/* ===================================================================
   ADMIN PREMIUM DESIGN SYSTEM (Kurumsal SaaS Standardı)
   Bootstrap üzerine ekle, bozma
   =================================================================== */

/* ===== 0) GLOBAL UI DESIGN SYSTEM (Zorunlu) ===== */

:root {
    /* Spacing scale */
    --sp-4: 4px;
    --sp-8: 8px;
    --sp-12: 12px;
    --sp-16: 16px;
    --sp-24: 24px;
    --sp-32: 32px;
    --sp-48: 48px;

    /* Border radius */
    --radius-card: 16px;
    --radius-button: 12px;
    --radius-field: 8px;

    /* Shadows */
    --shadow-normal: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.12);
    --shadow-modal: 0 12px 48px rgba(0, 0, 0, 0.18);

    /* Typography */
    --font-page-title: 700 32px/1.3 'Inter', system-ui;
    --font-section-title: 600 20px/1.4 'Inter', system-ui;
    --font-body: 400 15px/1.6 'Inter', system-ui;
    --font-muted: 500 13px/1.5 'Inter', system-ui;

    /* Colors */
    --color-primary: #B23A2C;
    --color-primary-hover: #9a3224;
    --color-accent: #F2C94C;
    --color-success: #2e7d32;
    --color-warning: #ed6c02;
    --color-error: #c62828;
    --color-text: #2b2b2b;
    --color-text-muted: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;

    /* Transitions */
    --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 1) PAGE HEADER (Premium Header + Toolbar + States) ===== */

.admin-premium-header {
    background: var(--color-bg);
    border-radius: var(--radius-card);
    padding: var(--sp-24);
    margin-bottom: var(--sp-24);
    box-shadow: var(--shadow-normal);
    transition: box-shadow var(--transition-normal);
}

.admin-premium-header:hover {
    box-shadow: var(--shadow-hover);
}

.admin-premium-header-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-16);
    margin-bottom: var(--sp-16);
}

.admin-premium-header-info {
    flex: 1;
    min-width: 0;
}

.admin-premium-header-info h1 {
    font: var(--font-page-title);
    color: var(--color-text);
    margin: 0 0 var(--sp-8) 0;
}

.admin-premium-header-info p {
    font: var(--font-body);
    color: var(--color-text-muted);
    margin: 0;
}

.admin-premium-header-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
    flex-wrap: wrap;
}

/* ===== 2) TOOLBAR (Search + Filter + Primary CTA) ===== */

.admin-premium-toolbar {
    background: var(--color-bg);
    border-radius: var(--radius-card);
    padding: var(--sp-16);
    margin-bottom: var(--sp-16);
    display: flex;
    align-items: center;
    gap: var(--sp-12);
    flex-wrap: wrap;
    box-shadow: var(--shadow-normal);
}

.premium-search-box {
    position: relative;
    flex: 1;
    min-width: 240px;
}

.premium-search-box i {
    position: absolute;
    left: var(--sp-12);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 16px;
    pointer-events: none;
}

.premium-search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-field);
    background: var(--color-bg);
    color: var(--color-text);
    font: var(--font-body);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.premium-search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(178, 58, 44, 0.1);
}

.premium-filter-group {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
    flex-wrap: wrap;
}

.premium-filter-group select {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-field);
    background: var(--color-bg);
    color: var(--color-text);
    font: var(--font-body);
    min-width: 140px;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.premium-filter-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ===== 3) PREMIUM TABLE (Sticky + Zebra + Hover + Badge + Pagination) ===== */

.premium-table-container {
    background: var(--color-bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-normal);
}

.premium-table-wrapper {
    overflow-x: auto;
}

.premium-table {
    width: 100%;
    border-collapse: collapse;
    font: var(--font-body);
}

.premium-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--color-bg-alt);
}

.premium-table thead th {
    padding: var(--sp-16);
    text-align: left;
    font: var(--font-section-title);
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.premium-table tbody tr {
    transition: background-color var(--transition-fast);
}

.premium-table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.015);
}

.premium-table tbody tr:hover {
    background: rgba(178, 58, 44, 0.04);
}

.premium-table tbody td {
    padding: var(--sp-16);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    vertical-align: middle;
}

.premium-table .col-check {
    width: 48px;
    text-align: center;
}

.premium-table .col-actions {
    width: 120px;
    text-align: right;
}

.td-primary {
    font-weight: 600;
    color: var(--color-text);
}

.td-secondary {
    font: var(--font-muted);
    color: var(--color-text-muted);
    margin-top: var(--sp-4);
}

/* ===== 4) PREMIUM BADGE ===== */

.premium-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-4);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.premium-badge-success {
    background: rgba(46, 125, 50, 0.1);
    color: var(--color-success);
}

.premium-badge-warning {
    background: rgba(237, 108, 2, 0.1);
    color: var(--color-warning);
}

.premium-badge-error {
    background: rgba(198, 40, 40, 0.1);
    color: var(--color-error);
}

.premium-badge-primary {
    background: rgba(178, 58, 44, 0.1);
    color: var(--color-primary);
}

.premium-badge-neutral {
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-text-muted);
}

/* ===== 5) PREMIUM PAGINATION ===== */

.premium-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-16);
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: var(--sp-12);
}

.premium-pagination-info {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
    font: var(--font-body);
    color: var(--color-text-muted);
}

.premium-pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
}

.premium-pagination-controls button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-field);
    background: var(--color-bg);
    color: var(--color-text);
    font: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.premium-pagination-controls button:hover:not(:disabled):not(.active) {
    background: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.premium-pagination-controls button.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.premium-pagination-controls button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ===== 6) PREMIUM BUTTONS ===== */

.btn-premium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-8);
    padding: 10px 20px;
    border-radius: var(--radius-button);
    border: none;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-premium:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-premium:active {
    transform: scale(0.97);
}

.btn-premium-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 6px rgba(178, 58, 44, 0.2);
}

.btn-premium-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 12px rgba(178, 58, 44, 0.3);
}

.btn-premium-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-premium-secondary:hover:not(:disabled) {
    background: var(--color-bg-alt);
    border-color: var(--color-primary);
}

.btn-premium-danger {
    background: var(--color-error);
    color: white;
    box-shadow: 0 2px 6px rgba(198, 40, 40, 0.2);
}

.btn-premium-danger:hover:not(:disabled) {
    background: #a12020;
    box-shadow: 0 4px 12px rgba(198, 40, 40, 0.3);
}

.btn-premium:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-premium-sm {
    padding: 6px 14px;
    font-size: 13px;
}

/* ===== 7) PREMIUM EMPTY STATE ===== */

.premium-empty-state {
    text-align: center;
    padding: var(--sp-48) var(--sp-24);
    background: var(--color-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-normal);
}

.premium-empty-icon {
    font-size: 64px;
    color: var(--color-text-muted);
    opacity: 0.2;
    margin-bottom: var(--sp-16);
}

.premium-empty-title {
    font: var(--font-section-title);
    color: var(--color-text);
    margin: 0 0 var(--sp-8) 0;
}

.premium-empty-text {
    font: var(--font-body);
    color: var(--color-text-muted);
    margin: 0 0 var(--sp-24) 0;
}

/* ===== 8) PREMIUM LOADING (Skeleton) ===== */

.premium-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: premium-shimmer 1.5s infinite;
    border-radius: var(--radius-field);
}

@keyframes premium-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.premium-skeleton-row {
    display: flex;
    align-items: center;
    gap: var(--sp-12);
    padding: var(--sp-16);
    border-bottom: 1px solid var(--color-border);
}

.premium-skeleton-cell {
    height: 16px;
}

.premium-skeleton-cell-sm { width: 40px; }
.premium-skeleton-cell-md { width: 120px; }
.premium-skeleton-cell-lg { flex: 1; }

/* ===== 9) PREMIUM TOAST ===== */

.premium-toast-container {
    position: fixed;
    bottom: var(--sp-24);
    right: var(--sp-24);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--sp-8);
}

.premium-toast {
    display: flex;
    align-items: center;
    gap: var(--sp-12);
    min-width: 320px;
    padding: var(--sp-16);
    background: white;
    border-radius: var(--radius-button);
    box-shadow: var(--shadow-modal);
    border-left: 4px solid var(--color-primary);
    animation: premium-toast-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes premium-toast-in {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.premium-toast.toast-success {
    border-left-color: var(--color-success);
}

.premium-toast.toast-error {
    border-left-color: var(--color-error);
}

.premium-toast-icon {
    font-size: 20px;
    color: var(--color-primary);
}

.premium-toast.toast-success .premium-toast-icon {
    color: var(--color-success);
}

.premium-toast.toast-error .premium-toast-icon {
    color: var(--color-error);
}

.premium-toast-message {
    flex: 1;
    font: var(--font-body);
    color: var(--color-text);
}

.premium-toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: var(--sp-4);
    font-size: 16px;
    transition: color var(--transition-fast);
}

.premium-toast-close:hover {
    color: var(--color-text);
}

/* ===== 10) PREMIUM MODAL ===== */

.premium-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    animation: premium-fade-in 0.2s;
}

@keyframes premium-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.premium-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    padding: var(--sp-24);
    animation: premium-fade-in 0.2s;
}

.premium-modal-content {
    background: white;
    border-radius: var(--radius-card);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-modal);
    animation: premium-modal-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes premium-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-16px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.premium-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-24);
    border-bottom: 1px solid var(--color-border);
}

.premium-modal-header h3 {
    font: var(--font-section-title);
    color: var(--color-text);
    margin: 0;
}

.premium-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: var(--sp-4);
    transition: color var(--transition-fast);
}

.premium-modal-close:hover {
    color: var(--color-text);
}

.premium-modal-body {
    padding: var(--sp-24);
}

.premium-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--sp-8);
    padding: var(--sp-16) var(--sp-24);
    border-top: 1px solid var(--color-border);
}

/* ===== 11) PREMIUM FORM ===== */

.premium-form-section {
    margin-bottom: var(--sp-24);
}

.premium-form-section-title {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
    font: var(--font-section-title);
    color: var(--color-text);
    margin-bottom: var(--sp-16);
    padding-bottom: var(--sp-12);
    border-bottom: 1px solid var(--color-border);
}

.premium-form-section-title i {
    color: var(--color-primary);
}

.premium-form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--sp-16);
}

.premium-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--sp-8);
}

.premium-label {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text);
}

.premium-label .required {
    color: var(--color-error);
}

.premium-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-field);
    background: var(--color-bg);
    color: var(--color-text);
    font: var(--font-body);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.premium-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(178, 58, 44, 0.1);
}

.premium-input-error {
    border-color: var(--color-error);
}

.premium-field-hint {
    font: var(--font-muted);
    color: var(--color-text-muted);
}

.premium-field-error {
    font: var(--font-muted);
    color: var(--color-error);
}

/* ===== 12) RESPONSIVE ===== */

@media (max-width: 991px) {
    .admin-premium-header-top {
        flex-direction: column;
    }

    .admin-premium-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .premium-filter-group {
        flex-direction: column;
        align-items: stretch;
    }

    .premium-filter-group select {
        width: 100%;
    }

    .premium-table thead {
        display: none;
    }

    .premium-table tbody tr {
        display: block;
        padding: var(--sp-16);
        border-bottom: 1px solid var(--color-border);
        margin-bottom: var(--sp-8);
    }

    .premium-table tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--sp-8) 0;
        border-bottom: none;
    }

    .premium-table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        font-size: 13px;
        color: var(--color-text-muted);
    }
}

@media (max-width: 575px) {
    .premium-form-row {
        grid-template-columns: 1fr;
    }
}