/* components-controls.css — buttons, grade buttons, inputs, filter pills, audio button. */

.btn {
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-brand);
    color: var(--text-on-brand);
    box-shadow: 0 4px 15px rgba(192, 132, 252, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(192, 132, 252, 0.45);
}

.btn-secondary {
    background: color-mix(in srgb, var(--text-1) 5%, transparent);
    color: var(--text-1);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: color-mix(in srgb, var(--text-1) 10%, transparent);
    border-color: color-mix(in srgb, var(--text-1) 20%, transparent);
}

.btn-danger {
    background: rgba(248, 113, 113, 0.1);
    color: var(--danger);
    border: 1px solid rgba(248, 113, 113, 0.25);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.2);
    border-color: var(--danger);
}

.btn-sm {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.audio-btn {
    background: color-mix(in srgb, var(--text-1) 5%, transparent);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-1);
    cursor: pointer;
    transition: var(--transition-smooth);
    pointer-events: auto;
}

.audio-btn:hover {
    background: var(--brand-1);
    border-color: var(--brand-1);
    color: var(--text-on-brand);
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(192, 132, 252, 0.5);
}

.audio-btn svg {
    width: 20px;
    height: 20px;
}

.btn-grade {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 6px;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--border);
    background: color-mix(in srgb, var(--text-1) 3%, transparent);
    cursor: pointer;
    font-family: var(--font-ui);
    transition: var(--transition-smooth);
}

.btn-grade:hover {
    transform: translateY(-2px);
}

.btn-grade .grade-title {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.btn-grade .grade-interval {
    font-size: 0.75rem;
    opacity: 0.7;
}

.btn-again {
    color: var(--danger);
    border-color: rgba(248, 113, 113, 0.2);
}

.btn-again:hover {
    background: rgba(248, 113, 113, 0.1);
    border-color: var(--danger);
    box-shadow: 0 0 15px rgba(248, 113, 113, 0.2);
}

.btn-hard {
    color: var(--state-learning);
    border-color: rgba(251, 146, 60, 0.2);
}

.btn-hard:hover {
    background: rgba(251, 146, 60, 0.1);
    border-color: var(--state-learning);
    box-shadow: 0 0 15px rgba(251, 146, 60, 0.2);
}

.btn-good {
    color: var(--success);
    border-color: rgba(74, 222, 128, 0.2);
}

.btn-good:hover {
    background: rgba(74, 222, 128, 0.1);
    border-color: var(--success);
    box-shadow: 0 0 15px rgba(74, 222, 128, 0.2);
}

.btn-easy {
    color: var(--info);
    border-color: rgba(56, 189, 248, 0.2);
}

.btn-easy:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--info);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.search-input {
    background: var(--surface-1);
    border: 1px solid var(--border);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    color: var(--text-1);
    font-family: var(--font-ui);
    font-size: 0.95rem;
    width: 100%;
    outline: none;
    transition: var(--transition-smooth);
}

.search-input:focus {
    border-color: var(--text-brand);
    box-shadow: 0 0 10px rgba(192, 132, 252, 0.1);
}

.filter-pills {
    display: flex;
    gap: 8px;
}

.filter-pill {
    background: color-mix(in srgb, var(--text-1) 3%, transparent);
    border: 1px solid var(--border);
    color: var(--text-2);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-pill:hover, .filter-pill.active {
    background: color-mix(in srgb, var(--text-1) 8%, transparent);
    color: var(--text-1);
    border-color: color-mix(in srgb, var(--text-1) 20%, transparent);
}

.filter-pill.active {
    border-color: var(--text-brand);
    color: var(--text-brand);
    background: rgba(192, 132, 252, 0.05);
}