/* ================================================================
   İstasyon Haberleşme Takip Sistemi v2.0
   Geliştirici: İLK-SER Bilişim Servisi
   Web: ilkserbilisim.com
   ================================================================ */

/* ========== CSS DEĞİŞKENLER (LIGHT TEMA) ========== */
:root,
[data-theme="light"] {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-rgb: 37, 99, 235;

    --success: #16a34a;
    --success-light: #dcfce7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --info: #0891b2;
    --info-light: #cffafe;
    --purple: #7c3aed;
    --purple-light: #f3e8ff;
    --indigo: #6366f1;

    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-sidebar: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --bg-topbar: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: #f8fafc;
    --bg-table-head: #f8fafc;
    --bg-modal-overlay: rgba(0, 0, 0, 0.5);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;

    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

    --sidebar-width: 270px;
    --topbar-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* ========== DARK TEMA ========== */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: linear-gradient(180deg, #020617 0%, #0f172a 100%);
    --bg-topbar: #1e293b;
    --bg-input: #334155;
    --bg-hover: #334155;
    --bg-table-head: #334155;
    --bg-modal-overlay: rgba(0, 0, 0, 0.7);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-light: #475569;

    --border-color: #334155;
    --border-light: #1e293b;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    display: block;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ========== LAYOUT ========== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ========== SIDEBAR ========== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 42px;
    height: 42px;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.sidebar-brand h2 {
    font-size: 15px;
    font-weight: 700;
    color: #f1f5f9;
    line-height: 1.3;
}

.sidebar-brand small {
    font-size: 11px;
    color: #64748b;
    font-weight: 500;
}

/* Sidebar Nav */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.nav-section-title {
    padding: 20px 20px 8px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #475569;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    margin: 2px 8px;
    color: #94a3b8;
    font-size: 13px;
    font-weight: 500;
    border-radius: 10px;
    transition: all var(--transition-fast);
    cursor: pointer;
    gap: 12px;
    position: relative;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
}

.nav-item.active {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: #3b82f6;
    border-radius: 0 3px 3px 0;
}

.nav-item .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 16px;
    flex-shrink: 0;
}

.nav-item .nav-badge {
    margin-left: auto;
    background: #ef4444;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    flex-shrink: 0;
}

.sidebar-dev-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 10px;
    transition: all var(--transition-fast);
    color: #a5b4fc;
    font-size: 12px;
}

.sidebar-dev-link:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
    color: #c7d2fe;
    transform: translateY(-1px);
}

.sidebar-dev-link small {
    display: block;
    font-size: 9px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-dev-link > span:first-child {
    font-size: 18px;
}

/* ========== MAIN CONTENT ========== */
.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin var(--transition-normal), width var(--transition-normal);
}

/* ========== TOP BAR ========== */
.top-bar {
    height: var(--topbar-height);
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background var(--transition-normal), border-color var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--bg-hover);
}

.page-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Notification Badge */
.notification-badge {
    position: relative;
    padding: 8px 12px;
    background: var(--danger-light);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.notif-count {
    font-size: 11px;
    font-weight: 700;
    color: var(--danger);
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--bg-hover);
    transform: rotate(20deg);
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
}

.user-menu:hover {
    background: var(--bg-hover);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.user-role {
    font-size: 11px;
    color: var(--text-muted);
}

.dropdown-arrow {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: calc(var(--topbar-height) - 4px);
    right: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    z-index: 300;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.dropdown-item.text-danger {
    color: var(--danger);
}

.dropdown-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 4px 0;
}

/* ========== PAGE CONTENT ========== */
.page-content {
    padding: 24px;
    flex: 1;
}

/* ========== KARTLAR ========== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: 24px;
    transition: background var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.card-header h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.card-body.no-padding {
    padding: 0;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ========== STATS GRID ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    opacity: 0.06;
    transform: translate(20px, -20px);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-card .stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-card .stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-card .stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-card .stat-icon.yellow { background: var(--warning-light); color: var(--warning); }
.stat-card .stat-icon.purple { background: var(--purple-light); color: var(--purple); }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-card .stat-change {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    margin-top: 8px;
}

.stat-change.up { background: var(--success-light); color: var(--success); }
.stat-change.down { background: var(--danger-light); color: var(--danger); }

/* ========== TABLO ========== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead th {
    background: var(--bg-table-head);
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    font-size: 13px;
    vertical-align: middle;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

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

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

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

/* Row Highlights */
tr.row-ok { background: rgba(22, 163, 74, 0.04); }
tr.row-ok:hover { background: rgba(22, 163, 74, 0.08) !important; }
tr.row-fail { background: rgba(220, 38, 38, 0.04); }
tr.row-fail:hover { background: rgba(220, 38, 38, 0.08) !important; }
tr.row-pending { background: rgba(156, 163, 175, 0.04); }

/* ========== BADGE ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    gap: 4px;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.badge.green { background: var(--success-light); color: #15803d; }
.badge.red { background: var(--danger-light); color: #dc2626; }
.badge.yellow { background: var(--warning-light); color: #b45309; }
.badge.blue { background: var(--primary-light); color: #1d4ed8; }
.badge.purple { background: var(--purple-light); color: #7c3aed; }
.badge.gray { background: var(--border-light); color: var(--text-muted); }

.badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}
.badge.green .dot { background: #16a34a; }
.badge.red .dot { background: #dc2626; }
.badge.yellow .dot { background: #f59e0b; }

/* Tip Badge */
.tip-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

/* Status Indicator */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.active {
    background: var(--success);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2);
    animation: statusPulse 2s ease-in-out infinite;
}

.status-dot.inactive {
    background: var(--danger);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.status-dot.pending {
    background: var(--text-muted);
}

@keyframes statusPulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2); }
    50% { box-shadow: 0 0 0 6px rgba(22, 163, 74, 0.1); }
}

/* ========== FORM ELEMENTS ========== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-input);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control-sm {
    padding: 7px 10px;
    font-size: 13px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-inline {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* Color Picker */
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-picker-wrapper input[type="color"] {
    width: 44px;
    height: 36px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 2px;
    background: var(--bg-input);
}

/* ========== TOGGLE SWITCH ========== */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--border-color);
    border-radius: 28px;
    transition: var(--transition-normal);
}

.toggle-slider:before {
    content: "";
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    bottom: 3px;
    left: 3px;
    transition: var(--transition-normal);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--success);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: 6px;
    font-family: inherit;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::after {
    opacity: 1;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.btn-success {
    background: linear-gradient(135deg, #16a34a, #15803d);
    color: #fff;
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: #fff;
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
}

.btn-info {
    background: linear-gradient(135deg, #0891b2, #0e7490);
    color: #fff;
}

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

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

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--text-muted);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-hover);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 24px;
    font-size: 15px;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

.btn-icon.sm {
    width: 30px;
    height: 30px;
}

.btn-group {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ========== ALERT ========== */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: alertSlide 0.3s ease;
    border: 1px solid transparent;
}

@keyframes alertSlide {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success { background: var(--success-light); color: #15803d; border-color: #bbf7d0; }
.alert-danger { background: var(--danger-light); color: #dc2626; border-color: #fecaca; }
.alert-warning { background: var(--warning-light); color: #b45309; border-color: #fde68a; }
.alert-info { background: var(--info-light); color: #0e7490; border-color: #a5f3fc; }

/* ========== MODAL ========== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg-modal-overlay);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s;
}

.modal-overlay.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlide 0.25s ease;
}

@keyframes modalSlide {
    from { transform: scale(0.95) translateY(-20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--bg-hover);
    cursor: pointer;
    font-size: 18px;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger-light);
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

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

/* ========== PROGRESS BAR ========== */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.progress-bar .progress-fill.green { background: linear-gradient(90deg, #22c55e, #16a34a); }
.progress-bar .progress-fill.red { background: linear-gradient(90deg, #f87171, #dc2626); }
.progress-bar .progress-fill.yellow { background: linear-gradient(90deg, #fbbf24, #f59e0b); }
.progress-bar .progress-fill.blue { background: linear-gradient(90deg, #60a5fa, #3b82f6); }
.progress-bar .progress-fill.purple { background: linear-gradient(90deg, #a78bfa, #7c3aed); }

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 56px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-state h4 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}

.empty-state p {
    font-size: 13px;
    margin-bottom: 20px;
}

/* ========== TABS ========== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
    gap: 0;
    overflow-x: auto;
}

.tab-item {
    padding: 12px 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tab-item:hover {
    color: var(--text-secondary);
}

.tab-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ========== SUMMARY BOX ========== */
.summary-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.summary-box:hover {
    box-shadow: var(--shadow-sm);
}

.summary-box .summary-number {
    font-size: 26px;
    font-weight: 800;
    line-height: 1;
}

.summary-box .summary-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* ========== DAILY TABLE ========== */
.daily-table tbody td {
    padding: 8px 12px;
}

.daily-table .note-input {
    width: 100%;
    min-width: 180px;
}

.daily-table .action-select {
    min-width: 170px;
}

/* ========== SEARCH BOX ========== */
.search-box {
    position: relative;
}

.search-box .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: var(--text-muted);
}

.search-box .form-control {
    padding-left: 36px;
}

/* ========== CHART CONTAINER ========== */
.chart-container {
    position: relative;
    padding: 16px;
}

.chart-bar-group {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    height: 200px;
    justify-content: space-around;
    padding: 0 8px;
}

.chart-bar-item {
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    height: 100%;
    justify-content: flex-end;
}

.chart-bar {
    width: 100%;
    max-width: 50px;
    border-radius: 6px 6px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    min-height: 20px;
    transition: all var(--transition-normal);
}

.chart-bar:hover {
    opacity: 0.85;
    transform: scaleY(1.02);
    transform-origin: bottom;
}

.chart-bar.ok { background: var(--success-light); color: var(--success); }
.chart-bar.fail { background: var(--danger-light); color: var(--danger); }
.chart-bar.empty { background: var(--border-light); color: var(--text-muted); }

.chart-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 600;
}

.chart-legend {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 16px;
    font-size: 12px;
    color: var(--text-secondary);
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.chart-legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

/* ========== TIMELINE ========== */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-bottom: 24px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -28px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--bg-card);
    z-index: 1;
}

.timeline-dot.green { background: var(--success); }
.timeline-dot.red { background: var(--danger); }
.timeline-dot.yellow { background: var(--warning); }
.timeline-dot.blue { background: var(--primary); }
.timeline-dot.gray { background: var(--text-muted); }

.timeline-content {
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    border: 1px solid var(--border-color);
}

.timeline-date {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
}

.timeline-text {
    font-size: 13px;
    margin-top: 4px;
    color: var(--text-primary);
}

/* ========== HEATMAP (GitHub Style) ========== */
.heatmap-grid {
    display: flex;
    gap: 3px;
    flex-wrap: wrap;
    padding: 8px;
}

.heatmap-cell {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.heatmap-cell:hover {
    transform: scale(1.3);
    z-index: 5;
}

.heatmap-cell.level-0 { background: var(--border-light); }
.heatmap-cell.level-1 { background: #dcfce7; }
.heatmap-cell.level-2 { background: #86efac; }
.heatmap-cell.level-3 { background: #22c55e; }
.heatmap-cell.level-fail { background: #fca5a5; }
.heatmap-cell.level-fail-high { background: #ef4444; }

.heatmap-cell[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-card);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    white-space: nowrap;
    z-index: 10;
}

/* ========== FOOTER ========== */
.app-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
    margin-top: auto;
}

.footer-brand {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-left {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

.developer-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--indigo) !important;
    font-weight: 700;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    font-size: 12px;
}

.developer-link:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.developer-link .dev-logo {
    width: 14px;
    height: 14px;
}

/* ========== DETAIL PAGE ========== */
.detail-hero {
    background: linear-gradient(135deg, #1e293b, #334155);
    border-radius: var(--radius-lg);
    padding: 32px;
    color: #fff;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.detail-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
}

.detail-hero .hero-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.detail-hero .hero-title {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 4px;
}

.detail-hero .hero-subtitle {
    font-size: 14px;
    color: #94a3b8;
}

.detail-hero .hero-stats {
    display: flex;
    gap: 16px;
    margin-top: 20px;
    position: relative;
    z-index: 1;
}

.hero-stat-box {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    text-align: center;
    min-width: 120px;
}

.hero-stat-box .hero-stat-value {
    font-size: 28px;
    font-weight: 800;
}

.hero-stat-box .hero-stat-label {
    font-size: 11px;
    color: #94a3b8;
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========== GRID LAYOUTS ========== */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

/* ========== CLICKABLE ROW ========== */
.clickable-row {
    cursor: pointer;
}

.clickable-row:hover {
    background: var(--primary-light) !important;
}

/* ========== LIVE SEARCH ========== */
.live-search-container {
    position: relative;
}

#liveSearch {
    width: 100%;
    padding: 10px 14px 10px 36px;
}

.search-results-count {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ========== TOOLTIP ========== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-card);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    animation: tooltipFade 0.15s ease;
}

@keyframes tooltipFade {
    from { opacity: 0; transform: translateX(-50%) translateY(4px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ========== FILE UPLOAD ========== */
.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-hover);
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.file-upload-area .upload-icon {
    font-size: 36px;
    margin-bottom: 8px;
    opacity: 0.6;
}

/* ========== INFO GRID ========== */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.info-item {
    padding: 12px;
    background: var(--bg-hover);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.info-item .info-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 4px;
}

.info-item .info-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ========== COMMENT SECTION ========== */
.comment-item {
    display: flex;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

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

.comment-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}

.comment-body {
    flex: 1;
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.comment-author {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}

.comment-date {
    font-size: 11px;
    color: var(--text-muted);
}

.comment-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========== LOADING ========== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg, var(--border-light) 25%, var(--border-color) 50%, var(--border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

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

/* ========== PRINT ========== */
@media print {
    .sidebar, .top-bar, .btn, .no-print, .app-footer, .mobile-menu-btn,
    .theme-toggle, .user-menu, .user-dropdown, .notification-badge {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
    .page-content {
        padding: 0 !important;
    }
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        break-inside: avoid;
    }
    body {
        background: #fff !important;
        color: #000 !important;
    }
    .stat-card {
        break-inside: avoid;
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .detail-hero .hero-stats { flex-wrap: wrap; }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .mobile-menu-btn {
        display: flex;
    }
    .page-content {
        padding: 16px;
    }
    .top-bar {
        padding: 0 16px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .stat-card {
        padding: 16px;
    }
    .stat-card .stat-value {
        font-size: 22px;
    }
    .user-info {
        display: none;
    }
    .dropdown-arrow {
        display: none;
    }
    .grid-4 {
        grid-template-columns: 1fr 1fr;
    }
    .hero-stat-box {
        min-width: auto;
        flex: 1;
    }
    .detail-hero {
        padding: 20px;
    }
    .detail-hero .hero-title {
        font-size: 20px;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    .footer-brand {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .grid-4 {
        grid-template-columns: 1fr;
    }
    .chart-bar-group {
        height: 150px;
    }
}

/* ========== SIDEBAR OVERLAY (MOBİL) ========== */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
}

.sidebar-overlay.active {
    display: block;
}

/* ========== ANİMASYONLAR ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeInUp 0.4s ease forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }
.animate-in:nth-child(5) { animation-delay: 0.25s; }

/* ========== WATERMARK / BRANDING ========== */
.powered-by {
    position: fixed;
    bottom: 8px;
    right: 12px;
    font-size: 10px;
    color: var(--text-muted);
    opacity: 0.5;
    z-index: 5;
    pointer-events: none;
}

/* ============================================
   v2.1 - YENİ EKLEMELER
   ============================================ */

/* Sunucu saati top bar'da */
.server-time-display {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border: 1px solid #bae6fd;
    color: #0c4a6e;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    font-family: 'Courier New', monospace;
    display: flex;
    align-items: center;
    gap: 4px;
}

[data-theme="dark"] .server-time-display {
    background: rgba(14, 165, 233, 0.1);
    border-color: rgba(14, 165, 233, 0.3);
    color: #38bdf8;
}

/* Mobile responsive - server time gizle */
@media (max-width: 768px) {
    .server-time-display {
        display: none;
    }
}