:root {
    --ui-button-height: 44px;
    --ui-button-radius: 10px;
    --ui-button-gap: 8px;
    --ui-button-border: var(--theme-primary, #d70f64);
    --ui-button-text: var(--theme-text, #b42360);
    --ui-button-soft: var(--theme-bg-light, #fff0f5);
    --ui-button-disabled-border: #e2e8f0;
    --ui-button-disabled-bg: #f8fafc;
    --ui-button-disabled-text: #94a3b8;
}

.btn,
.ui-btn {
    box-sizing: border-box;
    min-height: var(--ui-button-height);
    border: 1px solid var(--ui-button-border);
    border-radius: var(--ui-button-radius);
    background: #fff;
    color: var(--ui-button-text);
    padding: 10px 14px;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, opacity 160ms ease;
}

.btn:hover:not(:disabled),
.ui-btn:hover:not(:disabled),
.btn:active:not(:disabled),
.ui-btn:active:not(:disabled) {
    background: var(--ui-button-soft);
}

.btn:focus-visible,
.ui-btn:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--ui-button-border) 24%, transparent);
    outline-offset: 2px;
}

.btn:disabled,
.ui-btn:disabled,
.btn[aria-disabled="true"],
.ui-btn[aria-disabled="true"] {
    border-color: var(--ui-button-disabled-border);
    background: var(--ui-button-disabled-bg);
    color: var(--ui-button-disabled-text);
    opacity: 1;
    cursor: not-allowed;
}

.btn-secondary {
    --ui-button-border: #cbd5e1;
    --ui-button-text: #475569;
    --ui-button-soft: #f8fafc;
}

.btn-success,
.btn-platform-ubereats {
    --ui-button-border: #16a34a;
    --ui-button-text: #15803d;
    --ui-button-soft: #f0fdf4;
}

.btn-warning {
    --ui-button-border: #d97706;
    --ui-button-text: #a16207;
    --ui-button-soft: #fffbeb;
}

.btn-danger,
.btn-delete {
    --ui-button-border: #dc2626;
    --ui-button-text: #b91c1c;
    --ui-button-soft: #fef2f2;
}

.btn-info {
    --ui-button-border: #0284c7;
    --ui-button-text: #0369a1;
    --ui-button-soft: #f0f9ff;
}

.btn-platform-foodpanda {
    --ui-button-border: #d70f64;
    --ui-button-text: #b42360;
    --ui-button-soft: #fff0f5;
}

.btn-icon {
    width: var(--ui-button-height);
    min-width: var(--ui-button-height);
    height: var(--ui-button-height);
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-block {
    width: 100%;
}

.btn-row {
    display: flex;
    align-items: center;
    gap: var(--ui-button-gap);
}

.btn-row > .btn,
.btn-row > .ui-btn {
    flex: 1;
    margin-top: 0;
}

.btn-stack > .btn,
.btn-stack > .ui-btn {
    width: 100%;
    margin-top: 0;
}

.btn-stack > .btn + .btn,
.btn-stack > .ui-btn + .ui-btn {
    margin-top: var(--ui-button-gap);
}

.btn-spaced-top {
    margin-top: var(--ui-button-gap) !important;
}

.btn-pill {
    border-radius: 999px;
}

.btn-compact {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 12px;
}

.btn.is-active,
.btn[aria-pressed="true"] {
    background: var(--ui-button-soft);
    border-color: var(--ui-button-border);
    color: var(--ui-button-text);
}

.btn.is-loading {
    cursor: wait;
}

button.btn.review-notice-btn.primary,
button.btn.review-notice-btn.secondary,
.photo-upload-actions .btn-select,
.photo-upload-actions .btn-camera {
    background: #fff;
    color: var(--ui-button-text);
    border-color: var(--ui-button-border);
}

button.btn.review-notice-btn.secondary,
.photo-upload-actions .btn-select {
    --ui-button-border: #cbd5e1;
    --ui-button-text: #475569;
    --ui-button-soft: #f8fafc;
}

.photo-upload-actions .btn-camera {
    --ui-button-border: #0284c7;
    --ui-button-text: #0369a1;
    --ui-button-soft: #f0f9ff;
}

@media (max-width: 640px) {
    .btn-compact {
        min-height: var(--ui-button-height);
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn,
    .ui-btn {
        transition: none;
    }
}