/*
 * Shared button layer for static landing surfaces.
 * Tokens mirror services/landing/usefull-tokens.js.
 */
:root {
  --u-btn-bg: var(--card, #FFFFFF);
  --u-btn-surface: var(--surface, #F5F3EE);
  --u-btn-text: var(--text-primary, #1A1A2E);
  --u-btn-soft: var(--text-soft, #44445A);
  --u-btn-muted: var(--text-muted, #5F5F6E);
  --u-button-primary-bg: var(--coral, #C7402C);
  --u-button-primary-hover: #B83A28;
  --u-button-primary-soft-bg: var(--coral-bg, #FCEAE6);
  --u-btn-border: var(--border-color, #DDD8CE);
  --u-btn-border-light: var(--border-light, #ECEAE3);
  --u-btn-radius: var(--radius-lg, 12px);
  --u-btn-radius-pill: var(--radius-pill, 100px);
  --u-btn-focus: 0 0 0 4px rgba(199, 64, 44, 0.12);
  --u-btn-shadow-sm: var(--shadow-sm, 0 1px 3px rgba(26, 26, 46, 0.04), 0 1px 2px rgba(26, 26, 46, 0.02));
  --u-btn-disabled-opacity: 0.58;
}

.u-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  min-width: 0;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--u-btn-radius);
  font-family: 'Jost', sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background-color 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease;
}

.u-btn svg,
.u-btn [data-lucide] {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.u-btn:hover:not(:disabled):not([aria-disabled="true"]) {
  transform: translateY(-1px);
}

.u-btn:focus-visible {
  outline: none;
  box-shadow: var(--u-btn-focus);
}

.u-btn:disabled,
.u-btn[aria-disabled="true"] {
  opacity: var(--u-btn-disabled-opacity);
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

.u-btn--primary {
  background: var(--u-button-primary-bg);
  border-color: var(--u-button-primary-bg);
  color: #FFFFFF;
  box-shadow: 0 1px 3px rgba(199, 64, 44, 0.18);
}

.u-btn--primary:hover:not(:disabled):not([aria-disabled="true"]) {
  background: var(--u-button-primary-hover);
  border-color: var(--u-button-primary-hover);
  box-shadow: 0 6px 18px rgba(199, 64, 44, 0.18);
}

.u-btn--surface {
  background: var(--u-btn-bg);
  border-color: var(--u-btn-border-light);
  color: var(--u-btn-soft);
  box-shadow: var(--u-btn-shadow-sm);
}

.u-btn--surface:hover:not(:disabled):not([aria-disabled="true"]) {
  background: #FCFBF9;
  border-color: var(--u-btn-border);
  color: var(--u-btn-text);
}

.u-btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--u-btn-soft);
}

.u-btn--ghost:hover:not(:disabled):not([aria-disabled="true"]) {
  background: var(--u-btn-surface);
  color: var(--u-btn-text);
}

.u-btn--danger {
  background: #FFFFFF;
  border-color: var(--u-button-primary-bg);
  color: var(--u-button-primary-bg);
}

.u-btn--danger:hover:not(:disabled):not([aria-disabled="true"]) {
  background: var(--u-button-primary-soft-bg);
}

.u-btn--pill {
  border-radius: var(--u-btn-radius-pill);
}

.u-btn--icon {
  width: 40px;
  min-width: 40px;
  padding: 0;
  gap: 0;
}

.u-btn--sm {
  min-height: 34px;
  padding: 0 12px;
  font-size: 13px;
}

.u-btn--lg {
  min-height: 48px;
  padding: 0 22px;
  font-size: 15px;
}

.u-btn--full {
  width: 100%;
}

.admin-link-button:disabled,
.admin-link-button[aria-disabled="true"] {
  opacity: var(--u-btn-disabled-opacity);
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}