/* 주택청약 가점 계산기 스타일 */

/* ===== 1. CSS Variables ===== */
:root {
    /* Colors - Housing Theme (Indigo) */
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --primary-dark: #3730A3;
    --secondary-color: #6C757D;
    --success-color: #10B981;
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --info-color: #6366F1;

    /* Brand (ad-slot 그라디언트용) */
    --brand: #4F46E5;
    --brand-dark: #3730A3;
    --brand-light: #EEF2FF;

    /* Backgrounds */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-hover: #F1F5F9;

    /* Text */
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;

    /* Borders */
    --border-color: #E2E8F0;
    --border-radius: 12px;
    --border-radius-sm: 8px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow: 0 4px 16px rgba(79, 70, 229, 0.18);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 32px;
}

/* ===== 2. Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== 3. Layout ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.layout-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.main-column {
    min-width: 0;
}

/* ===== 4. Header ===== */
.main-header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    color: white;
    border-radius: var(--border-radius);
    margin-top: var(--spacing-lg);
    position: relative;
}

.main-header h1 {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.main-header .subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.95;
    margin-bottom: var(--spacing-md);
}

.btn-share-header {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-share-header:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

/* ===== 5. Cards ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.card h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* ===== 6. Form Elements ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.form-group small a {
    color: var(--primary-color);
    text-decoration: none;
}

.form-group small a:hover {
    text-decoration: underline;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* Checkbox Label */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background 0.3s ease;
}

.checkbox-label:hover {
    background: var(--bg-hover);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checkbox-label span {
    font-weight: 500;
}

/* Family Grid */
.family-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.family-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.family-item label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.family-item select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    background-color: var(--bg-card);
    cursor: pointer;
    transition: all 0.3s ease;
}

.family-item select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.family-item small {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Section Divider */
.section-divider {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: var(--spacing-lg) 0;
}

.info-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

/* ===== 7. Buttons ===== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-share {
    background: var(--success-color);
    color: white;
}

.btn-share:hover {
    background: #059669;
}

.btn-large {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
}

/* ===== 8. Result Section ===== */
.result-section {
    animation: fadeInUp 0.5s ease;
}

.result-card {
    background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.result-card h2 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.result-amount {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.amount-value {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
}

.amount-label {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-top: var(--spacing-xs);
}

.score-analysis {
    text-align: center;
    font-size: var(--font-size-lg);
    opacity: 0.95;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
}

/* Result Breakdown */
.result-breakdown {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.breakdown-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.breakdown-value {
    font-weight: 600;
    color: var(--primary-color);
    text-align: right;
}

.breakdown-value span {
    display: block;
    font-size: var(--font-size-lg);
}

.breakdown-value small {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: var(--spacing-xs);
}

/* Suggestions Box */
.suggestions-box {
    background: #EEF2FF;
    border: 2px solid #6366F1;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.suggestions-box h4 {
    color: #3730A3;
    margin-bottom: var(--spacing-sm);
}

.suggestions-box ul {
    margin-left: var(--spacing-lg);
}

.suggestions-box li {
    color: #3730A3;
    margin-bottom: var(--spacing-xs);
}

/* Warning Box */
.warning-box {
    background: #FEF3C7;
    border: 2px solid #F59E0B;
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.warning-box h4 {
    color: #92400E;
    margin-bottom: var(--spacing-sm);
}

.warning-box p {
    color: #92400E;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.warning-box a {
    color: #92400E;
    font-weight: 600;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.action-buttons .btn {
    flex: 1;
}

/* History Section */
.history-section {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.history-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.history-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.history-item:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.history-date {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.history-info {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.history-score {
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--primary-color);
}

/* ===== 9. Info Section ===== */
.info-section {
    margin-top: var(--spacing-xl);
}

.info-section h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.info-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.info-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.info-card h4 {
    font-size: var(--font-size-base);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.info-card p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.info-card ul,
.info-card ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.info-card li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.info-card a {
    color: var(--primary-color);
    text-decoration: none;
}

.info-card a:hover {
    text-decoration: underline;
}

.tip-card {
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
    border-left-color: #6366F1;
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

.score-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    background: var(--bg-card);
}

.score-table thead {
    background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    color: white;
}

.score-table th {
    padding: var(--spacing-md);
    text-align: center;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.score-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: center;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.score-table tbody tr:hover {
    background: var(--bg-hover);
}

.category-row {
    background: var(--bg-secondary) !important;
}

.category-row td {
    font-weight: 600;
    color: var(--primary-color) !important;
    text-align: left !important;
    padding: var(--spacing-md) !important;
}

.highlight-row {
    background: #FEF3C7 !important;
}

.highlight-row td {
    font-weight: 600;
}

.total-col {
    background: #EEF2FF !important;
    color: var(--primary-color) !important;
    font-weight: 700 !important;
    font-size: var(--font-size-base) !important;
}

.table-note {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
}

.table-note p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.table-note ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.table-note li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.warning-text {
    color: var(--warning-color) !important;
    font-weight: 500;
    margin-top: var(--spacing-sm);
}

/* ===== 10. FAQ Section ===== */
.faq-section {
    margin-top: var(--spacing-xl);
}

.faq-section h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-item summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    user-select: none;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::before {
    content: '▶';
    display: inline-block;
    margin-right: var(--spacing-sm);
    transition: transform 0.3s ease;
    color: var(--primary-color);
}

.faq-item[open] summary::before {
    transform: rotate(90deg);
}

.faq-item[open] summary {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.faq-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.faq-item a:hover {
    text-decoration: underline;
}

/* ===== 11. Sidebar ===== */
.app-sidebar {
    position: sticky;
    top: var(--spacing-lg);
    max-height: calc(100vh - var(--spacing-xl));
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.app-sidebar::-webkit-scrollbar {
    display: none;
}

.sidebar-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.sidebar-list {
    list-style: none;
}

.sidebar-list li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-list a {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    transition: background 0.2s ease;
}

.sidebar-list a:hover {
    background: var(--bg-hover);
}

.link-content {
    flex: 1;
    min-width: 0;
}

.link-title {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.link-desc {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== 12. Ads ===== */
.ad-container {
    margin: var(--spacing-lg) 0;
    text-align: center;
}

.top-ad {
    margin-bottom: 2rem;
}

.middle-ad {
    margin: 2rem 0;
    clear: both;
    width: 100%;
}

.bottom-ad {
    margin-top: 2rem;
}

/* ===== 광고 슬롯 시스템 (규격 2종) ===== */
.ad-slot {
  display: block;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  background: linear-gradient(135deg, #4F46E5, #3730A3);
  color: #fff;
  position: relative;
  transition: transform .15s, box-shadow .15s;
  box-shadow: var(--shadow-sm);
}
.ad-slot:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.ad-slot.banner-wide { aspect-ratio: 4/1; max-width: 800px; margin: 20px auto; }
.ad-slot.banner-square { aspect-ratio: 1/1; max-width: 320px; margin: 20px auto; }
.ad-slot .ad-inner {
  position: absolute; inset: 0;
  padding: 16px 22px;
  display: flex; flex-direction: column; justify-content: center;
  background: rgba(0,0,0,0);
}
.ad-slot.has-image .ad-inner {
  background: linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.25) 60%, rgba(0,0,0,0) 100%);
}
.ad-slot.banner-square .ad-inner {
  padding: 18px;
  background: linear-gradient(180deg, rgba(0,0,0,.15) 0%, rgba(0,0,0,.55) 100%);
  justify-content: flex-end;
}
.ad-slot img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover; z-index: 0;
}
.ad-slot .ad-inner { z-index: 1; }
.ad-slot .ad-label {
  position: absolute; top: 6px; right: 10px;
  font-size: 10px; font-weight: 700;
  color: rgba(255,255,255,.7);
  background: rgba(0,0,0,.25);
  padding: 2px 6px; border-radius: 4px;
  z-index: 2;
}
.ad-slot .ad-title { font-size: 18px; font-weight: 800; line-height: 1.3; letter-spacing: -.2px; }
.ad-slot.banner-square .ad-title { font-size: 17px; }
.ad-slot .ad-subtitle { font-size: 13px; opacity: 0.9; margin-top: 2px; }
.ad-slot .ad-cta {
  display: inline-block; align-self: flex-start;
  margin-top: 8px;
  padding: 6px 14px;
  background: #fff;
  color: var(--brand-dark);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
@media (max-width: 520px) {
  .ad-slot.banner-wide { aspect-ratio: 3/1; }
  .ad-slot .ad-title { font-size: 16px; }
  .ad-slot.banner-square { max-width: 300px; }
}

/* ===== 13. Footer ===== */
.main-footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
}

/* ===== 14. Toast ===== */
.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 90%;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ===== 15. Utility Classes ===== */
.hidden {
    display: none !important;
}

/* ===== 16. Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 17. Responsive Design ===== */
@media (max-width: 1024px) {
    .layout-container {
        grid-template-columns: 1fr;
    }

    .app-sidebar {
        position: static;
        max-height: none;
    }
}

@media (max-width: 768px) {
    .main-header h1 {
        font-size: 24px;
    }

    .main-header .subtitle {
        font-size: var(--font-size-base);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .amount-value {
        font-size: 40px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .history-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
}