/* ═══════════════════════════════════════════════════════
   CPTC Yourself — Dark Industrial Theme
   ═══════════════════════════════════════════════════════ */

:root {
    --bg-base:      #0f1117;
    --bg-card:      #1a1d27;
    --bg-card2:     #222637;
    --accent:       #f97316;
    --accent-dim:   #c05a0e;
    --accent2:      #3b82f6;
    --text-primary: #e8eaf0;
    --text-muted:   #8892a4;
    --border:       #2e3347;
    --danger:       #ef4444;
    --success:      #22c55e;
    --radius:       10px;
    --font:         "Segoe UI", system-ui, sans-serif;
}

html, body {
    font-family: var(--font);
    background: var(--bg-base);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
}

h1, h2, h3 { color: var(--text-primary) !important; }
h1 { font-size: 2rem; font-weight: 800; letter-spacing: -1px; }
h2 { font-size: 1.4rem; }
h1:focus { outline: none; }
a { color: var(--accent2); }
.accent { color: var(--accent); }

/* Layout shell */
.page { position: relative; display: flex; flex-direction: column; }
.sidebar { background: var(--bg-card); border-right: 1px solid var(--border); }
.top-row { background: var(--bg-card); border-bottom: 1px solid var(--border); height: 3.5rem; padding: 0 1rem; display: flex; align-items: center; justify-content: flex-end; }
.navbar-brand { color: var(--accent) !important; font-weight: 700; font-size: 1.1rem; }
.nav-link { color: var(--text-muted) !important; border-radius: var(--radius); padding: .5rem 1rem; transition: background .15s, color .15s; }
.nav-link:hover, .nav-link.active { color: var(--text-primary) !important; background: var(--bg-card2); }
article.content { padding: 1.5rem; flex: 1; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.25rem; }
.danger-zone { border-color: var(--danger); background: rgba(239,68,68,.06); }
.danger-zone h3 { color: var(--danger) !important; }
.danger-zone p  { color: var(--text-primary) !important; }

/* Buttons */
button, .btn-primary, .btn-ghost, .btn-danger { border: none; border-radius: var(--radius); cursor: pointer; font-size: .95rem; font-weight: 600; padding: .55rem 1.4rem; transition: filter .15s, transform .1s; }
.btn-primary { background: var(--accent); color: #fff !important; }
.btn-primary:hover:not(:disabled) { filter: brightness(1.15); }
.btn-primary:active:not(:disabled) { transform: scale(.97); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary.large { padding: .8rem 2.2rem; font-size: 1.1rem; }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-card2); color: var(--text-primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.1); }
.btn-danger:disabled { opacity: .5; cursor: not-allowed; }
.btn-icon-sm { background: transparent; border: none; font-size: 1.3rem; cursor: pointer; padding: .25rem .5rem; }

/* Form fields */
.field-label { display: block; font-size: .85rem; color: var(--text-muted); margin-bottom: .3rem; margin-top: 1rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.field-input { display: block; width: 100%; background: var(--bg-base); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); padding: .55rem .9rem; font-size: 1rem; outline: none; box-sizing: border-box; }
.field-input:focus { border-color: var(--accent2); box-shadow: 0 0 0 2px rgba(59,130,246,.3); }

/* Alerts */
.alert-success { background: rgba(34,197,94,.12); border: 1px solid var(--success); border-radius: var(--radius); padding: .75rem 1rem; color: var(--success); margin-bottom: 1rem; }
.alert-error { background: rgba(239,68,68,.12); border: 1px solid var(--danger); border-radius: var(--radius); padding: .75rem 1rem; color: var(--danger); margin-bottom: 1rem; }
.status-message { text-align: center; color: var(--accent2); padding: .75rem; font-weight: 600; font-size: 1.05rem; }

/* Lock screen */
.lock-screen { display: flex; align-items: center; justify-content: center; min-height: 80vh; }
.lock-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 3rem 2.5rem; text-align: center; max-width: 420px; width: 100%; }
.lock-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.lock-card p { color: var(--text-muted); margin: .75rem 0 1.75rem; }
.lock-card .btn-primary { display: block; width: 100%; margin-bottom: .75rem; }
.lock-card .btn-ghost { display: block; width: 100%; }

/* Settings / Unlock pages */
.settings-page, .unlock-page { max-width: 540px; margin: 0 auto; padding: 2rem 1rem; }
.page-title { margin-bottom: .25rem; }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; font-size: .95rem; }
.unlock-card .btn-primary { display: block; width: 100%; margin-top: 1.25rem; }
.unlock-page .btn-ghost { display: block; text-align: center; margin-top: 1rem; }

/* Home page */
.home-page { max-width: 900px; margin: 0 auto; padding: 1.5rem 1rem; }
.home-header { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.home-header h1 { margin: 0; flex: 1; }
.tagline { color: var(--text-muted); margin: 0; font-size: .95rem; flex-basis: 100%; }

/* Chips */
.options-section { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.5rem; }
.option-group { margin-bottom: 1rem; }
.option-group:last-child { margin-bottom: 0; }
.option-label { display: block; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: .6rem; }
.chip-list { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { background: var(--bg-base); border: 1px solid var(--border); border-radius: 20px; color: var(--text-muted); padding: .3rem .9rem; font-size: .85rem; font-weight: 500; cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.chip:hover { border-color: var(--accent2); color: var(--text-primary); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Camera */
.capture-section { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.5rem; }
.photo-capture { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.camera-preview { width: 100%; max-width: 480px; border-radius: var(--radius); border: 2px solid var(--border); background: #000; aspect-ratio: 4/3; object-fit: cover; }
.camera-controls { display: flex; gap: .75rem; flex-wrap: wrap; justify-content: center; }
.captured-thumb { width: 140px; border-radius: var(--radius); border: 2px solid var(--accent); }

/* Result */
.result-section { background: var(--bg-card); border: 1px solid var(--accent); border-radius: var(--radius); padding: 1.5rem; text-align: center; margin-bottom: 1.5rem; }
.result-image { max-width: 100%; width: 512px; border-radius: var(--radius); border: 2px solid var(--border); margin: 1rem auto; display: block; }
.result-actions { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; margin-top: .75rem; }
.result-actions a.btn-primary { text-decoration: none; }
.prompt-details { margin-top: 1rem; text-align: left; color: var(--text-muted); font-size: .85rem; }
.prompt-details summary { cursor: pointer; color: var(--accent2); }
.prompt-details pre { white-space: pre-wrap; word-break: break-word; background: var(--bg-base); padding: .75rem; border-radius: var(--radius); margin-top: .5rem; }

/* Blazor loading / error */
#blazor-error-ui { background: var(--bg-card); border-top: 2px solid var(--danger); color: var(--text-primary); bottom: 0; left: 0; right: 0; padding: .75rem 1rem; position: fixed; display: none; z-index: 1000; }
#blazor-error-ui .reload { color: var(--accent2); }
#blazor-error-ui .dismiss { cursor: pointer; float: right; }
.loading-progress { position: relative; display: block; width: 8rem; height: 8rem; margin: 20vh auto 1rem; }
.loading-progress circle { fill: none; stroke: var(--accent); stroke-width: 0.6rem; transform-origin: 50% 50%; transform: rotate(-90deg); transition: stroke-dasharray 0.05s ease-in-out; }
.loading-progress circle:last-child { stroke: var(--border); stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%; }
.loading-progress-text::after { content: var(--blazor-load-percentage-text, "Loading"); color: var(--text-muted); }

/* Scrollbars */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }