/*
 * Authentication route composition.
 * Load after tokens.css, base.css, components.css, layout.css, motion.css.
 * Uses only token references — no raw colour values.
 */

/* Page shell */
.auth-page {
  color: var(--color-text-primary);
  background-color: var(--color-surface-canvas);
}

/* Centered auth layout */
.auth-container {
  inline-size: min(calc(100% - var(--layout-gutter) - var(--layout-gutter)), 26rem);
  max-inline-size: 100%;
  margin-inline: auto;
  padding-block: var(--space-7);
}

/* Header/Logo area */
.auth-header {
  text-align: center;
  margin-block-end: var(--space-6);
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text-primary);
  margin-block-end: var(--space-3);
}

.auth-logo:focus-visible {
  border-radius: var(--radius-control);
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
}

.auth-logo-icon {
  display: grid;
  place-items: center;
  inline-size: var(--control-min-block);
  block-size: var(--control-min-block);
  border: var(--border-width) solid var(--color-brand-gold-700);
  border-radius: var(--radius-control);
  background-color: var(--color-brand-gold-300);
  color: var(--color-brand-ink-950);
  font-size: var(--text-step-1);
  font-weight: 900;
  font-family: var(--font-display);
}

.auth-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-step--1);
  font-weight: 700;
  color: var(--color-text-primary);
}

.auth-header p {
  color: var(--color-text-secondary);
  font-size: var(--text-step--1);
  margin-block-start: var(--space-2);
}

.auth-header h1 {
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-step--1);
  font-weight: 400;
  line-height: var(--line-body);
  margin-block-start: var(--space-2);
}

/* Card */
.auth-card {
  padding: var(--space-6) var(--space-5);
  border: var(--border-width) solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  background-color: var(--color-surface-raised);
  box-shadow: var(--shadow-raised);
}

/* Tabs */
.auth-tabs {
  display: flex;
  margin-block-end: var(--space-5);
  padding: var(--space-2);
  border: var(--border-width) solid var(--color-border-subtle);
  border-radius: var(--radius-card);
  background-color: var(--color-surface-canvas);
  gap: var(--space-2);
}

.auth-tab {
  flex: 1;
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: var(--control-min-block);
  padding: var(--space-2) var(--space-4);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-brand-ink-700);
  font-family: var(--font-body);
  font-size: var(--text-step--1);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-standard),
              color var(--motion-fast) var(--ease-standard),
              border-color var(--motion-fast) var(--ease-standard);
}

.auth-tab.active {
  border-color: var(--color-brand-gold-700);
  color: var(--color-brand-ink-950);
  background-color: var(--color-brand-gold-300);
  box-shadow: var(--shadow-inset);
}

.auth-tab:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
}

@media (hover: hover) and (pointer: fine) {
  .auth-tab:not(.active):hover {
    border-color: var(--color-brand-gold-700);
    color: var(--color-brand-ink-950);
    background-color: var(--color-surface-raised);
  }
}

/* Forms visibility controlled by script via .active */
.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

/* Form groups */
.form-group {
  display: grid;
  gap: var(--space-2);
  margin-block-end: var(--space-4);
}

.form-group label {
  display: block;
  color: var(--color-text-primary);
  font-size: var(--text-step--1);
  font-weight: 700;
  line-height: 1.35;
}

.form-group input,
.form-group select {
  inline-size: 100%;
  min-block-size: var(--control-min-block);
  padding: var(--space-3) var(--space-4);
  border: var(--border-width) solid var(--color-border-strong);
  border-radius: var(--radius-control);
  color: var(--color-text-primary);
  background-color: var(--color-surface-raised);
  box-shadow: var(--shadow-inset);
  font-family: var(--font-body);
  font-size: var(--text-step-0);
  line-height: 1.35;
  transition: border-color var(--motion-fast) var(--ease-standard);
}

.form-group input:focus-visible,
.form-group select:focus-visible {
  border-color: var(--color-brand-ink-900);
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
  box-shadow: none;
}

.form-group input::placeholder {
  color: var(--color-text-secondary);
}

.form-group select option {
  background-color: var(--color-surface-raised);
  color: var(--color-text-primary);
}

/* Phone row */
.phone-row {
  display: flex;
  gap: var(--space-2);
}

.phone-row select {
  inline-size: 6.25rem;
  flex-shrink: 0;
}

.phone-row input {
  flex: 1;
  min-inline-size: 0;
}

/* Dynamic field visibility (script toggles .visible)
   display:none hides from assistive technology automatically. */
.field-phone,
.field-email {
  display: none;
}

.field-phone.visible,
.field-email.visible {
  display: grid;
}

/* OTP group - hidden until script adds .visible */
.otp-group {
  display: none;
  margin-block-start: var(--space-5);
  padding-block-start: var(--space-5);
  border-block-start: var(--border-width) solid var(--color-border-subtle);
}

.otp-group.visible {
  display: block;
  animation: auth-slide-down var(--motion-emphasis) var(--ease-decelerate);
}

.otp-input {
  text-align: center;
  font-size: var(--text-step-2);
  font-weight: 700;
  letter-spacing: 0.75rem;
  padding: var(--space-4);
}

.otp-note {
  font-size: var(--text-step--1);
  color: var(--color-text-secondary);
  text-align: center;
  margin-block-start: var(--space-2);
}

.otp-resend {
  appearance: none;
  display: block;
  inline-size: 100%;
  min-block-size: var(--control-min-block);
  margin-block-start: var(--space-3);
  padding: var(--space-2);
  border: none;
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-brand-gold-700);
  font-family: var(--font-body);
  font-size: var(--text-step--1);
  font-weight: 700;
  text-align: center;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

.otp-resend:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
}

.otp-resend:disabled {
  color: var(--color-text-secondary);
  cursor: not-allowed;
  text-decoration: none;
}

/* Buttons */
.auth-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 100%;
  min-block-size: var(--control-min-block);
  padding: var(--space-3) var(--space-4);
  border: var(--border-width) solid var(--color-action-primary-border);
  border-radius: var(--radius-control);
  font-family: var(--font-body);
  font-size: var(--text-step-0);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  margin-block-start: var(--space-2);
  transition: box-shadow var(--motion-fast) var(--ease-standard),
              background-color var(--motion-fast) var(--ease-standard);
}

.auth-btn:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
}

.auth-btn-primary {
  background-color: var(--color-action-primary-bg);
  color: var(--color-action-primary-text);
  border-color: var(--color-action-primary-border);
  box-shadow: var(--shadow-raised);
}

@media (hover: hover) and (pointer: fine) {
  .auth-btn-primary:not(:disabled):hover {
    background-color: var(--color-brand-ink-950);
    box-shadow: var(--shadow-floating);
  }
}

.auth-btn-primary:disabled {
  background-color: var(--color-surface-canvas);
  color: var(--color-text-secondary);
  border-color: var(--color-border-subtle);
  box-shadow: none;
  cursor: not-allowed;
}

.auth-btn-verify {
  background-color: var(--color-status-success);
  color: var(--color-surface-raised);
  border-color: var(--color-status-success);
}

@media (hover: hover) and (pointer: fine) {
  .auth-btn-verify:not(:disabled):hover {
    box-shadow: var(--shadow-floating);
  }
}

/* Messages — live region for errors */
.auth-msg {
  padding: var(--space-3) var(--space-4);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-control);
  font-size: var(--text-step--1);
  font-weight: 700;
  line-height: 1.45;
  margin-block-end: var(--space-4);
  display: none;
}

.auth-msg.error {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-2);
  border-color: var(--color-status-error);
  border-inline-start-width: var(--focus-width);
  background-color: var(--color-status-error-bg);
  color: var(--color-status-error);
}

/* Error icon via pseudo-element: diamond shape — not colour alone */
.auth-msg.error::before {
  content: "";
  flex: 0 0 auto;
  inline-size: var(--space-3);
  block-size: var(--space-3);
  margin-block-start: var(--space-1);
  background-color: currentColor;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.auth-msg.success {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-2);
  border-color: var(--color-status-success);
  border-inline-start-width: var(--focus-width);
  background-color: var(--color-status-success-bg);
  color: var(--color-status-success);
}

/* Success icon via pseudo-element: circle — not colour alone */
.auth-msg.success::before {
  content: "";
  flex: 0 0 auto;
  inline-size: var(--space-3);
  block-size: var(--space-3);
  margin-block-start: var(--space-1);
  border-radius: var(--radius-pill);
  background-color: currentColor;
}

/* Success screen */
.auth-success {
  display: none;
  text-align: center;
  padding-block: var(--space-5);
}

.auth-success.visible {
  display: block;
  animation: auth-slide-down var(--motion-emphasis) var(--ease-decelerate);
}

.auth-success-icon {
  font-size: var(--text-step-3);
  margin-block-end: var(--space-4);
  color: var(--color-status-success);
}

.auth-success h3 {
  font-family: var(--font-display);
  font-size: var(--text-step-2);
  color: var(--color-brand-ink-900);
  margin-block-end: var(--space-2);
}

.auth-success p {
  color: var(--color-text-secondary);
  font-size: var(--text-step--1);
  line-height: var(--line-body);
  margin-block-end: var(--space-5);
}

.auth-success .wa-access {
  border: var(--border-width) solid var(--color-status-success);
  border-radius: var(--radius-control);
  padding: var(--space-4);
  margin-block: var(--space-4);
  background-color: var(--color-status-success-bg);
}

.auth-success .wa-access a {
  color: var(--color-status-success);
  font-weight: 700;
  text-decoration: none;
  font-size: var(--text-step-1);
}

.auth-success .wa-access a:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-control);
}

.auth-success .wa-access p {
  color: var(--color-text-secondary);
  font-size: var(--text-step--1);
  margin-block-start: var(--space-2);
  margin-block-end: 0;
}

/* Footer link */
.auth-footer {
  text-align: center;
  margin-block-start: var(--space-5);
}

.auth-footer a {
  color: var(--color-brand-gold-700);
  font-size: var(--text-step--1);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

.auth-footer a:focus-visible {
  outline: var(--focus-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-control);
}

@media (hover: hover) and (pointer: fine) {
  .auth-footer a:hover {
    color: var(--color-brand-ink-950);
  }
}

/* Animation */
@keyframes auth-slide-down {
  from {
    opacity: 0;
    transform: translateY(calc(0px - var(--motion-translate-max)));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 30rem) {
  .auth-card {
    padding: var(--space-5) var(--space-4);
  }

  .auth-container {
    padding-block: var(--space-5);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .otp-group.visible,
  .auth-success.visible {
    animation: none;
  }
}

/* Forced colors */
@media (forced-colors: active) {
  .auth-card,
  .auth-tabs,
  .auth-tab.active,
  .auth-msg.error,
  .auth-msg.success {
    border-color: CanvasText;
  }
}