/* ═══════════════════════════════════════════════
   SY Arch — Professional Architectural Drafting
   style.css
   ═══════════════════════════════════════════════ */

:root {
    --bg-dark: #1a1a2e;
    --bg-panel: #16213e;
    --bg-panel-hover: #1f2f52;
    --accent: #0088ff;
    --accent-glow: rgba(0, 136, 255, 0.3);
    --text-primary: #e0e0e0;
    --text-secondary: #8899aa;
    --border: #2a3a5c;
    --danger: #ff4444;
    --font: 'Inter', 'Segoe UI', system-ui, sans-serif;
    --radius: 6px;
    --transition: 150ms ease;
}

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

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font);
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-dark);
    -webkit-font-smoothing: antialiased;
}

/* ── App Layout ─────────────────────────────── */

.app-container {
    display: grid;
    grid-template-columns: 52px 1fr 240px;
    grid-template-rows: 40px 1fr 28px;
    grid-template-areas:
        "toolbar topbar   panels"
        "toolbar viewport panels"
        "toolbar statusbar statusbar";
    width: 100%;
    height: 100%;
}

/* ── Top Bar ────────────────────────────────── */

.topbar {
    grid-area: topbar;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
}

.topbar .brand {
    font-weight: 700;
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 1px;
}

.topbar .separator {
    width: 1px;
    height: 20px;
    background: var(--border);
}

.topbar .project-name {
    color: var(--text-secondary);
    font-size: 12px;
}

.topbar .unit-select {
    margin-left: auto;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3px 8px;
    font-size: 11px;
    cursor: pointer;
}

.topbar .unit-select:focus {
    outline: none;
    border-color: var(--accent);
}

/* ── Toolbar (Left Sidebar) ─────────────────── */

.toolbar {
    grid-area: toolbar;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 0;
    gap: 2px;
}

.tool-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition);
}

.tool-btn:hover {
    background: var(--bg-panel-hover);
    color: var(--text-primary);
}

.tool-btn.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* ── Viewport ───────────────────────────────── */

.viewport {
    grid-area: viewport;
    position: relative;
    overflow: hidden;
    background: #0d1117;
}

.viewport canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* ── Panels (Right Sidebar) ─────────────────── */

.panels {
    grid-area: panels;
    background: var(--bg-panel);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-section {
    border-bottom: 1px solid var(--border);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.15);
    user-select: none;
}

.panel-header .panel-actions {
    display: flex;
    gap: 4px;
}

.panel-header .panel-actions button {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition);
}

.panel-header .panel-actions button:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── Layer List ─────────────────────────────── */

#layer-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.layer-item {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    gap: 8px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all var(--transition);
}

.layer-item:hover {
    background: var(--bg-panel-hover);
}

.layer-item.active {
    background: rgba(0, 136, 255, 0.1);
    border-left-color: var(--accent);
}

.layer-item .layer-vis {
    background: none;
    border: none;
    font-size: 14px;
    cursor: pointer;
    padding: 2px;
    color: var(--text-secondary);
}

.layer-item .layer-name {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary);
}

.layer-item .layer-lock {
    font-size: 11px;
    color: var(--text-secondary);
}

/* ── Status Bar ─────────────────────────────── */

.statusbar {
    grid-area: statusbar;
    background: var(--bg-panel);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-size: 11px;
    color: var(--text-secondary);
    gap: 20px;
}

.statusbar .status-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.statusbar .snap-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #44aa44;
}

.statusbar .snap-indicator.off {
    background: #666;
}

/* ── Top Bar Buttons ────────────────────────── */

.topbar-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px 10px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.topbar-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── Snap Settings ──────────────────────────── */

.snap-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
}

.snap-toggle input[type="checkbox"] {
    accent-color: var(--accent);
}

/* ── Property Row ───────────────────────────── */

.prop-row {
    display: flex;
    align-items: center;
    padding: 4px 12px;
    gap: 8px;
}

.prop-row label {
    width: 70px;
    font-size: 11px;
    color: var(--text-secondary);
}

.prop-row input {
    flex: 1;
    padding: 3px 6px;
    font-size: 11px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text-primary);
    outline: none;
}

.prop-row input:focus {
    border-color: var(--accent);
}

/* ── Scrollbar ──────────────────────────────── */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #3a4a6c;
}

/* ── Animations ─────────────────────────────── */

@keyframes ctxFadeIn {
    from {
        opacity: 0;
        transform: translateY(4px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}