/* ── Buttons (.btn block) ──────────────────────
   Base + variants for all action buttons. Variants:
     --primary  green raised  (modal Save)
     --danger   red outline → red filled on hover (Delete)
     --ghost    neutral default (Cancel; explicit class for symmetry)
     --accent   purple raised (focus Start)
     --icon     square 46×46 icon-only (focus controls)
     --full     full-width, slightly taller (focus submit, auth submit)
     --text     no chrome, underlined text link (sign-out, etc.)
   States: .is-active (variant), :disabled (native).
   Element: .btn__icon (child icon wrapper).
   See also: standalone `.icon-btn` (bare icon — modal close X, inline remove). */
.btn {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: var(--text-lg);
  font-weight: var(--font-extrabold);
  cursor: pointer;
  border: 2.5px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  transition: all 0.12s ease;
  box-shadow: var(--shadow-chunky-rest) var(--border);
  position: relative;
  top: 0;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn:hover {
  background: var(--neutral-100);
}

.btn:active {
  top: 3px;
  box-shadow: var(--shadow-chunky-pressed) var(--border);
}

/* Generic disabled state — works for any variant. */
.btn:disabled {
  background: var(--neutral-400);
  border-color: var(--neutral-500);
  box-shadow: var(--shadow-chunky-rest) var(--neutral-500);
  color: var(--neutral-0);
  cursor: not-allowed;
}
.btn:disabled:hover {
  background: var(--neutral-400);
}
.btn:disabled:active {
  top: 0;
  box-shadow: var(--shadow-chunky-rest) var(--neutral-500);
}

.btn__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn__icon svg {
  display: block;
}

/* Size variant: full-width, slightly taller. */
.btn--full {
  width: 100%;
  padding: 14px 16px;
}

/* Square 44×44 icon-only variant (focus controls, etc.). */
.btn--icon {
  flex: 0 0 auto;
  padding: 0;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid var(--primary-dark);
  border-radius: var(--radius-tight);
  box-shadow: var(--shadow-chunky-rest) var(--primary-dark);
  color: var(--primary-dark);
}
.btn--icon:hover {
  background: rgba(255, 255, 255, 1);
}
.btn--icon:active {
  box-shadow: var(--shadow-chunky-pressed) var(--primary-dark);
}
.btn--icon > svg,
.btn--icon > img,
.btn--icon > .btn__icon > svg,
.btn--icon > .btn__icon > img {
  width: 24px;
  height: 24px;
}

/* Text-link variant — no chrome, underlined. Used for low-emphasis
   actions like sign-out where a button needs to look like a link. */
.btn--text {
  background: none;
  border: none;
  box-shadow: none;
  color: var(--text-muted);
  text-decoration: underline;
  font-size: var(--text-md);
  font-weight: var(--font-semibold);
  padding: 0;
  letter-spacing: normal;
  text-transform: none;
}
.btn--text:hover {
  background: none;
  color: var(--text);
}
.btn--text:active {
  top: 0;
  box-shadow: none;
}

.btn--primary {
  background: var(--green);
  color: var(--neutral-0);
  border-color: var(--green-dark);
  box-shadow: var(--shadow-chunky-rest) var(--green-dark);
}

.btn--primary:hover {
  background: var(--green-hover);
}

.btn--primary:active {
  box-shadow: var(--shadow-chunky-pressed) var(--green-dark);
}

.btn--accent {
  background: var(--purple);
  color: var(--neutral-0);
  border-color: var(--purple-dark);
  box-shadow: var(--shadow-chunky-rest) var(--purple-dark);
}

.btn--accent:hover {
  background: var(--purple-hover);
}

.btn--accent:active {
  box-shadow: var(--shadow-chunky-pressed) var(--purple-dark);
}

/* Disabled state (Figma node 39:283): keeps the purple/primary-dark chrome
   and drops the whole button to 60% opacity — matches the rgba(...,0.6)
   values for bg/border/shadow/text in the spec via a single opacity. */
.btn--accent:disabled {
  background: var(--purple);
  border-color: var(--purple-dark);
  box-shadow: var(--shadow-chunky-rest) var(--purple-dark);
  color: var(--neutral-0);
  opacity: 0.6;
  cursor: not-allowed;
}
.btn--accent:disabled:hover {
  background: var(--purple);
}
.btn--accent:disabled:active {
  top: 0;
  box-shadow: var(--shadow-chunky-rest) var(--purple-dark);
}

.btn--danger {
  color: var(--red);
  border-color: var(--red-dark);
  box-shadow: var(--shadow-chunky-rest) var(--red-dark);
}

.btn--danger:hover {
  background: var(--red);
  color: var(--neutral-0);
}

.btn--danger:active {
  box-shadow: var(--shadow-chunky-pressed) var(--red-dark);
}

/* .btn--ghost is the default look — defined as a no-op variant for
   symmetric class toggling (e.g. swap with .btn--danger). */
.btn--ghost { /* matches .btn base */ }

/* Compact size used in some forms (legacy non-BEM name). */
.btn-sm {
  padding: 10px 16px;
  font-size: var(--text-md);
  border-radius: var(--radius-sm);
}