/* ===================================================
   COMPONENTS — Buttons, Forms, Cards, Toasts, etc.
   =================================================== */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.4);
}

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

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

.btn-secondary:hover { background: var(--border); }

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

.btn-danger:hover { background: #DC2626; }

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

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

.btn-block { width: 100%; }

.btn-icon {
    width: 40px; height: 40px;
    border: none;
    background: none;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 16px;
    flex-shrink: 0;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text);
}

/* --- Forms --- */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.form-group label i {
    width: 18px;
    text-align: center;
    margin-right: 4px;
    color: var(--primary);
}

.optional {
    font-weight: 400;
    color: var(--text-tertiary);
    font-size: 12px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="datetime-local"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

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

.form-error {
    color: var(--danger);
    font-size: 13px;
    padding: 8px 12px;
    background: var(--danger-bg);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.form-success {
    color: var(--success);
    font-size: 13px;
    padding: 10px 14px;
    background: var(--success-bg);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    line-height: 1.5;
}

.form-success i {
    margin-right: 6px;
}

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

.password-input-wrap input {
    padding-right: 44px;
}

.toggle-pw {
    position: absolute;
    right: 8px;
    top: 50%; transform: translateY(-50%);
    border: none;
    background: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px 6px;
}

/* --- Avatar preview --- */
.avatar-preview {
    margin-top: 8px;
    width: 64px; height: 64px;
    border-radius: var(--radius-full);
    background: var(--bg-hover);
    overflow: hidden;
    display: none;
    border: 2px solid var(--border);
}

.avatar-preview img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.avatar-preview.has-image { display: block; }

/* --- Color picker --- */
.color-picker-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.color-swatch {
    width: 36px; height: 36px;
    border-radius: var(--radius-full);
    border: 3px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.color-swatch:hover { transform: scale(1.12); }

.color-swatch.active {
    border-color: var(--text);
    box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px currentColor;
}

.color-swatch.active::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* --- Toggle switch --- */
.toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.switch {
    position: relative;
    width: 44px; height: 24px;
    display: inline-block;
}

.switch input { display: none; }

.switch .slider {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.switch .slider::before {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    left: 3px; top: 3px;
    background: #fff;
    border-radius: 50%;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.switch input:checked + .slider {
    background: var(--primary);
}

.switch input:checked + .slider::before {
    transform: translateX(20px);
}

/* --- Task Card --- */
.task-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
}

.task-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.task-card.done { opacity: 0.6; }
.task-card.done .task-title { text-decoration: line-through; }

.task-checkbox {
    width: 22px; height: 22px;
    border: 2px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    margin-top: 1px;
}

.task-checkbox:hover { border-color: var(--primary); }

.task-checkbox.checked {
    background: var(--success);
    border-color: var(--success);
    color: #fff;
    font-size: 11px;
}

.task-card-body {
    flex: 1;
    min-width: 0;
}

.task-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    word-wrap: break-word;
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.task-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-priority-low { background: #ECFDF5; color: #059669; }
.badge-priority-medium { background: #FFFBEB; color: #D97706; }
.badge-priority-high { background: #FFF7ED; color: #EA580C; }
.badge-priority-urgent { background: #FEF2F2; color: #DC2626; }

[data-theme="dark"] .badge-priority-low { background: rgba(5,150,105,0.15); }
[data-theme="dark"] .badge-priority-medium { background: rgba(217,119,6,0.15); }
[data-theme="dark"] .badge-priority-high { background: rgba(234,88,12,0.15); }
[data-theme="dark"] .badge-priority-urgent { background: rgba(220,38,38,0.15); }

.badge-due { background: var(--bg-hover); color: var(--text-secondary); }
.badge-due.overdue { background: var(--danger-bg); color: var(--danger); }
.badge-due.today { background: var(--warning-bg); color: var(--warning); }

.badge-steps { background: var(--primary-bg); color: var(--primary); }
.badge-comments { background: var(--bg-hover); color: var(--text-secondary); }

.task-card-drag {
    width: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    cursor: grab;
    flex-shrink: 0;
    font-size: 12px;
    opacity: 0;
    transition: var(--transition);
}

.task-card:hover .task-card-drag { opacity: 1; }
.task-card-drag:active { cursor: grabbing; }

.task-status-indicator {
    width: 4px;
    border-radius: 2px;
    align-self: stretch;
    flex-shrink: 0;
}

.status-todo { background: var(--text-tertiary); }
.status-in_progress { background: var(--info); }
.status-done { background: var(--success); }

/* Drag state */
.task-card.dragging {
    opacity: 0.5;
    transform: scale(0.98);
}

.task-card.drag-over {
    border-top: 2px solid var(--primary);
}

/* --- Toast --- */
.toast-container {
    position: fixed;
    bottom: 90px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
    pointer-events: none;
}

.toast {
    padding: 12px 20px;
    background: var(--bg-card);
    color: var(--text);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary);
    font-size: 13px;
    font-weight: 500;
    animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
    pointer-events: auto;
    max-width: 340px;
    text-align: center;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(-10px) scale(0.95); }
}

/* --- Settings --- */
.settings-body {
    padding-bottom: 40px;
}

.settings-section {
    margin-bottom: 28px;
}

.settings-section h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-section h4 i {
    color: var(--primary);
}

/* --- Loading spinner --- */
.spinner {
    width: 20px; height: 20px;
    border: 2.5px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

/* --- Status select in detail --- */
.status-select-wrap {
    display: flex;
    gap: 6px;
}

.status-option {
    padding: 6px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-full);
    background: none;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.status-option:hover { border-color: var(--primary); }

.status-option.active-todo { background: var(--bg-hover); border-color: var(--text-tertiary); color: var(--text); }
.status-option.active-in_progress { background: rgba(59,130,246,0.1); border-color: var(--info); color: var(--info); }
.status-option.active-done { background: var(--success-bg); border-color: var(--success); color: var(--success); }