/* StomaSeg Platform Styles */

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

:root {
    --primary: #0072B2;
    --primary-light: #56B4E9;
    --accent: #E69F00;
    --bg: #f8f9fa;
    --card-bg: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --border: #e0e0e0;
    --radius: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* Layout */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* Navigation */
nav {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
nav .container { display: flex; align-items: center; gap: 32px; }
nav .logo { font-size: 1.25rem; font-weight: 700; color: var(--primary); text-decoration: none; }
nav a { color: var(--text-light); text-decoration: none; font-size: 0.9rem; }
nav a:hover, nav a.active { color: var(--primary); }

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

/* Stat cards row */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 32px 0; }
.stat-card { text-align: center; }
.stat-card .value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-card .label { font-size: 0.85rem; color: var(--text-light); margin-top: 4px; }

/* Hero section */
.hero { text-align: center; padding: 48px 0 24px; }
.hero h1 { font-size: 2.2rem; font-weight: 700; margin-bottom: 12px; }
.hero p { font-size: 1.1rem; color: var(--text-light); max-width: 640px; margin: 0 auto; }

/* CTA buttons */
.cta-row { display: flex; justify-content: center; gap: 16px; margin: 32px 0; }
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-sm { padding: 6px 14px; font-size: 0.85rem; }

/* Demo gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin: 24px 0; }
.gallery-card {
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    overflow: hidden;
}
.gallery-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.gallery-card img { width: 100%; height: auto; display: block; }
.gallery-card .info { padding: 12px; }
.gallery-card .info .name { font-weight: 600; font-size: 0.9rem; }
.gallery-card .info .meta { font-size: 0.8rem; color: var(--text-light); margin-top: 4px; }

/* Result view */
.result-view { display: grid; grid-template-columns: 1fr 320px; gap: 24px; margin: 24px 0; }
.result-view.no-sidebar { grid-template-columns: 1fr; }

/* Canvas container */
.canvas-container {
    position: relative;
    background: #222;
    border-radius: var(--radius);
    overflow: hidden;
}

/* Tooltip */
.viewer-tooltip {
    position: absolute;
    background: rgba(0,0,0,0.85);
    color: #fff;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    pointer-events: none;
    z-index: 10;
    white-space: nowrap;
}

/* Sidebar panels */
.sidebar { display: flex; flex-direction: column; gap: 16px; }
.panel { padding: 16px; }
.panel h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 12px; color: var(--primary); }

/* Controls panel */
.controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 16px 0; }
.control-group { display: flex; align-items: center; gap: 6px; }
.control-group label { font-size: 0.85rem; color: var(--text-light); white-space: nowrap; }
.control-group input[type="range"] { width: 100px; }
.control-group input[type="number"] { width: 80px; padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px; font-size: 0.85rem; }
.control-group select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--card-bg);
}

/* Toggle buttons */
.toggle-group { display: flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.toggle-group button {
    padding: 6px 14px;
    border: none;
    background: var(--card-bg);
    font-size: 0.85rem;
    cursor: pointer;
    border-right: 1px solid var(--border);
}
.toggle-group button:last-child { border-right: none; }
.toggle-group button.active { background: var(--primary); color: #fff; }

/* Stats table */
.stats-table { width: 100%; font-size: 0.85rem; }
.stats-table td { padding: 4px 0; }
.stats-table td:first-child { color: var(--text-light); }
.stats-table td:last-child { text-align: right; font-weight: 500; font-variant-numeric: tabular-nums; }

/* Detail panel (selected stoma) */
.detail-panel .empty { color: var(--text-light); font-size: 0.85rem; font-style: italic; }
.detail-panel .trait-row { display: flex; justify-content: space-between; padding: 3px 0; font-size: 0.85rem; }
.detail-panel .trait-row .label { color: var(--text-light); }
.detail-panel .trait-row .value { font-weight: 500; font-variant-numeric: tabular-nums; }

/* Upload zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(0, 114, 178, 0.04);
}
.upload-zone .icon { font-size: 2rem; color: var(--text-light); margin-bottom: 8px; }
.upload-zone .text { color: var(--text-light); font-size: 0.95rem; }

/* Progress */
.progress-bar { width: 100%; height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin: 12px 0; }
.progress-bar .fill { height: 100%; background: var(--primary); transition: width 0.3s; }

/* Error/status messages */
.msg { padding: 12px 16px; border-radius: var(--radius); margin: 12px 0; font-size: 0.9rem; }
.msg-error { background: #fff3f3; color: #d32f2f; border: 1px solid #ffcdd2; }
.msg-info { background: #e3f2fd; color: #1565c0; border: 1px solid #bbdefb; }

/* Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
footer {
    text-align: center;
    padding: 24px 0;
    margin-top: 48px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-light);
}
footer a { color: var(--primary); text-decoration: none; }

/* Hide element */
.hidden { display: none !important; }