/* ============================================================
   pages/auth.css — VidForge AI Auth Page
   Rule: Zero raw hex. Consume tokens only.
   ============================================================ */


/* ════════════════════════════════════════════════════════════
   PAGE SHELL
   ════════════════════════════════════════════════════════════ */

.auth-page {
  min-height: 100vh;
  /* page-main supplies padding-top: var(--nav-height) */
}

/* ── Split-screen grid ──────────────────────────────────── */
.auth-split {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  min-height: calc(100vh - var(--nav-height));
}


/* ════════════════════════════════════════════════════════════
   LEFT — BRAND SIDE
   ════════════════════════════════════════════════════════════ */

.auth-brand {
  background:
    radial-gradient(ellipse 80% 80% at 20% 20%, rgba(240, 82, 20, 0.15), transparent),
    var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--primitive-space-16) var(--primitive-space-12);
  /* Sticky so content stays centred while form side scrolls */
  position: sticky;
  top: var(--nav-height);
  align-self: start;
  height: calc(100vh - var(--nav-height));
  overflow: hidden;
}

.auth-brand-content {
  display: flex;
  flex-direction: column;
  gap: var(--primitive-space-6);
  max-width: 420px;
}

.auth-brand-logo-link {
  display: inline-flex;
  color: inherit;
  width: fit-content;
}

.auth-brand-logo-link img {
  background: var(--primitive-white-warm);
  border-radius: var(--primitive-radius-md);
  padding: 5px 8px;
  display: block;
}

.auth-brand-headline {
  font-size: var(--text-h1);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
}

.auth-brand-sub {
  font-size: var(--text-body-xl);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Stat row */
.auth-brand-stats {
  display: flex;
  gap: var(--primitive-space-8);
  flex-wrap: wrap;
  padding-block: var(--primitive-space-4);
  border-block: 1px solid var(--border-subtle);
}

.auth-stat {
  display: flex;
  flex-direction: column;
  gap: var(--primitive-space-1);
}

/* Badge strip */
.auth-brand-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--primitive-space-2);
}


/* ════════════════════════════════════════════════════════════
   RIGHT — FORM SIDE
   ════════════════════════════════════════════════════════════ */

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--primitive-space-12) var(--primitive-space-8);
  overflow-y: auto;
}

.auth-form-container {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--primitive-space-6);
}

.auth-form-header {
  display: flex;
  flex-direction: column;
  gap: var(--primitive-space-2);
}

.auth-form-title {
  font-size: var(--text-h2);
  font-weight: 700;
  letter-spacing: -0.015em;
}

.auth-form-subtitle {
  font-size: var(--text-body-md);
  color: var(--text-secondary);
}


/* ════════════════════════════════════════════════════════════
   TAB TOGGLE
   ════════════════════════════════════════════════════════════ */

.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
}

.auth-tab {
  flex: 1;
  padding-block: var(--primitive-space-4);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-family: var(--primitive-font-body);
  font-size: var(--text-body-md);
  font-weight: 500;
  color: var(--text-tertiary);
  transition: var(--transition-fast);
  /* Offset for the 2px active border — prevents layout shift */
  margin-bottom: -1px;
}

.auth-tab:hover {
  color: var(--text-secondary);
}

.auth-tab--active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-primary);
  font-weight: 600;
}

.auth-tab:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--primitive-radius-sm) var(--primitive-radius-sm) 0 0;
}


/* ════════════════════════════════════════════════════════════
   AUTH PANELS
   ════════════════════════════════════════════════════════════ */

.auth-panel {
  display: flex;
  flex-direction: column;
  gap: var(--primitive-space-5);
}

.auth-panel--hidden {
  display: none;
}

/* Password field wrapper — positions the toggle button inside */
.input-password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-password-wrap .form-input {
  padding-right: calc(var(--btn-height-sm) + var(--primitive-space-2));
}

.password-toggle {
  position: absolute;
  right: var(--primitive-space-2);
  color: var(--text-tertiary);
  font-size: var(--text-body-lg);
  line-height: 1;
  /* Override btn--icon square sizing — we just need it inline */
  width: auto;
  height: auto;
  padding: var(--primitive-space-1) var(--primitive-space-2);
}

.password-toggle:hover {
  color: var(--text-primary);
}

/* Redirect line below the submit button */
.auth-redirect {
  font-size: var(--text-body-sm);
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.6;
}

.auth-tab-switch {
  background: none;
  border: none;
  color: var(--accent-primary);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: 500;
  padding: 0;
  transition: var(--transition-fast);
}

.auth-tab-switch:hover {
  color: var(--accent-primary-hover);
}

.auth-tab-switch:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--primitive-radius-sm);
}


/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */

/* Tablet & mobile — hide brand side, form takes full width */
@media (max-width: 768px) {
  .auth-split {
    grid-template-columns: 1fr;
  }

  .auth-brand {
    display: none;
  }

  .auth-form-side {
    /* On mobile, align form to top with comfortable padding */
    align-items: flex-start;
    padding-top: var(--primitive-space-8);
  }

  .auth-form-container {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .auth-form-side {
    padding-inline: var(--primitive-space-6);
  }
}