:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --surface-alt: #f0f3f9;
    --border: #e4e8f0;
    --text: #1a1f36;
    --text-muted: #6b7280;
    --primary: #004996;
    --primary-dark: #003872;
    --accent: #00a651;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.2s ease;
}

[data-theme="dark"] {
    --bg: #0f1419;
    --surface: #1a1f2e;
    --surface-alt: #242a3d;
    --border: #2d3548;
    --text: #e8ecf3;
    --text-muted: #9ca3b8;
    --primary: #4a90e2;
    --primary-dark: #3a7bc8;
    --accent: #22c55e;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
}

.theme-toggle {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition);
}

.theme-toggle:hover { background: var(--border); }
[data-theme="light"] .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }

/* Hero */
.hero {
    text-align: center;
    padding: 40px 0 24px;
}

.hero h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.hero p {
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* Filters */
.filters-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    background: var(--surface);
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input {
    width: 100%;
    padding-right: 28px;
}

.input-suffix {
    position: absolute;
    right: 12px;
    color: var(--text-muted);
    font-weight: 600;
    pointer-events: none;
}

.filter-group input,
.filter-group select {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition);
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 73, 150, 0.12);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.summary-card .card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 8px;
}

.summary-card .card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.summary-card .card-detail {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.summary-card.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-color: transparent;
    color: #fff;
}

.summary-card.highlight .card-label,
.summary-card.highlight .card-value,
.summary-card.highlight .card-detail {
    color: #fff;
}

.summary-card.highlight .card-label { opacity: 0.85; }
.summary-card.highlight .card-detail { opacity: 0.9; }

/* Banks Grid */
.banks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.bank-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 14px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.bank-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--bank-color, var(--primary));
}

.bank-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--bank-color, var(--primary));
}

.bank-card-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
}

.bank-name-wrap {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
}

.bank-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.bank-logo {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.02em;
}

.bank-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
    padding: 4px;
}

.bank-logo-fallback {
    display: none;
}

.bank-logo.no-img .bank-logo-fallback {
    display: block;
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.modal-header .bank-logo {
    width: 56px;
    height: 56px;
    font-size: 1.15rem;
}

.modal-header h3 {
    font-size: 1.4rem;
    margin: 0;
    letter-spacing: -0.02em;
}

.modal-header .modal-subtitle {
    margin: 2px 0 0;
}

.bank-type-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    background: var(--surface-alt);
    color: var(--text-muted);
}

.bank-type-badge[data-type="Kamu"] { background: rgba(0, 73, 150, 0.12); color: var(--primary); }
.bank-type-badge[data-type="Özel"] { background: rgba(229, 57, 53, 0.12); color: #e53935; }
.bank-type-badge[data-type="Katılım"] { background: rgba(0, 166, 81, 0.12); color: var(--accent); }

.bank-amount {
    font-size: 2rem;
    font-weight: 800;
    color: var(--bank-color, var(--primary));
    letter-spacing: -0.02em;
    line-height: 1;
}

.bank-amount-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.bank-extras {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.extra-chip {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: var(--surface-alt);
    color: var(--text-muted);
    border-radius: 999px;
    border: 1px solid var(--border);
}

.bank-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.bank-card-footer strong { color: var(--text); }

/* Info Section */
.info-section {
    margin: 40px 0;
}

.info-section h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.info-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.info-card h4 {
    font-size: 1.05rem;
    margin-bottom: 8px;
    color: var(--primary);
}

.info-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Disclaimer */
.disclaimer {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin: 24px 0 40px;
}

.disclaimer p {
    font-size: 0.9rem;
    color: var(--text);
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active { display: flex; }

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 28px;
    border: 1px solid var(--border);
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition);
}

.modal-close:hover { background: var(--border); }

.modal-body h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.modal-body .modal-subtitle {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.tier-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.95rem;
}

.tier-table th,
.tier-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.tier-table th {
    background: var(--surface-alt);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tier-table tr.highlighted td {
    background: rgba(0, 73, 150, 0.08);
    font-weight: 700;
}

.modal-section {
    margin-top: 16px;
}

.modal-section h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 6px;
}

.modal-section p { font-size: 0.95rem; }

.extras-list {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.extras-list li {
    font-size: 0.9rem;
    line-height: 1.45;
    padding: 8px 12px 8px 32px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    position: relative;
}

.extras-list li::before {
    content: "✓";
    position: absolute;
    left: 12px;
    top: 8px;
    color: var(--accent);
    font-weight: 700;
}

.breakdown-list {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.breakdown-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    font-size: 0.92rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

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

.breakdown-list .bd-label {
    color: var(--text-muted);
    flex: 1;
}

.breakdown-list .bd-amount {
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
}

.breakdown-list li.bd-total {
    background: var(--surface-alt);
    font-weight: 700;
}

.breakdown-list li.bd-total .bd-label {
    color: var(--text);
    font-weight: 700;
}

.breakdown-list li.bd-total .bd-amount {
    color: var(--primary);
    font-size: 1.05rem;
}

.bd-note {
    margin-top: 6px;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
}

.modal-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.contact-btn {
    flex: 1;
    min-width: 140px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-alt);
    color: var(--text);
    text-decoration: none;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
}

.contact-btn:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.contact-btn.primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.contact-btn.primary:hover { background: var(--primary-dark); }

/* Responsive */
@media (max-width: 640px) {
    .hero { padding: 24px 0 12px; }
    .banks-grid { grid-template-columns: 1fr; }
    .summary-cards { grid-template-columns: 1fr 1fr; }
    .summary-card .card-value { font-size: 1.35rem; }
    .bank-amount { font-size: 1.75rem; }
    .logo h1 { font-size: 1.25rem; }
}