/* ============================================================
   YZ Merkezi — Global Design System & Components (global.css)
   AI Agent Mimari Kuralları Standardı
   ============================================================ */

:root {
    /* ── Renk Paleti (Light) ── */
    --color-primary: #dc2626;
    --color-primary-hover: #b91c1c;
    --color-primary-light: #fef2f2;
    --color-accent: #6366f1;
    --color-accent-hover: #4f46e5;
    --color-success: #10b981;
    --color-success-light: #ecfdf5;
    --color-danger: #ef4444;
    --color-danger-light: #fef2f2;
    --color-warning: #f59e0b;
    --color-warning-light: #fffbeb;
    --color-info: #0ea5e9;
    --color-info-light: #f0f9ff;
    
    /* ── Nötr Renkler ── */
    --color-white: #ffffff;
    --color-black: #0f172a;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* ── Yüzey ve Kenarlıklar ── */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;
    --color-text: #0f172a;
    --color-text-muted: #64748b;

    /* ── Tipografi ── */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* ── Boyutlar & Köşe Yuvarlatma ── */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* ── Gölgeler ── */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* ── Geçişler ── */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Z-Index ── */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-toast: 1090;
}

/* ── Koyu Tema (Dark Mode) ── */
html[data-theme='dark'] {
    --color-bg: #0b0f19;
    --color-surface: #131b2e;
    --color-surface-elevated: #1a243b;
    --color-border: #1e293b;
    --color-border-hover: #334155;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-primary-light: rgba(220, 38, 38, 0.15);
    --color-success-light: rgba(16, 185, 129, 0.15);
    --color-danger-light: rgba(239, 68, 68, 0.15);
    --color-warning-light: rgba(245, 158, 11, 0.15);
    --color-info-light: rgba(14, 165, 233, 0.15);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6);
}

/* ── 1. Kart Bileşeni (.yz-card) ── */
.yz-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
}

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

.yz-card__header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.yz-card__body {
    padding: 1.5rem;
}

.yz-card__footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg);
}

/* ── 2. Buton Bileşeni (.yz-btn) ── */
.yz-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: var(--font-family);
    line-height: 1.25;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

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

.yz-btn--secondary {
    background-color: var(--color-gray-100);
    color: var(--color-gray-800);
    border-color: var(--color-border);
}
.yz-btn--secondary:hover {
    background-color: var(--color-gray-200);
    color: var(--color-black);
}

.yz-btn--danger {
    background-color: var(--color-danger);
    color: var(--color-white);
}
.yz-btn--danger:hover {
    background-color: #dc2626;
    color: var(--color-white);
}

.yz-btn--ghost {
    background-color: transparent;
    color: var(--color-text-muted);
}
.yz-btn--ghost:hover {
    background-color: var(--color-gray-100);
    color: var(--color-text);
}

.yz-btn--sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-xs);
}

.yz-btn--lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
}

/* ── 3. Tablo Bileşeni (.yz-table) ── */
.yz-table-wrapper {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.yz-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
    text-align: left;
}

.yz-table th {
    background-color: var(--color-bg);
    color: var(--color-text-muted);
    font-weight: 600;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--color-border);
}

.yz-table td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

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

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

/* ── 4. Form Bileşenleri (.yz-input, .yz-label vb.) ── */
.yz-form-group {
    margin-bottom: 1.25rem;
}

.yz-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.yz-input,
.yz-textarea,
.yz-select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.yz-input:focus,
.yz-textarea:focus,
.yz-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ── 5. Badge Bileşeni (.yz-badge) ── */
.yz-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.625rem;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.yz-badge--primary { background: var(--color-primary-light); color: var(--color-primary); }
.yz-badge--success { background: var(--color-success-light); color: var(--color-success); }
.yz-badge--danger  { background: var(--color-danger-light); color: var(--color-danger); }
.yz-badge--warning { background: var(--color-warning-light); color: var(--color-warning); }
.yz-badge--info    { background: var(--color-info-light); color: var(--color-info); }

/* ── 6. Alert / Bildirim Bileşeni (.yz-alert) ── */
.yz-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    margin-bottom: 1rem;
    font-size: var(--font-size-sm);
}

.yz-alert--success { background: var(--color-success-light); border-color: rgba(16,185,129,0.3); color: #065f46; }
.yz-alert--danger  { background: var(--color-danger-light); border-color: rgba(239,68,68,0.3); color: #991b1b; }
.yz-alert--warning { background: var(--color-warning-light); border-color: rgba(245,158,11,0.3); color: #92400e; }
.yz-alert--info    { background: var(--color-info-light); border-color: rgba(14,165,233,0.3); color: #075985; }

/* ── 7. Dropdown Bileşeni (.yz-dropdown) ── */
.yz-dropdown {
    position: relative;
    display: inline-block;
}

.yz-dropdown__menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    min-width: 180px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.375rem;
    z-index: var(--z-dropdown);
    display: none;
}

.yz-dropdown.open .yz-dropdown__menu,
.yz-dropdown[data-dropdown-open="true"] .yz-dropdown__menu {
    display: block;
    animation: fadeIn 150ms ease;
}

.yz-dropdown__item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-xs);
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    transition: var(--transition-fast);
}

.yz-dropdown__item:hover {
    background-color: var(--color-bg);
    color: var(--color-primary);
}

/* ── 8. Switch / Toggle Bileşeni (.yz-switch) ── */
.yz-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.yz-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.yz-switch__slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--color-gray-300);
    transition: var(--transition);
    border-radius: 24px;
}

.yz-switch__slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

.yz-switch input:checked + .yz-switch__slider {
    background-color: var(--color-primary);
}

.yz-switch input:checked + .yz-switch__slider:before {
    transform: translateX(20px);
}

/* ── 9. Alt Navigasyon (.yz-subnav) ── */
.yz-subnav {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.yz-subnav__link {
    padding: 0.75rem 1rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.yz-subnav__link:hover {
    color: var(--color-text);
}

.yz-subnav__link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

/* ── 10. Layout, Grid & Spacing Utilities ── */
.yz-flex { display: flex; }
.yz-flex-center { display: flex; align-items: center; justify-content: center; }
.yz-flex-between { display: flex; align-items: center; justify-content: space-between; }
.yz-grid { display: grid; }
.yz-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.yz-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.yz-grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }

.yz-gap-8 { gap: 0.5rem; }
.yz-gap-12 { gap: 0.75rem; }
.yz-gap-16 { gap: 1rem; }
.yz-gap-24 { gap: 1.5rem; }

.yz-mt-8 { margin-top: 0.5rem; }
.yz-mt-16 { margin-top: 1rem; }
.yz-mt-24 { margin-top: 1.5rem; }
.yz-mb-8 { margin-bottom: 0.5rem; }
.yz-mb-16 { margin-bottom: 1rem; }
.yz-mb-24 { margin-bottom: 1.5rem; }

/* ── 11. Animasyonlar ── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* ── 12. Responsive Breakpoint'ler ── */
@media (max-width: 1200px) {
    .yz-grid-4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 1024px) {
    .yz-grid-3, .yz-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
    .yz-grid-2, .yz-grid-3, .yz-grid-4 { grid-template-columns: 1fr; }
    .yz-card__header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

@media (max-width: 480px) {
    .yz-btn { width: 100%; }
}