/* ===== TaskManager Styles ===== */

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --info: #3b82f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Navbar ===== */
.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

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

.navbar-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none !important;
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-muted);
}

.nav-link {
    color: var(--text-muted) !important;
    text-decoration: none !important;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text) !important;
}

/* ===== Auth Pages ===== */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.auth-card h1 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 4px;
}

.auth-card h2 {
    text-align: center;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.auth-link {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

.form-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.form-card h2 {
    font-size: 18px;
    margin-bottom: 16px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none !important;
    text-align: center;
}

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

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

.btn-outline-danger {
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
}

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

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.w-100 {
    width: 100%;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 24px 0;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: 8px;
}

/* ===== Filters ===== */
.filters {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 140px;
}

.filter-group input,
.filter-group select {
    padding: 8px 12px;
    font-size: 14px;
}

/* ===== Task List ===== */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.task-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    text-decoration: none !important;
    color: var(--text);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.task-card:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.1);
}

.task-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 6px;
}

.task-card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

.task-card-badges {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.task-card-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.task-date {
    margin-left: auto;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 6px;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.bg-secondary { background: #e2e8f0; color: #475569; }
.bg-primary { background: var(--primary); color: #fff; }
.bg-success { background: var(--success); color: #fff; }
.bg-danger { background: var(--danger); color: #fff; }
.bg-warning { background: var(--warning); color: #fff; }
.bg-info { background: #e0f2fe; color: #0369a1; }
.bg-orange { background: #f97316; color: #fff; }
.text-success { color: var(--success); }
.text-muted { color: var(--text-muted); }

/* ===== Task Detail ===== */
.task-detail {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 24px;
    margin-bottom: 20px;
}

.task-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.task-detail-header h2 {
    font-size: 20px;
    font-weight: 700;
}

.task-detail-badges {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.task-detail-meta {
    margin-bottom: 20px;
}

.meta-row {
    display: flex;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.meta-row:last-child {
    border-bottom: none;
}

.meta-label {
    width: 140px;
    flex-shrink: 0;
    color: var(--text-muted);
    font-weight: 500;
}

.task-description {
    padding: 16px 0;
    border-top: 1px solid var(--border);
    margin-bottom: 16px;
}

.task-description h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.task-description p {
    font-size: 15px;
    line-height: 1.7;
    white-space: pre-wrap;
}

.task-actions {
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.task-actions h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.status-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ===== Comments ===== */
.comments-section {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 24px;
    margin-bottom: 20px;
}

.comments-section h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

.comment-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.comment-form textarea {
    flex: 1;
    min-height: 60px;
    font-size: 14px;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.comment {
    padding: 12px 16px;
    background: var(--bg);
    border-radius: 10px;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 14px;
}

.comment-date {
    font-size: 12px;
    color: var(--text-muted);
}

.comment-body {
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state p {
    font-size: 18px;
    margin-bottom: 20px;
}

/* ===== Alerts ===== */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 16px;
}

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

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

/* ===== Profile ===== */
.profile-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-rows {
    display: flex;
    flex-direction: column;
}

.info-row {
    display: flex;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    width: 140px;
    flex-shrink: 0;
    color: var(--text-muted);
    font-weight: 500;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.stat-card {
    text-align: center;
    padding: 16px;
    background: var(--bg);
    border-radius: 10px;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.tg-instructions {
    padding-left: 20px;
    font-size: 14px;
}

.tg-instructions li {
    margin-bottom: 6px;
}

.tg-instructions code {
    background: var(--bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    border: 1px solid var(--border);
}

/* ===== Admin Table ===== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.admin-table th {
    text-align: left;
    padding: 10px 12px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table tr:hover td {
    background: var(--bg);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .filters {
        flex-direction: column;
    }

    .filter-group {
        min-width: 100%;
    }

    .task-card-meta {
        flex-direction: column;
        gap: 4px;
    }

    .task-date {
        margin-left: 0;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

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

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

    .meta-label {
        width: 100px;
    }

    .task-detail-header {
        flex-direction: column;
    }
}