/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.logout {
    color: var(--danger-color);
}

.user-info {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 1rem 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header .subtitle {
    color: var(--text-muted);
}

.breadcrumb {
    margin-bottom: 1rem;
}

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

.ticket-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
}

.ticket-id {
    font-family: monospace;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

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

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

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

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

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

.btn-block {
    width: 100%;
}

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

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

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

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--card-bg);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* Bootstrap Sign-in Page */
.form-signin {
    width: 100%;
    max-width: 330px;
    padding: 15px;
    margin: auto;
}

.form-signin .form-floating:focus-within {
    z-index: 2;
}

.form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

.alert-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-danger {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Alerts */
.alert {
    padding: 0.875rem 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-in-progress {
    background: #dbeafe;
    color: #1e40af;
}

.status-solved {
    background: #dcfce7;
    color: #166534;
}

.status-on-hold {
    background: #f3f4f6;
    color: #374151;
}

/* Filters Bar */
.filters-bar {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.filters-form {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.search-input,
.status-filter {
    width: 100%;
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

.tickets-summary {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Tables */
.table-container {
    background: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

.tickets-table th,
.tickets-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.tickets-table th {
    background: var(--bg-color);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
}

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

.ticket-subject a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
}

.ticket-subject a:hover {
    color: var(--primary-color);
}

.requester-name {
    font-weight: 500;
}

.requester-email {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.ticket-category {
    text-transform: capitalize;
}

.ticket-date {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.empty-state {
    text-align: center;
    padding: 3rem !important;
}

.empty-message {
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.empty-message p {
    margin: 0;
}

.empty-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.pagination-info {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

.reply-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
}

/* Ticket Detail Layout */
.ticket-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 1.5rem;
}

.ticket-main {
    min-width: 0;
}

.ticket-sidebar {
    min-width: 0;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    display: block;
}

.info-value {
    font-size: 0.875rem;
}

/* Description */
.description-section {
    margin-bottom: 1.5rem;
}

.description-section label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.description-content {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 0.375rem;
    white-space: pre-wrap;
    font-size: 0.875rem;
}

/* Attachments */
.attachment-section label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.attachment-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-color);
    border-radius: 0.375rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
}

.attachment-link:hover {
    background: var(--border-color);
}

/* Replies */
.replies-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.reply {
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.reply-support {
    background: #eff6ff;
    border-color: #bfdbfe;
}

.reply-customer {
    background: var(--bg-color);
}

.reply-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.reply-author {
    font-weight: 600;
    font-size: 0.875rem;
}

.reply-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.reply-body {
    font-size: 0.875rem;
    white-space: pre-wrap;
}

.empty-replies {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .ticket-layout {
        grid-template-columns: 1fr;
    }

    .ticket-sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-content {
        padding: 1rem;
    }

    .filters-form {
        flex-direction: column;
    }

    .filter-group {
        width: 100%;
    }

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

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

    .tickets-table th,
    .tickets-table td {
        padding: 0.625rem 0.5rem;
    }

    .ticket-category,
    .ticket-date {
        display: none;
    }
}