@import url('tokens.css');

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", sans-serif;
  color: var(--gc-color-text);
  background: var(--gc-color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--gc-color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--gc-color-primary);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.gc-container {
  width: 100%;
  max-width: var(--gc-container);
  margin-inline: auto;
  padding-inline: var(--gc-space-4);
}

.gc-section {
  padding-block: var(--gc-space-7);
}

.gc-section-title {
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gc-color-text);
}

.gc-section-subtitle {
  margin-top: var(--gc-space-2);
  font-size: 1rem;
  color: var(--gc-color-muted);
}

.gc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--gc-space-2);
  padding: var(--gc-space-3) var(--gc-space-5);
  border-radius: var(--gc-radius-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}

.gc-btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.gc-btn:active {
  transform: translateY(0);
}

.gc-btn--primary {
  background: var(--gc-color-primary);
  color: #fff;
}
.gc-btn--primary:hover {
  background: var(--gc-color-primary-hover);
}

.gc-btn--secondary {
  background: #fff;
  color: var(--gc-color-text);
  border-color: var(--gc-color-border);
}
.gc-btn--secondary:hover {
  border-color: var(--gc-color-primary);
  color: var(--gc-color-primary);
}

.gc-btn--dark {
  background: var(--gc-color-dark);
  color: #fff;
}
.gc-btn--dark:hover {
  background: var(--gc-color-dark-2);
}

.gc-btn--ghost {
  background: transparent;
  color: var(--gc-color-primary);
  border-color: var(--gc-color-primary);
}

.gc-btn--sm {
  padding: var(--gc-space-2) var(--gc-space-3);
  font-size: 0.85rem;
}

.gc-btn--lg {
  padding: var(--gc-space-3) var(--gc-space-6);
  font-size: 1.05rem;
}

.gc-btn--block {
  width: 100%;
}

.gc-card {
  background: var(--gc-color-surface);
  border-radius: var(--gc-radius-lg);
  border: 1px solid var(--gc-color-border);
  box-shadow: var(--gc-shadow-soft);
  overflow: hidden;
}

.gc-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--gc-space-1);
  padding: var(--gc-space-1) var(--gc-space-3);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--gc-color-border);
  background: var(--gc-color-bg);
  color: var(--gc-color-text);
}

.gc-tag--ev {
  background: #e8f5e9;
  color: var(--gc-color-ev);
  border-color: #c8e6c9;
}

.gc-tag--warning {
  background: #fff8e1;
  color: #e65100;
  border-color: #ffe082;
}

.gc-tag--china {
  background: #fff3e0;
  color: var(--gc-color-china);
  border-color: #ffcc80;
}

.gc-tag--sold {
  background: #f5f5f5;
  color: var(--gc-color-muted);
  border-color: #e0e0e0;
}

.gc-tag--reserved {
  background: #e3f2fd;
  color: var(--gc-color-primary);
  border-color: #bbdefb;
}

.gc-input {
  width: 100%;
  padding: var(--gc-space-3) var(--gc-space-4);
  border-radius: var(--gc-radius-md);
  border: 1px solid var(--gc-color-border);
  background: var(--gc-color-surface);
  font-size: 0.95rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.gc-input:focus {
  border-color: var(--gc-color-primary);
  box-shadow: 0 0 0 3px rgba(77,137,222,0.15);
}

.gc-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.gc-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--gc-space-2);
  color: var(--gc-color-text);
}

.gc-form-group {
  margin-bottom: var(--gc-space-4);
}

.gc-form-error {
  margin-top: var(--gc-space-2);
  font-size: 0.85rem;
  color: #dc2626;
}

@media (max-width: 767px) {
  .gc-container {
    padding-inline: var(--gc-space-3);
  }
  .gc-section {
    padding-block: var(--gc-space-6);
  }
}