/**
 * PlanUp - UI Components System
 * Notion-like Minimalist Component Library with Ultra-Smooth Micro-interactions
 */

/* ===================================================
   1. BUTTONS
   =================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    line-height: 1.25;
    white-space: nowrap;
    user-select: none;
    cursor: pointer;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, #1E3A5F 0%, #152B46 100%);
    color: #FFFFFF;
    box-shadow: 0 2px 6px rgba(30, 58, 95, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(30, 58, 95, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #254977 0%, #1A3455 100%);
    box-shadow: 0 4px 14px rgba(30, 58, 95, 0.28);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-medium);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.06);
}

.btn-subtle {
    background-color: transparent;
    color: var(--text-secondary);
}
.btn-subtle:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--text-inverse);
}
.btn-danger:hover {
    background-color: #DC2626;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.38rem 0.75rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 0.8rem 1.6rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===================================================
   2. CARDS
   =================================================== */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-xs);
    position: relative;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.25s ease;
}

.card-hover:hover {
    border-color: var(--border-medium);
    box-shadow: 0 8px 20px -3px rgba(15, 23, 42, 0.07);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.15rem;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.015em;
}

.card-subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* Stat Widget Card */
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: 1.25rem 1.35rem;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.03), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.25s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px -4px rgba(15, 23, 42, 0.09);
    border-color: rgba(191, 219, 254, 0.9);
}

.stat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
}

.stat-icon-wrap {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    color: var(--accent-navy);
    flex-shrink: 0;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.stat-card:hover .stat-icon-wrap {
    transform: scale(1.08);
}

.stat-arrow-hint {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0;
    transform: translateX(-4px);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.stat-card:hover .stat-arrow-hint {
    opacity: 1;
    transform: translateX(0);
    color: var(--accent-navy);
}

.stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.035em;
    color: var(--text-primary);
    line-height: 1.15;
}

.stat-footnote {
    font-size: 0.76rem;
    color: var(--text-muted);
    line-height: 1.35;
}

/* Stat Theme Top Accents */
.stat-card-theme-navy::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1E3A5F, #3B82F6);
}
.stat-card-theme-rose::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #E11D48, #FB7185);
}
.stat-card-theme-violet::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #7C3AED, #A855F7);
}
.stat-card-theme-emerald::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #059669, #10B981);
}

/* ===================================================
   3. FORMS & INPUTS
   =================================================== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.1rem;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-label-hint {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 0.3rem;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.65rem 0.9rem;
    font-size: 0.875rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent-navy);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
    background-color: #FFFFFF;
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

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

.input-password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    padding: 4px;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.form-checkbox input[type="checkbox"] {
    accent-color: var(--accent-navy);
    width: 17px;
    height: 17px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.form-checkbox:hover input[type="checkbox"] {
    transform: scale(1.08);
}

/* ===================================================
   4. BADGES
   =================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.22rem 0.65rem;
    border-radius: var(--radius-full);
    line-height: 1.25;
    letter-spacing: 0.015em;
    white-space: nowrap;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
}

/* Soft Semantic Badges */
.badge-pending {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

.badge-in_progress {
    background-color: var(--info-light);
    color: var(--info-text);
    border: 1px solid var(--info-border);
}

.badge-completed {
    background-color: var(--success-light);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

.badge-overdue {
    background-color: var(--danger-light);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

/* Priority Badges */
.badge-priority-low {
    background: #F1F5F9;
    color: #475569;
}
.badge-priority-medium {
    background: var(--warning-light);
    color: var(--warning-text);
    border: 1px solid var(--warning-border);
}
.badge-priority-high {
    background: var(--danger-light);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

/* ===================================================
   5. PROGRESS BARS
   =================================================== */
.progress-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.progress-track {
    width: 100%;
    height: 7px;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--accent-navy);
    border-radius: var(--radius-full);
    transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.progress-fill.success {
    background-color: var(--success);
}
.progress-fill.warning {
    background-color: var(--warning);
}
.progress-fill.danger {
    background-color: var(--danger);
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ===================================================
   6. TABS
   =================================================== */
.tabs-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: -1px;
}

.tab-btn {
    padding: 0.65rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent-navy);
    font-weight: 700;
    border-bottom-color: var(--accent-navy);
}

/* ===================================================
   7. TABLES (RESPONSIVE & CLEAN)
   =================================================== */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--bg-surface);
    box-shadow: var(--shadow-xs);
}

.app-table {
    width: 100%;
    text-align: left;
    font-size: 0.875rem;
    border-collapse: collapse;
}

.app-table th {
    background-color: #F8FAFC;
    padding: 0.95rem 1.35rem;
    font-weight: 700;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.app-table td {
    padding: 1rem 1.35rem;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    vertical-align: middle;
    line-height: 1.45;
}

.app-table tr:last-child td {
    border-bottom: none;
}

.app-table tbody tr {
    transition: background-color 0.15s ease;
}

.app-table tbody tr:hover td {
    background-color: #F8FAFC;
}

/* ===================================================
   8. MODALS
   =================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    visibility: hidden;
    overflow-y: auto;
    transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 25px 30px -10px rgba(15, 23, 42, 0.15);
    border: 1px solid var(--border-light);
    transform: translateY(16px) scale(0.97);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-card form {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.modal-overlay.active .modal-card {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.015em;
}

.modal-close-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    cursor: pointer;
}
.modal-close-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-shrink: 0;
    background: var(--bg-surface);
}

/* ===================================================
   9. EMPTY STATES
   =================================================== */
.empty-state {
    padding: 3.5rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.empty-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    box-shadow: inset 0 0 0 1px var(--border-subtle);
}

.empty-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.empty-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 380px;
    line-height: 1.5;
    margin-bottom: 1.35rem;
}

/* ===================================================
   10. TOAST NOTIFICATIONS
   =================================================== */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 150;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    max-width: 400px;
    width: calc(100% - 48px);
    pointer-events: none;
}

.toast {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 0.95rem 1.15rem;
    box-shadow: 0 12px 24px -4px rgba(15, 23, 42, 0.12);
    display: flex;
    align-items: center;
    gap: 0.85rem;
    pointer-events: auto;
    animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-success {
    border-left: 4px solid var(--success);
}
.toast.toast-error {
    border-left: 4px solid var(--danger);
}
.toast.toast-info {
    border-left: 4px solid var(--info);
}

.toast-msg {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
    line-height: 1.4;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}