/**
 * LRN Components - UI Components for the LRN Framework
 * Forms, buttons, cards, alerts, and other interactive elements
 */

/* ==========================================================================
   FORMS
   ========================================================================== */

.form-group {
    margin-bottom: var(--lrn-spacing-lg);
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: var(--lrn-spacing-sm);
    font-weight: var(--lrn-font-weight-medium);
    color: var(--lrn-body-color);
    font-size: 0.95rem;
    transition: color var(--lrn-transition-base);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--lrn-font-size-base);
    font-weight: var(--lrn-font-weight-normal);
    line-height: var(--lrn-line-height-base);
    color: var(--lrn-body-color);
    background-color: var(--lrn-input-bg);
    background-clip: padding-box;
    border: 2px solid var(--lrn-input-border);
    border-radius: var(--lrn-radius-lg);
    transition: border-color var(--lrn-transition-base), 
                box-shadow var(--lrn-transition-base),
                background-color var(--lrn-transition-base),
                transform var(--lrn-transition-base);
    appearance: none;
}

.form-control:focus {
    color: var(--lrn-body-color);
    background-color: var(--lrn-input-bg);
    border-color: var(--lrn-input-focus-border);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    transform: translateY(-1px);
}

.form-control::placeholder {
    color: var(--lrn-text-muted);
    opacity: 1;
}

.input-wrapper {
    position: relative;
}

.input-focus-border {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--lrn-gradient-primary);
    transform: scaleX(0);
    transition: transform var(--lrn-transition-base);
}

.form-control:focus + .input-focus-border {
    transform: scaleX(1);
}

.password-input-container {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--lrn-text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--lrn-radius-sm);
    transition: color var(--lrn-transition-fast);
}

.password-toggle:hover {
    color: var(--lrn-primary);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-block;
    font-weight: var(--lrn-font-weight-medium);
    line-height: var(--lrn-line-height-base);
    color: var(--lrn-body-color);
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: transparent;
    border: 2px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: var(--lrn-font-size-base);
    border-radius: var(--lrn-radius-lg);
    transition: all var(--lrn-transition-base);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--lrn-shadow-md);
}

.btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Button variants */
.btn-primary {
    color: white;
    background: var(--lrn-gradient-primary);
    border-color: var(--lrn-primary);
}

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

.btn-secondary {
    color: var(--lrn-body-color);
    background-color: var(--lrn-secondary);
    border-color: var(--lrn-secondary);
}

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

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

.btn-warning {
    color: var(--lrn-body-color);
    background-color: var(--lrn-warning);
    border-color: var(--lrn-warning);
}

.btn-info {
    color: white;
    background-color: var(--lrn-info);
    border-color: var(--lrn-info);
}

/* Outline buttons */
.btn-outline-primary {
    color: var(--lrn-primary);
    border-color: var(--lrn-primary);
}

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

/* Button sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--lrn-font-size-sm);
    border-radius: var(--lrn-radius-md);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--lrn-font-size-lg);
    border-radius: var(--lrn-radius-xl);
}

/* Special login button */
.btn-login {
    background: var(--lrn-gradient-primary);
    border: none;
    color: white;
    font-weight: var(--lrn-font-weight-semibold);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--lrn-radius-xl);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--lrn-transition-slow);
}

.btn-login:hover::before {
    left: 100%;
}

.btn-loader {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: var(--lrn-bg-overlay);
    background-clip: border-box;
    border: 1px solid var(--lrn-border-color);
    border-radius: var(--lrn-radius-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--lrn-shadow-lg);
    transition: transform var(--lrn-transition-base), box-shadow var(--lrn-transition-base);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--lrn-shadow-lg);
}

.card-body {
    flex: 1 1 auto;
    padding: var(--lrn-spacing-lg);
}

.card-header {
    padding: var(--lrn-spacing-lg) var(--lrn-spacing-lg) 0;
    margin-bottom: 0;
    background-color: transparent;
    border-bottom: 1px solid var(--lrn-border-light);
}

.card-footer {
    padding: 0 var(--lrn-spacing-lg) var(--lrn-spacing-lg);
    background-color: transparent;
    border-top: 1px solid var(--lrn-border-light);
}

/* Login card */
.login-card {
    background: var(--lrn-bg-overlay);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 2;
    max-width: 450px;
    margin: 0 auto;
}

.login-header {
    margin-bottom: 2rem;
}

.logo-container {
    margin-bottom: 1rem;
}

.logo {
    max-height: 60px;
    width: auto;
}

.login-subtitle {
    font-size: 1.5rem;
    font-weight: var(--lrn-font-weight-light);
    color: var(--lrn-text-secondary);
    margin: 0;
}

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--lrn-primary), transparent);
    margin: 1.5rem 0;
}

.login-footer {
    margin-top: 2rem;
    text-align: center;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-link {
    color: var(--lrn-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--lrn-transition-fast);
}

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

.footer-separator {
    margin: 0 1rem;
    color: var(--lrn-text-muted);
}

.version-info {
    font-size: 0.8rem;
    color: var(--lrn-text-muted);
    margin: 0;
}

.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.status-indicator.online {
    background-color: var(--lrn-success);
    box-shadow: 0 0 8px var(--lrn-success);
}

/* ==========================================================================
   ALERTS
   ========================================================================== */

.alert {
    position: relative;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--lrn-radius-lg);
}

.alert-modern {
    display: flex;
    align-items: flex-start;
    padding: 1.25rem;
    border-radius: var(--lrn-radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.alert-icon {
    flex-shrink: 0;
    margin-right: 1rem;
    font-size: 1.25rem;
}

.alert-content {
    flex: 1;
}

.alert-content strong {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: var(--lrn-font-weight-semibold);
}

.alert-content p {
    margin: 0;
    font-size: 0.95rem;
}

.alert-primary {
    color: var(--lrn-primary);
    background-color: rgba(74, 158, 255, 0.1);
    border-color: rgba(74, 158, 255, 0.2);
}

.alert-success {
    color: var(--lrn-success);
    background-color: rgba(40, 167, 69, 0.1);
    border-color: rgba(40, 167, 69, 0.2);
}

.alert-warning {
    color: var(--lrn-warning);
    background-color: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.2);
}

.alert-danger {
    color: var(--lrn-danger);
    background-color: rgba(220, 53, 69, 0.1);
    border-color: rgba(220, 53, 69, 0.2);
}

/* ==========================================================================
   ADMIN DASHBOARD COMPONENTS
   ========================================================================== */

.group-box-4,
.group-box-3 {
    background: rgba(30, 30, 46, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
    padding: 1.5rem;
}

[data-theme="light"] .group-box-4,
[data-theme="light"] .group-box-3 {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.group-box-title {
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.group-box-title h4,
.group-box-title h2 {
    margin: 0;
    color: var(--lrn-text-primary);
    font-weight: var(--lrn-font-weight-semibold);
}

.cell-3 {
    display: inline-block;
    width: calc(25% - 1rem);
    margin: 0.5rem;
    vertical-align: top;
}

.cell-box-3 {
    background: rgba(74, 158, 255, 0.1);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: all var(--lrn-transition-base);
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cell-box-3:hover {
    background: rgba(74, 158, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: var(--lrn-shadow-md);
}

.cell-icon-3 {
    color: var(--lrn-primary);
    margin-bottom: 0.5rem;
}

.cell-title-3 {
    color: var(--lrn-text-primary);
    font-weight: var(--lrn-font-weight-medium);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.cell-3 a {
    text-decoration: none;
    color: inherit;
}

/* ==========================================================================
   TABLES
   ========================================================================== */

.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--lrn-body-color);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--lrn-border-color);
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--lrn-border-color);
    font-weight: var(--lrn-font-weight-semibold);
    background-color: var(--lrn-bg-secondary);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.05);
}

.table-hover tbody tr:hover {
    background-color: rgba(74, 158, 255, 0.1);
}

.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   BADGES
   ========================================================================== */

.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: var(--lrn-font-weight-semibold);
    line-height: 1;
    color: white;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--lrn-radius-md);
}

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

.rounded-pill {
    border-radius: var(--lrn-radius-pill) !important;
}

/* ==========================================================================
   PROGRESS BARS
   ========================================================================== */

.progress {
    display: flex;
    height: 1rem;
    overflow: hidden;
    font-size: 0.75rem;
    background-color: var(--lrn-bg-secondary);
    border-radius: var(--lrn-radius-md);
}

.progress-bar {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    color: white;
    text-align: center;
    white-space: nowrap;
    background-color: var(--lrn-primary);
    transition: width var(--lrn-transition-base);
}

/* ==========================================================================
   RESPONSIVE UTILITIES
   ========================================================================== */

@media (max-width: 767.98px) {
    .cell-3 {
        width: calc(50% - 1rem);
    }
    
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
}

@media (max-width: 575.98px) {
    .cell-3 {
        width: calc(100% - 1rem);
    }
    
    .login-card {
        padding: 1.5rem 1rem;
    }
}

/* ==================== Historic Dates slide-over ==================== */
.hd-slideover {
    position: fixed;
    top: 0;
    right: -480px;
    width: 480px;
    max-width: 90vw;
    height: 100vh;
    background: var(--lrn-bg-secondary, #1a1a1a);
    border-left: 1px solid var(--lrn-border, #333);
    box-shadow: -4px 0 20px rgba(0,0,0,0.4);
    transition: right 0.25s ease;
    z-index: 1500;
    display: flex;
    flex-direction: column;
}
.hd-slideover.open { right: 0; }
.hd-slideover-header {
    padding: 1rem;
    border-bottom: 1px solid var(--lrn-border, #333);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--lrn-bg-primary, #111);
}
.hd-slideover-header h3 { margin: 0; font-size: 1.1rem; }
.hd-slideover-close {
    background: none; border: 0; color: var(--lrn-text-primary, #eee);
    font-size: 1.5rem; cursor: pointer; padding: 0.25rem 0.5rem;
}
.hd-slideover-body {
    flex: 1; overflow-y: auto; padding: 1rem;
}
.hd-category-section { margin-bottom: 1.5rem; }
.hd-category-section h4 {
    font-size: 0.95rem; text-transform: uppercase;
    color: var(--lrn-primary, #4a9eff);
    margin: 0 0 0.5rem 0;
    border-bottom: 1px solid var(--lrn-border, #333);
    padding-bottom: 0.25rem;
}
.hd-entry { margin-bottom: 1rem; }
.hd-entry-headline {
    font-weight: 600;
    color: var(--lrn-text-primary, #eee);
}
.hd-entry-year {
    color: var(--lrn-primary, #4a9eff);
    margin-right: 0.5rem;
}
.hd-entry-body {
    color: var(--lrn-text-secondary, #aaa);
    font-size: 0.9rem;
    margin: 0.25rem 0;
    line-height: 1.45;
}
.hd-entry-source {
    font-size: 0.75rem;
    color: var(--lrn-text-muted, #777);
}
.hd-entry-source a { color: inherit; text-decoration: underline; }
.hd-empty {
    text-align: center;
    color: var(--lrn-text-muted, #777);
    padding: 2rem 1rem;
}
.hd-trigger-btn {
    position: relative;
    cursor: pointer;
}
.hd-trigger-btn .badge {
    background: var(--lrn-primary, #4a9eff);
    color: white;
    border-radius: 10px;
    padding: 0 0.5rem;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

/* Clickable row styling for the historic-dates admin list */
.hd-row {
    cursor: pointer;
    transition: background-color 0.15s ease;
}
.hd-row:hover {
    background-color: var(--lrn-bg-hover, rgba(255,255,255,0.05));
}
.hd-row td {
    /* prevent inner controls' clicks from being treated as row clicks via stopPropagation in the JS handlers */
    user-select: text;
}

/* ==================== Inline weather widget ==================== */
.lrn-weather-widget {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.25rem 0.5rem; border-radius: 4px;
    background: var(--lrn-bg-secondary, rgba(255,255,255,0.04));
    color: var(--lrn-text-primary); text-decoration: none;
    font-size: 0.85rem; line-height: 1.2;
}
.lrn-weather-widget:hover {
    background: var(--lrn-bg-hover, rgba(255,255,255,0.08));
    text-decoration: none;
}
.lrn-weather-icon {
    width: 24px; height: 24px; flex-shrink: 0;
}
.lrn-weather-data {
    display: flex; flex-direction: column; gap: 0.1rem;
}
.lrn-weather-temp {
    font-weight: 600; font-size: 1rem;
}
.lrn-weather-cond {
    color: var(--lrn-text-secondary); font-size: 0.78rem;
}
.lrn-weather-hilo {
    font-size: 0.78rem;
    color: var(--lrn-text-muted);
    margin-left: 0.5rem;
}
.lrn-weather-loc {
    font-size: 0.7rem;
    color: var(--lrn-text-muted);
    margin-left: auto;
}
.lrn-weather-stale { opacity: 0.7; }
.lrn-weather-error {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--lrn-text-muted);
    font-style: italic;
}
@media (max-width: 480px) {
    .lrn-weather-loc { display: none; }
}