/* ============================================
   Household Task Manager - Main Stylesheet
   ============================================ */

:root {
    --primary: #4f6df5;
    --primary-dark: #3a54d6;
    --secondary: #6c757d;
    --success: #1ea672;
    --danger: #e5484d;
    --warning: #f5a524;
    --info: #17a2b8;

    --low-priority: #17a2b8;
    --medium-priority: #f5a524;
    --high-priority: #fd7e14;
    --urgent-priority: #e5484d;

    --bg: #f3f4f8;
    --surface: #ffffff;
    --surface-alt: #f7f8fb;
    --border: #e2e4ec;
    --text: #202230;
    --text-muted: #6b7080;

    --radius: 0.6rem;
    --radius-lg: 0.9rem;
    --shadow-sm: 0 1px 3px rgba(20, 22, 40, 0.06);
    --shadow-md: 0 6px 20px rgba(20, 22, 40, 0.08);
    --transition: all 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14151f;
        --surface: #1c1e2b;
        --surface-alt: #23253590;
        --border: #33354a;
        --text: #eceefb;
        --text-muted: #9a9db5;
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    }
}

:root[data-theme="dark"] {
    --bg: #14151f;
    --surface: #1c1e2b;
    --surface-alt: #23253590;
    --border: #33354a;
    --text: #eceefb;
    --text-muted: #9a9db5;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
}

:root[data-theme="light"] {
    --bg: #f3f4f8;
    --surface: #ffffff;
    --surface-alt: #f7f8fb;
    --border: #e2e4ec;
    --text: #202230;
    --text-muted: #6b7080;
    --shadow-sm: 0 1px 3px rgba(20, 22, 40, 0.06);
    --shadow-md: 0 6px 20px rgba(20, 22, 40, 0.08);
}

/* ============================================
   Bootstrap component theming
   ============================================ */

.modal-content {
    background-color: var(--surface);
    color: var(--text);
}
.modal-header, .modal-footer {
    border-color: var(--border);
}
@media (prefers-color-scheme: dark) {
    .btn-close { filter: invert(1) grayscale(100%) brightness(200%); }
}
:root[data-theme="dark"] .btn-close { filter: invert(1) grayscale(100%) brightness(200%); }
:root[data-theme="light"] .btn-close { filter: none; }

/* ============================================
   Global Styles
   ============================================ */

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
    transition: background-color 0.2s ease, color 0.2s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 650;
    color: var(--text);
}

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

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

.text-muted { color: var(--text-muted) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }

/* ============================================
   Forms
   ============================================ */

.form-control, .form-select {
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    background-color: var(--surface);
    color: var(--text);
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(79, 109, 245, 0.2);
}

.form-control::placeholder { color: var(--text-muted); opacity: 0.8; }

.form-group { margin-bottom: 1rem; }
.form-label { font-weight: 600; margin-bottom: 0.4rem; color: var(--text); }
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}
.form-text { font-size: 0.85rem; margin-top: 0.25rem; color: var(--text-muted); }

/* ============================================
   Buttons
   ============================================ */

.btn {
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    justify-content: center;
}

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

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

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

.btn-success { background-color: var(--success); color: white; }
.btn-success:hover { background-color: #178a5f; color: white; }

.btn-danger { background-color: var(--danger); color: white; }
.btn-danger:hover { background-color: #cc3a3f; color: white; }

.btn-warning { background-color: var(--warning); color: #29200a; }
.btn-warning:hover { background-color: #e0940f; }

.btn-outline-primary { border: 1.5px solid var(--primary); color: var(--primary); background-color: transparent; }
.btn-outline-primary:hover { background-color: var(--primary); color: white; }

.btn-outline-danger { border: 1.5px solid var(--danger); color: var(--danger); background-color: transparent; }
.btn-outline-danger:hover { background-color: var(--danger); color: white; }

.btn-outline-secondary { border: 1.5px solid var(--border); color: var(--text); background-color: transparent; }
.btn-outline-secondary:hover { background-color: var(--surface-alt); }

.btn-block { display: flex; width: 100%; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.85rem; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1.1rem; }

.theme-toggle {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: white;
    border-radius: 999px;
    width: 2.25rem;
    height: 2.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.theme-toggle:hover { background: rgba(255, 255, 255, 0.15); }

/* ============================================
   Alerts
   ============================================ */

.alert {
    padding: 1rem 1.1rem;
    margin-bottom: 1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
}

.alert-success { background-color: rgba(30, 166, 114, 0.12); border-color: rgba(30, 166, 114, 0.3); color: var(--success); }
.alert-danger { background-color: rgba(229, 72, 77, 0.12); border-color: rgba(229, 72, 77, 0.3); color: var(--danger); }
.alert-warning { background-color: rgba(245, 165, 36, 0.14); border-color: rgba(245, 165, 36, 0.3); color: #9a6103; }
.alert-info { background-color: rgba(23, 162, 184, 0.12); border-color: rgba(23, 162, 184, 0.3); color: var(--info); }
.alert a { font-weight: 600; }

/* ============================================
   Badges
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.65rem;
    font-size: 0.72rem;
    font-weight: 700;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-low { background-color: var(--low-priority); color: white; }
.badge-medium { background-color: var(--medium-priority); color: #33260a; }
.badge-high { background-color: var(--high-priority); color: white; }
.badge-urgent { background-color: var(--urgent-priority); color: white; }

.bg-primary { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--secondary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-info { background-color: var(--info) !important; }

/* ============================================
   Navigation Bar
   ============================================ */

.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, #6f4fd6 100%) !important;
    box-shadow: 0 2px 10px rgba(20, 22, 40, 0.15);
    padding: 0.75rem 0;
}

.navbar-brand { font-weight: 750; font-size: 1.35rem; display: flex; align-items: center; gap: 0.5rem; }
.navbar-nav .nav-link { margin: 0 0.25rem; font-weight: 500; }
.navbar-nav .nav-link.active { color: white !important; font-weight: 700; }

.dropdown-menu {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}
.dropdown-item { padding: 0.65rem 1rem; color: var(--text); }
.dropdown-item:hover { background-color: var(--surface-alt); color: var(--text); }
.dropdown-divider { border-top: 1px solid var(--border); }

/* ============================================
   Cards
   ============================================ */

.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
    background-color: var(--surface-alt);
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}
.card-header h2 { margin: 0; font-size: 1.25rem; }
.card-body { padding: 1.5rem; }
.card-footer { background-color: var(--surface-alt); padding: 1.25rem 1.5rem; border-top: 1px solid var(--border); }

/* ============================================
   Tables
   ============================================ */

.table { width: 100%; margin-bottom: 1rem; border-collapse: collapse; color: var(--text); }
.table thead th {
    background-color: var(--surface-alt);
    border-bottom: 2px solid var(--border);
    padding: 0.9rem 1rem;
    font-weight: 700;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-muted);
}
.table tbody td { padding: 0.9rem 1rem; border-bottom: 1px solid var(--border); }
.table-hover tbody tr:hover { background-color: var(--surface-alt); }

/* ============================================
   Authentication Pages
   ============================================ */

.auth-page {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #4f6df5 0%, #6f4fd6 100%);
    padding: 2rem 0;
}

.auth-container { width: 100%; max-width: 460px; padding: 1rem; }
.auth-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}
.auth-header {
    background: linear-gradient(135deg, #4f6df5 0%, #6f4fd6 100%);
    color: white;
    padding: 1.5rem 2rem;
    text-align: center;
}
.auth-header h1 { margin: 0; font-size: 1.75rem; color: white; }
.auth-header p { margin: 0.4rem 0 0; opacity: 0.92; }
.auth-form { padding: 1.75rem 2rem; }
.auth-form .form-control { height: 45px; padding: 0.75rem; }
.auth-form .btn { height: 45px; font-size: 1rem; }
.auth-footer { padding: 0 2rem 1.75rem; text-align: center; font-size: 0.9rem; }
.auth-footer p { margin-bottom: 0.5rem; }

/* ============================================
   Dashboard
   ============================================ */

.dashboard-container { padding: 2rem 0; }

.dashboard-content {
    background: var(--surface);
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.dashboard-content h1 { margin-bottom: 0.25rem; font-size: 1.6rem; }
.dashboard-section-title { margin: 1.75rem 0 1rem; font-size: 1.2rem; }

/* Clickable overdue/due-soon/completed summary chips at the top of the dashboard */

.dashboard-stats-row { margin-top: 0.5rem; }

.dashboard-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    padding: 1.25rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background-color: var(--surface-alt);
    text-align: center;
    height: 100%;
    transition: var(--transition);
}
a.dashboard-stat-card:hover { box-shadow: var(--shadow-sm); border-color: var(--primary); }

.dashboard-stat-value { font-size: 1.9rem; font-weight: 750; }
.dashboard-stat-label { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

.stat-overdue .dashboard-stat-value { color: var(--danger); }
.stat-due-soon .dashboard-stat-value { color: var(--warning); }
.stat-completed .dashboard-stat-value { color: var(--success); }

/* 3-month "upcoming by category" grid */

.month-summary-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    height: 100%;
}
.month-summary-card h3 { font-size: 1.05rem; margin-bottom: 0.75rem; }

.month-summary-list { list-style: none; margin: 0; padding: 0; }
.month-summary-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--border);
}
.month-summary-list li:last-child { border-bottom: none; }
.month-summary-category { color: var(--text-muted); font-weight: 500; font-size: 0.9rem; }
.month-summary-count {
    font-weight: 700;
    color: var(--primary);
    text-align: right;
}
.month-summary-count small { color: var(--text-muted); font-weight: 500; }

/* Agenda / timeline list of upcoming occurrences, grouped by date */

.agenda-group { margin-top: 1.5rem; }
.agenda-date-heading {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border);
}
.agenda-date-heading .agenda-date-badge {
    color: var(--primary);
}
.agenda-date-heading.is-overdue .agenda-date-badge { color: var(--danger); }

.agenda-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--surface);
    margin-bottom: 0.6rem;
    transition: var(--transition);
}
.agenda-item:hover { box-shadow: var(--shadow-sm); border-color: var(--primary); }

.agenda-item .agenda-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--surface-alt);
    color: var(--primary);
    flex-shrink: 0;
}

.agenda-item .agenda-main { flex: 1; min-width: 0; }
.agenda-item .agenda-main h5 { margin: 0 0 0.15rem; font-size: 1rem; }
.agenda-item .agenda-meta { font-size: 0.85rem; color: var(--text-muted); }
.agenda-item .agenda-actions { display: flex; gap: 0.4rem; flex-shrink: 0; }

/* Task definition cards (view-tasks mobile list) */

.task-list-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow-sm);
}
.task-list-card .task-list-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.task-list-card .task-list-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}
.task-list-card .task-list-card-actions { display: flex; gap: 0.5rem; }

.task-share-badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }
.unshare-btn {
    background: none;
    border: none;
    color: inherit;
    opacity: 0.75;
    padding: 0;
    margin-left: 0.3rem;
    line-height: 1;
    cursor: pointer;
}
.unshare-btn:hover { opacity: 1; }

.task-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.task-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.task-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.task-header h5 { margin: 0; flex: 1; }
.task-body { padding: 1rem; }
.task-body p { color: var(--text-muted); margin-bottom: 0.5rem; }
.task-footer {
    padding: 0.85rem 1rem;
    background-color: var(--surface-alt);
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
}
.task-footer .btn { flex: 1; margin: 0; }

/* ============================================
   Recurrence Picker
   ============================================ */

.recurrence-fields {
    display: none;
    background-color: var(--surface-alt);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-top: 0.75rem;
}
.recurrence-fields.is-active { display: block; }

.recurrence-preview {
    margin-top: 0.75rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius);
    background-color: var(--surface-alt);
    border: 1px solid var(--border);
    font-size: 0.9rem;
}
.recurrence-preview strong { color: var(--text); }
.recurrence-preview ul { margin: 0.4rem 0 0; padding-left: 1.2rem; color: var(--text-muted); }

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .auth-container { max-width: 100%; }
    .form-row { grid-template-columns: 1fr; }
    .navbar-collapse { padding-top: 1rem; }
    table { font-size: 0.9rem; }
    .table thead th, .table tbody td { padding: 0.65rem; }
    .btn-sm { padding: 0.25rem 0.5rem; font-size: 0.75rem; }
}

@media (max-width: 480px) {
    .auth-header { padding: 1.5rem; }
    .auth-header h1 { font-size: 1.4rem; }
    .auth-form { padding: 1.5rem; }
    .auth-footer { padding: 0 1.5rem 1rem; }
    .dashboard-container { padding: 1rem 0; }
    .dashboard-content { padding: 1rem; }
    .agenda-item { flex-wrap: wrap; }
}

/* ============================================
   Utilities
   ============================================ */

.text-end { text-align: right !important; }
.text-center { text-align: center !important; }
.table-responsive { overflow-x: auto; }