/* ── Shared responsive layout tokens ── */
:root {
  --page-padding: 24px;
  --card-max-width: 420px;
  --card-nav-space: 0px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --control-top: calc(12px + var(--safe-top));
  --control-side: calc(12px + var(--safe-right));
  --control-left: calc(12px + var(--safe-left));
}

html {
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body {
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  padding-top: calc(var(--page-padding) + var(--safe-top));
  padding-right: calc(var(--page-padding) + var(--safe-right));
  padding-bottom: calc(var(--page-padding) + var(--safe-bottom));
  padding-left: calc(var(--page-padding) + var(--safe-left));
}

.ambient-canvas,
.trail-canvas {
  width: 100%;
  height: 100%;
  max-width: 100vw;
  max-height: 100vh;
  max-height: 100dvh;
}

.app-shell {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: visible;
}

.profile-card-shell {
  width: 100%;
  max-width: var(--card-max-width);
  margin-inline: auto;
  box-sizing: border-box;
  overflow: visible;
}

.card-viewport {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  border-radius: var(--radius);
}

.card-panel {
  min-height: 0;
}

/* ── Small mobile: up to 480px ── */
@media (max-width: 480px) {
  :root {
    --page-padding: 16px;
    --card-max-width: min(420px, 74vw);
    --card-nav-space: 0px;
    --mobile-profile-scale: 1.04;
  }

  .profile-assembly {
    position: relative;
    width: 100%;
    transform-origin: center top;
    margin-bottom: 16px;
  }

  .showcase-stage {
    padding-inline: max(4px, 1.25vw);
    box-sizing: border-box;
  }

  .card-stage-viewport {
    border-radius: 18px;
  }

  .profile-card-shell .card-viewport {
    overflow: visible;
    border-radius: 18px;
  }

  .card-stage-track > .showcase-card {
    transform: scale(calc(1 / var(--mobile-profile-scale)));
    transform-origin: center top;
    box-shadow: 0 0 0 0.5px rgba(255, 255, 255, 0.05) inset;
    filter: drop-shadow(0 24px 46px rgba(0, 0, 0, 0.38));
  }

  .app-shell {
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: visible;
  }

  .profile-card-stack {
    width: 100%;
    max-width: var(--card-max-width);
    margin-inline: auto;
  }

  .profile-card-shell {
    width: 100%;
    max-width: var(--card-max-width);
    margin-inline: auto;
    padding-inline: var(--card-nav-space);
    overflow: visible;
  }

  .card-nav {
    --card-nav-gap: 3px;
    --card-nav-offset: 4px;
    padding: 12px 4px;
  }

  .card-nav__icon {
    width: 18px;
    height: 18px;
  }

  .card-nav__label {
    font-size: 11px;
    letter-spacing: 0.09em;
  }

  .card-nav--prev .card-nav__label {
    font-size: 9px;
    letter-spacing: 0.07em;
  }

  .card-panel {
    padding: 24px 14px 20px;
    border-radius: 18px;
  }

  .avatar-frame {
    --avatar-size: 88px;
    transform: translateY(8px);
  }

  .avatar-wrapper {
    margin-bottom: 16px;
  }

  .username {
    font-size: clamp(0.95rem, 3.8vw + 0.55rem, 1.22rem);
    margin-bottom: 5px;
    gap: 4px;
  }

  .verified-badge {
    width: 0.92rem;
    height: 0.92rem;
  }

  .bio {
    font-size: 0.78rem;
    line-height: 1.45;
    max-width: 100%;
    margin-bottom: 18px;
  }

  .profile-identities {
    gap: 6px;
    margin-bottom: 16px;
  }

  .identity-pill {
    padding: 4px 9px 4px 6px;
  }

  .identity-pill__icon {
    width: 18px;
    height: 18px;
  }

  .identity-pill__label {
    font-size: 0.68rem;
  }

  .connections-trigger {
    top: var(--control-top);
    left: var(--control-left);
    padding: 6px 10px 6px 8px;
    font-size: 0.7rem;
    gap: 5px;
    max-width: calc(100vw - 120px);
  }

  .connections-trigger__label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .skyyjack-trigger {
    top: var(--control-top);
    font-size: 0.66rem;
    padding: 6px 10px 6px 8px;
    max-width: calc(100vw - 160px);
  }

  .skyyjack-trigger__label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .auth-open-btn {
    top: var(--control-top);
    right: var(--control-side);
    padding: 7px 11px;
    font-size: 0.72rem;
  }

  .toast-container {
    bottom: calc(14px + var(--safe-bottom));
    left: calc(14px + var(--safe-left));
    max-width: min(280px, calc(100vw - 28px - var(--safe-left) - var(--safe-right)));
  }

  .profile-card[data-panel="profile"] {
    transform: none !important;
    animation: none !important;
    opacity: 1;
  }

  .app-shell {
    transition: none;
  }

  .profile-assembly {
    opacity: 0;
    transform: scale(var(--mobile-profile-scale));
    transform-origin: center top;
    animation: profileMobileFadeIn 0.25s ease-out forwards;
  }

  @keyframes profileMobileFadeIn {
    to {
      opacity: 1;
    }
  }

  .stats-heading {
    font-size: 1.22rem;
    margin-bottom: 18px;
  }

  .stats-row {
    padding: 10px 12px;
  }

  .stats-label {
    font-size: 0.62rem;
  }

  .stats-value {
    font-size: 0.78rem;
  }

  .social-links[data-count="1"] .social-btn {
    width: 100%;
    max-width: none;
  }

  .social-links[data-count="2"] {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .social-links[data-count="2"] .social-btn {
    flex: none;
    max-width: none;
    width: 100%;
    padding: 10px 7px;
    font-size: 0.74rem;
    gap: 4px;
  }

  .social-links[data-count="3"],
  .social-links[data-count="4"] {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .social-links[data-count="3"] .social-btn,
  .social-links[data-count="4"] .social-btn {
    flex: none;
    max-width: none;
    width: 100%;
    padding: 10px 7px;
    flex-direction: column;
    gap: 4px;
  }

  .social-links[data-count="3"] .social-label,
  .social-links[data-count="4"] .social-label {
    font-size: 0.64rem;
  }

  .social-links[data-count="2"] .social-icon,
  .social-links[data-count="3"] .social-icon,
  .social-links[data-count="4"] .social-icon {
    font-size: 1.1rem;
  }

  .edit-profile-overlay {
    padding:
      calc(12px + var(--safe-top))
      calc(12px + var(--safe-right))
      calc(12px + var(--safe-bottom))
      calc(12px + var(--safe-left));
    align-items: flex-start;
  }

  .edit-profile-modal {
    max-width: min(440px, calc(100vw - 24px));
    max-height: calc(100dvh - var(--safe-top) - var(--safe-bottom) - 24px);
    padding: 24px 18px 20px;
  }

  .edit-profile-form__input,
  .edit-profile-form__textarea,
  .edit-profile-form__select,
  .auth-form__input {
    font-size: 16px;
  }
}

/* ── Very narrow phones: keep side-nav room ── */
@media (max-width: 360px) {
  :root {
    --card-max-width: min(420px, 72vw);
  }
}

/* ── Mobile / tablet: 481px to 768px ── */
@media (min-width: 481px) and (max-width: 768px) {
  :root {
    --page-padding: 20px;
    --card-max-width: min(420px, calc(100vw - 40px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .profile-card[data-panel="profile"] {
    animation: none !important;
    transform: none !important;
  }

  .profile-assembly {
    animation: none !important;
    opacity: 1 !important;
    transform: scale(var(--mobile-profile-scale)) !important;
  }
}