/* ============================================================================
   知萃 DistillAI — Account Pages Shared Styles
   版本: v4.0
   依赖: distillai-design-tokens.css, distill-shared.css
   用途: pricing / login / extension-connect / quota-bar 共享样式
   ============================================================================ */

/* ==========================================================================
   §1 价格页 — Pricing
   ========================================================================== */

/* --- Page wrapper --- */
.pricing-page {
  background: var(--zd-cloud);
  min-height: 100vh;
}

.pricing-hero {
  text-align: center;
  padding: var(--zd-space-12) var(--zd-space-6) var(--zd-space-8);
  background: var(--zd-navy-900);
  color: #fff;
}

.pricing-hero .section-label {
  color: var(--zd-mint-400);
}

.pricing-hero .section-heading {
  color: #fff;
  margin-bottom: var(--zd-space-4);
}

.pricing-hero p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.55);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- Pricing grid --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--zd-space-6);
  max-width: 1260px;
  margin: 0 auto;
  padding: var(--zd-space-10) var(--zd-space-6);
}

@media (max-width: 1199px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    padding: var(--zd-space-8) var(--zd-space-4);
  }
}

/* --- Pricing card --- */
.pricing-card {
  background: var(--zd-paper);
  border-radius: var(--zd-radius-card);
  border: 1px solid var(--zd-line);
  box-shadow: var(--zd-shadow-card);
  padding: var(--zd-space-8) var(--zd-space-6);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--zd-duration-normal) var(--zd-ease-out);
}

.pricing-card:hover {
  box-shadow: var(--zd-shadow-md);
  transform: translateY(-2px);
}

/* --- Pro card (highlighted) --- */
.pricing-card.pro {
  border: 2px solid var(--zd-mint-500);
  box-shadow: 0 0 0 4px rgba(98,227,167,.15), var(--zd-shadow-card);
}

.pricing-card.pro:hover {
  box-shadow: 0 0 0 4px rgba(98,227,167,.18), var(--zd-shadow-md);
}

.pricing-card .pro-tag {
  position: absolute;
  top: -1px;
  right: var(--zd-space-6);
  background: var(--zd-mint-500);
  color: var(--zd-navy-900);
  font-size: 0.725rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 0 0 var(--zd-radius-xs) var(--zd-radius-xs);
  letter-spacing: 0.03em;
  line-height: 1;
}

/* --- Card header --- */
.pricing-card .plan-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--zd-ink);
  margin-bottom: var(--zd-space-1);
}

.pricing-card .plan-desc {
  font-size: 0.825rem;
  color: var(--zd-muted);
  margin-bottom: var(--zd-space-6);
  line-height: 1.5;
}

/* --- Price --- */
.pricing-card .plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--zd-ink);
  margin-bottom: var(--zd-space-2);
  letter-spacing: -0.02em;
  line-height: 1;
}

.pricing-card .plan-price .currency {
  font-size: 1.25rem;
  font-weight: 600;
  vertical-align: super;
}

.pricing-card .plan-price .period {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--zd-muted);
  letter-spacing: 0;
}

.pricing-card .plan-price-free {
  color: var(--zd-mint-600);
}

/* --- Features list --- */
.pricing-card .plan-features {
  list-style: none;
  margin: 0 0 var(--zd-space-8);
  padding: 0;
  flex: 1;
}

.pricing-card .plan-features li {
  font-size: 0.875rem;
  color: var(--zd-text);
  padding: var(--zd-space-2) 0 var(--zd-space-2) 24px;
  position: relative;
  line-height: 1.5;
}

.pricing-card .plan-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--zd-mint-100);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2337C98D' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 10px 10px;
  background-position: center;
  background-repeat: no-repeat;
}

.pricing-card .plan-features li.feature-no {
  color: #ef4444;
  text-decoration: line-through;
}

.pricing-card .plan-features li.feature-no::before {
  background: #fef2f2;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E");
  background-size: 10px 10px;
  background-position: center;
  background-repeat: no-repeat;
}

/* --- CTA button --- */
.pricing-card .plan-cta {
  margin-top: auto;
}

.pricing-card .plan-cta .btn {
  width: 100%;
}

/* --- FAQ Section --- */
.faq-section {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--zd-space-10) var(--zd-space-6);
}

.faq-section h2 {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--zd-ink);
  margin-bottom: var(--zd-space-8);
}

.faq-item {
  border-bottom: 1px solid var(--zd-line);
}

.faq-question {
  display: block;
  cursor: pointer;
  padding: var(--zd-space-5) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--zd-text);
  position: relative;
  padding-right: var(--zd-space-8);
  user-select: none;
  transition: color var(--zd-duration-fast) var(--zd-ease-out);
}

.faq-question:hover {
  color: var(--zd-mint-600);
}

.faq-question::after {
  content: '';
  position: absolute;
  right: var(--zd-space-2);
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23667085' stroke-width='2.5' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  transition: transform var(--zd-duration-fast) var(--zd-ease-out);
}

.faq-toggle {
  display: none;
}

.faq-toggle:checked + .faq-question::after {
  transform: translateY(-50%) rotate(180deg);
}

.faq-toggle:checked + .faq-question {
  color: var(--zd-mint-600);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--zd-duration-slow) var(--zd-ease-out),
              padding var(--zd-duration-slow) var(--zd-ease-out);
  font-size: 0.9rem;
  color: var(--zd-muted);
  line-height: 1.7;
  padding: 0;
}

.faq-toggle:checked + .faq-question + .faq-answer {
  max-height: 300px;
  padding-bottom: var(--zd-space-5);
}

/* ==========================================================================
   §2 登录弹窗 — Login Modal
   ========================================================================== */

/* Shared modal structure from distill-shared.css — extended here */
.login-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(10, 20, 36, .55);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: overlay-in var(--zd-duration-normal) var(--zd-ease-out);
}

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

@keyframes overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.login-modal {
  background: var(--zd-paper);
  border-radius: var(--zd-radius-panel);
  box-shadow: var(--zd-shadow-floating);
  max-width: 440px;
  width: 90vw;
  animation: modal-in var(--zd-duration-normal) var(--zd-ease-out);
  overflow: hidden;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(.95) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.login-modal .modal-header {
  padding: var(--zd-space-8) var(--zd-space-6) var(--zd-space-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

.login-modal .modal-close {
  position: absolute;
  top: var(--zd-space-4);
  right: var(--zd-space-4);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--zd-muted);
  cursor: pointer;
  border: none;
  background: none;
  font-size: 1.25rem;
  transition: all var(--zd-duration-fast) var(--zd-ease-out);
  font-family: inherit;
}

.login-modal .modal-close:hover {
  background: var(--zd-line);
  color: var(--zd-ink);
}

.login-modal .login-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--zd-radius-appicon);
  background: linear-gradient(145deg, var(--zd-navy-900) 0%, var(--zd-navy-900) 40%, var(--zd-navy-950) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--zd-space-3);
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}

.login-modal .login-logo svg {
  width: 24px;
  height: 26px;
}

.login-modal .login-logo .drop-body {
  fill: url(#zd-drop-grad);
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
}

.login-modal .login-logo .drop-highlight {
  fill: rgba(255,255,255,.25);
}

.login-modal .modal-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--zd-ink);
}

.login-modal .modal-header p {
  font-size: 0.825rem;
  color: var(--zd-muted);
  margin-bottom: 0;
}

.login-modal .modal-body {
  padding: var(--zd-space-4) var(--zd-space-6) var(--zd-space-6);
}

/* Google OAuth button */
.login-google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--zd-space-3);
  width: 100%;
  height: 46px;
  border-radius: var(--zd-radius-button);
  border: 1.5px solid var(--zd-line);
  background: var(--zd-paper);
  color: var(--zd-text);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--zd-duration-fast) var(--zd-ease-out);
  font-family: inherit;
  margin-bottom: var(--zd-space-5);
}

.login-google-btn:hover {
  background: var(--zd-cloud);
  border-color: var(--zd-mint-300);
}

.login-google-btn:active {
  background: var(--zd-line);
}

.login-google-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Separator */
.login-divider {
  display: flex;
  align-items: center;
  gap: var(--zd-space-4);
  margin-bottom: var(--zd-space-5);
  color: var(--zd-dim);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--zd-line);
}

/* Login extra links */
.login-extra {
  text-align: center;
  margin-top: var(--zd-space-5);
  font-size: 0.85rem;
  color: var(--zd-muted);
}

.login-extra a {
  color: var(--zd-mint-500);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--zd-duration-fast) var(--zd-ease-out);
}

.login-extra a:hover {
  text-decoration: underline;
  color: var(--zd-mint-600);
}

/* ==========================================================================
   §3 插件连接页 — Extension Connect
   ========================================================================== */

.extension-connect-page {
  background: var(--zd-cloud);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--zd-space-6);
}

.extension-connect-card {
  background: var(--zd-paper);
  border-radius: var(--zd-radius-panel);
  box-shadow: var(--zd-shadow-md);
  max-width: 480px;
  width: 100%;
  padding: var(--zd-space-10) var(--zd-space-8);
  text-align: center;
  border: 1px solid var(--zd-line);
}

.extension-connect-card .conn-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--zd-radius-appicon);
  background: linear-gradient(145deg, var(--zd-navy-900) 0%, var(--zd-navy-900) 40%, var(--zd-navy-950) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--zd-space-5);
  box-shadow: 0 4px 20px rgba(0,0,0,.25);
}

.extension-connect-card .conn-logo svg {
  width: 28px;
  height: 30px;
}

.extension-connect-card .conn-logo .drop-body {
  fill: url(#zd-drop-grad);
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.3));
}

.extension-connect-card .conn-logo .drop-highlight {
  fill: rgba(255,255,255,.25);
}

.extension-connect-card h1 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--zd-ink);
  margin-bottom: var(--zd-space-2);
  letter-spacing: -0.01em;
}

.extension-connect-card .conn-subtitle {
  font-size: 0.9rem;
  color: var(--zd-muted);
  margin-bottom: var(--zd-space-8);
}

/* Pairing code */
.extension-connect-card .pairing-code-box {
  background: var(--zd-navy-900);
  border-radius: var(--zd-radius-md);
  padding: var(--zd-space-6) var(--zd-space-4);
  margin-bottom: var(--zd-space-8);
}

.extension-connect-card .pairing-code-box .pair-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--zd-space-3);
  font-weight: 600;
}

.extension-connect-card .pairing-code-box .pair-code {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--zd-mint-500);
  letter-spacing: 0.15em;
  font-family: var(--zd-mono);
  user-select: all;
}

/* Steps */
.extension-connect-card .conn-steps {
  text-align: left;
  margin-bottom: var(--zd-space-8);
  padding: 0;
  list-style: none;
}

.extension-connect-card .conn-steps li {
  display: flex;
  align-items: flex-start;
  gap: var(--zd-space-3);
  padding: var(--zd-space-3) 0;
  font-size: 0.9rem;
  color: var(--zd-text);
  line-height: 1.5;
}

.extension-connect-card .conn-steps li .step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--zd-mint-100);
  color: var(--zd-mint-600);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Trust badge */
.extension-connect-card .trust-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--zd-space-2);
  font-size: 0.8rem;
  color: var(--zd-dim);
  padding: var(--zd-space-3);
  background: var(--zd-mint-50);
  border-radius: var(--zd-radius-xs);
  margin-bottom: var(--zd-space-6);
}

.extension-connect-card .trust-note svg {
  width: 16px;
  height: 16px;
  color: var(--zd-mint-500);
  flex-shrink: 0;
}

/* ==========================================================================
   §4 额度条 — Quota Bar
   ========================================================================== */

.quota-bar-container {
  background: var(--zd-paper);
  border-radius: var(--zd-radius-card);
  border: 1px solid var(--zd-line);
  box-shadow: var(--zd-shadow-card);
  padding: var(--zd-space-5) var(--zd-space-6);
}

.quota-bar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--zd-space-3);
}

.quota-bar-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--zd-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.quota-bar-amount {
  display: flex;
  align-items: center;
  gap: var(--zd-space-2);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--zd-ink);
}

.quota-bar-amount .quota-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* --- Progress bar --- */
.quota-bar-track {
  width: 100%;
  height: 10px;
  background: var(--zd-line);
  border-radius: var(--zd-radius-pill);
  overflow: hidden;
  position: relative;
}

.quota-bar-fill {
  height: 100%;
  border-radius: var(--zd-radius-pill);
  transition: width var(--zd-duration-slow) var(--zd-ease-out);
}

/* State: sufficient (green) */
.quota-bar-container.sufficient .quota-bar-fill {
  background: linear-gradient(90deg, var(--zd-mint-500), var(--zd-mint-400));
}

.quota-bar-container.sufficient .quota-bar-amount {
  color: var(--zd-mint-600);
}

/* State: low (amber, < 5 remaining) */
.quota-bar-container.low .quota-bar-fill {
  background: linear-gradient(90deg, var(--zd-amber-500), #FBBF24);
}

.quota-bar-container.low .quota-bar-amount {
  color: var(--zd-amber-500);
}

.quota-bar-container.low {
  border-color: var(--zd-amber-500);
  background: var(--zd-amber-100);
}

/* State: exhausted (red, 0 remaining) */
.quota-bar-container.exhausted .quota-bar-fill {
  background: linear-gradient(90deg, var(--zd-rose-500), #F87171);
  width: 100% !important;
}

.quota-bar-container.exhausted .quota-bar-amount {
  color: var(--zd-rose-500);
}

.quota-bar-container.exhausted {
  border-color: var(--zd-rose-500);
  background: var(--zd-rose-100);
}

/* Buy more link */
.quota-bar-buy {
  margin-top: var(--zd-space-3);
  text-align: right;
}

.quota-bar-buy a {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--zd-mint-500);
  text-decoration: none;
  transition: color var(--zd-duration-fast) var(--zd-ease-out);
}

.quota-bar-buy a:hover {
  color: var(--zd-mint-600);
  text-decoration: underline;
}

.quota-bar-container.exhausted .quota-bar-buy a {
  color: var(--zd-rose-500);
}

/* ==========================================================================
   §5 响应式 — Account Pages
   ========================================================================== */

@media (max-width: 767px) {
  .pricing-hero {
    padding: var(--zd-space-8) var(--zd-space-4) var(--zd-space-6);
  }

  .pricing-hero .section-heading {
    font-size: 1.5rem;
  }

  .pricing-card {
    padding: var(--zd-space-6) var(--zd-space-5);
  }

  .pricing-card .plan-price {
    font-size: 2rem;
  }

  .faq-section {
    padding: var(--zd-space-8) var(--zd-space-4);
  }

  .faq-question {
    font-size: 0.9375rem;
  }

  .extension-connect-card {
    padding: var(--zd-space-8) var(--zd-space-5);
  }

  .extension-connect-card .pair-code {
    font-size: 2rem;
  }

  .login-modal {
    width: 95vw;
    max-width: none;
  }

  .login-modal .modal-header {
    padding: var(--zd-space-6) var(--zd-space-5) var(--zd-space-2);
  }

  .login-modal .modal-body {
    padding: var(--zd-space-3) var(--zd-space-5) var(--zd-space-5);
  }
}

@media (max-width: 420px) {
  .pricing-hero .section-heading {
    font-size: 1.3rem;
  }

  .extension-connect-card {
    padding: var(--zd-space-6) var(--zd-space-4);
    border-radius: var(--zd-radius-md);
  }

  .extension-connect-card .pair-code {
    font-size: 1.75rem;
  }

  .quota-bar-container {
    padding: var(--zd-space-4);
  }
}