:root {
    --bg-main: #0B0F19;
    --card-bg: rgba(22, 28, 45, 0.85);
    --card-border: rgba(255, 255, 255, 0.12);
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    
    --accent-emerald: #10B981;
    --accent-cyan: #06B6D4;
    --accent-blue: #3B82F6;
    --accent-purple: #8B5CF6;
    --accent-amber: #F59E0B;
    --accent-rose: #F43F5E;
    
    --stat-atk: #EF4444;
    --stat-def: #3B82F6;
    --stat-quick: #10B981;
    --stat-hp: #F59E0B;
    
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    --shadow-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Noto Sans KR', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 10% 10%, rgba(6, 182, 212, 0.15) 0px, transparent 50%),
        radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.15) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(139, 92, 246, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    padding: 1.25rem 0.75rem;
    display: flex;
    justify-content: center;
}

.app-container {
    width: 100%;
    max-width: 1020px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow);
    flex-wrap: wrap;
    gap: 0.75rem;
}

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

.logo-icon {
    font-size: 2.2rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.app-header h1 {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #A5F3FC 0%, #34D399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.badge {
    background: rgba(16, 185, 129, 0.2);
    color: #34D399;
    border: 1px solid rgba(16, 185, 129, 0.4);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 700;
}

/* Tab Navigation Bar */
.tab-nav {
    display: flex;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 0.4rem;
    gap: 0.5rem;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 700;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.25) 0%, rgba(16, 185, 129, 0.25) 100%);
    border: 1px solid rgba(6, 182, 212, 0.4);
    color: #A5F3FC;
    box-shadow: 0 4px 16px rgba(6, 182, 212, 0.2);
}

.tab-content.hidden {
    display: none !important;
}

/* Main Grid Layouts */
.main-grid {
    display: grid;
    grid-template-columns: 440px 1fr;
    gap: 1.25rem;
    align-items: start;
    transition: all 0.3s ease;
}

.main-grid.single-column {
    grid-template-columns: 1fr;
    justify-items: center;
}

@media (max-width: 920px) {
    .main-grid {
        grid-template-columns: 1fr !important;
        justify-items: stretch;
    }
}

/* Card Styling */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-glow);
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.input-card {
    max-width: 440px;
    width: 100%;
}

.main-grid.single-column .input-card {
    max-width: 480px;
}

@media (max-width: 920px) {
    .input-card {
        max-width: 100% !important;
    }
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 0.65rem;
}

.card-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
}

.step-tag {
    background: rgba(59, 130, 246, 0.2);
    color: #93C5FD;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
}

.step-tag.success {
    background: rgba(16, 185, 129, 0.2);
    color: #6EE7B7;
}

.sub-section-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-top: 0.4rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px dashed rgba(6, 182, 212, 0.3);
}

/* Form Styles */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.label-with-val {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slider-val {
    font-size: 0.95rem;
    font-weight: 900;
    color: var(--accent-cyan);
}

input[type="text"], input[type="number"], select {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.55rem 0.7rem;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
    width: 100%;
}

.pet-db-select {
    height: 120px;
    overflow-y: auto;
    margin-top: 0.3rem;
}

.pet-db-select option {
    background: #111827;
    color: #F3F4F6;
    padding: 0.35rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pet-db-select option:hover, .pet-db-select option:focus {
    background: rgba(6, 182, 212, 0.3);
    color: #A5F3FC;
}

input[type="text"]:focus, input[type="number"]:focus, select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.25);
}

.level-input-container {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

input[type="range"] {
    flex: 1;
    height: 8px;
    accent-color: var(--accent-cyan);
    cursor: pointer;
}

.level-input-container input[type="number"] {
    width: 65px;
    text-align: center;
    font-weight: 700;
}

/* Analyze Button */
.btn-analyze {
    margin-top: 1.1rem;
    width: 100%;
    background: linear-gradient(135deg, #06B6D4 0%, #10B981 100%);
    border: none;
    color: #FFFFFF;
    font-size: 1.05rem;
    font-weight: 800;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.35);
    transition: all 0.25s ease;
}

.btn-analyze:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(16, 185, 129, 0.5);
    filter: brightness(1.1);
}

.btn-analyze:active {
    transform: translateY(0);
}

/* Tab 2 Special Elements */
.t2-rate-card {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(239, 68, 68, 0.2) 100%);
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--radius-md);
    padding: 1.1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.t2-rate-lbl {
    font-size: 0.85rem;
    font-weight: 700;
    color: #FDE68A;
}

.t2-rate-val {
    font-size: 2.3rem;
    font-weight: 900;
    color: #FBBF24;
    letter-spacing: -1px;
}

.t2-rate-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.t2-distribution-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.4rem;
}

.t2-dist-chip {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.65rem;
    font-size: 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.t2-dist-chip.highlight {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #FCA5A5;
}

.t2-table-wrapper {
    overflow-x: auto;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.3);
}

.t2-srank-table, .t2-result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    text-align: center;
}

.t2-srank-table th, .t2-result-table th {
    background: rgba(255, 255, 255, 0.06);
    color: var(--accent-cyan);
    padding: 0.55rem 0.5rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.t2-srank-table td, .t2-result-table td {
    padding: 0.5rem 0.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.t2-result-table tr:hover {
    background: rgba(6, 182, 212, 0.15);
}

.text-danger {
    color: #EF4444 !important;
    font-weight: 800;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}

.init-stats-grid {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    background: rgba(0, 0, 0, 0.25);
    padding: 0.65rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

@media (max-width: 480px) {
    .init-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.stat-group.atk label { color: #FCA5A5; }
.stat-group.def label { color: #93C5FD; }
.stat-group.quick label { color: #6EE7B7; }
.stat-group.hp label { color: #FDE68A; }

.growth-toggle-area {
    margin-top: 0.75rem;
    padding-top: 0.6rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.hidden {
    display: none !important;
}

/* Genuine Listing Analyzer Box */
.genuine-analyzer-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(245, 158, 11, 0.15) 100%);
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.genuine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    font-weight: 700;
    color: #A7F3D0;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.genuine-badge {
    background: rgba(16, 185, 129, 0.3);
    color: #6EE7B7;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    border: 1px solid rgba(16, 185, 129, 0.5);
}

.genuine-badge.warning {
    background: rgba(244, 63, 94, 0.3);
    color: #FDA4AF;
    border-color: rgba(244, 63, 94, 0.5);
}

.genuine-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.35;
}

.float-position-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.2rem;
}

@media (max-width: 480px) {
    .float-position-grid {
        grid-template-columns: 1fr;
    }
}

.float-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.55rem 0.65rem;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.f-lbl {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.f-bar-wrap {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.f-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.f-bar.atk { background: var(--stat-atk); }
.f-bar.def { background: var(--stat-def); }
.f-bar.quick { background: var(--stat-quick); }
.f-bar.hp { background: var(--stat-hp); }

.f-val {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Pet Grade Evaluation Card */
.grade-evaluation-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.grade-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: #DDD6FE;
}

.overall-grade-badge {
    background: linear-gradient(135deg, #8B5CF6 0%, #EC4899 100%);
    color: #FFFFFF;
    font-size: 1.2rem;
    font-weight: 900;
    padding: 0.2rem 0.8rem;
    border-radius: 8px;
    box-shadow: 0 0 12px rgba(236, 72, 153, 0.4);
}

.grade-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 0.5rem;
}

@media (max-width: 600px) {
    .grade-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.grade-item {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
}

.grade-item.atk { border-top: 3px solid var(--stat-atk); }
.grade-item.def { border-top: 3px solid var(--stat-def); }
.grade-item.quick { border-top: 3px solid var(--stat-quick); }
.grade-item.hp { border-top: 3px solid var(--stat-hp); }

.g-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.g-val {
    font-size: 1.25rem;
    font-weight: 900;
    color: #F3F4F6;
}

.g-sub {
    font-size: 0.68rem;
    color: var(--text-muted);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.metric-box {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.metric-box.primary {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(16, 185, 129, 0.2) 100%);
    border-color: rgba(52, 211, 153, 0.4);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.metric-val {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.metric-box.primary .metric-val {
    color: #6EE7B7;
}

.metric-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Live Calculated Growth Summary */
.calc-growth-summary {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.calc-growth-summary h4 {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.growth-chips {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.5rem;
    font-size: 0.78rem;
    text-align: center;
    color: var(--text-secondary);
}

.chip.atk { border-color: rgba(239, 68, 68, 0.3); }
.chip.def { border-color: rgba(59, 130, 246, 0.3); }
.chip.quick { border-color: rgba(16, 185, 129, 0.3); }
.chip.hp { border-color: rgba(245, 158, 11, 0.3); }

.chip strong {
    color: var(--text-primary);
}

.ref-s {
    font-size: 0.7rem;
    color: var(--accent-cyan);
    margin-left: 0.2rem;
}

/* Stat Breakdown */
.stat-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.stat-breakdown h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.progress-bar {
    height: 12px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 6px;
    display: flex;
    overflow: hidden;
}

.progress-segment {
    height: 100%;
    transition: width 0.3s ease;
}

.progress-segment.atk { background: var(--stat-atk); }
.progress-segment.def { background: var(--stat-def); }
.progress-segment.quick { background: var(--stat-quick); }
.progress-segment.hp { background: var(--stat-hp); }

.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot.atk { background: var(--stat-atk); }
.dot.def { background: var(--stat-def); }
.dot.quick { background: var(--stat-quick); }
.dot.hp { background: var(--stat-hp); }

/* Collapsible Footer Guide */
.formula-footer {
    gap: 0.75rem;
}

.footer-header-toggle {
    cursor: pointer;
    user-select: none;
    padding: 0.2rem 0;
    transition: color 0.2s ease;
}

.footer-header-toggle:hover h2 {
    color: var(--accent-cyan);
}

.formula-footer h2 {
    font-size: 0.95rem;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.toggle-icon {
    font-size: 0.8rem;
    color: var(--accent-cyan);
    font-weight: 600;
}

.formula-boxes {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.85rem;
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .formula-boxes {
        grid-template-columns: 1fr;
    }
}

.f-box {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.f-box h4 {
    font-size: 0.82rem;
    color: var(--accent-cyan);
}

.f-box code {
    font-family: monospace;
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    color: #F3F4F6;
}

.f-box p {
    font-size: 0.73rem;
    color: var(--text-muted);
}