/* ============================================
   Design Tokens
   ============================================ */
:root {
    --color-bg: #1a1a1f;
    --color-surface: #25252d;
    --color-surface-alt: #2f2f38;
    --color-border: #3a3a44;
    --color-border-focus: #52525e;

    --color-text-primary: #e4e4e7;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;

    --color-accent: #22d3ee;
    --color-accent-hover: #06b6d4;
    --color-accent-soft: rgba(34, 211, 238, 0.1);
    --color-accent-glow: rgba(34, 211, 238, 0.3);

    --color-chair: #a78bfa;
    --color-desk: #22d3ee;
    --color-monitor: #fbbf24;

    --gradient-bg:
        radial-gradient(circle at 20% 10%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(251, 191, 36, 0.05) 0%, transparent 70%);

    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-accent-glow);

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   Reset & Base
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-base);
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--color-text-primary);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Background
   ============================================ */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-bg);
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   App Container (100vh)
   ============================================ */
.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================
   Header (Compact)
   ============================================ */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

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

.brand-icon {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
    filter: drop-shadow(0 0 8px var(--color-accent-glow));
}

.brand-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--color-accent) 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

/* ============================================
   Main Grid (2 Columns)
   ============================================ */
.main-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
    padding: 1.5rem 0;
    overflow: hidden;
}

/* ============================================
   Input Section (Left)
   ============================================ */
.input-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    padding-right: 0.5rem;
}

/* Preset Chips */
.preset-chips {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.preset-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
}

.chip-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.chip-label {
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.3;
    text-align: left;
}

.chip-label small {
    display: block;
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
    margin-top: 0.125rem;
}

.preset-chip:hover {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.preset-chip:active {
    transform: translateY(0);
}

/* Input Group */
.input-group {
    background: rgba(37, 37, 45, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
}

.input-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.8125rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.label-hint {
    font-weight: 400;
    color: var(--color-text-tertiary);
    font-size: 0.75rem;
}

/* Height Control */
.height-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.stepper-btn {
    width: 44px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.stepper-btn svg {
    width: 18px;
    height: 18px;
}

.stepper-btn:hover {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.stepper-btn:active {
    transform: scale(0.95);
}

.height-input-wrapper {
    position: relative;
    flex: 1;
}

.height-input {
    width: 100%;
    height: 52px;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: rgba(47, 47, 56, 0.8);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
    font-variant-numeric: tabular-nums;
    padding-right: 2.5rem;
}

.height-input::placeholder {
    color: var(--color-text-tertiary);
    font-size: 1rem;
    font-weight: 400;
}

.height-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-soft);
    background: var(--color-surface-alt);
}

.height-input::-webkit-inner-spin-button,
.height-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.height-unit {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    pointer-events: none;
}

/* Slider */
.height-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(to right,
            rgba(34, 211, 238, 0.2) 0%,
            var(--color-accent) 50%,
            rgba(34, 211, 238, 0.2) 100%);
    border-radius: var(--radius-full);
    outline: none;
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.height-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    border: 3px solid var(--color-surface);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transition: transform var(--transition-fast);
}

.height-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.height-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    border: 3px solid var(--color-surface);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transition: transform var(--transition-fast);
}

.height-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

#current-value {
    font-weight: 600;
    color: var(--color-accent);
    font-size: 0.8125rem;
}

/* Profile Tabs */
.profile-tabs {
    display: flex;
    gap: 0.375rem;
    background: var(--color-surface-alt);
    padding: 0.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.profile-tab {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.profile-tab[aria-selected="true"] {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

/* ============================================
   Results Section (Right)
   ============================================ */
.results-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.result-card {
    background: rgba(37, 37, 45, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-color);
    opacity: 0.6;
}

.result-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 24px rgba(0, 0, 0, 0.4), 0 0 16px var(--accent-color-glow);
    transform: translateY(-2px);
}

.result-card:hover::before {
    opacity: 1;
}

.result-card[data-type="chair"] {
    --accent-color: var(--color-chair);
    --accent-color-glow: rgba(167, 139, 250, 0.3);
}

.result-card[data-type="desk"] {
    --accent-color: var(--color-desk);
    --accent-color-glow: rgba(34, 211, 238, 0.3);
}

.result-card[data-type="monitor"] {
    --accent-color: var(--color-monitor);
    --accent-color-glow: rgba(251, 191, 36, 0.3);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.card-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    flex-shrink: 0;
}

.card-icon svg {
    width: 18px;
    height: 18px;
}

.card-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-value {
    display: flex;
    align-items: baseline;
    gap: 0.375rem;
    margin-bottom: 0.5rem;
}

.value-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    font-variant-numeric: tabular-nums;
    line-height: 1;
    text-shadow: 0 0 20px var(--accent-color-glow);
}

.value-unit {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    font-weight: 600;
}

.card-range {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.card-range span {
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ============================================
   Info Tabs (NEW)
   ============================================ */
.info-tabs {
    display: flex;
    gap: 0.5rem;
    background: var(--color-surface-alt);
    padding: 0.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.info-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.info-tab svg {
    width: 16px;
    height: 16px;
}

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

.info-tab.active {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ============================================
   Setup Guide
   ============================================ */
.setup-guide {
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    gap: 1.5rem;
}

.guide-step {
    flex: 1;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.step-num {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-bg);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
}

.guide-step p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.guide-step strong {
    color: var(--color-accent);
    font-weight: 600;
    display: block;
    margin-bottom: 0.125rem;
}

/* ============================================
   Formula Section (NEW)
   ============================================ */
.formula-section {
    background: rgba(37, 37, 45, 0.4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Formula Header */
.formula-header {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.formula-icon {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.formula-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.formula-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    line-height: 1.4;
}

/* Formula Grid */
.formula-grid {
    display: grid;
    gap: 1rem;
}

.formula-card {
    background: rgba(47, 47, 56, 0.5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.formula-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.formula-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.formula-equation {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

.formula-equation code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 600;
}

.formula-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.formula-details li {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    padding-left: 1rem;
    position: relative;
}

.formula-details li::before {
    content: '·';
    position: absolute;
    left: 0.25rem;
    color: var(--color-text-tertiary);
}

.formula-details strong {
    color: var(--color-accent);
    font-weight: 600;
}

/* Tolerance Note */
.tolerance-note {
    display: flex;
    gap: 1rem;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.tolerance-note svg {
    width: 24px;
    height: 24px;
    color: var(--color-monitor);
    flex-shrink: 0;
}

.tolerance-note strong {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-monitor);
    margin-bottom: 0.25rem;
}

.tolerance-note p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* Adjustment Table */
.adjustment-table {
    background: rgba(47, 47, 56, 0.5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.adjustment-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
}

.adjustment-grid {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

.adjustment-grid th {
    text-align: left;
    padding: 0.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.6875rem;
}

.adjustment-grid td {
    padding: 0.5rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(58, 58, 68, 0.5);
}

.adjustment-grid tbody tr:last-child td {
    border-bottom: none;
}

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

/* References */
.references {
    background: rgba(47, 47, 56, 0.5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.references-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
}

.references-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.references-list li {
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.references-list strong {
    color: var(--color-accent);
    font-weight: 600;
}

.references-list span {
    color: var(--color-text-tertiary);
    padding-left: 1rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    text-align: center;
    padding: 0.75rem 0;
    border-top: 1px solid var(--color-border);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    flex-shrink: 0;
}

.footer-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* ============================================
   Responsive (Mobile: Stack Vertically)
   ============================================ */
@media (max-width: 1024px) {

    html,
    body {
        overflow: auto;
    }

    .app-container {
        height: auto;
        min-height: 100vh;
    }

    .main-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        overflow: visible;
    }

    .input-section,
    .results-section {
        overflow: visible;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .setup-guide {
        flex-direction: column;
        gap: 1rem;
    }

    .preset-chips {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 640px) {
    .app-container {
        padding: 0 1rem;
    }

    .brand-subtitle {
        display: none;
    }

    .preset-chips {
        grid-template-columns: repeat(2, 1fr);
    }

    .height-input {
        font-size: 1.5rem;
    }

    .value-number {
        font-size: 1.75rem;
    }

    .info-tab span {
        display: none;
    }
}

/* ============================================
   Accessibility
   ============================================ */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Custom Scrollbar */
.input-section::-webkit-scrollbar,
.results-section::-webkit-scrollbar {
    width: 6px;
}

.input-section::-webkit-scrollbar-track,
.results-section::-webkit-scrollbar-track {
    background: transparent;
}

.input-section::-webkit-scrollbar-thumb,
.results-section::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

.input-section::-webkit-scrollbar-thumb:hover,
.results-section::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-focus);
}

/* ============================================
   🆕 Environment Toggle (사용 환경 선택)
   ============================================ */
.env-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.env-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.375rem;
    padding: 1rem 0.75rem;
    background: var(--color-surface-alt);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.env-option:hover {
    background: rgba(47, 47, 56, 0.9);
    border-color: rgba(34, 211, 238, 0.5);
    transform: translateY(-1px);
}

.env-option.active {
    background: rgba(34, 211, 238, 0.15);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent), 0 4px 12px rgba(34, 211, 238, 0.2);
}

.env-icon {
    font-size: 2rem;
    line-height: 1;
}

.env-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.env-option.active .env-label {
    color: var(--color-accent);
    font-weight: 600;
}

.env-desc {
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
    text-align: center;
    line-height: 1.3;
}

/* 🆕 Environment Note in Formula Section */
.env-note {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: var(--radius-md);
    padding: 0.875rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.env-note strong {
    color: var(--color-monitor);
    font-weight: 600;
}

/* Card Header (결과 카드 헤더 추가) */
.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

/* ============================================
   🆕 Profile Note (체형 보정 설명)
   ============================================ */
.profile-note {
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
}

.profile-note-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.profile-note-header svg {
    width: 20px;
    height: 20px;
    color: var(--color-chair);
}

.profile-note-header strong {
    font-size: 0.875rem;
    color: var(--color-chair);
    font-weight: 600;
}

.profile-note p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.profile-offsets {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.offset-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.offset-label {
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.offset-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
}

.offset-value.positive {
    color: #22d3ee;
}

.offset-value.negative {
    color: #fbbf24;
}

/* Offset Detail in Formula Cards */
.offset-detail {
    color: var(--color-chair) !important;
    font-weight: 600;
}

.offset-detail strong {
    color: var(--color-chair);
}

.offset-detail span {
    color: var(--color-accent);
    font-weight: 700;
}

/* ============================================
   🆕 Body Type Table (체형 비교 테이블)
   ============================================ */
.body-type-table {
    background: rgba(47, 47, 56, 0.5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-top: 1rem;
}

.table-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
    margin-bottom: 0.75rem;
}

.comparison-table th {
    text-align: left;
    padding: 0.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.6875rem;
}

.comparison-table td {
    padding: 0.5rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(58, 58, 68, 0.3);
    vertical-align: middle;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.comparison-table .positive {
    color: #22d3ee;
    font-weight: 600;
}

.comparison-table .negative {
    color: #fbbf24;
    font-weight: 600;
}

/* Highlight active profile row */
.comparison-table .highlight-row {
    opacity: 0.5;
    transition: all 200ms ease;
}

.comparison-table .highlight-row.active {
    opacity: 1;
    background: rgba(168, 85, 247, 0.1);
}

.comparison-table .highlight-row.active td {
    color: var(--color-text-primary);
}

.table-note {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    align-items: flex-start;
}

.table-note svg {
    width: 18px;
    height: 18px;
    color: var(--color-chair);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.table-note p {
    font-size: 0.6875rem;
    color: var(--color-text-tertiary);
    line-height: 1.6;
    margin: 0;
}

.table-note strong {
    color: var(--color-text-secondary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 640px) {
    .profile-offsets {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.6875rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.375rem;
    }
}