/* Modern Satınalma Randevu Sistemi CSS */

:root {
    --primary: #1e3a5f;
    --primary-dark: #0d2137;
    --primary-light: #2d5a87;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;
    --dark: #1e293b;
    --light: #f8fafc;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 0.75rem;
    --radius-sm: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    min-height: 100vh;
    color: var(--gray-800);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    backdrop-filter: blur(10px);
    border: none;
    padding: 1rem 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1030;
}

header {
    position: relative;
    z-index: 1030;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.6rem;
}

.navbar .nav-link {
    font-weight: 500;
    padding: 0.6rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    margin: 0 0.15rem;
}

.navbar .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.navbar .dropdown-menu {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
    margin-top: 0.5rem;
    animation: dropdownFade 0.2s ease;
    z-index: 1050;
    position: absolute;
}

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

.navbar .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.navbar .dropdown-item:hover {
    background: var(--gray-100);
    color: var(--gray-800);
    transform: translateX(2px);
}

/* Container */
.container {
    max-width: 1320px;
}

/* Dropdown fix */
.navbar .nav-item.dropdown {
    position: relative;
}

.navbar-collapse {
    overflow: visible;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--white);
    overflow: visible;
    transition: all 0.3s ease;
}

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

.card-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-header.bg-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    border-bottom: none;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    font-weight: 600;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius);
    border: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0a1628 100%);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    color: var(--gray-900);
}

.btn-info {
    background: linear-gradient(135deg, var(--info) 0%, #0891b2 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-500) 0%, var(--gray-600) 100%);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

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

.btn-outline-danger {
    border: 2px solid var(--danger);
    color: var(--danger);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--danger);
    color: white;
}

.btn-outline-secondary {
    border: 2px solid var(--gray-400);
    color: var(--gray-600);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--gray-600);
    color: white;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Forms */
.form-control, .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: var(--white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.35rem;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.input-group-text {
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    border-right: none;
    color: var(--gray-500);
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    border-left: none;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.table thead th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: var(--gray-600);
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--gray-200);
}

.table tbody td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-100);
}

.table tbody tr {
    transition: all 0.15s ease;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table-hover tbody tr:hover {
    background: rgba(30, 58, 95, 0.05);
}

/* Badges */
.badge {
    font-weight: 600;
    padding: 0.5em 1em;
    border-radius: 50px;
    font-size: 0.8rem;
    letter-spacing: 0.3px;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
}

.bg-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%) !important;
}

.bg-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%) !important;
}

.bg-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%) !important;
}

.bg-info {
    background: linear-gradient(135deg, var(--info) 0%, #0891b2 100%) !important;
}

.bg-secondary {
    background: linear-gradient(135deg, var(--gray-500) 0%, var(--gray-600) 100%) !important;
}

.bg-dark {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%) !important;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(217, 119, 6, 0.1) 100%);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(8, 145, 178, 0.1) 100%);
    color: #155e75;
    border-left: 4px solid var(--info);
}

/* Modal */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    padding: 1rem 1.5rem;
}

/* Calendar Styles */
#calendar {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1rem;
}

.fc {
    font-family: inherit;
}

.fc .fc-toolbar-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
}

.fc .fc-button {
    background: var(--primary) !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    padding: 0.5rem 1rem !important;
    text-transform: capitalize !important;
    box-shadow: var(--shadow-sm) !important;
    transition: all 0.2s ease !important;
}

.fc .fc-button:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
}

.fc .fc-button-active {
    background: var(--primary-dark) !important;
}

.fc .fc-daygrid-day {
    transition: all 0.15s ease;
}

.fc .fc-daygrid-day:hover {
    background: var(--gray-50);
}

.fc .fc-daygrid-day-number {
    font-weight: 600;
    color: var(--gray-700);
    padding: 0.5rem;
}

.fc .fc-daygrid-day.fc-day-today {
    background: rgba(30, 58, 95, 0.1) !important;
}

.fc .fc-daygrid-day.fc-day-today .fc-daygrid-day-number {
    background: var(--primary);
    color: white;
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fc .fc-event {
    border: none !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.25rem 0.5rem !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    box-shadow: var(--shadow-sm) !important;
}

.fc .fc-col-header-cell {
    background: var(--gray-100);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: var(--gray-600);
}

/* Page Headers */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--gray-800);
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

h2 i {
    color: var(--primary);
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stats-card .display-4 {
    font-weight: 800;
    font-size: 3rem;
}

.stats-card.bg-primary,
.stats-card.bg-success,
.stats-card.bg-warning,
.stats-card.bg-info,
.stats-card.bg-danger {
    color: white;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    color: var(--gray-400);
    padding: 1.5rem 0;
    margin-top: auto;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.card, .alert {
    animation: fadeIn 0.3s ease;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}

/* Utility Classes */
.shadow-hover {
    transition: all 0.3s ease;
}

.shadow-hover:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.gradient-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Login/Register Cards */
.auth-card {
    max-width: 500px;
    margin: 2rem auto;
}

.auth-card .card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    padding: 2rem;
}

.auth-card .card-header h4 {
    color: white;
    margin: 0;
}

/* Feature Cards (Home) */
.feature-card {
    text-align: center;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card i {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h5 {
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* Loading Spinner */
.spinner-border {
    color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .navbar-brand {
        font-size: 1.2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn {
        padding: 0.5rem 1rem;
    }

    .table thead th,
    .table tbody td {
        padding: 0.75rem;
    }
}

/* ===== Admin Sidebar ===== */
.admin-wrapper {
    display: flex;
    min-height: calc(100vh - 70px);
}

.admin-sidebar {
    width: 250px;
    min-width: 250px;
    background: linear-gradient(180deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--gray-300);
    overflow-y: auto;
    padding: 1rem 0;
}

.admin-sidebar-nav {
    padding: 0.5rem 0;
}

.admin-sidebar .nav-link {
    color: var(--gray-400);
    padding: 0.75rem 1.25rem;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    margin: 0.1rem 0;
}

.admin-sidebar .nav-link i {
    font-size: 1.15rem;
    width: 1.25rem;
    text-align: center;
}

.admin-sidebar .nav-link:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.08);
    border-left-color: var(--gray-500);
}

.admin-sidebar .nav-link.active {
    color: var(--white);
    background: rgba(30, 58, 95, 0.5);
    border-left-color: var(--info);
    font-weight: 600;
}

.admin-content {
    flex-grow: 1;
    padding: 1.5rem 2rem;
    overflow-x: auto;
}

.admin-sidebar-overlay {
    display: none;
}

/* Admin sidebar responsive */
@media (max-width: 991.98px) {
    .admin-sidebar {
        position: fixed;
        top: 0;
        left: -250px;
        height: 100vh;
        z-index: 1040;
        transition: left 0.3s ease;
        padding-top: 70px;
    }

    .admin-sidebar.open {
        left: 0;
    }

    .admin-sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1035;
    }

    .admin-sidebar-overlay.open {
        display: block;
    }

    .admin-content {
        padding: 1rem;
        width: 100%;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment below for dark mode support */
    /*
    body {
        background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
        color: var(--gray-200);
    }

    .card {
        background: var(--gray-800);
        border: 1px solid var(--gray-700);
    }
    */
}