/* TỨ PHỦ — System states & error experience (UI-35) */

.ss-page {
  min-height: calc(100vh - var(--header-h, 4.5rem));
}

.ss-hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 0 3rem;
}

.ss-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(116, 43, 50, 0.22), transparent 55%),
    radial-gradient(ellipse at 80% 40%, rgba(196, 154, 89, 0.08), transparent 45%);
  pointer-events: none;
}

.ss-code {
  font-family: "Noto Serif", Georgia, serif;
  font-size: clamp(3.5rem, 12vw, 6.5rem);
  line-height: 1;
  color: #c49a59;
  letter-spacing: 0.04em;
  opacity: 0.92;
}

.ss-panel {
  position: relative;
  border: 1px solid rgba(98, 68, 60, 0.55);
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(53, 35, 38, 0.55), rgba(42, 26, 28, 0.92));
  padding: 1.5rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.ss-panel.is-paper {
  background: #f5ebdd;
  color: #33241f;
  border-color: rgba(98, 68, 60, 0.35);
}

.ss-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(196, 154, 89, 0.45);
  background: rgba(25, 15, 18, 0.55);
  color: #e4c58c;
}

.ss-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.ss-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.5rem;
  padding: 0.45rem 1rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(98, 68, 60, 0.55);
  background: rgba(53, 35, 38, 0.95);
  color: #f4e6d1;
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
}

.ss-btn:hover,
.ss-btn:focus-visible {
  border-color: #c49a59;
  outline: none;
}

.ss-btn.is-primary {
  background: #742b32;
  border-color: transparent;
}

.ss-btn.is-ghost {
  background: transparent;
}

.ss-meta {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
  font-size: 0.85rem;
}

.ss-meta dt {
  color: #c49a59;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ss-meta dd {
  color: #d5ba99;
  margin: 0.15rem 0 0;
}

.ss-suggest {
  display: grid;
  gap: 0.65rem;
}

@media (min-width: 640px) {
  .ss-suggest {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .ss-suggest {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.ss-suggest a {
  display: block;
  border-radius: 0.75rem;
  border: 1px solid rgba(98, 68, 60, 0.5);
  background: rgba(42, 26, 28, 0.85);
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: #f4e6d1;
}

.ss-suggest a:hover,
.ss-suggest a:focus-visible {
  border-color: #c49a59;
  outline: none;
}

.ss-suggest p {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: #d5ba99;
}

.ss-search {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.ss-search input {
  flex: 1 1 220px;
  min-height: 2.75rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(98, 68, 60, 0.55);
  background: #2a1a1c;
  color: #f4e6d1;
  padding: 0.55rem 0.85rem;
}

.ss-search input:focus {
  border-color: #c49a59;
  outline: none;
}

/* Shared empty / error / verification blocks */
.ss-state {
  border-radius: 0.85rem;
  border: 1px dashed rgba(98, 68, 60, 0.65);
  background: rgba(25, 15, 18, 0.45);
  padding: 1.25rem;
  text-align: center;
}

.ss-state[data-ss-type="error"] {
  border-style: solid;
  border-color: rgba(116, 43, 50, 0.65);
}

.ss-state[data-ss-type="restricted"],
.ss-state[data-ss-type="verification-pending"] {
  border-style: solid;
  border-color: rgba(196, 154, 89, 0.45);
}

.ss-state-title {
  font-family: "Noto Serif", Georgia, serif;
  font-size: 1.1rem;
  color: #f4e6d1;
  margin: 0.75rem 0 0.35rem;
}

.ss-state-desc {
  margin: 0;
  font-size: 0.875rem;
  color: #d5ba99;
  line-height: 1.55;
}

.ss-state-actions {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

/* Skeletons */
.ss-skel {
  display: grid;
  gap: 0.75rem;
}

.ss-skel-line,
.ss-skel-card,
.ss-skel-block {
  border-radius: 0.55rem;
  background: linear-gradient(
    90deg,
    rgba(53, 35, 38, 0.9) 0%,
    rgba(98, 68, 60, 0.35) 50%,
    rgba(53, 35, 38, 0.9) 100%
  );
  background-size: 200% 100%;
}

.ss-skel-line {
  height: 0.85rem;
}

.ss-skel-card {
  height: 7.5rem;
}

.ss-skel-block {
  height: 12rem;
}

.ss-skel.is-animate .ss-skel-line,
.ss-skel.is-animate .ss-skel-card,
.ss-skel.is-animate .ss-skel-block {
  animation: ss-shimmer 1.4s linear infinite;
}

@keyframes ss-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .ss-skel.is-animate .ss-skel-line,
  .ss-skel.is-animate .ss-skel-card,
  .ss-skel.is-animate .ss-skel-block {
    animation: none;
  }
}

.ss-skel-grid {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .ss-skel-grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Coming-soon modal */
.ss-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(25, 15, 18, 0.78);
  backdrop-filter: blur(2px);
}

.ss-modal-backdrop.is-open {
  display: flex;
}

.ss-modal {
  width: min(100%, 28rem);
  max-height: min(90vh, 36rem);
  overflow: auto;
  border-radius: 1rem;
  border: 1px solid rgba(98, 68, 60, 0.6);
  background: #2a1a1c;
  color: #f4e6d1;
  padding: 1.25rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.ss-toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  z-index: 95;
  transform: translateX(-50%) translateY(120%);
  border-radius: 0.65rem;
  border: 1px solid rgba(98, 68, 60, 0.55);
  background: #2a1a1c;
  color: #f4e6d1;
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
  max-width: min(92vw, 28rem);
  text-align: center;
}

.ss-toast.is-open {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.ss-toast.is-success { border-color: rgba(196, 154, 89, 0.7); }
.ss-toast.is-warning { border-color: rgba(196, 154, 89, 0.85); }
.ss-toast.is-error { border-color: rgba(116, 43, 50, 0.85); }

@media (prefers-reduced-motion: reduce) {
  .ss-toast { transition: none; }
}

@media (max-width: 639px) {
  .ss-actions .ss-btn {
    flex: 1 1 100%;
  }
}