/* Modern Professional Design System for Randevu Yönetim Sistemi */

/* Root Variables for Consistent Design */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, #e2e8f0 100%);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    min-height: 100vh;
    margin: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
    box-shadow: var(--shadow-lg);
    border: none;
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: #ffffff !important;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.75rem;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
    margin: 0 0.25rem;
}

.navbar-nav .nav-link:hover {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

/* Main Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    overflow: hidden;
    margin-bottom: 2rem;
}

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

.card-header {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
}

.card-body {
    padding: 2rem;
}

.card-title {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title i {
    color: var(--primary-color);
}

/* Dashboard Cards */
.dashboard-card {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

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

.dashboard-card .card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.dashboard-card .card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.dashboard-card .card-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.dashboard-card .card-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Buttons */
.btn {
    font-weight: 600;
    border-radius: var(--border-radius-md);
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #4338ca 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

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

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

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #2563eb 100%);
    color: white;
}

.btn-info:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

.btn-warning:hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Forms */
.form-control {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

.input-group {
    display: flex;
}

.input-group .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
}

.input-group .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-left: none;
}

/* Tables */
.table {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table th {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: none;
    font-weight: 600;
    color: var(--text-primary);
    padding: 1rem;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.table td {
    border: none;
    padding: 1rem;
    vertical-align: middle;
    color: var(--text-secondary);
}

.table tbody tr {
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background: var(--bg-secondary);
    transform: scale(1.01);
}

.table-striped tbody tr:nth-of-type(odd) {
    background: var(--bg-secondary);
}

/* Badges */
.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-xl);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

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

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

.badge-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #2563eb 100%);
    color: white;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--border-radius-lg);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    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: #059669;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    color: #dc2626;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(217, 119, 6, 0.1) 100%);
    color: #d97706;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.1) 100%);
    color: #2563eb;
    border-left: 4px solid var(--info-color);
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

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

.stats-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

/* Calendar Styles */
.calendar-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.calendar-container .table {
    margin: 0;
}

.calendar-container .table th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    padding: 1.5rem 1rem;
    text-align: center;
}

.calendar-container .table td {
    border: 1px solid var(--border-color);
    padding: 1rem;
    vertical-align: top;
    height: 120px;
    transition: all 0.3s ease;
}

.calendar-container .table td:hover {
    background: var(--bg-secondary);
}

/* Appointment Items in Calendar */
.appointment-item {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.5rem;
    border-radius: var(--border-radius-md);
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

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

.appointment-item.appointment-bekliyor {
    background: linear-gradient(135deg, var(--warning-color) 0%, #d97706 100%);
}

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

.modal-header {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border-bottom: 1px solid var(--border-color);
    border-top-left-radius: var(--border-radius-xl);
    border-top-right-radius: var(--border-radius-xl);
    padding: 1.5rem 2rem;
}

.modal-title {
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    border-bottom-left-radius: var(--border-radius-xl);
    border-bottom-right-radius: var(--border-radius-xl);
}

/* Search and Filter Styles */
.search-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.filter-toggle {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #0891b2 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-toggle:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem 0.5rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .dashboard-card {
        padding: 1.5rem;
    }

    .dashboard-card .card-value {
        font-size: 2rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    .table-responsive {
        font-size: 0.875rem;
    }

    .calendar-container .table td {
        height: 100px;
        padding: 0.5rem;
    }

    .appointment-item {
        font-size: 0.7rem;
        padding: 0.375rem;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 13px;
    }

    .container {
        padding: 0.5rem 0.25rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .dashboard-card .card-value {
        font-size: 1.75rem;
    }

    .calendar-container .table td {
        height: 80px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .theme-toggle {
        display: none !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    body {
        background: white;
    }
}

/* Mobile Responsiveness Improvements */
@media (max-width: 768px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .table-responsive {
        font-size: 0.85rem;
    }

    .stats-number {
        font-size: 1.5em !important;
    }

    /* Calendar mobile improvements */
    .calendar-container .table th,
    .calendar-container .table td {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .calendar-container .table td {
        height: 300px !important;
    }

    /* Appointment cards on mobile */
    .calendar-container .mb-2 {
        margin-bottom: 0.5rem !important;
        padding: 0.5rem !important;
        font-size: 0.75rem;
    }

    /* Dashboard cards mobile layout */
    .row .col-md-3 {
        margin-bottom: 1rem;
    }

    /* Navigation improvements */
    .navbar-nav {
        margin-top: 10px;
    }

    .navbar-nav .nav-link {
        padding: 0.5rem;
        font-size: 0.9rem;
    }

    /* Form improvements */
    .form-group {
        margin-bottom: 1rem;
    }

    /* Modal improvements */
    .modal-dialog {
        margin: 0.5rem;
    }

    /* Alert improvements */
    .alert {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 13px;
    }

    .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    h2 {
        font-size: 1.5rem;
    }

    h5 {
        font-size: 1.1rem;
    }

    .calendar-container .table td {
        height: 250px !important;
    }

    .calendar-container .mb-2 {
        font-size: 0.7rem;
        padding: 0.4rem !important;
    }

    /* Stack dashboard cards vertically on very small screens */
    .row .col-md-3 {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 1rem;
    }
}

/* Touch-friendly buttons */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid #000;
    }

    .btn-primary {
        background-color: #000;
        border-color: #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark Mode Styles */
body.dark-mode {
    background-color: #1a1a1a;
    color: #e9ecef;
}

.dark-mode .navbar {
    background-color: #343a40 !important;
    border-bottom: 1px solid #495057;
}

.dark-mode .navbar-brand,
.dark-mode .navbar-nav .nav-link {
    color: #e9ecef !important;
}

.dark-mode .navbar-nav .nav-link:hover {
    color: #fff !important;
}

.dark-mode .card {
    background-color: #2d3436;
    border-color: #495057;
    color: #e9ecef;
}

.dark-mode .card-header {
    background-color: #343a40;
    border-bottom-color: #495057;
    color: #e9ecef;
}

.dark-mode .card-title {
    color: #e9ecef;
}

.dark-mode .form-control {
    background-color: #495057;
    border-color: #6c757d;
    color: #e9ecef;
}

.dark-mode .form-control:focus {
    background-color: #495057;
    border-color: #007bff;
    color: #e9ecef;
}

.dark-mode .form-label {
    color: #e9ecef;
}

.dark-mode .btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.dark-mode .btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

.dark-mode .btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
}

.dark-mode .btn-outline-primary {
    color: #007bff;
    border-color: #007bff;
}

.dark-mode .btn-outline-primary:hover {
    background-color: #007bff;
    border-color: #007bff;
}

.dark-mode .table {
    color: #e9ecef;
}

.dark-mode .table th {
    background-color: #343a40;
    border-color: #495057;
    color: #e9ecef;
}

.dark-mode .table td {
    background-color: #2d3436;
    border-color: #495057;
}

.dark-mode .table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.05);
}

.dark-mode .alert {
    background-color: #343a40;
    border-color: #495057;
    color: #e9ecef;
}

.dark-mode .alert-success {
    background-color: #155724;
    border-color: #155724;
}

.dark-mode .alert-danger {
    background-color: #721c24;
    border-color: #721c24;
}

.dark-mode .alert-info {
    background-color: #0c5460;
    border-color: #0c5460;
}

.dark-mode .badge {
    color: #fff;
}

.dark-mode .text-muted {
    color: #adb5bd !important;
}

.dark-mode .calendar-container {
    background-color: #2d3436;
    border: 1px solid #495057;
}

.dark-mode .stats-card {
    background-color: #2d3436;
    border: 1px solid #495057;
}

/* Dark mode toggle button */
.theme-toggle {
    background: none;
    border: none;
    color: #e9ecef;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    position: relative;
    z-index: 1050;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.dark-mode .theme-toggle {
    color: #e9ecef;
}

.dark-mode .theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.calendar-container {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    color: white;
    font-size: 0.8em;
}

.form-container {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stats-card {
    text-align: center;
    padding: 20px;
}

.stats-number {
    font-size: 2em;
    font-weight: bold;
    color: #007bff;
}