/* ============================================================
   COMPONENTS — 通用组件（全站）
   按钮 / 卡片 / 表单 / modal / to-top / members / badges
   依赖 tokens.css
   ============================================================ */

/* ============ BUTTONS ============ */
.btn {
  display: inline-block;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-btn);
  font-weight: var(--fw-semibold);
  font-size: var(--font-body);
  font-family: inherit;
  transition: all 0.2s;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--accent) !important;
  color: #0a1069 !important;
  border-color: var(--accent) !important;
}

.btn-primary:hover {
  background-color: var(--accent-hover) !important;
  border-color: var(--accent-hover) !important;
}

.btn-secondary,
.btn-outline {
  background-color: transparent !important;
  color: var(--text) !important;
  border-color: var(--text) !important;
}

.btn-secondary:hover,
.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  border-color: var(--text) !important;
}

/* ============ SECTIONS (通用头三件套) ============ */
.section {
  padding: var(--space-9) 0;
}

.section-title {
  font-size: var(--font-h1);
  text-align: center;
  margin-bottom: var(--space-3);
  color: var(--text);
}

.section-sub {
  text-align: center;
  color: var(--muted);
  margin-bottom: var(--space-7);
  font-size: var(--font-h3);
}

.section-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.small-note {
  text-align: center;
  color: var(--muted);
  font-size: var(--font-h4);
  margin-top: var(--space-5);
}

/* ============ CARDS & GRIDS ============ */
.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6) var(--space-5);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(102, 217, 255, 0.25);
}

.card h3 {
  font-size: var(--font-h3);
  margin-bottom: var(--space-3);
  color: var(--text);
}

.card p {
  color: var(--muted);
  font-size: var(--font-body);
}

/* ============ BADGES (achievements) ============ */
.badge {
  position: relative;
  display: inline-block;
  font-size: var(--font-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  padding: 4px var(--space-3);
  z-index: 1;
}

.badge strong {
  font-weight: var(--fw-bold);
}

.badge::before {
  content: '🏅';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 48px;
  line-height: 1;
  z-index: -1;
}

.badge-worldfirst::before {
  content: '🥇';
}

.badge-market {
  color: #7ff0b3;
}

.badge-proto {
  color: #ffd27f;
}

.badge-worldfirst {
  color: #ffb3d1;
}

/* ============ MODALS ============ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: var(--space-5);
  overflow-y: auto;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-6);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-box h2 {
  font-size: var(--font-h3);
  margin-bottom: var(--space-5);
  color: var(--text);
}

.modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.modal-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.modal-countdown {
  text-align: center;
  font-size: var(--font-body);
  color: var(--muted);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.modal-countdown #countdown-display,
.modal-countdown #book-countdown-display {
  color: var(--yellow);
  font-weight: var(--fw-bold);
  font-family: "SF Mono", "Consolas", "Monaco", monospace;
  letter-spacing: 1px;
}

.modal-countdown #countdown-display.expired,
.modal-countdown #book-countdown-display.expired {
  color: #ff4d6d;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* ============ FORMS ============ */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

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

.form-group label {
  display: block;
  font-size: var(--font-body);
  color: var(--muted);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-body);
  font-family: inherit;
  background: #ffffff;
  color: #0a1069;
  border: 1px solid #d0d8ff;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s, border-width 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: #ff4d6d;
  border-width: 3px;
  padding: calc(var(--space-3) - 2px) calc(var(--space-4) - 2px);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
}

.captcha-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.captcha-label {
  font-size: var(--font-body);
  color: var(--muted);
  margin: 0;
  white-space: nowrap;
}

.captcha-question {
  font-size: var(--font-body);
  font-weight: var(--fw-semibold);
  color: var(--yellow);
  white-space: nowrap;
}

.captcha-input {
  max-width: 130px;
  font-size: var(--font-body);
  text-align: center;
  padding: var(--space-2) var(--space-3);
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  flex-wrap: wrap;
  justify-content: center;
}

.form-note {
  margin-top: var(--space-3);
  font-size: var(--font-body);
  text-align: center;
}

.form-note.error {
  color: #ff7b8a;
}

.form-note.success {
  color: #7ff0b3;
}

/* ============ BOOK CALL SPECIFIC ============ */
#book-modal .modal-box {
  max-width: 720px;
}

.booking-hint {
  font-size: var(--font-body);
  color: var(--muted);
  margin-top: calc(var(--space-2) * -1);
  margin-bottom: var(--space-4);
  text-align: center;
}

.urgent-warning {
  background: rgba(255, 77, 109, 0.12);
  border: 1px solid #ff4d6d;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-body);
  color: #ff7b8a;
  text-align: center;
  margin-bottom: var(--space-4);
  display: none;
}

.urgent-warning.visible {
  display: block;
}

/* ============ 锁图标（区块标题 / 卡片标题） ============ */
.section-title-lock {
  display: inline-block;
  font-size: 1em;
  vertical-align: middle;
  margin-left: 8px;
  line-height: 1;
  opacity: 0.9;
}

.post-title-lock {
  display: inline-block;
  font-size: 1em;
  vertical-align: middle;
  margin-left: 6px;
  line-height: 1;
  opacity: 0.9;
}

/* ============ TO-TOP ============ */
.to-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 50;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px solid #0c148b;
  cursor: pointer;
  background: #ffffff;
  color: #0c148b;
  display: grid;
  place-items: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s, box-shadow 0.25s, background 0.25s, color 0.25s;
  -webkit-tap-highlight-color: transparent;
}

.to-top.show {
  opacity: 1;
  pointer-events: auto;
}

@media (hover: hover) and (pointer: fine) {
  .to-top.show:hover {
    background: #ffd83d;
    color: #0c148b;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
  }
}

.to-top.show.pressed,
.to-top.show:active {
  background: #ffd83d;
  color: #0c148b;
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .to-top {
    width: 42px;
    height: 42px;
    right: 18px;
    bottom: 18px;
  }
}

@media print {
  .to-top {
    display: none !important;
  }
}

/* ============ MEMBERS MODAL ============ */
.members-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 18, 32, 0.75);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.members-modal-overlay.show {
  display: flex;
}

.members-modal-box {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: #ffffff;
  border-radius: 14px;
  padding: 36px 28px 32px;
  box-shadow: 0 20px 60px -20px rgba(11, 18, 32, 0.6);
  text-align: center;
}

.members-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}

.members-modal-close:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.members-modal-icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 12px;
}

.members-modal-title {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 14px;
}

.members-modal-text {
  font-size: 16px;
  color: #475569;
  line-height: 1.7;
  margin: 0 0 8px;
}

.members-modal-text-zh {
  font-size: 16px;
  color: #64748b;
  line-height: 1.7;
  margin: 0;
}