/* ==========================================================================
   RenderFrost SMP — 03b Cards, scroll reveals, notifications
   ========================================================================== */

.card {
  position: relative;
  padding: clamp(1.4rem, 2.2vw, 1.9rem);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  background: var(--surface-1);
  backdrop-filter: blur(14px);
  transition: border-color var(--t-base) var(--ease),
    background-color var(--t-base) var(--ease),
    transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}

.card--interactive {
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(139, 92, 246, 0.055), transparent 55%),
    var(--surface-1);
}

.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--text-muted); font-size: var(--fs-small); line-height: 1.7; }

.card--interactive:hover {
  transform: translateY(-3px);
  border-color: var(--glass-border-strong);
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(139, 92, 246, 0.12), transparent 58%),
    var(--surface-2);
  box-shadow: var(--shadow-md), 0 0 24px rgba(109, 63, 212, 0.08);
}

.card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.2em;
  color: var(--violet-400);
  margin-bottom: 1rem;
}

.card__glyph {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 1.1rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  background: rgba(139, 92, 246, 0.12);
  color: var(--violet-300);
}

.card__glyph svg { width: 18px; height: 18px; }

/* -------------------------------------------------------- Reveal on scroll */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays live here, never inline: the stylesheet stays the single
   source of truth and a strict style-src policy remains possible. */
.grid > [data-reveal]:nth-child(2) { --reveal-delay: 80ms; }
.grid > [data-reveal]:nth-child(3) { --reveal-delay: 160ms; }
.grid > [data-reveal]:nth-child(4) { --reveal-delay: 240ms; }
.split > [data-reveal]:nth-child(2) { --reveal-delay: 120ms; }

/* ------------------------------------------------------------ Notifications */

.toast-region {
  position: fixed;
  z-index: 260;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  display: grid;
  gap: 0.5rem;
  width: min(92vw, 380px);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--r-md);
  background: rgba(16, 13, 30, 0.94);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
  color: var(--frost-200);
  font-size: var(--fs-small);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--t-base) var(--ease-out),
    transform var(--t-base) var(--ease-out);
}

.toast.is-shown { opacity: 1; transform: none; }
.toast__icon { width: 16px; height: 16px; flex: none; }
.toast--success .toast__icon { color: var(--success); }
.toast--error .toast__icon { color: var(--danger); }
.toast--info .toast__icon { color: var(--violet-300); }

/* Footer address readout */
.footer__ip {
  margin: 0;
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  color: var(--frost-300);
}

/* Invite readout on the Discord page */
.invite {
  margin: 0;
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  color: var(--text-muted);
  user-select: all;
}

/* Page-header button row spacing */
.pagehead__inner .btn-row { margin-top: 0.5rem; }