/* ============================================
   Skills Gap Analyzer v2 - Main Stylesheet
   ============================================ */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1a1a1a;
    --bg-hover: #222;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --border: #333;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --purple: #a855f7;
    --radius: 12px;
    --radius-sm: 8px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 1rem 1.5rem;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
}

.lang-toggle {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 4px;
    border-radius: var(--radius-sm);
}

.lang-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
}

.lang-btn.active {
    background: var(--accent);
    color: white;
}

main { padding-top: 80px; min-height: 100vh; }

.context-bar {
    display: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.context-bar.visible { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }

.context-path { color: var(--text-secondary); }
.context-path strong { color: var(--text-primary); }
.context-exp { color: var(--accent); font-weight: 500; }

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.section { display: none; }
.section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero { text-align: center; padding: 4rem 0; }

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 2rem;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.hero-feature svg { color: var(--success); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 28px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.btn-secondary:hover { background: var(--bg-hover); }

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.stat { text-align: center; }

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.step-indicator {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    transition: all 0.3s;
}

.step-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.step-dot.completed { background: var(--success); }

.form-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-align: center;
}

.form-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
}

.form-group { margin-bottom: 1.5rem; }

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

select, input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

select:focus, input:focus {
    outline: none;
    border-color: var(--accent);
}

select option { background: var(--bg-card); }

.exp-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.exp-inputs select { width: auto; min-width: 70px; }
.exp-inputs input[type="number"] { width: 80px; text-align: center; }
.exp-label { color: var(--text-secondary); font-size: 0.9rem; }
.exp-hint { 
    color: var(--text-muted); 
    font-size: 0.8rem; 
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.form-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.skills-grid { display: grid; gap: 1rem; }

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.skill-name { font-weight: 500; }

.skill-importance {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.skill-importance.critical {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.skill-importance.important {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.skill-importance.nice {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.rating-input { display: flex; gap: 0.5rem; }

.rating-btn {
    flex: 1;
    padding: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.rating-btn:hover { background: var(--bg-hover); }

.rating-btn.selected {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.results-header {
    text-align: center;
    margin-bottom: 2rem;
}

#resultRoleName {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.result-path { color: var(--text-secondary); }
.result-path strong { color: var(--text-primary); }
.result-exp {
    color: var(--accent);
    font-weight: 500;
}

@media (max-width: 500px) {
    #resultRoleName {
        flex-direction: column;
        gap: 0.25rem;
    }
}

.score-display {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.score-circle { text-align: center; }

.score-ring {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.5rem;
    position: relative;
}

.score-ring::before {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: var(--bg-primary);
}

.score-value {
    position: relative;
    font-size: 2rem;
    font-weight: 700;
}

.score-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.readiness-high { background: conic-gradient(var(--success) calc(var(--pct) * 1%), var(--border) 0); }
.readiness-med { background: conic-gradient(var(--warning) calc(var(--pct) * 1%), var(--border) 0); }
.readiness-low { background: conic-gradient(var(--danger) calc(var(--pct) * 1%), var(--border) 0); }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card.transition-card {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(168, 85, 247, 0.3);
}

.transition-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.transition-from-to {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.transition-from-to strong { color: var(--text-primary); }

.transition-difficulty {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stars { display: flex; gap: 2px; }

.star { color: var(--border); font-size: 1rem; }
.star.filled { color: var(--warning); }

.difficulty-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.transition-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1rem 0;
}

.transition-stat {
    text-align: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.transition-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--purple);
}

.transition-stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.transition-stat-sublabel {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.typical-path {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-top: 1rem;
}

.typical-path-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--purple);
    margin-bottom: 0.5rem;
}

.typical-path-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.card.advantages-card {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.advantage-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.advantage-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 6px 12px;
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--success);
}

.advantage-tag svg { width: 14px; height: 14px; }

.no-advantages {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.salary-display {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}

.salary-tier {
    padding: 1rem;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
}

.salary-tier.current {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--accent);
}

.salary-amount {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.salary-level {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.salary-note {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

.salary-note.lateral { color: var(--success); }

.gap-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.gap-item:last-child { border-bottom: none; }

.gap-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.gap-icon {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.gap-icon.critical { background: var(--danger); }
.gap-icon.important { background: var(--warning); }
.gap-icon.nice { background: var(--success); }

.gap-levels {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.chart-container {
    max-width: 400px;
    margin: 0 auto;
}

.path-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.path-item:last-child { border-bottom: none; }

.path-number {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
}

.path-content { flex: 1; }

.path-skill {
    font-weight: 500;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.transfer-badge {
    font-size: 0.7rem;
    padding: 2px 6px;
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
    border-radius: 4px;
}

.path-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.total-hours {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.total-hours strong { color: var(--accent); }

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer a:hover { color: var(--accent); }

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 600px) {
    .hero h1 { font-size: 1.75rem; }
    .hero-features { flex-direction: column; gap: 0.75rem; }
    .stats { grid-template-columns: 1fr; gap: 1.5rem; }
    .score-display { gap: 1.5rem; }
    .salary-display { grid-template-columns: 1fr; }
    .transition-stats { grid-template-columns: 1fr; }
    .form-nav { flex-direction: column; gap: 1rem; }
    .form-nav .btn { width: 100%; justify-content: center; }
    .gap-item { flex-direction: column; align-items: flex-start; gap: 0.25rem; }
    .gap-levels { font-size: 0.8rem; }
}