input,
select,
textarea {
    width: 100%;
    height: 40px;
    border: 1px solid var(--color-border);
    padding: 10px;
    margin: 5px 0 15px;
    font-size: var(--normal-font-size);
    border-radius: var(--border-radius);
    background: var(--color-surface);
    color: var(--color-text-subtle);
    resize: none;
}

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%23333" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

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

input:focus,
select:focus,
textarea:focus {
    outline: 1px solid var(--color-primary);
}

input:disabled,
select:disabled,
textarea:disabled {
    background-color: var(--color-surface-subtle);
    color: var(--color-text-muted);
    cursor: not-allowed;
    opacity: 0.7;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: fit-content;
    margin: auto 0;
    padding: 10px 20px;
    background: var(--color-primary);
    border: var(--border);
    border-radius: var(--border-radius);
    color: var(--color-background);
    font-size: var(--normal-font-size);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn * {
    color: inherit;
}

@media (hover: hover) and (pointer: fine) {
    .btn:hover {
        background: var(--color-primary-hover);
        box-shadow: var(--box-shadow-btn-hover);
        transform: translateY(-1px);
    }

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

    .btn-accent:hover {
        background: #a85a30;
        border-color: #a85a30;
    }
}

/* Full-width variant for sidebar actions */
.actions-group .btn {
    width: 100%;
}

/* Variant: primary (default brown) */
.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-background);
}

/* Variant: secondary (outline style) */
.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

/* Variant: small pill (for product cards) */
.btn-sm {
    padding: 8px 18px;
    font-size: var(--font-size-card-btn, 0.82rem);
    border-radius: 20px;
}

/* Variant: accent (warm orange) */
.btn-accent {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

section {
    padding: 60px 160px;
}

.title {
    font-family: "Zalando Sans Expanded", sans-serif;
    font-size: var(--title-font-size);
    font-weight: 900;
    margin-bottom: 20px;
}

.title-line {
    display: inline-block;
    white-space: nowrap;
}

.sub-title {
    font-size: var(--normal-font-size);
    color: var(--color-text-muted);
}

/* --- Actions group --- */
.actions-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ==========================================
   TOAST NOTIFICATION
   ========================================== */
#toast-container {
    position: fixed;
    top: 55px; /* Sát mép header hơn */
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast-notification {
    background: var(--color-surface, #fff);
    color: var(--color-text-main, #4E3527);
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(78, 53, 39, 0.1);
    border: 1px solid var(--color-border, #E8E3DF);
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

.toast-notification.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-notification .material-symbols-outlined {
    color: var(--color-accent, #E6A87C);
    font-size: 20px;
}

/* ==========================================
   PRICE & DISCOUNT COMPONENT
   ========================================== */

.price-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.discount-meta {
    display: flex;
    align-items: center;
    gap: 6px;
}

.original-price {
    font-size: var(--font-size-price-original);
    font-weight: 500;
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.discount-badge {
    font-size: var(--font-size-badge);
    font-weight: 800;
    color: var(--color-accent);
    background-color: var(--color-discount-bg);
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
}

.sale-price {
    font-size: var(--font-size-price);
    font-weight: 700;
    color: var(--color-text-main);
}

/* ==========================================
   RESPONSIVE MEDIA QUERIES (GLOBAL)
   ========================================== */

@media (max-width: 1400px) {
    section {
        padding: 60px 100px;
    }
}

@media (max-width: 1024px) {
    section {
        padding: 60px 80px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 24px;
    }
}

/* ==========================================
   BUTTON SPINNER (GLOBAL)
   ========================================== */
.btn-loading {
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 8px;
    opacity: 0.8;
    pointer-events: none;
}

.btn-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

.btn-secondary.btn-loading .btn-spinner {
    border-color: rgba(78, 53, 39, 0.2);
    border-top-color: var(--color-primary);
}

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