min-height: 240px;
    display: grid;
    place-items: center;
    text-align: center;
    color: var(--muted);
}
.table-wrap {
    overflow: auto;
    border-radius: 18px;
    border: 1px solid var(--border);
}
.data-table {
    width: 100%;
    min-width: 2200px;
    border-collapse: collapse;
    background: rgba(255,255,255,0.03);
}
.data-table thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: #13233a;
    color: #f4f8ff;
    text-align: left;
    padding: 12px 10px;
    font-size: .92rem;
    border-bottom: 1px solid var(--border);
}
.data-table tbody td {
    padding: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    vertical-align: top;
}
.data-table tbody tr:hover { background: rgba(255,255,255,0.04); }
.cell-input {
    width: 100%;
    min-width: 120px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.06);
    color: var(--text);
    border-radius: 12px;
    padding: 10px 12px;
    outline: none;
    resize: vertical;
    min-height: 42px;
    transition: border-color .2s, box-shadow .2s, background .2s;
}
textarea.cell-input { min-width: 220px; min-height: 74px; }
.cell-input:focus {
    border-color: rgba(99,179,255,0.55);
    box-shadow: 0 0 0 3px rgba(99,179,255,0.12);
    background: rgba(255,255,255,0.09);
}
.cell-input.saving { border-color: var(--warning); }
.cell-input.error { border-color: var(--danger); }
.cell-input.saved-flash { border-color: var(--ok); }
.id-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 56px;
    padding: 8px 10px;
    background: rgba(124,243,208,0.12);
    border: 1px solid rgba(124,243,208,0.2);
    border-radius: 999px;
    font-weight: 700;
}
.row-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 78px;
    padding: 8px 10px;
    border-radius: 999px;
    font-size: .85rem;
    font-weight: 700;
}
.row-badge.idle { background: rgba(255,255,255,0.08); }
.row-badge.saving { background: rgba(255,200,107,0.16); color: #ffe6b9; }
.row-badge.saved { background: rgba(115,240,168,0.16); color: #cffff1; }
.row-badge.error { background: rgba(255,122,138,0.16); color: #ffd8dd; }

@media (max-width: 1100px) {
    .hero-grid, .feature-grid, .toolbar-grid { grid-template-columns: 1fr; }
    .toolbar-info { justify-content: flex-start; }
}
@media (max-width: 720px) {
    .nav-wrap { padding: 16px; flex-direction: column; align-items: flex-start; }
    .hero-copy h2 { font-size: 2rem; }
    .feature-grid { grid-template-columns: 1fr; }
    .mini-stat-grid { grid-template-columns: 1fr 1fr; }
    .toolbar, .table-panel, .hero-card, .feature-card { padding: 16px; }
    .site-header { border-radius: 18px; }
}