/* Reusable controls, navigation, feedback and form primitives. */
.topbar {
  --topbar-offset: 14px;
  position: fixed;
  z-index: 100;
  top: calc(var(--topbar-offset) + env(safe-area-inset-top, 0px));
  left: 50%;
  width: min(calc(100% - 28px), var(--max-width));
  min-height: 68px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 9px 10px 9px 19px;
  border: 0;
  background: transparent;
  box-shadow: none;
  transition: top var(--motion-material) var(--ease-material), width var(--motion-material) var(--ease-material), min-height var(--motion-material) var(--ease-material), gap var(--motion-material) var(--ease-material), padding var(--motion-material) var(--ease-material), opacity var(--motion-material), transform var(--motion-material) var(--ease-material);
}

.topbar.scrolled { --topbar-offset: 8px; width: min(calc(100% - 20px), 1160px); }
.topbar.compact { --topbar-offset: 6px; min-height: 58px; gap: 12px; padding-block: 5px; }
.topbar[data-scroll-direction="down"] { transform: translate(-50%, 0); opacity: 1; }
.topbar[data-scroll-direction="up"],
.topbar:focus-within { transform: translate(-50%, 0); opacity: 1; }

.brand { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 10px; padding: 10px 15px; border-radius: var(--radius-card); font-size: 1.04rem; font-weight: 720; letter-spacing: .1em; transition: padding var(--motion-material) var(--ease-material); }
.brand-mark { width: 24px; height: 24px; display: grid; place-items: center; flex: 0 0 auto; }
.brand-mark-image { width: 24px; height: 24px; display: block; }
.desktop-nav { display: flex; align-items: center; gap: 3px; margin: auto; padding: 4px; border-radius: 17px; transition: padding var(--motion-material) var(--ease-material); }
.glass-segmented { position: relative; isolation: isolate; }
.nav-active-lens { position: absolute; z-index: 0; top: 4px; bottom: 4px; left: 0; width: var(--lens-width, 0); transform: translateX(var(--lens-x, 0)); border: 1px solid var(--glass-edge); border-radius: 13px; background: var(--glass-tint-regular); box-shadow: var(--glass-inner-edge), 0 5px 16px rgba(0,0,0,.11); pointer-events: none; transition: transform var(--motion-material) var(--ease-material), width var(--motion-material) var(--ease-material); }
.desktop-nav a { position: relative; z-index: 1; min-height: 44px; display: inline-flex; align-items: center; padding: 8px 13px; border-radius: 13px; color: var(--text-secondary); font-size: .88rem; font-weight: 560; transition: color var(--motion-fast), background var(--motion-fast), box-shadow var(--motion-fast), transform var(--motion-fast); }
.desktop-nav a:hover { color: var(--text); background: var(--glass-tint-hover); }
.desktop-nav a.active,
.desktop-nav a[aria-current="page"] { color: var(--text); }
.nav-count { position: absolute; top: -4px; right: -2px; min-width: 17px; height: 17px; display: grid; place-items: center; padding: 0 4px; border-radius: var(--radius-pill); color: #fff; background: var(--danger); font-size: .64rem; }
.top-actions { display: flex; align-items: center; gap: 8px; padding: 4px; border-radius: var(--radius-card); transition: padding var(--motion-material) var(--ease-material); }
.theme-toggle,
.profile-link { min-height: 44px; display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; border: 1px solid var(--glass-edge); border-radius: var(--radius-control); color: var(--text-secondary); background: rgba(255,255,255,.04); box-shadow: var(--glass-inner-edge); font-size: .82rem; font-weight: 560; transition: color var(--motion-fast), background var(--motion-fast), transform var(--motion-fast); }
.theme-toggle { touch-action: manipulation; -webkit-user-select: none; user-select: none; }
.theme-toggle:hover,
.profile-link:hover { color: var(--text); background: var(--glass-tint-hover); }
.theme-toggle:active,
.profile-link:active { transform: scale(.97); }
.theme-icon { width: 18px; height: 18px; }
html[data-theme="dark"] .theme-moon,
html[data-theme="light"] .theme-sun { display: none; }
.profile-link { padding: 4px 10px 4px 4px; }
.profile-link .avatar { width: 34px; height: 34px; font-size: .72rem; }
.profile-link.active { color: var(--text); background: var(--glass-tint-hover); }
.topbar.compact .brand { padding-block: 7px; }
.topbar.compact .desktop-nav { padding-block: 2px; }
.topbar.compact .top-actions { padding-block: 2px; }
.mobile-nav { display: none; }

.button {
  min-height: var(--control-height);
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--glass-edge);
  border-radius: var(--radius-control);
  color: var(--text);
  background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.025));
  box-shadow: var(--glass-shadow-sm), var(--glass-inner-edge);
  font-weight: 620;
  font-size: .91rem;
  line-height: 1;
  transition: transform var(--motion-fast) var(--ease-spring), background var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), opacity var(--motion-fast);
}
.button:hover { border-color: var(--glass-edge-strong); background: var(--glass-tint-hover); box-shadow: 0 12px 30px rgba(0,0,0,.16), var(--glass-inner-edge); }
.button:active { transform: scale(.97); }
.button:disabled { cursor: not-allowed; opacity: .48; transform: none; }
.button-primary { color: var(--accent-ink); border-color: rgba(255,255,255,.28); background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 90%, #fff), var(--accent-strong)); box-shadow: 0 12px 32px rgba(0,0,0,.19), inset 0 1px 0 rgba(255,255,255,.5), inset 0 -1px 0 rgba(0,0,0,.14); }
.button-primary:hover { background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 94%, #fff), color-mix(in srgb, var(--accent-strong) 88%, #000)); }
.button-quiet { background: rgba(255,255,255,.035); box-shadow: var(--glass-inner-edge); }
.button-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 28%, transparent); background: color-mix(in srgb, var(--danger) 9%, var(--glass-tint-regular)); box-shadow: var(--glass-inner-edge); }
.button-danger:hover { background: color-mix(in srgb, var(--danger) 15%, var(--glass-tint-regular)); }
.button-small { min-height: 44px; padding: 8px 13px; border-radius: 13px; font-size: .83rem; }
.button-large { min-height: 55px; padding: 14px 24px; border-radius: 18px; }
.button-wide { width: 100%; }
.text-button,
.nav-form-button { min-height: 44px; display: inline-flex; align-items: center; padding: 7px; border: 0; color: var(--text-secondary); background: none; font-size: .85rem; }
.text-button:hover,
.nav-form-button:hover { color: var(--text); }
.inline-actions,
.hero-actions,
.connect-actions,
.bottom-actions,
.result-toolbar,
.history-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; }

.toast-stack { position: fixed; z-index: 300; top: 96px; right: 20px; width: min(400px, calc(100% - 30px)); display: grid; gap: 10px; }
.toast { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 15px 16px; border-radius: var(--radius-card); background: var(--glass-tint-strong); font-size: .88rem; animation: toast-in var(--motion-material) var(--ease-spring); }
.toast.success { border-color: color-mix(in srgb, var(--success) 30%, transparent); }
.toast.error,
.toast.warning { border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.toast button { width: 44px; height: 44px; display: grid; place-items: center; flex: 0 0 auto; padding: 0; border: 0; border-radius: 50%; color: var(--text-secondary); background: rgba(255,255,255,.04); }
.notice { display: flex; flex-direction: column; gap: 4px; margin: 14px 0; padding: 16px 18px; border: 1px solid color-mix(in srgb, var(--accent-strong) 24%, transparent); border-radius: var(--radius-control); color: var(--text); background: var(--accent-soft); font-size: .87rem; }
.notice span { color: var(--text-secondary); }
.notice.warning { border-color: color-mix(in srgb, var(--warning) 28%, transparent); background: color-mix(in srgb, var(--warning) 7%, transparent); }
.inline-error,
.error-text { color: var(--danger); font-size: .8rem; }
.confirm-dialog { width: min(440px, calc(100% - 28px)); max-width: none; padding: 0; border: 0; color: var(--text); background: transparent; overflow: visible; }
.confirm-dialog::backdrop { background: rgba(10, 9, 8, .55); backdrop-filter: blur(12px) saturate(92%); -webkit-backdrop-filter: blur(12px) saturate(92%); animation: fade-in var(--motion-fast) both; }
.confirm-dialog[open] { animation: none; }
.confirm-dialog[open] .confirm-surface { transform-origin: var(--origin-x, 50%) var(--origin-y, 50%); animation: dialog-in var(--motion-material) var(--ease-spring) both; }
.confirm-surface { padding: 28px; background: var(--glass-tint-solid); }
.confirm-surface.glass--elevated::after { filter: url("#glass-distortion-strong"); }
.confirm-surface h2 { margin-bottom: 9px; font-size: 1.45rem; }
.confirm-surface p { margin-bottom: 25px; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.dialog-handle { display: none; }

.auth-layout { min-height: calc(100vh - 210px); display: grid; grid-template-columns: 1fr minmax(410px, 520px); align-items: center; gap: clamp(50px, 9vw, 120px); }
.auth-copy h1 { font-size: clamp(3.2rem, 6vw, 5.7rem); }
.auth-copy p { max-width: 600px; font-size: 1.04rem; }
.compact-auth { width: min(100%, 1040px); margin: 0 auto; }
.mini-trust { display: flex; flex-wrap: wrap; gap: 11px 22px; margin-top: 28px; color: var(--text-secondary); font-size: .8rem; }
.form-card { padding: clamp(24px, 4vw, 40px); background: var(--glass-tint-dense); }
.card-heading { margin-bottom: 25px; }
.card-heading h2 { margin: 13px 0 7px; font-size: 2rem; }
.card-heading p { margin: 0; }
.step-badge { display: inline-flex; padding: 6px 10px; border: 1px solid var(--glass-edge); border-radius: var(--radius-pill); color: var(--text); background: var(--accent-soft); font-size: .7rem; font-weight: 680; text-transform: uppercase; letter-spacing: .09em; }
.field { margin-bottom: 19px; }
.field > label:not(:has(input[type="checkbox"])) { display: block; margin: 0 0 8px 3px; color: var(--text-secondary); font-size: .8rem; font-weight: 620; }
.field input:not([type="checkbox"]),
.field select,
.field textarea,
.copy-panel input,
.danger-cards input { width: 100%; min-height: 52px; padding: 12px 15px; border: 1px solid var(--glass-edge); border-radius: var(--radius-control); color: var(--text); background: var(--glass-tint-input); box-shadow: inset 0 2px 8px rgba(0,0,0,.1), inset 0 1px 0 rgba(255,255,255,.055); outline: none; transition: border-color var(--motion-fast), box-shadow var(--motion-fast), background var(--motion-fast); }
.field select {
  -webkit-appearance: none;
  appearance: none;
  padding-right: 46px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-secondary) 50%),
    linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.field select option,
.field select optgroup {
  color: var(--text);
  background-color: var(--canvas-raised);
}
@supports (appearance: base-select) {
  .field select,
  .field select::picker(select) {
    appearance: base-select;
  }
  .field select {
    padding-right: 15px;
    background-image: none;
  }
  .field select::picker-icon {
    color: var(--text-secondary);
    transition: rotate var(--motion-material) var(--ease-material);
  }
  .field select:open::picker-icon { rotate: 180deg; }
  .field select::picker(select) {
    max-block-size: min(360px, 60vh);
    margin-block: 8px;
    padding: 6px;
    overflow-y: auto;
    border: 1px solid var(--glass-edge-strong);
    border-radius: var(--radius-control);
    color: var(--text);
    background: var(--glass-tint-solid);
    box-shadow: var(--glass-shadow-elevated), var(--glass-inner-edge);
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--glass-edge-strong) transparent;
  }
  .field select option {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 10px 12px;
    border-radius: 11px;
    color: var(--text);
    background-color: transparent;
  }
  .field select option:hover,
  .field select option:focus,
  .field select option:checked {
    background-color: var(--glass-tint-hover);
  }
  .field select option:checked { font-weight: 650; }
  .field select option::checkmark {
    order: 1;
    margin-inline-start: auto;
    color: var(--success);
  }
  .field select optgroup { background-color: transparent; }
}
.field textarea { min-height: 135px; resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: var(--text-tertiary); opacity: .84; }
.field input:focus,
.field select:focus,
.field textarea:focus,
.copy-panel input:focus { border-color: var(--glass-edge-strong); background-color: color-mix(in srgb, var(--glass-tint-input) 82%, var(--accent-soft)); box-shadow: 0 0 0 4px var(--accent-soft), inset 0 2px 7px rgba(0,0,0,.08); }
.field input:disabled,
.field select:disabled,
.field textarea:disabled { cursor: not-allowed; opacity: .52; }
.field input:-webkit-autofill { -webkit-text-fill-color: var(--text); transition: background-color 9999s; box-shadow: 0 0 0 1000px var(--glass-tint-solid) inset; }
.field-checkbox label { display: flex; align-items: flex-start; gap: 11px; color: var(--text-secondary); font-size: .87rem; cursor: pointer; }
.field-checkbox input { appearance: none; flex: 0 0 auto; width: 21px; height: 21px; margin: 1px 0 0; border: 1px solid var(--glass-edge-strong); border-radius: 7px; background: var(--glass-tint-input); box-shadow: inset 0 1px 4px rgba(0,0,0,.12); }
.field-checkbox input:checked { border-color: var(--accent); background: var(--accent-strong) url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='m5 12 4 4L19 6' fill='none' stroke='white' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/15px no-repeat; }
.field-checkbox input:focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 2px; }
.help-text { display: block; margin: 7px 3px 0; color: var(--text-tertiary); font-size: .77rem; }
.error-text { display: block; margin: 6px 3px; }
.form-alert { margin-bottom: 16px; padding: 14px; border: 1px solid color-mix(in srgb, var(--danger) 27%, transparent); border-radius: var(--radius-control); color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); font-size: .84rem; }
.form-alt { margin: 22px 0 0; text-align: center; font-size: .82rem; }
.form-links { display: flex; justify-content: space-between; gap: 14px; margin-top: 22px; font-size: .8rem; }
.form-alt a,
.form-links a { color: var(--cyan); }

.provider-mark { width: 100%; height: 100%; object-fit: contain; }
.provider-logo.large .provider-mark { width: 56px; height: 56px; }
.provider-mark-fallback { display: grid; place-items: center; font-weight: 720; }

@media (max-width: 1050px) {
  body { padding-bottom: calc(92px + env(safe-area-inset-bottom)); }
  .desktop-nav, .desktop-only { display: none !important; }
  .topbar.compact { min-height: 68px; gap: 22px; padding: 9px 10px 9px 19px; }
  .topbar.compact .brand { padding: 10px 15px; }
  .topbar.compact .top-actions { padding: 4px; }
  .topbar.scrolled { --topbar-offset: 14px; width: min(calc(100% - 28px), var(--max-width)); }
  .top-actions { margin-left: auto; }
  .mobile-nav {
    --indicator-x: 6px;
    --indicator-width: calc(20% - 2.4px);
    position: fixed;
    z-index: 150;
    left: 50%;
    bottom: calc(10px + env(safe-area-inset-bottom));
    width: min(calc(100% - 20px), 620px);
    min-height: 70px;
    transform: translateX(-50%);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    align-items: center;
    padding: 6px;
    overflow: hidden;
    border-radius: var(--radius-panel);
    transition: min-height var(--motion-material) var(--ease-material), background var(--motion-material), transform var(--motion-material) var(--ease-material);
  }
  .mobile-nav[data-nav-index="0"] { --indicator-x: 6px; }
  .mobile-nav[data-nav-index="1"] { --indicator-x: calc(20% + 3.6px); }
  .mobile-nav[data-nav-index="2"] { --indicator-x: calc(40% + 1.2px); }
  .mobile-nav[data-nav-index="3"] { --indicator-x: calc(60% - 1.2px); }
  .mobile-nav[data-nav-index="4"] { --indicator-x: calc(80% - 3.6px); }
  html[data-mobile-nav-origin="0"] .mobile-nav { --indicator-x: 6px; }
  html[data-mobile-nav-origin="1"] .mobile-nav { --indicator-x: calc(20% + 3.6px); }
  html[data-mobile-nav-origin="2"] .mobile-nav { --indicator-x: calc(40% + 1.2px); }
  html[data-mobile-nav-origin="3"] .mobile-nav { --indicator-x: calc(60% - 1.2px); }
  html[data-mobile-nav-origin="4"] .mobile-nav { --indicator-x: calc(80% - 3.6px); }
  .mobile-nav .nav-active-lens { position: absolute; z-index: 0; top: 6px; bottom: 6px; left: var(--indicator-x); width: var(--indicator-width); transform: none; border: 1px solid var(--glass-edge); border-radius: 21px; background: var(--glass-tint-hover); box-shadow: var(--glass-inner-edge), 0 5px 16px rgba(0,0,0,.11); transition: left var(--motion-material) var(--ease-material), width var(--motion-material) var(--ease-material); }
  .mobile-nav.nav-lens-primed .nav-active-lens { transition: none; }
  .mobile-nav.compact { min-height: 58px; --glass-surface-tint: var(--glass-tint-strong); }
  .mobile-nav a { position: relative; z-index: 1; height: 56px; min-height: 56px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 3px; border-radius: 20px; color: var(--text-secondary); transition: height var(--motion-material) var(--ease-material), min-height var(--motion-material) var(--ease-material), gap var(--motion-material) var(--ease-material), color var(--motion-fast), transform var(--motion-fast); }
  .mobile-nav a.active, .mobile-nav a[aria-current="page"] { color: var(--text); }
  .mobile-nav a:active { transform: scale(.92); }
  .mobile-nav .icon { width: 21px; height: 21px; }
  .mobile-nav small { max-height: 1.2em; opacity: 1; transform: translateY(0); font-size: .64rem; font-weight: 560; transition: max-height var(--motion-material) var(--ease-material), opacity var(--motion-fast), transform var(--motion-material) var(--ease-material); }
  .mobile-nav .create-orb { width: auto; height: 56px; min-height: 56px; margin: 0; gap: 4px; border: 0; border-radius: 20px; color: var(--text-secondary); background: transparent; box-shadow: none; }
  .mobile-nav .create-mark { flex: 0 0 30px; width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--glass-edge-strong); border-radius: 11px; color: var(--text-secondary); background: linear-gradient(145deg, rgba(255,255,255,.11), rgba(255,255,255,.025)), var(--glass-tint-regular); box-shadow: 0 6px 16px rgba(0,0,0,.12), var(--glass-inner-edge); transition: color var(--motion-fast), background var(--motion-fast), border-color var(--motion-fast), box-shadow var(--motion-fast), transform var(--motion-fast) var(--ease-spring); }
  .mobile-nav .create-mark .icon { width: 18px; height: 18px; }
  .mobile-nav .create-orb small { position: static; color: inherit; }
  .mobile-nav .create-orb.active,
  .mobile-nav .create-orb[aria-current="page"] { color: var(--text); }
  .mobile-nav .create-orb.active .create-mark,
  .mobile-nav .create-orb[aria-current="page"] .create-mark { color: var(--accent-ink); border-color: rgba(255,255,255,.3); background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 92%, #fff), var(--accent-strong)); box-shadow: 0 8px 20px rgba(0,0,0,.18), inset 0 1px 0 rgba(255,255,255,.48); }
  .mobile-nav.compact a { height: 46px; min-height: 46px; gap: 0; }
  .mobile-nav.compact small { max-height: 0; opacity: 0; transform: translateY(4px); overflow: hidden; }
  .mobile-nav.compact .create-orb { width: auto; height: 46px; min-height: 46px; margin: 0; }
}

@media (pointer: coarse) and (max-width: 1050px) {
  .brand,
  .top-actions,
  .mobile-nav { --glass-surface-blur: var(--glass-blur-clear); }
}

@media (max-width: 780px) {
  .topbar,
  .topbar.compact,
  .topbar.scrolled { --topbar-offset: 9px; }
  .topbar,
  .topbar.compact { width: calc(100% - 18px); min-height: 62px; gap: 22px; padding: 8px 9px 8px 0; }
  .topbar.scrolled { width: calc(100% - 18px); }
  .theme-toggle { width: 44px; height: 44px; justify-content: center; padding: 0; }
  .theme-label { display: none; }
  .profile-link { padding-right: 4px; }
}

@media (max-width: 480px) {
  .top-actions { gap: 5px; }
  .top-actions .button { display: none; }
  .brand { font-size: .94rem; }
  .mobile-nav { border-radius: 24px; }
  .mobile-nav small { font-size: .6rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .topbar[data-scroll-direction="down"] { transform: translate(-50%, 0); opacity: 1; }
}

@media (prefers-contrast: more) {
  :root { --text-secondary: #eeeae4; --glass-edge: rgba(255,255,255,.42); }
  html[data-theme="light"] { --text-secondary: #3a352f; --glass-edge: rgba(25,21,18,.38); }
  .button, .theme-toggle, .profile-link { border-width: 2px; }
}

@media (prefers-reduced-transparency: reduce) {
  .confirm-dialog::backdrop { backdrop-filter: none; -webkit-backdrop-filter: none; }
}

@supports not ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))) {
  .confirm-dialog::backdrop { backdrop-filter: none; -webkit-backdrop-filter: none; }
}