/* ===========================
   Minimalist PTO Planner Styles
   =========================== */

/* Color Palette */
:root {
    --primary-color: #2c3e50;
    --accent-color: #3b82f6;
    --accent-light: #dbeafe;
    --success-color: #10b981;
    --random-color: #b9b610;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-primary-rem: #d13f3f;
    --text-secondary-rem: #e7e421;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
html, body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--bg-primary) !important;
    box-shadow: var(--shadow);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
}

.navbar-toggler {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.35rem 0.55rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2820, 27, 38, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-brand {
    font-weight: 700 !important;
    font-size: 1.25rem;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.navbar-brand-icon {
    width: 26px;
    height: 26px;
    fill: var(--accent-color);
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary) !important;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

.btn-theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.btn-theme-toggle:hover {
    color: var(--accent-color);
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: var(--bg-primary);
    overflow: hidden;
}

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

/* Stat Card Base */
.card-stat {
    position: relative;
    height: 100%;
}

.card-stat .card-body {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem;
}

.stat-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

.stat-icon i {
    font-size: 1.4rem;
}

.card-stat .stat-label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
    margin: 0;
}

.card-stat .stat-value {
    font-weight: 800;
    font-size: 2rem;
    margin: 0;
    line-height: 1;
}

/* Hero Card - Total Available PTO */
.card-hero {
    background: linear-gradient(135deg, var(--accent-color) 0%, #2563eb 100%);
    border: none;
    color: white;
}

.card-hero .stat-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.card-hero .stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
}

.card-hero .stat-value {
    color: white;
    font-size: 3rem;
}

/* Primary Cards - VL Balance */
.card-primary-vl {
    border-left: 4px solid var(--success-color);
}

.card-primary-vl .stat-icon {
    background: rgba(16, 185, 81, 0.1);
    color: var(--success-color);
}

.card-primary-vl .stat-value {
    color: var(--success-color);
}

/* Primary Cards - SL Balance */
.card-primary-sl {
    border-left: 4px solid var(--random-color);
}

.card-primary-sl .stat-icon {
    background: rgba(95, 16, 185, 0.1);
    color: var(--random-color);
}

.card-primary-sl .stat-value {
    color: var(--random-color);
}

/* Secondary Cards - Remaining */
.card-secondary-remaining {
    border-left: 3px solid var(--border-color);
}

.card-secondary-remaining .stat-icon {
    background: var(--bg-tertiary);
    color: var(--text-secondary-rem);
}

.card-secondary-remaining .stat-value {
    color: var(--text-primary-rem);
}

/* Secondary Cards - Default stats */
.card-secondary {
    border-left: 3px solid var(--border-color);
}

.card-secondary .stat-icon {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.card-secondary .stat-value {
    color: var(--text-primary);
}

/* Accent Cards - Holidays */
.card-accent {
    border-left: 4px solid var(--accent-color);
}

.card-accent .stat-icon {
    background: var(--accent-light);
    color: var(--accent-color);
}

.card-accent .stat-value {
    color: var(--accent-color);
}

/* Warning Cards - Remaining/Planned */
.card-warning {
    border-left: 4px solid var(--warning-color);
}

.card-warning .stat-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.card-warning .stat-value {
    color: var(--warning-color);
}

/* Buttons */
.btn {
    border-radius: 7px;
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    transition: var(--transition);
    border: none;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #2563eb;
    color: white;
    text-decoration: none;
}

.btn-outline-primary {
    border: 1.5px solid var(--accent-color);
    color: var(--accent-color);
    background: var(--bg-primary);
}

.btn-outline-primary:hover {
    background: var(--accent-light);
    text-decoration: none;
}

.btn-outline-secondary {
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
    background: var(--bg-primary);
}

.btn-outline-secondary:hover {
    background: var(--bg-secondary);
    text-decoration: none;
}

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

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

/* Forms */
.form-label {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    display: block;
    font-size: 0.95rem;
}

.form-control,
.form-select {
    border: 1.5px solid var(--border-color);
    border-radius: 7px;
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
    width: 100%;
    box-sizing: border-box;
}

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

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.table th {
    background: var(--bg-tertiary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
    padding: 1rem;
    text-align: left;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table td {
    padding: 1rem;
    border: 1px solid var(--border-color);
}

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

/* Upcoming Events Section */
.upcoming-events {
    margin-bottom: 2rem;
}

.upcoming-events-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.event-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: var(--transition);
}

.event-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.event-date {
    flex-shrink: 0;
    text-align: center;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    min-width: 90px;
}

.event-date-day {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
}

.event-date-month {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.event-details {
    flex-grow: 1;
}

.event-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.event-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.event-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.event-status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.status-planned {
    background: var(--warning-color);
}

.status-approved {
    background: var(--success-color);
}

.event-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}

.empty-state p {
    margin: 0.5rem 0 0 0;
}

/* Calendar */
.calendar-table {
    border-collapse: collapse;
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.calendar-table th {
    background: var(--bg-tertiary);
    padding: 0.75rem 0.5rem;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.5px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.calendar-table td {
    width: 14.28%;
    height: 120px;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    vertical-align: top;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.calendar-day:hover {
    background: rgba(59, 130, 246, 0.05);
}

.calendar-day > div:last-child {
    max-height: 85px;
    overflow: hidden;
}

.day-muted {
    background: var(--bg-secondary);
    opacity: 0.5;
}

.day-number {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
    color: var(--text-primary);
}

.event-chip {
    display: block;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 3px 6px;
    border-radius: 4px;
    margin-bottom: 2px;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    box-sizing: border-box;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0;
}

.legend-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: white;
}

.event-planned {
    background: var(--warning-color);
}

.event-approved {
    background: var(--success-color);
}

.event-holiday {
    background: var(--accent-color);
}

.event-cancelled {
    background: var(--danger-color);
}

.event-used {
    background: var(--text-secondary);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 0;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.95rem;
}

p {
    margin: 0;
}

.text-muted {
    color: var(--text-secondary);
}

.gradient-text {
    color: var(--accent-color);
    font-weight: 800;
}

/* Alerts */
.alert {
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid;
}

.alert-info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

main.container {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

/* Utilities */
.date-details-section {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.shadow-sm {
    box-shadow: var(--shadow) !important;
}

.fw-semibold {
    font-weight: 600;
}

.fw-bold {
    font-weight: 700;
}

/* Responsive */
@media (min-width: 900px) and (max-width: 991.98px) {
    .container,
    .container-md,
    .container-sm {
        max-width: 960px;
    }
}

@media (max-width: 991.98px) {
    .calendar-table th,
    .calendar-table td {
        min-width: 100px;
        font-size: 0.85rem;
        padding: 0.5rem;
    }
    
    .calendar-table td {
        height: 110px;
    }
    
    .card-stat .stat-value {
        font-size: 1.75rem;
    }
    
    .card-hero .stat-value {
        font-size: 2.5rem;
    }
    
    .event-date {
        min-width: 70px;
        padding: 0.5rem;
    }
    
    .event-date-day {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.6rem 0;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .navbar-collapse {
        margin-top: 0.55rem;
        border-top: 1px solid var(--border-color);
        padding-top: 0.5rem;
    }

    .navbar-nav .nav-item {
        width: 100%;
    }

    .navbar-nav .nav-link,
    .navbar-nav .btn-theme-toggle {
        width: 100%;
        padding: 0.55rem 0;
        justify-content: flex-start;
    }

    .dashboard-header {
        margin-bottom: 1rem !important;
    }

    .dashboard-actions {
        width: 100%;
    }

    .dashboard-actions .btn {
        flex: 1;
        text-align: center;
        white-space: nowrap;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    /* Mobile stats cards */
    .card-stat .stat-value {
        font-size: 1.5rem;
    }
    
    .card-hero .stat-value {
        font-size: 2rem;
    }
    
    .card-stat .stat-label {
        font-size: 0.8rem;
    }
    
    .stat-icon {
        width: 35px;
        height: 35px;
    }
    
    .stat-icon i {
        font-size: 1.2rem;
    }
    
    /* Mobile calendar */
    .calendar-table {
        font-size: 0.8rem;
    }
    
    .calendar-table th {
        padding: 0.5rem 0.25rem;
        font-size: 0.65rem;
    }
    
    .calendar-table td {
        height: 80px;
        padding: 0.4rem;
        width: 14.28%;
    }
    
    .day-number {
        font-size: 0.9rem;
        margin-bottom: 0.2rem;
    }
    
    .event-chip {
        font-size: 0.6rem;
        padding: 2px 4px;
        margin-bottom: 1px;
    }
    
    .calendar-legend {
        gap: 0.5rem;
    }
    
    .legend-chip {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    /* Mobile events */
    .upcoming-events-header {
        gap: 0.5rem;
        align-items: center !important;
    }

    .event-item {
        align-items: flex-start;
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    .event-date {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        gap: 0.15rem;
        margin-bottom: 0;
        background: var(--bg-secondary);
        padding: 0.5rem;
        border-radius: 6px;
        min-width: 64px;
    }
    
    .event-date-day {
        font-size: 1.1rem;
    }
    
    .event-meta {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .event-type-badge,
    .event-status-badge {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }
    
    /* Mobile buttons */
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .btn-sm {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    /* Mobile utilities */
    main.container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    /* Date details section */
    .date-details-section {
        padding: 0.75rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.25rem;
    }
    
    .card-stat .stat-value {
        font-size: 1.35rem;
    }
    
    .card-hero .stat-value {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem !important;
    }
    
    .calendar-table td {
        height: 70px;
        padding: 0.3rem;
    }
    
    .day-number {
        font-size: 0.85rem;
    }
    
    .event-chip {
        font-size: 0.55rem;
        padding: 2px 3px;
    }
    
    .dashboard-actions {
        flex-direction: column;
        gap: 0.5rem !important;
    }

    .dashboard-actions .btn {
        width: 100%;
    }
}

/* Dark Mode */
body[data-theme="dark"] {
    background: #0d1117;
    color: #e6edf3;
}

body[data-theme="dark"],
body[data-theme="dark"] .card,
body[data-theme="dark"] .form-control,
body[data-theme="dark"] .form-select {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --border-color: #30363d;
}

body[data-theme="dark"] .navbar {
    background: var(--bg-secondary) !important;
    border-bottom-color: var(--border-color);
}

body[data-theme="dark"] .navbar-toggler {
    border-color: var(--border-color);
}

body[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28230, 237, 243, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

body[data-theme="dark"] .navbar-brand {
    color: #58a6ff !important;
}

body[data-theme="dark"] .nav-link {
    color: var(--text-primary) !important;
}

body[data-theme="dark"] .nav-link:hover {
    color: #58a6ff !important;
}

body[data-theme="dark"] .card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

body[data-theme="dark"] .card-stat h2 {
    color: #58a6ff;
}

body[data-theme="dark"] .form-control,
body[data-theme="dark"] .form-select {
    background: var(--bg-primary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

body[data-theme="dark"] .form-control:focus,
body[data-theme="dark"] .form-select:focus {
    border-color: #58a6ff;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

body[data-theme="dark"] .table th {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

body[data-theme="dark"] .table td,
body[data-theme="dark"] .calendar-table th,
body[data-theme="dark"] .calendar-table td {
    border-color: var(--border-color);
}

body[data-theme="dark"] .table tbody tr:hover {
    background: rgba(88, 166, 255, 0.1);
}

body[data-theme="dark"] .calendar-day:hover {
    background: rgba(88, 166, 255, 0.1);
}

body[data-theme="dark"] .day-muted {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

body[data-theme="dark"] h1,
body[data-theme="dark"] h2,
body[data-theme="dark"] h3,
body[data-theme="dark"] h4,
body[data-theme="dark"] h5,
body[data-theme="dark"] h6,
body[data-theme="dark"] .card-stat p {
    color: var(--text-primary);
}

body[data-theme="dark"] .alert-info {
    background: rgba(88, 166, 255, 0.1);
    border-color: rgba(88, 166, 255, 0.3);
    color: #79c0ff;
}

body[data-theme="dark"] footer {
    background: var(--bg-secondary);
    border-top-color: var(--border-color);
}

body[data-theme="dark"] .date-details-section {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

body[data-theme="dark"] .btn-outline-primary {
    border-color: #58a6ff;
    color: #58a6ff;
}

body[data-theme="dark"] .btn-outline-primary:hover {
    background: rgba(88, 166, 255, 0.15);
}

body[data-theme="dark"] .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-primary);
}

body[data-theme="dark"] .btn-outline-secondary:hover {
    background: var(--bg-secondary);
}

body[data-theme="dark"] .gradient-text {
    color: #58a6ff;
}