:root {
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --bg: #0f0f23;
    --bg-card: #161633;
    --bg-card-hover: #1e1e44;
    --text: #e8e8f0;
    --text-secondary: #a0a0c0;
    --text-muted: #5a5a80;
    --border: #2a2a50;
    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.12);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 14px;
    --radius-sm: 10px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    background-image: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%);
}

.app { max-width: 620px; margin: 0 auto; padding: 0 20px 80px; }

.header { text-align: center; padding: 36px 0 20px; }
.header-icon { font-size: 36px; margin-bottom: 8px; }
.header h1 { font-size: 30px; font-weight: 800; letter-spacing: -1px; }
.gradient-text {
    background: linear-gradient(135deg, var(--accent), #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.tagline { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.section-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.input-section { padding: 8px 0; }

textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.7;
    resize: vertical;
    outline: none;
    transition: border-color var(--transition);
    min-height: 200px;
}
textarea::placeholder { color: var(--text-muted); }
textarea:focus { border-color: var(--accent); }

.target-section { padding: 8px 0; }
.target-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.target-field select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font);
    font-size: 13px;
    outline: none;
}
.target-field select:focus { border-color: var(--accent); }

.ai-section {
    margin: 10px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.ai-section summary {
    padding: 12px 14px;
    background: var(--bg-card);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-muted);
    list-style: none;
}
.ai-section summary::-webkit-details-marker { display: none; }
.ai-body { padding: 12px 14px; background: var(--bg-card); border-top: 1px solid var(--border); }
.ai-body input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 13px;
    font-family: var(--font);
    outline: none;
}
.ai-body input:focus { border-color: var(--accent); }
.hint { font-size: 11px; color: var(--text-muted); margin-top: 6px; }

.btn-analyze {
    width: 100%;
    padding: 14px;
    margin: 8px 0 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border: none;
    border-radius: var(--radius);
    color: white;
    font-family: var(--font);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}
.btn-analyze:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(139, 92, 246, 0.3); }
.btn-analyze:active { transform: scale(0.98); }
.btn-analyze:disabled { opacity: 0.6; cursor: wait; }

/* Results */
.results-section { display: flex; flex-direction: column; gap: 14px; }

.score-card {
    text-align: center;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    animation: fadeUp 0.4s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.overall-score { margin-bottom: 8px; }
.overall-number { font-size: 48px; font-weight: 800; letter-spacing: -2px; }
.overall-label { font-size: 18px; color: var(--text-muted); }
.overall-verdict { font-size: 14px; color: var(--text-secondary); }

.categories-card, .suggestions-card, .ai-review-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    animation: fadeUp 0.4s ease-out;
}

.card-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.categories-list { display: flex; flex-direction: column; gap: 10px; }

.category-item { display: flex; align-items: center; gap: 12px; }
.category-name { font-size: 13px; font-weight: 600; min-width: 130px; }
.category-bar-bg { flex: 1; height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.category-bar-fill { height: 100%; border-radius: 4px; transition: width 0.8s ease-out; }
.category-score { font-size: 13px; font-weight: 700; min-width: 30px; text-align: right; }

.suggestions-list { display: flex; flex-direction: column; gap: 8px; }

.suggestion-item {
    display: flex;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg);
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
}

.suggestion-icon { flex-shrink: 0; font-size: 16px; }
.suggestion-type { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 2px; }
.suggestion-type.critical { color: var(--danger); }
.suggestion-type.important { color: var(--warning); }
.suggestion-type.nice { color: var(--success); }

.ai-review-body {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

@media (max-width: 500px) {
    .target-row { grid-template-columns: 1fr; }
}