/* ============================================================
   MBS Global — Component styles
   Class-based styling for the React primitives. Components stay thin
   and apply these classes; all visual state (hover/focus/checked) lives
   here, driven by the design tokens. Designed for dark scheme surfaces.
   ============================================================ */

/* ---------------- Button ---------------- */
.mbs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  white-space: nowrap;
  font-family: var(--font-body);
  font-weight: var(--font-weight-medium);
  font-size: var(--text-small);
  line-height: 1.4;
  border-radius: var(--radius-button);
  border: 1px solid transparent;
  padding: 0.6rem 1.1rem;
  transition: background-color var(--duration-base) var(--ease-standard),
    border-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard),
    opacity var(--duration-base) var(--ease-standard);
}
.mbs-btn:focus-visible { outline: 2px solid var(--color-white-60); outline-offset: 2px; }
.mbs-btn:disabled { opacity: 0.5; pointer-events: none; }
.mbs-btn svg, .mbs-btn img { width: 1.1em; height: 1.1em; flex: 0 0 auto; }

.mbs-btn--sm { padding: 0.4rem 0.85rem; font-size: var(--text-tiny); }
.mbs-btn--lg { padding: 0.8rem 1.5rem; font-size: var(--text-regular); }

/* primary: solid white on dark (the dominant CTA) */
.mbs-btn--primary {
  background: var(--color-white);
  border-color: var(--color-white);
  color: var(--color-neutral-darkest);
}
.mbs-btn--primary:hover {
  background: var(--color-neutral-lighter);
  border-color: var(--color-neutral-lighter);
}

/* brand: deep navy fill */
.mbs-btn--brand {
  background: var(--color-downriver);
  border-color: var(--color-downriver);
  color: var(--color-white);
}
.mbs-btn--brand:hover {
  background: var(--color-downriver-dark);
  border-color: var(--color-downriver-dark);
}

/* secondary: transparent, hairline border, glass blur */
.mbs-btn--secondary {
  background: transparent;
  border-color: var(--color-white-20);
  color: var(--color-white);
  backdrop-filter: blur(10px);
}
.mbs-btn--secondary:hover {
  border-color: var(--color-neutral-lighter);
  background: var(--color-white-10);
}

/* link: inline text affordance with optional icon */
.mbs-btn--link {
  background: transparent;
  border-color: transparent;
  color: var(--color-white);
  padding: 0;
  gap: 0.4rem;
}
.mbs-btn--link:hover { opacity: 0.7; }

/* ---------------- Badge / Tag ---------------- */
.mbs-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-size: var(--text-tiny);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-badge);
  border: 1px solid var(--color-white-20);
  color: var(--color-white);
}
.mbs-badge--solid { background: var(--color-white); color: var(--color-neutral-darkest); border-color: var(--color-white); }
.mbs-badge--health { border-color: var(--color-mexican-red-light); color: var(--color-mexican-red-light); }
.mbs-badge--education { border-color: var(--color-sea-green-light); color: var(--color-sea-green-light); }
.mbs-badge--consulting { border-color: var(--color-rope-light); color: var(--color-rope-light); }
.mbs-badge .mbs-badge__dot { width: 0.5rem; height: 0.5rem; border-radius: 100px; background: currentColor; }

/* ---------------- Eyebrow ---------------- */
.mbs-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  letter-spacing: 0;
}
.mbs-eyebrow--muted { color: var(--color-white-60); }

/* ---------------- Card ---------------- */
.mbs-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-card);
  border: 1px solid var(--scheme-border, var(--color-white-20));
  background: var(--scheme-foreground, transparent);
  color: var(--scheme-text, var(--color-white));
}
.mbs-card--transparent { background: transparent; border-color: var(--color-white-20); }
.mbs-card__media { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.mbs-card__media--wide { aspect-ratio: 16 / 10; }
.mbs-card__body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }
.mbs-card__title { font-family: var(--font-heading); font-weight: var(--font-weight-bold); font-size: var(--text-h6); line-height: 1.15; }
.mbs-card__text { font-family: var(--font-body); font-size: var(--text-small); color: var(--color-white-60); line-height: var(--leading-body); }

/* ---------------- IconTile (glass) ---------------- */
.mbs-icontile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-card);
  background: var(--color-white-5);
  border: 1px solid var(--color-white-15);
  backdrop-filter: blur(10px);
  color: var(--color-white);
}
.mbs-icontile svg, .mbs-icontile img { width: 1.6rem; height: 1.6rem; }
.mbs-icontile img { filter: brightness(0) invert(1); }
.mbs-icontile--lg { width: 4.5rem; height: 4.5rem; }
.mbs-icontile--lg svg, .mbs-icontile--lg img { width: 2rem; height: 2rem; }

/* Utility: render a black Material Symbol SVG as white on dark surfaces */
.mbs-icon-invert { filter: brightness(0) invert(1); }

/* ---------------- Input / Textarea ---------------- */
.mbs-field { display: flex; flex-direction: column; gap: var(--space-2); width: 100%; }
.mbs-label { font-family: var(--font-body); font-size: var(--text-small); font-weight: var(--font-weight-medium); color: var(--color-white); }
.mbs-input,
.mbs-textarea {
  font-family: var(--font-body);
  font-size: var(--text-small);
  color: var(--color-white);
  background: transparent;
  border: 1px solid var(--color-white-20);
  border-radius: var(--radius-input);
  padding: 0.7rem 0.9rem;
  width: 100%;
  transition: border-color var(--duration-base) var(--ease-standard);
}
.mbs-input::placeholder,
.mbs-textarea::placeholder { color: var(--color-white-40); }
.mbs-input:focus,
.mbs-textarea:focus { outline: none; border-color: var(--color-white-60); }
.mbs-textarea { resize: vertical; min-height: 7rem; line-height: var(--leading-body); }
.mbs-input:disabled,
.mbs-textarea:disabled { opacity: 0.5; }

/* ---------------- Checkbox ---------------- */
.mbs-checkbox { display: inline-flex; align-items: flex-start; gap: 0.6rem; font-family: var(--font-body); font-size: var(--text-small); color: var(--color-white); cursor: pointer; }
.mbs-checkbox input { position: absolute; opacity: 0; width: 0; height: 0; }
.mbs-checkbox__box {
  width: 1.15rem; height: 1.15rem; flex: 0 0 auto; margin-top: 0.1rem;
  border-radius: var(--radius-checkbox);
  border: 1px solid var(--color-white-40);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard);
}
.mbs-checkbox__box svg { width: 0.8rem; height: 0.8rem; opacity: 0; color: var(--color-neutral-darkest); }
.mbs-checkbox input:checked + .mbs-checkbox__box { background: var(--color-white); border-color: var(--color-white); }
.mbs-checkbox input:checked + .mbs-checkbox__box svg { opacity: 1; }
.mbs-checkbox input:focus-visible + .mbs-checkbox__box { outline: 2px solid var(--color-white-60); outline-offset: 2px; }

/* ---------------- Accordion ---------------- */
.mbs-accordion { border-top: 1px solid var(--color-white-20); }
.mbs-accordion__item { border-bottom: 1px solid var(--color-white-20); }
.mbs-accordion__trigger {
  width: 100%; background: transparent; border: 0; color: var(--color-white);
  font-family: var(--font-heading); font-weight: var(--font-weight-semibold); font-size: var(--text-h6);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.25rem 0; text-align: left;
}
.mbs-accordion__icon { flex: 0 0 auto; transition: transform var(--duration-base) var(--ease-standard); }
.mbs-accordion__item[data-open="true"] .mbs-accordion__icon { transform: rotate(180deg); }
.mbs-accordion__panel { overflow: hidden; max-height: 0; transition: max-height var(--duration-slow) var(--ease-standard); }
.mbs-accordion__item[data-open="true"] .mbs-accordion__panel { max-height: 24rem; }
.mbs-accordion__panel-inner { padding: 0 0 1.25rem; font-family: var(--font-body); font-size: var(--text-small); color: var(--color-white-60); line-height: var(--leading-body); }

/* ---------------- Tabs ---------------- */
.mbs-tabs__list { display: inline-flex; gap: 0.4rem; border: 1px solid var(--color-white-20); border-radius: var(--radius-button); padding: 0.3rem; }
.mbs-tabs__trigger {
  font-family: var(--font-body); font-size: var(--text-small); font-weight: var(--font-weight-medium);
  color: var(--color-white-60); background: transparent; border: 0; border-radius: var(--radius-button);
  padding: 0.45rem 1rem; transition: color var(--duration-base) var(--ease-standard), background var(--duration-base) var(--ease-standard);
}
.mbs-tabs__trigger:hover { color: var(--color-white); }
.mbs-tabs__trigger[data-active="true"] { background: var(--color-white); color: var(--color-neutral-darkest); }
.mbs-tabs__panel { padding-top: var(--space-6); animation: mbs-fade var(--duration-slow) var(--ease-standard); }
@keyframes mbs-fade { from { opacity: 0; } to { opacity: 1; } }