/* Destek Talep Sistemi - Ana CSS */
/* Mobil öncelikli responsive tasarım */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    padding: 15px 0;
    box-shadow: var(--box-shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo h1 {
    font-size: 20px;
    font-weight: 600;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.user-name {
    font-size: 14px;
}

/* Navigation */
.nav {
    background: white;
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

.nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    padding: 0;
}

.nav li {
    flex: 1;
    min-width: 120px;
}

.nav a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.nav a:hover,
.nav a.active {
    background: var(--light-color);
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: #0056b3;
}

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

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

.btn-warning {
    background: var(--warning-color);
    color: #333;
}

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

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    border-bottom: 2px solid var(--light-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.card-header h2 {
    font-size: 20px;
    color: var(--dark-color);
}

.card-body {
    padding: 0;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    background: white;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead {
    background: var(--light-color);
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    font-weight: 600;
    color: var(--dark-color);
}

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

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

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    white-space: nowrap;
}

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

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

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

.badge-warning {
    background: var(--warning-color);
    color: #333;
}

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

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

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 400px;
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 24px;
    color: var(--dark-color);
    margin-bottom: 10px;
}

/* Messages */
.messages-container {
    max-height: 500px;
    overflow-y: auto;
    padding: 20px;
    background: var(--light-color);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.message {
    background: white;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    flex-wrap: wrap;
    gap: 10px;
}

.message-author {
    font-weight: 600;
    color: var(--dark-color);
}

.message-date {
    font-size: 12px;
    color: var(--secondary-color);
}

.message-admin {
    background: #e3f2fd;
    border-left: 4px solid var(--primary-color);
}

.message-user {
    background: white;
    border-left: 4px solid var(--success-color);
}

.message-body {
    color: #333;
    line-height: 1.6;
}

/* File attachments */
.file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--light-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
}

.file-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.file-item a:hover {
    text-decoration: underline;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--secondary-color);
}

/* Utility classes */
.text-center {
    text-align: center;
}

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

.mb-10 {
    margin-bottom: 10px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-20 {
    margin-top: 20px;
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-10 {
    gap: 10px;
}

.flex-wrap {
    flex-wrap: wrap;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .nav ul {
        flex-direction: column;
    }

    .nav li {
        width: 100%;
        min-width: auto;
    }

    .table {
        font-size: 14px;
    }

    .table th,
    .table td {
        padding: 8px;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .btn-sm {
        width: auto;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 15px;
    }

    .login-box {
        padding: 25px;
    }

    .message-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .logo h1 {
        font-size: 18px;
    }

    .card-header h2 {
        font-size: 18px;
    }

    .table {
        display: block;
        overflow-x: auto;
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

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

/* Buton disabled durumu */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}