/**
 * Main CSS File
 * Bulk Mail System
 * Ana stil dosyası - Admin ve User panelleri için ortak stiller
 */

/* ============================================
   GENEL AYARLAR
   ============================================ */

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

:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #66b3ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white: #ffffff;
    --black: #000000;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-100);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.container-fluid {
    width: 100%;
    padding: 0 15px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    flex: 1;
    padding: 0 15px;
}

.col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 15px;
}

.col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 15px;
}

.col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 0 15px;
}

@media (max-width: 768px) {
    .col-md-4,
    .col-md-6,
    .col-lg-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

.g-3 {
    margin: 0 -0.75rem;
}

.g-3 > * {
    padding: 0 0.75rem;
}

.col-12 { width: 100%; padding: 0 15px; }
.col-6 { width: 50%; padding: 0 15px; }
.col-4 { width: 33.333%; padding: 0 15px; }
.col-3 { width: 25%; padding: 0 15px; }

@media (max-width: 768px) {
    .col-6, .col-4, .col-3 {
        width: 100%;
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 1rem 0;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.navbar-nav a {
    color: var(--gray-700);
    font-weight: 500;
    padding: 0.5rem 0;
}

.navbar-nav a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.5;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--box-shadow);
}

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

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

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

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

.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #5a6268;
    color: var(--white);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
    border-color: var(--success-color);
}

.btn-success:hover {
    background-color: #218838;
    border-color: #218838;
    color: var(--white);
}

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

.btn-danger:hover {
    background-color: #c82333;
    border-color: #c82333;
    color: var(--white);
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--gray-900);
    border-color: var(--warning-color);
}

.btn-warning:hover {
    background-color: #e0a800;
    border-color: #e0a800;
    color: var(--gray-900);
}

.btn-info {
    background-color: var(--info-color);
    color: var(--white);
    border-color: var(--info-color);
}

.btn-info:hover {
    background-color: #138496;
    border-color: #138496;
    color: var(--white);
}

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

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* ============================================
   FORMS
   ============================================ */

.form-group {
    margin-bottom: 1rem;
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.5rem;
}

.form-row > .form-group {
    flex: 1;
    padding: 0 0.5rem;
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-800);
    background-color: var(--white);
    border: 1px solid var(--gray-400);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control:disabled {
    background-color: var(--gray-200);
    opacity: 0.65;
    cursor: not-allowed;
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-valid {
    border-color: var(--success-color);
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.invalid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--danger-color);
}

.valid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--success-color);
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.form-check-input {
    margin-right: 0.5rem;
    cursor: pointer;
}

.form-check-label {
    margin-bottom: 0;
    cursor: pointer;
}

select.form-control {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.5rem;
    background-color: var(--gray-100);
    border-bottom: 1px solid var(--gray-300);
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    background-color: var(--gray-100);
    border-top: 1px solid var(--gray-300);
}

.card-title {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.card-text {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

/* ============================================
   TABLES
   ============================================ */

.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--gray-800);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--gray-300);
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--gray-300);
    background-color: var(--gray-100);
    font-weight: 600;
    color: var(--gray-700);
}

.table tbody tr:hover {
    background-color: var(--gray-100);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table-bordered {
    border: 1px solid var(--gray-300);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--gray-300);
}

.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ============================================
   ALERTS & FLASH MESSAGES
   ============================================ */

.alert {
    position: relative;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.alert-dismissible {
    padding-right: 3rem;
}

.alert-dismissible .close {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.75rem 1.25rem;
    color: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    font-weight: bold;
    opacity: 0.5;
}

.alert-dismissible .close:hover {
    opacity: 1;
}

/* ============================================
   BADGES
   ============================================ */

.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

.badge-lg {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.badge-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.badge-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.badge-success {
    background-color: var(--success-color);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger-color);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning-color);
    color: var(--gray-900);
}

.badge-info {
    background-color: var(--info-color);
    color: var(--white);
}

.badge-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* ============================================
   STATISTICS CARDS
   ============================================ */

.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    margin-bottom: 1.5rem;
}

.stat-card.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #218838 100%);
}

.stat-card.danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #c82333 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #e0a800 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, var(--info-color) 0%, #138496 100%);
}

.stat-card-title {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.25rem;
}

.stat-card-change {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 1rem 0;
    justify-content: center;
}

.pagination li {
    margin: 0 0.25rem;
}

.pagination a,
.pagination span {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--primary-color);
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    text-decoration: none;
}

.pagination a:hover {
    background-color: var(--gray-100);
    border-color: var(--primary-color);
}

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

.pagination .disabled span {
    color: var(--gray-500);
    cursor: not-allowed;
    opacity: 0.65;
}

/* ============================================
   UTILITIES
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }
.text-muted { color: var(--gray-600); }

.bg-primary { background-color: var(--primary-color); }
.bg-success { background-color: var(--success-color); }
.bg-danger { background-color: var(--danger-color); }
.bg-warning { background-color: var(--warning-color); }
.bg-info { background-color: var(--info-color); }
.bg-light { background-color: var(--gray-100); }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }

.flex-wrap { flex-wrap: wrap; }
.flex-grow-1 { flex-grow: 1; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }

.ms-2 { margin-left: 0.5rem; }
.ms-3 { margin-left: 1rem; }
.me-2 { margin-right: 0.5rem; }
.me-3 { margin-right: 1rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

.py-5 { padding-top: 3rem; padding-bottom: 3rem; }

.text-center { text-align: center; }
.text-muted { color: #6c757d; }
.text-success { color: var(--success-color); }
.text-info { color: var(--info-color); }
.text-primary { color: var(--primary-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

.rounded { border-radius: var(--border-radius); }
.shadow { box-shadow: var(--box-shadow); }
.shadow-lg { box-shadow: var(--box-shadow-lg); }

/* ============================================
   LOADING & SPINNER
   ============================================ */

.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.loading {
    text-align: center;
    padding: 2rem;
}

.loading .spinner {
    width: 2rem;
    height: 2rem;
    border-width: 3px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    .navbar-nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .stat-card-value {
        font-size: 1.5rem;
    }
    
    .table-responsive {
        display: block;
        width: 100%;
        overflow-x: auto;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .header,
    .navbar,
    .btn,
    .pagination {
        display: none;
    }
    
    .card {
        border: 1px solid var(--gray-300);
        box-shadow: none;
    }
}