/* ===== RESET & BASE ===== */
    *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #fafafa;
      background: #191919;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    img { max-width: 100%; display: block; }

    /* ===== CSS VARIABLES ===== */
    :root {
      --primary: #ef3e3a;
      --primary-dark: #B54124;
      --gradient: linear-gradient(142.56deg, #FF3A36, #F74E20);
      --bg-dark: #191919;
      --bg-dark-2: #1e1e1e;
      --bg-dark-3: #282828;
      --bg-white: #ffffff;
      --bg-light: #f5f7fa;
      --text-white: #fafafa;
      --text-sub: #a0a0a0;
      --text-muted: #C2C2C2;
      --text-dark: #1f2937;
      --border-dark: #323232;
      --max-width: 1200px;
    }

    /* ===== CONTAINER ===== */
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== NAV ===== */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(25, 25, 25, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-dark);
    }
    .nav-inner {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 24px;
      font-weight: 900;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: 0.5px;
    }
    .nav-logo img {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      flex-shrink: 0;
      -webkit-text-fill-color: initial;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--text-white); }
    .nav-cta {
      background: var(--gradient);
      color: #fff !important;
      padding: 8px 20px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 13px;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 12px rgba(239, 62, 58, 0.25);
    }
    .nav-cta:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(239, 62, 58, 0.35);
    }

    /* Mobile nav */
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
    .nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text-white); margin: 5px 0; transition: 0.3s; border-radius: 2px; }

    /* ===== CAPTION / TITLE / TEXT ===== */
    .section-caption {
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--text-sub);
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
    }
    .section-text {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.7;
      max-width: 540px;
    }

    /* ===== HERO ===== */
    .hero {
      padding: 140px 0 80px;
      background: var(--bg-dark);
      overflow: hidden;
    }
    .hero-inner {
      display: flex;
      align-items: center;
      gap: 60px;
    }
    .hero-content { flex: 1; }
    .hero-content .section-title { color: var(--text-white); font-size: 48px; }
    .hero-content .section-text { color: rgba(250,250,250,0.6); }
    .hero-cta {
      display: inline-block;
      margin-top: 32px;
      padding: 14px 36px;
      background: var(--gradient);
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      border-radius: 28px;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 6px 20px rgba(239, 62, 58, 0.3);
    }
    .hero-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(239, 62, 58, 0.4);
    }
    .hero-sub {
      margin-top: 12px;
      font-size: 13px;
      color: var(--text-sub);
    }
    .hero-display {
      flex: 1;
      position: relative;
    }
    .hero-display .hero-mockup {
      width: 100%;
      border-radius: 16px;
      box-shadow: 0 20px 60px rgba(0,0,0,0.5);
      background: var(--bg-dark-2);
      aspect-ratio: 16/10;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      border: 1px solid var(--border-dark);
    }
    .hero-mockup-content {
      text-align: center;
      padding: 40px;
    }
    .hero-mockup-content .mockup-icon {
      font-size: 64px;
      margin-bottom: 16px;
    }
    .hero-mockup-content p {
      color: var(--text-sub);
      font-size: 14px;
    }

    /* ===== PLATFORMS ===== */
    .platforms {
      padding: 40px 0 80px;
      background: var(--bg-dark);
    }
    .platforms-grid {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 48px;
      flex-wrap: wrap;
      margin-top: 20px;
    }
    .platform-item {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-sub);
      font-size: 18px;
      font-weight: 600;
      transition: color 0.2s;
    }
    .platform-item:hover { color: var(--text-white); }
    .platform-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
    }

    /* ===== FEATURE SECTIONS ===== */
    .feature-section {
      padding: 100px 0;
    }
    .feature-section.light {
      background: var(--bg-white);
      color: var(--text-dark);
    }
    .feature-section.light .section-caption { color: var(--text-sub); }
    .feature-section.light .section-title { color: var(--text-dark); }
    .feature-section.light .section-text { color: #6b7280; }
    .feature-section.dark {
      background: var(--bg-dark);
    }
    .feature-inner {
      display: flex;
      align-items: center;
      gap: 80px;
    }
    .feature-inner.reverse { flex-direction: row-reverse; }
    .feature-content { flex: 1; }
    .feature-display {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .feature-card {
      width: 100%;
      max-width: 480px;
      aspect-ratio: 4/3;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 80px;
      box-shadow: 0 16px 48px rgba(0,0,0,0.15);
    }
    .feature-section.light .feature-card {
      background: var(--bg-light);
      border: 1px solid #e5e7eb;
    }
    .feature-section.dark .feature-card {
      background: var(--bg-dark-2);
      border: 1px solid var(--border-dark);
    }

    /* ===== HOW IT WORKS ===== */
    .howitworks {
      padding: 100px 0;
      background: var(--bg-dark-2);
    }
    .howitworks .section-title { text-align: center; }
    .howitworks .section-caption { text-align: center; }
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      margin-top: 48px;
    }
    .step-card {
      background: var(--bg-dark-3);
      border: 1px solid var(--border-dark);
      border-radius: 16px;
      padding: 32px;
      text-align: center;
      transition: transform 0.2s;
    }
    .step-card:hover { transform: translateY(-4px); }
    .step-number {
      display: inline-flex;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--gradient);
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .step-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-white);
    }
    .step-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* ===== AUTH SECTION ===== */
    .auth-section {
      padding: 100px 0;
      background: var(--bg-dark);
    }
    .auth-container {
      max-width: 440px;
      margin: 0 auto;
      text-align: center;
    }
    .auth-container .section-title { font-size: 32px; }
    .auth-container .section-text {
      margin: 0 auto 32px;
      text-align: center;
    }
    .auth-card {
      background: var(--bg-dark-2);
      border: 1px solid var(--border-dark);
      border-radius: 16px;
      padding: 32px;
    }
    .auth-card .auth-user-info {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
    }
    .auth-avatar {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 800;
      color: #fff;
    }
    .auth-email {
      font-size: 14px;
      color: var(--text-sub);
      word-break: break-all;
    }
    .auth-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-white);
    }
    .auth-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: #28a745;
      margin-top: 4px;
    }
    .auth-status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #28a745;
    }
    .btn-google {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      width: 100%;
      padding: 14px 24px;
      background: #fff;
      color: #1f2937;
      font-size: 15px;
      font-weight: 600;
      border: none;
      border-radius: 12px;
      cursor: pointer;
      transition: all 0.2s;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .btn-google:hover {
      background: #f9fafb;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    }
    .btn-google svg { flex-shrink: 0; }
    .btn-logout {
      margin-top: 20px;
      padding: 10px 24px;
      background: transparent;
      color: var(--text-sub);
      border: 1px solid var(--border-dark);
      border-radius: 8px;
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s;
    }
    .btn-logout:hover {
      color: var(--primary);
      border-color: var(--primary);
    }
    .auth-synced-msg {
      margin-top: 16px;
      padding: 10px 16px;
      background: rgba(40, 167, 69, 0.1);
      border: 1px solid rgba(40, 167, 69, 0.2);
      border-radius: 8px;
      font-size: 13px;
      color: #28a745;
    }
    .auth-loading {
      padding: 20px;
      text-align: center;
      color: var(--text-sub);
      font-size: 14px;
    }
    .auth-tabs {
      display: flex;
      margin-bottom: 24px;
      border-bottom: 1px solid var(--border-dark);
    }
    .auth-tab {
      flex: 1;
      padding: 12px;
      background: none;
      border: none;
      color: var(--text-sub);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: color 0.2s, border-color 0.2s;
      border-bottom: 2px solid transparent;
      font-family: inherit;
    }
    .auth-tab.active {
      color: var(--text-white);
      border-bottom-color: var(--primary);
    }
    .auth-tab:hover { color: var(--text-white); }
    .auth-form { display: flex; flex-direction: column; gap: 12px; }
    .auth-input {
      width: 100%;
      padding: 12px 16px;
      background: var(--bg-dark-3);
      border: 1px solid var(--border-dark);
      border-radius: 10px;
      color: var(--text-white);
      font-size: 14px;
      font-family: inherit;
      outline: none;
      transition: border-color 0.2s;
    }
    .auth-input::placeholder { color: var(--text-sub); }
    .auth-input:focus { border-color: var(--primary); }
    .auth-btn {
      width: 100%;
      padding: 12px;
      background: var(--gradient);
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      font-family: inherit;
      transition: transform 0.2s, box-shadow 0.2s;
      margin-top: 4px;
    }
    .auth-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(239, 62, 58, 0.3);
    }
    .auth-btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }
    .auth-divider {
      display: flex;
      align-items: center;
      gap: 12px;
      margin: 16px 0;
      color: var(--text-sub);
      font-size: 13px;
    }
    .auth-divider::before,
    .auth-divider::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--border-dark);
    }
    .auth-error {
      padding: 10px 14px;
      background: rgba(239, 62, 58, 0.1);
      border: 1px solid rgba(239, 62, 58, 0.25);
      border-radius: 8px;
      font-size: 13px;
      color: #ef3e3a;
      text-align: left;
    }
    .auth-success {
      padding: 10px 14px;
      background: rgba(40, 167, 69, 0.1);
      border: 1px solid rgba(40, 167, 69, 0.25);
      border-radius: 8px;
      font-size: 13px;
      color: #28a745;
      text-align: left;
    }
    .auth-link {
      background: none;
      border: none;
      color: var(--text-sub);
      font-size: 13px;
      cursor: pointer;
      font-family: inherit;
      transition: color 0.2s;
      padding: 0;
    }
    .auth-link:hover { color: var(--primary); }
    .nav-user-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--text-white);
      font-weight: 600;
      font-size: 14px;
    }
    .nav-user-avatar {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 800;
      color: #fff;
    }

    /* ===== FOOTER ===== */
    .footer {
      padding: 60px 0 40px;
      background: var(--bg-dark-2);
      border-top: 1px solid var(--border-dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }
    .footer-brand .nav-logo { font-size: 24px; margin-bottom: 12px; }
    .footer-brand p { font-size: 13px; color: var(--text-sub); max-width: 280px; }
    .footer-col h4 {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 16px;
    }
    .footer-col a {
      display: block;
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 8px;
      transition: color 0.2s;
    }
    .footer-col a:hover { color: var(--text-white); }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 20px;
      border-top: 1px solid var(--border-dark);
      text-align: center;
      font-size: 12px;
      color: var(--text-sub);
    }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(25,25,25,0.98);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border-dark);
      }
      .nav-toggle { display: block; }

      .hero { padding: 100px 0 60px; }
      .hero-inner { flex-direction: column; gap: 40px; }
      .hero-content .section-title { font-size: 32px; }
      .hero-display { width: 100%; }

      .feature-inner, .feature-inner.reverse { flex-direction: column; gap: 40px; }
      .section-title { font-size: 28px; }

      .steps-grid { grid-template-columns: 1fr; }

      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

      .platforms-grid { gap: 24px; }
      .platform-item { font-size: 15px; }
    }
/* ===== SHARED SECONDARY PAGES ===== */
.page-centered {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 96px 20px 40px;
  background: var(--bg-dark);
}
.page-centered .container {
  max-width: 480px;
  width: 100%;
  padding: 0;
}
.page-centered .card,
.feedback-container {
  width: 100%;
  max-width: 480px;
  background: var(--bg-dark-2);
  border: 1px solid var(--border-dark);
  border-radius: 16px;
  padding: 36px 32px 32px;
  color: var(--text-white);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.page-centered .card {
  text-align: center;
}
.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text-white);
  font-size: 28px;
  font-weight: 900;
}
.logo img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  flex-shrink: 0;
}
.logo-text,
.feedback-container .logo {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-title,
.feedback-title {
  color: var(--text-white);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  margin-bottom: 8px;
}
.page-desc,
.feedback-desc,
.subtitle {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
  margin-bottom: 26px;
}
.debug-info,
.room-info {
  background: var(--bg-dark-3);
  border: 1px solid var(--border-dark);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 24px;
  color: var(--text-sub);
  font-size: 13px;
}
.debug-info p {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 5px 0;
}
.debug-info p + p {
  border-top: 1px solid var(--border-dark);
}
.debug-label {
  color: var(--text-muted);
  font-weight: 700;
  flex-shrink: 0;
}
.debug-value,
.room-info .room-id {
  color: var(--text-white);
  text-align: right;
  word-break: break-all;
  font-family: SFMono-Regular, Consolas, Menlo, monospace;
  font-size: 12px;
}
.room-info .room-id {
  font-size: 15px;
  font-weight: 700;
}
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  color: var(--text-white);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 7px;
}
.form-input,
.form-textarea,
.textarea-box {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-dark-3);
  border: 1px solid var(--border-dark);
  border-radius: 10px;
  color: var(--text-white);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input::placeholder,
.form-textarea::placeholder,
.textarea-box::placeholder {
  color: var(--text-sub);
}
.form-input:focus,
.form-textarea:focus,
.textarea-box:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(239, 62, 58, 0.12);
}
.form-textarea,
.textarea-box {
  line-height: 1.5;
  resize: vertical;
}
.submit-btn,
.btn,
.store-btn {
  font-family: inherit;
}
.submit-btn,
.btn-primary {
  width: 100%;
  padding: 13px 18px;
  background: var(--gradient);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 6px 20px rgba(239, 62, 58, 0.26);
}
.submit-btn:hover,
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(239, 62, 58, 0.35);
}
.submit-btn:disabled,
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn {
  display: block;
  text-align: center;
  text-decoration: none;
}
.btn-secondary,
.store-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  background: transparent;
  color: var(--text-white);
  border: 1px solid var(--border-dark);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn-secondary:hover,
.store-btn:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.store-buttons,
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.store-buttons {
  margin-top: 20px;
}
.store-btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.checkbox-group {
  margin-bottom: 24px;
}
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-white);
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--primary);
}
.status,
.msg {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 16px;
  text-align: center;
}
.status.error,
.msg.error,
.error-box {
  color: #ff6b6b;
}
.msg.success {
  color: #51cf66;
}
.error-box {
  display: none;
  padding: 10px 14px;
  background: rgba(239, 62, 58, 0.1);
  border: 1px solid rgba(239, 62, 58, 0.25);
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 14px;
}
.success-box {
  display: none;
  text-align: center;
  padding: 28px 10px 8px;
}
.success-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #28a745, #51cf66);
  color: #fff;
}
.success-icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
}
.success-title {
  color: var(--text-white);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 8px;
}
.success-msg {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.6;
}
.lang-switcher,
.meta-info {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 24px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text-sub);
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color 0.2s;
}
.lang-btn:hover,
.lang-btn.active {
  color: var(--primary);
}
.lang-btn.active {
  font-weight: 700;
}
.meta-info {
  padding-top: 16px;
  border-top: 1px solid var(--border-dark);
}
.meta-tag {
  color: var(--text-sub);
  background: var(--bg-dark-3);
  border: 1px solid var(--border-dark);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 11px;
}
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}
.hidden {
  display: none !important;
}
.loading-pulse {
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
@media (max-width: 520px) {
  .page-centered {
    align-items: flex-start;
    padding: 84px 16px 28px;
  }
  .page-centered .card,
  .feedback-container {
    padding: 28px 20px 24px;
  }
  .page-title,
  .feedback-title {
    font-size: 21px;
  }
  .debug-info p {
    flex-direction: column;
    gap: 2px;
  }
  .debug-value {
    text-align: left;
  }
}