/* ═══════════════════════════════════════════════════════════════════
   auth-login.css
   Supabase Auth page styles for PowerAgent
   Mirrors CoThou LoginPage.vue dark aesthetic
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Reset & base ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-background-dark: #1a1a1b;
  --color-text-dark: #ffffff;
  --color-text-muted-dark: #d4d4d4e4;
  --color-text-soft-dark: rgba(255, 255, 255, 0.5);
  --color-panel-dark: #1a1a1a;
  --color-border-dark: #444444a8;
  --color-input-dark: #131313;
  --color-input-border-dark: rgba(255, 255, 255, 0.2);
  --color-input-focus-dark: rgba(255, 255, 255, 0.4);
  --color-button-bg-dark: #2f2f2f;
  --color-button-bg-dark-hover: #3a3a3a;
  --color-button-border-dark: #3a3a3a;
  --color-chat-background-dark: #1a1a1b;
  --color-background-light: #fafafa;
  --color-text-light: #333333;
  --color-text-muted-light: #333333e4;
  --color-text-soft-light: rgba(51, 51, 51, 0.56);
  --color-panel-light: #f0f0f0;
  --color-border-light: #bdbdbdcf;
  --color-input-light: #e4e4e4;
  --color-input-border-light: rgba(51, 51, 51, 0.16);
  --color-input-focus-light: rgba(51, 51, 51, 0.3);
  --color-button-bg-light: #ffffff;
  --color-button-bg-light-hover: #f2f2f2;
  --color-button-border-light: #d4d4d4;
  --color-chat-background-light: #fafafa;
  --color-background: var(--color-background-dark);
  --color-text: var(--color-text-dark);
  --color-text-muted: var(--color-text-muted-dark);
  --color-text-soft: var(--color-text-soft-dark);
  --color-panel: var(--color-panel-dark);
  --color-border: var(--color-border-dark);
  --color-input: var(--color-input-dark);
  --color-input-border: var(--color-input-border-dark);
  --color-input-focus: var(--color-input-focus-dark);
  --color-button-bg: var(--color-button-bg-dark);
  --color-button-bg-hover: var(--color-button-bg-dark-hover);
  --color-button-border: var(--color-button-border-dark);
  --color-chat-background: var(--color-chat-background-dark);
  --color-background-hover: color-mix(in srgb, var(--color-border) 50%, transparent);
  --surface-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
  --font-family-main: "Rubik", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.light-mode {
  --color-background: var(--color-background-light);
  --color-text: var(--color-text-light);
  --color-text-muted: var(--color-text-muted-light);
  --color-text-soft: var(--color-text-soft-light);
  --color-panel: var(--color-panel-light);
  --color-border: var(--color-border-light);
  --color-input: var(--color-input-light);
  --color-input-border: var(--color-input-border-light);
  --color-input-focus: var(--color-input-focus-light);
  --color-button-bg: var(--color-button-bg-light);
  --color-button-bg-hover: var(--color-button-bg-light-hover);
  --color-button-border: var(--color-button-border-light);
  --color-chat-background: var(--color-chat-background-light);
  --color-background-hover: color-mix(in srgb, var(--color-border) 50%, transparent);
}

html,
body {
  background-color: var(--color-background);
  color: var(--color-text-muted);
  font-family: var(--font-family-main);
  min-height: 100vh;
  margin: 0;
}

a { color: color-mix(in srgb, var(--color-text) 40%, transparent); text-decoration: underline; }
a:hover { color: color-mix(in srgb, var(--color-text) 60%, transparent); }

/* ─── Page layout ─────────────────────────────────────────────── */
.auth-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-background);
}

.auth-header-shell {
  width: 100%;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 80;
}

.auth-header-wrapper {
  position: relative;
  padding: 12px 24px 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-background) 96%, transparent) 0%, color-mix(in srgb, var(--color-background) 82%, transparent) 72%, transparent 100%);
  backdrop-filter: blur(16px);
}

.auth-header-shell .a0-header-pill {
  align-items: center;
  box-shadow: var(--surface-shadow);
}

.auth-header-shell .a0-header-left,
.auth-header-shell .a0-header-right {
  min-height: var(--a0-header-icon-button-size);
  display: flex;
  align-items: center;
}

.auth-header-shell .a0-header-title {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.auth-header-shell .a0-header-logo {
  align-self: center;
}

.auth-header-shell .a0-theme-toggle {
  align-self: center;
}

.auth-header-shell .a0-theme-toggle__icon--sun {
  transform: translateY(5px) scale(1) rotate(0deg);
}

.auth-header-shell .a0-theme-toggle__icon--moon {
  transform: translateY(5px) scale(0.7) rotate(-24deg);
}

.auth-header-shell .a0-theme-toggle.is-dark .a0-theme-toggle__icon--sun {
  transform: translateY(5px) scale(0.7) rotate(24deg);
}

.auth-header-shell .a0-theme-toggle.is-dark .a0-theme-toggle__icon--moon {
  transform: translateY(5px) scale(1) rotate(0deg);
}

.auth-main {
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 32px;
  padding: 32px 24px 40px;
}

.auth-hero-shell {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: minmax(340px, 430px) minmax(0, 1fr);
  gap: 32px;
  align-items: stretch;
}

.auth-card-wrapper {
  width: 100%;
}

.auth-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
  min-height: 100%;
  padding: 32px 28px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 28px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 88%, transparent) 0%, color-mix(in srgb, var(--color-background) 92%, transparent) 100%);
  box-shadow: var(--surface-shadow);
  backdrop-filter: blur(24px);
}

/* ─── Heading ─────────────────────────────────────────────────── */
.auth-heading {
  text-align: left;
  margin-bottom: 4px;
}
.auth-heading h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  line-height: 1.2;
}
.auth-heading p {
  font-size: 1rem;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
  font-weight: 400;
  margin-top: 8px;
}

.auth-hero-content {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  min-height: 100%;
  padding: 40px;
  border-radius: 32px;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--color-panel) 92%, var(--color-background) 8%) 0%, color-mix(in srgb, var(--color-background) 96%, transparent) 42%, color-mix(in srgb, var(--color-panel) 88%, transparent) 100%);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  box-shadow: var(--surface-shadow), inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-hero-content::before,
.auth-hero-content::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}

.auth-hero-content::before {
  width: 260px;
  height: 260px;
  top: -80px;
  right: -40px;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-border) 18%, transparent) 0%, transparent 72%);
}

.auth-hero-content::after {
  width: 220px;
  height: 220px;
  bottom: -90px;
  left: -60px;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-border) 14%, transparent) 0%, transparent 70%);
}

.auth-hero-copy,
.auth-hero-composer {
  position: relative;
  z-index: 1;
}

.auth-hero-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-hero-copy h2 {
  max-width: 18ch;
  margin-top: 18px;
  color: var(--color-text);
  font-size: clamp(2.6rem, 4vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.auth-hero-line {
  display: block;
  white-space: nowrap;
}

.auth-hero-text {
  max-width: 34rem;
  margin-top: 20px;
  color: color-mix(in srgb, var(--color-text) 72%, transparent);
  font-size: 1.05rem;
  line-height: 1.75;
}

.auth-hero-composer {
  margin-top: auto;
}

.auth-use-cases {
  width: min(1180px, 100%);
}

.auth-use-cases-shell {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 32px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 32px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 96%, transparent) 100%);
  box-shadow: var(--surface-shadow);
}

.auth-use-cases-copy {
  max-width: 58rem;
}

.auth-use-cases-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-use-cases-copy h3 {
  margin-top: 16px;
  color: var(--color-text);
  font-size: clamp(2rem, 3vw, 3.3rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.auth-use-cases-text {
  margin-top: 14px;
  max-width: 46rem;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-use-cases-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 4px;
}

.auth-use-case-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 72%, transparent);
  color: color-mix(in srgb, var(--color-text) 62%, transparent);
  font: inherit;
  font-size: 0.94rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.auth-use-case-tab-text {
  line-height: 1;
  white-space: nowrap;
}

.auth-use-case-tab:hover {
  color: var(--color-text);
  border-color: color-mix(in srgb, var(--color-border) 100%, transparent);
}

.auth-use-case-tab.is-active {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-background);
}

.auth-use-case-stage {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 24px;
  align-items: stretch;
}

.auth-use-case-meta,
.auth-use-case-viewer {
  min-width: 0;
}

.auth-use-case-meta {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.auth-use-case-meta-top {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-use-case-label {
  color: color-mix(in srgb, var(--color-text) 62%, transparent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-use-case-meta h4 {
  color: var(--color-text);
  font-size: clamp(1.5rem, 2vw, 2.1rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.auth-use-case-summary {
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 0.98rem;
  line-height: 1.75;
}

.auth-use-case-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.auth-use-case-stat-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 76%, transparent);
}

.auth-use-case-stat-label {
  display: block;
  color: color-mix(in srgb, var(--color-text) 54%, transparent);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.auth-use-case-stat-value {
  display: block;
  margin-top: 8px;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
}

.auth-use-case-outcomes,
.auth-use-case-artifact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.auth-use-case-outcome-chip,
.auth-use-case-artifact-chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 72%, transparent);
  color: var(--color-text);
  font-size: 0.84rem;
}

.auth-use-case-viewer {
  display: flex;
}

.auth-use-case-window {
  width: 100%;
  min-height: 100%;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background:
    linear-gradient(165deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 98%, transparent) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-use-case-window--animated .auth-use-case-timeline-fill {
  animation: auth-use-case-progress 3.6s ease forwards;
}

.auth-use-case-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 72%, transparent);
  background: color-mix(in srgb, var(--color-panel) 74%, transparent);
}

.auth-use-case-window-controls {
  display: flex;
  gap: 8px;
}

.auth-use-case-window-controls span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-text) 26%, transparent);
}

.auth-use-case-window-title-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.auth-use-case-window-eyebrow {
  color: color-mix(in srgb, var(--color-text) 46%, transparent);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-use-case-window-title {
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 600;
}

.auth-use-case-live-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-text) 10%, transparent);
  color: color-mix(in srgb, var(--color-text) 72%, transparent);
  font-size: 0.74rem;
  font-weight: 600;
}

.auth-use-case-screen {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 22px;
}

.auth-use-case-screen-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-use-case-screen-label,
.auth-use-case-note-label,
.auth-use-case-step-state {
  color: color-mix(in srgb, var(--color-text) 54%, transparent);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-use-case-screen-task,
.auth-use-case-note-body {
  color: var(--color-text);
  font-family: "Roboto Mono", monospace;
  font-size: 0.92rem;
  line-height: 1.7;
}

.auth-use-case-screen-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(220px, 0.9fr);
  gap: 16px;
}

.auth-use-case-step-list {
  display: grid;
  gap: 12px;
}

.auth-use-case-step {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--color-border) 76%, transparent);
  background: color-mix(in srgb, var(--color-panel) 76%, transparent);
}

.auth-use-case-step--active {
  border-color: color-mix(in srgb, var(--color-text) 24%, transparent);
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-text) 10%, transparent);
}

.auth-use-case-step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.auth-use-case-step-time {
  color: color-mix(in srgb, var(--color-text) 58%, transparent);
  font-family: "Roboto Mono", monospace;
  font-size: 0.78rem;
}

.auth-use-case-step h5 {
  margin-top: 10px;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
}

.auth-use-case-step p {
  margin-top: 8px;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 0.9rem;
  line-height: 1.7;
}

.auth-use-case-side-panel {
  display: grid;
  gap: 12px;
}

.auth-use-case-note-card {
  padding: 16px;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--color-border) 76%, transparent);
  background: color-mix(in srgb, var(--color-panel) 78%, transparent);
}

.auth-use-case-note-card--secondary {
  min-height: 100%;
}

.auth-use-case-note-body {
  margin-top: 10px;
}

.auth-use-case-timeline {
  position: relative;
  width: 100%;
  height: 7px;
  border-radius: 999px;
  overflow: hidden;
  background: color-mix(in srgb, var(--color-border) 48%, transparent);
}

.auth-use-case-timeline-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--color-text) 72%, transparent) 0%, var(--color-text) 100%);
}

@keyframes auth-use-case-progress {
  from { width: 0; }
  to { width: 100%; }
}

.auth-more-use-cases {
  width: min(1180px, 100%);
}

.auth-more-use-cases-shell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 32px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 97%, transparent) 100%);
  box-shadow: var(--surface-shadow);
  overflow: hidden;
}

.auth-more-use-cases-shell::before,
.auth-more-use-cases-shell::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 72px;
  z-index: 2;
  pointer-events: none;
}

.auth-more-use-cases-shell::before {
  left: 0;
  background: linear-gradient(90deg, var(--color-background) 0%, color-mix(in srgb, var(--color-background) 0%, transparent) 100%);
}

.auth-more-use-cases-shell::after {
  right: 0;
  background: linear-gradient(270deg, var(--color-background) 0%, color-mix(in srgb, var(--color-background) 0%, transparent) 100%);
}

.auth-more-use-cases-copy {
  position: relative;
  z-index: 3;
  max-width: 60rem;
}

.auth-more-use-cases-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-more-use-cases-copy h3 {
  margin-top: 16px;
  color: var(--color-text);
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.auth-more-use-cases-text {
  margin-top: 14px;
  max-width: 48rem;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-marquee-stack {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-marquee-row {
  position: relative;
  overflow: hidden;
}

.auth-marquee-track {
  display: flex;
  gap: 14px;
  width: max-content;
  will-change: transform;
}

.auth-marquee-row--right .auth-marquee-track {
  animation: auth-marquee-right 34s linear infinite;
}

.auth-marquee-row--left .auth-marquee-track {
  animation: auth-marquee-left 34s linear infinite;
}

.auth-marquee-row--slow.auth-marquee-row--right .auth-marquee-track {
  animation-duration: 42s;
}

.auth-marquee-row--slow.auth-marquee-row--left .auth-marquee-track {
  animation-duration: 42s;
}

.auth-marquee-card {
  flex: 0 0 auto;
  min-width: 290px;
  max-width: 340px;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 86%, transparent) 0%, color-mix(in srgb, var(--color-background) 96%, transparent) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-marquee-card p {
  color: var(--color-text);
  font-size: 0.94rem;
  line-height: 1.65;
}

@keyframes auth-marquee-right {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0%); }
}

@keyframes auth-marquee-left {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

.auth-global-proof {
  width: min(1180px, 100%);
}

.auth-testimonials {
  width: min(1180px, 100%);
}

.auth-pricing {
  width: min(1180px, 100%);
}

.auth-global-proof-shell {
  display: grid;
  grid-template-columns: minmax(320px, 430px) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
  padding: 32px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 32px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 97%, transparent) 100%);
  box-shadow: var(--surface-shadow);
}

.auth-testimonials-shell {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 32px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 32px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 97%, transparent) 100%);
  box-shadow: var(--surface-shadow);
}

.auth-pricing-shell {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 32px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  border-radius: 32px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 90%, transparent) 0%, color-mix(in srgb, var(--color-background) 97%, transparent) 100%);
  box-shadow: var(--surface-shadow);
}

.auth-pricing-copy {
  max-width: 60rem;
}

.auth-pricing-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-pricing-copy h3 {
  margin-top: 16px;
  color: var(--color-text);
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.auth-pricing-text {
  margin-top: 14px;
  max-width: 50rem;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-pricing-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.auth-pricing-toggle {
  display: inline-flex;
  align-items: center;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 74%, transparent);
}

.auth-pricing-toggle-btn {
  border: none;
  background: transparent;
  color: color-mix(in srgb, var(--color-text) 58%, transparent);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1;
  padding: 12px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.auth-pricing-toggle-btn.is-active {
  background: var(--color-text);
  color: var(--color-background);
}

.auth-pricing-savings {
  color: color-mix(in srgb, var(--color-text) 62%, transparent);
  font-size: 0.9rem;
}

.auth-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.auth-pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100%;
  padding: 22px;
  border-radius: 26px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 84%, transparent) 0%, color-mix(in srgb, var(--color-background) 98%, transparent) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-pricing-card.is-featured {
  border-width: 2px;
  border-color: color-mix(in srgb, var(--color-text) 22%, transparent);
  box-shadow: var(--surface-shadow), inset 0 1px 0 color-mix(in srgb, white 12%, transparent);
}

.auth-pricing-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--color-text);
  color: var(--color-background);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-pricing-card-top {
  padding-top: 28px;
  min-height: 88px;
}

.auth-pricing-card-heading {
  max-width: calc(100% - 88px);
}

.auth-pricing-card h4 {
  color: var(--color-text);
  font-size: 1.3rem;
  line-height: 1.1;
}

.auth-pricing-card-description {
  margin-top: 8px;
  color: color-mix(in srgb, var(--color-text) 58%, transparent);
  font-size: 0.84rem;
  line-height: 1.35;
  white-space: nowrap;
}

.auth-pricing-card-flags {
  min-height: 32px;
  display: flex;
  align-items: center;
}

.auth-pricing-card-flags--empty {
  visibility: hidden;
}

.auth-pricing-recommended {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 76%, transparent);
  color: color-mix(in srgb, var(--color-text) 72%, transparent);
  font-size: 0.76rem;
  font-weight: 600;
}

.auth-pricing-price-block {
  min-height: 104px;
}

.auth-pricing-price-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.auth-pricing-price-copy {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-pricing-price-line {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.auth-pricing-price {
  color: var(--color-text);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.auth-pricing-cadence,
.auth-pricing-subline,
.auth-pricing-note {
  color: color-mix(in srgb, var(--color-text) 58%, transparent);
  font-size: 0.88rem;
}

.auth-pricing-savings-inline {
  color: #179c52;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.35;
}

.auth-pricing-savings-inline--empty {
  visibility: hidden;
}

.auth-pricing-feature-list {
  list-style: none;
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.auth-pricing-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text);
  font-size: 0.92rem;
  line-height: 1.6;
}

.auth-pricing-feature-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  margin-top: 2px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 72%, transparent);
  color: var(--color-text);
  font-size: 0.82rem;
  font-weight: 700;
}

.auth-pricing-cta {
  width: 100%;
  margin-top: auto;
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 74%, transparent);
  color: var(--color-text);
  font: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.auth-pricing-cta:hover {
  background: color-mix(in srgb, var(--color-panel) 90%, transparent);
}

.auth-pricing-cta:active {
  transform: scale(0.98);
}

.auth-pricing-cta.is-featured {
  background: var(--color-text);
  color: var(--color-background);
  border-color: var(--color-text);
}

.auth-testimonials-copy {
  max-width: 60rem;
}

.auth-testimonials-kicker {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-testimonials-copy h3 {
  margin-top: 16px;
  color: var(--color-text);
  font-size: clamp(2rem, 3vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.auth-testimonials-text {
  margin-top: 14px;
  max-width: 48rem;
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.auth-testimonial-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100%;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 84%, transparent) 0%, color-mix(in srgb, var(--color-background) 98%, transparent) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-testimonial-rating {
  color: var(--color-text);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
}

.auth-testimonial-quote {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-testimonial-meta {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.auth-testimonial-name {
  color: var(--color-text);
  font-size: 0.92rem;
  font-weight: 700;
}

.auth-testimonial-role {
  color: color-mix(in srgb, var(--color-text) 56%, transparent);
  font-size: 0.84rem;
}

.auth-global-proof-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.auth-global-proof-kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-panel) 84%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-global-proof-copy h3 {
  color: var(--color-text);
  font-size: clamp(2rem, 3vw, 3.15rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.auth-global-proof-text {
  color: color-mix(in srgb, var(--color-text) 68%, transparent);
  font-size: 1rem;
  line-height: 1.8;
}

.auth-global-proof-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.auth-global-proof-metric {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background: color-mix(in srgb, var(--color-panel) 76%, transparent);
}

.auth-global-proof-metric-label {
  display: block;
  color: color-mix(in srgb, var(--color-text) 54%, transparent);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.auth-global-proof-metric-value {
  display: block;
  margin-top: 8px;
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 700;
}

.auth-global-proof-stage {
  display: flex;
  min-width: 0;
}

.auth-globe-frame {
  position: relative;
  width: 100%;
  padding: 18px;
  border-radius: 28px;
  border: 1px solid color-mix(in srgb, var(--color-border) 82%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 84%, transparent) 0%, color-mix(in srgb, var(--color-background) 98%, transparent) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent);
}

.auth-globe-frame-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.auth-globe-frame-label,
.auth-globe-frame-note {
  color: color-mix(in srgb, var(--color-text) 56%, transparent);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.auth-globe-shell {
  position: relative;
  width: min(100%, 560px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-globe-shell::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--color-text) 8%, transparent) 0%, transparent 68%);
  filter: blur(18px);
}

.auth-global-globe-canvas {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  opacity: 0;
  border-radius: 50%;
  transition: opacity 1s ease;
  touch-action: none;
}

.auth-globe-badge-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.auth-globe-badge {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 128px;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--color-border) 78%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-panel) 92%, transparent) 0%, color-mix(in srgb, var(--color-background) 96%, transparent) 100%);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.14);
  transform: translate(-50%, -50%);
}

.auth-globe-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff4d57;
  box-shadow: 0 0 14px rgba(255, 77, 87, 0.55);
  animation: auth-globe-pulse 1.5s ease-in-out infinite;
}

.auth-globe-badge-country {
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
}

.auth-globe-badge-count {
  color: color-mix(in srgb, var(--color-text) 62%, transparent);
  font-size: 0.72rem;
  line-height: 1.4;
}

@keyframes auth-globe-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.65; transform: scale(0.92); }
}

@media (prefers-reduced-motion: reduce) {
  .auth-marquee-row--right .auth-marquee-track,
  .auth-marquee-row--left .auth-marquee-track,
  .auth-marquee-row--slow.auth-marquee-row--right .auth-marquee-track,
  .auth-marquee-row--slow.auth-marquee-row--left .auth-marquee-track {
    animation: none;
  }

  .auth-globe-badge-dot {
    animation: none;
  }
}

.auth-input-section {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.75rem 1rem 0.6rem;
  border-radius: 22px;
  border: 1px solid #3a3a3a;
  background-color: #2f2f2f;
}

.light-mode .auth-input-section {
  background-color: var(--color-panel-light);
  border-color: var(--color-border);
}

.auth-input-section.is-expanded #auth-chat-input {
  min-height: 11rem;
  max-height: 18rem;
}

.auth-input-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.auth-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 6px 8px 6px 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-border) 84%, transparent);
  background: color-mix(in srgb, var(--color-panel) 76%, transparent);
  color: var(--color-text);
  font-size: 0.72rem;
}

.auth-attachment-name {
  max-width: 15rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.auth-attachment-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.auth-attachment-remove .material-symbols-outlined {
  font-size: 14px;
}

.auth-ci-wrapper {
  display: flex;
  flex-direction: column;
  width: 100%;
}

#auth-chat-input-container {
  position: relative;
  width: 100%;
}

/* ─── Typewriter cursor overlay ─────────────────────────────── */
/* Positioned inline after the textarea text using the same font metrics.
   Only visible when .is-visible is toggled by the typewriter JS.
   Inherits theme colors — works in both dark and light modes. */
.auth-tw-cursor {
  display: none;
  position: absolute;
  top: 0.3rem;
  left: 0;
  width: 2px;
  height: 1.44rem;   /* matches textarea line-height: 1.6 × 0.9rem */
  border-radius: 1px;
  background-color: #ff1a4f;
  pointer-events: none;
  user-select: none;
  opacity: 0;
  will-change: opacity;
  transition: opacity 0s;
}

.auth-tw-cursor.is-visible {
  display: block;
  opacity: 1;
}

.auth-tw-cursor.is-visible.is-opaque {
  opacity: 0;
}

/* Light-mode cursor same brand red — already correct since #ff1a4f is on-brand */

/* Hidden text-width measurement mirror — same font as textarea */
#auth-tw-measure {
  position: absolute;
  top: -9999px;
  left: 0;
  visibility: hidden;
  white-space: pre;
  font-family: "Roboto Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  pointer-events: none;
  user-select: none;
}

#auth-chat-input {
  width: 100%;
  min-height: 2.5rem;
  max-height: 7rem;
  padding: 0.3rem 2rem 0.2rem 0;
  border: none;
  outline: none;
  resize: none;
  overflow-y: auto;
  background: transparent;
  color: var(--color-text);
  caret-color: #ff1a4f;
  font-family: "Roboto Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  align-content: start;
  scroll-behavior: smooth;
  transition: font-size 0.2s ease;
}

#auth-chat-input:focus {
  font-size: 0.955rem;
}

#auth-chat-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

#auth-chat-input::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

#auth-chat-input::-webkit-scrollbar-track {
  background: transparent;
  margin: 4px 0;
  border-radius: 6px;
}

#auth-chat-input::-webkit-scrollbar-thumb {
  background-color: rgba(155, 155, 155, 0.4);
  border-radius: 6px;
}

#auth-chat-input::-webkit-scrollbar-thumb:hover {
  background-color: rgba(155, 155, 155, 0.6);
}

#auth-expand-button {
  position: absolute;
  top: 6px;
  right: 4px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text);
  opacity: 0.35;
  cursor: pointer;
  transition: opacity 0.2s;
}

#auth-expand-button:hover {
  opacity: 0.65;
}

#auth-expand-button svg {
  width: 1.1rem;
  height: 1.1rem;
}

.auth-ba-footer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.auth-ba-left,
.auth-ba-right {
  display: flex;
  align-items: center;
}

.auth-ba-right {
  gap: 4px;
  flex-shrink: 0;
}

.auth-ba-circle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  padding: 0;
  border-radius: 50%;
  border: 1px solid rgba(250, 250, 250, 0.12);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  opacity: 0.7;
  overflow: hidden;
  transition: background-color 0.15s ease, opacity 0.15s ease, transform 0.1s ease;
}

.light-mode .auth-ba-circle-btn {
  border-color: rgba(51, 51, 51, 0.12);
}

.auth-ba-circle-btn svg {
  width: 14px;
  height: 14px;
}

.auth-ba-circle-btn .material-symbols-outlined {
  font-size: 1.2rem;
}

.auth-ba-circle-btn:hover:not(:disabled) {
  opacity: 1;
  background-color: rgba(255, 255, 255, 0.08);
}

.light-mode .auth-ba-circle-btn:hover:not(:disabled) {
  background-color: rgba(51, 51, 51, 0.06);
}

.auth-ba-circle-btn:active:not(:disabled) {
  opacity: 0.5;
  transform: scale(0.94);
}

.auth-ba-circle-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.auth-ba-send {
  background-color: #ff1a4f;
  border-color: transparent;
  color: #fff;
  opacity: 1;
}

.auth-ba-send:hover:not(:disabled) {
  background-color: #e6163f !important;
}

.auth-ba-mic {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: rgba(250, 250, 250, 0.12);
}

.light-mode .auth-ba-mic {
  background-color: rgba(51, 51, 51, 0.05);
  border-color: rgba(51, 51, 51, 0.12);
}

.auth-ba-mic.is-recording {
  background-color: rgba(255, 26, 79, 0.16);
  border-color: rgba(255, 26, 79, 0.4);
  color: #ff1a4f;
  opacity: 1;
}

label.auth-ba-circle-btn {
  pointer-events: auto;
}

/* ─── Form ────────────────────────────────────────────────────── */
.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ─── Fields ──────────────────────────────────────────────────── */
.auth-field {
  display: flex;
  flex-direction: column;
}
.auth-field input {
  width: 100%;
  height: 44px;
  padding: 4px 16px;
  border-radius: 9999px;
  border: 1px solid var(--color-input-border);
  background-color: var(--color-input);
  color: var(--color-text);
  font-size: 0.875rem;
  line-height: 22px;
  outline: none;
  transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}
.auth-field input::placeholder { color: var(--color-text-soft); }
.auth-field input:focus { border-color: var(--color-input-focus); }
.auth-field input:disabled { cursor: not-allowed; opacity: 0.6; }

.auth-field-error {
  font-size: 13px;
  color: #ff1a4f;
  line-height: 18px;
  margin-top: 2px;
  min-height: 0;
}
.auth-field-error:empty { display: none; }

.auth-field-row {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}
.auth-forgot {
  font-size: 13px;
  color: var(--color-text-soft);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s;
}
.auth-forgot:hover { color: var(--color-text-muted); }

/* ─── Password toggle ─────────────────────────────────────────── */
.auth-password-wrap {
  position: relative;
  width: 100%;
}
.auth-password-wrap input { padding-right: 44px; }
.auth-eye-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--color-text-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: color 0.15s;
  width: auto;
}
.auth-eye-btn:hover { color: var(--color-text-muted); background: none; }
.auth-eye-btn .material-symbols-outlined { font-size: 18px; }

/* ─── Submit button ───────────────────────────────────────────── */
.auth-submit-btn {
  width: 100%;
  height: 44px;
  border-radius: 9999px;
  border: 1px solid var(--color-button-border);
  background-color: var(--color-button-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.15s;
  margin-top: 8px;
}
.auth-submit-btn:hover:not(:disabled) { background-color: var(--color-button-bg-hover); }
.auth-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.light-mode .auth-submit-btn {
  background-color: #111111;
  border-color: #111111;
  color: #ffffff;
}

.light-mode .auth-submit-btn:hover:not(:disabled) {
  background-color: #000000;
  border-color: #000000;
}

/* Spinner */
.auth-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: auth-spin 0.6s linear infinite;
}
@keyframes auth-spin { to { transform: rotate(360deg); } }

/* ─── Error / Success banners ─────────────────────────────────── */
.auth-error {
  background: rgba(255,26,79,0.1);
  border: 1px solid rgba(255,26,79,0.3);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #ff5c83;
  text-align: center;
}
.auth-success {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(52,168,83,0.1);
  border: 1px solid rgba(52,168,83,0.3);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: #6fcf97;
  text-align: center;
  justify-content: center;
}

/* ─── Divider ─────────────────────────────────────────────────── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 4px 0;
}
.auth-divider-line { flex: 1; height: 1px; background: var(--color-input-border); }
.auth-divider-text { font-size: 0.875rem; color: var(--color-text-soft); white-space: nowrap; }

/* ─── OAuth row ───────────────────────────────────────────────── */
.auth-oauth-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.auth-oauth-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-button-border);
  background-color: var(--color-button-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s, border-color 0.15s;
  padding: 0;
}
.auth-oauth-btn:hover:not(:disabled) {
  background-color: var(--color-button-bg-hover);
  border-color: var(--color-input-focus);
}
.auth-oauth-disabled {
  opacity: 0.5;
  cursor: not-allowed !important;
}
.auth-oauth-icon { width: 20px; height: 20px; }

/* ─── Switch link ─────────────────────────────────────────────── */
.auth-switch {
  text-align: center;
  font-size: 13px;
  color: var(--color-text-soft);
}
.auth-switch a {
  margin-left: 8px;
  color: var(--color-text-muted);
  text-decoration: underline;
  cursor: pointer;
  transition: color 0.2s;
}
.auth-switch a:hover { color: var(--color-text); }

/* ─── Footer ──────────────────────────────────────────────────── */
.auth-footer {
  width: 100%;
  text-align: center;
  padding: 0 16px 24px;
  flex-shrink: 0;
}
.auth-footer p {
  font-size: 12px;
  color: color-mix(in srgb, var(--color-text) 32%, transparent);
}
.auth-footer a {
  color: var(--color-text-soft);
  text-decoration: underline;
}
.auth-footer a:hover { color: var(--color-text-muted); }

.a0-theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--a0-header-icon-button-size);
  height: var(--a0-header-icon-button-size);
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--a0-header-icon-button-radius);
  background: transparent;
  color: var(--a0-header-icon-color-dark);
  cursor: pointer;
  flex-shrink: 0;
  box-sizing: border-box;
  text-align: center;
  font-size: 1rem;
  line-height: 1;
  vertical-align: middle;
  transition: background-color 0.15s, color 0.15s, transform 0.15s;
}

.a0-theme-toggle:hover {
  background-color: var(--a0-header-icon-hover-bg-dark);
  color: var(--a0-header-icon-color-dark-hover);
}

.a0-theme-toggle:active {
  transform: scale(0.95);
}

.a0-theme-toggle__icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--a0-header-icon-glyph-size);
  width: 100%;
  height: 100%;
  line-height: 1;
  margin: 0;
  padding: 0;
  vertical-align: middle;
  transition: opacity 0.28s ease, transform 0.28s ease;
}

.a0-theme-toggle__icon--sun {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.a0-theme-toggle__icon--moon {
  opacity: 0;
  transform: scale(0.7) rotate(-24deg);
}

.a0-theme-toggle.is-dark .a0-theme-toggle__icon--sun {
  opacity: 0;
  transform: scale(0.7) rotate(24deg);
}

.a0-theme-toggle.is-dark .a0-theme-toggle__icon--moon {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.light-mode .a0-theme-toggle {
  color: var(--a0-header-icon-color-light);
}

.light-mode .a0-theme-toggle:hover {
  background-color: var(--a0-header-icon-hover-bg-light);
  color: var(--a0-header-icon-color-light-hover);
}

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .auth-heading h1 { font-size: 1.5rem; }
  .auth-heading p { font-size: 0.95rem; }
  .auth-main { padding: 20px 16px 16px; }
  .auth-header-wrapper { padding: 10px 16px 0; }
  .auth-card { padding: 24px 18px; border-radius: 24px; }
  .auth-hero-content { padding: 24px 20px; border-radius: 24px; }
  .auth-use-cases-shell { padding: 22px 18px; border-radius: 24px; }
  .auth-more-use-cases-shell { padding: 22px 18px; border-radius: 24px; }
  .auth-global-proof-shell { padding: 22px 18px; border-radius: 24px; }
  .auth-testimonials-shell { padding: 22px 18px; border-radius: 24px; }
  .auth-pricing-shell { padding: 22px 18px; border-radius: 24px; }
  .auth-hero-copy h2 { font-size: 2.2rem; }
  .auth-hero-line { white-space: normal; }
  .auth-hero-text { font-size: 0.98rem; line-height: 1.6; }
  .auth-input-section { padding: 0.75rem 0.85rem 0.6rem; }
  .auth-attachment-name { max-width: 10rem; }
  .auth-use-cases-copy h3 { font-size: 1.8rem; }
  .auth-more-use-cases-copy h3 { font-size: 1.8rem; }
  .auth-global-proof-copy h3 { font-size: 1.8rem; }
  .auth-testimonials-copy h3 { font-size: 1.8rem; }
  .auth-pricing-copy h3 { font-size: 1.8rem; }
  .auth-use-case-window-bar,
  .auth-use-case-screen { padding-left: 16px; padding-right: 16px; }
  .auth-use-case-screen-grid { grid-template-columns: 1fr; }
  .auth-marquee-card { min-width: 250px; max-width: 290px; padding: 16px 18px; }
  .auth-global-proof-metrics { grid-template-columns: 1fr; }
  .auth-globe-badge { min-width: 112px; padding: 8px 10px; }
  .auth-testimonials-grid { grid-template-columns: 1fr; }
  .auth-pricing-grid { grid-template-columns: 1fr; }
  .auth-pricing-card-top {
    padding-top: 40px;
    min-height: auto;
  }
  .auth-pricing-card-heading {
    max-width: 100%;
  }
  .auth-pricing-card-description {
    white-space: normal;
  }
  .auth-pricing-price-block {
    min-height: auto;
  }
  .auth-footer { padding-bottom: 16px; }
}

@media (max-width: 980px) {
  .auth-hero-shell {
    grid-template-columns: 1fr;
  }

  .auth-hero-content {
    order: -1;
    min-height: auto;
  }

  .auth-hero-copy h2 {
    max-width: 100%;
  }

  .auth-use-case-stage {
    grid-template-columns: 1fr;
  }

  .auth-use-case-stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .auth-use-case-screen-grid {
    grid-template-columns: 1fr;
  }

  .auth-global-proof-shell {
    grid-template-columns: 1fr;
  }

  .auth-testimonials-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .auth-pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #auth-chat-input {
    min-height: 5rem;
    align-content: start;
  }
}

@media (max-width: 760px) {
  .auth-use-case-stat-grid {
    grid-template-columns: 1fr;
  }

  .auth-testimonials-grid {
    grid-template-columns: 1fr;
  }

  .auth-pricing-grid {
    grid-template-columns: 1fr;
  }

  .auth-globe-badge {
    position: static;
    transform: none;
  }

  .auth-globe-badge-layer {
    position: relative;
    inset: auto;
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
}