/* ================================================
   Morpheme Auth Pages — Shared Styles
   Design System: Morpheme UI by gits.id
   ================================================ */

/* 1. CSS Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 2. Design Tokens (:root) — DESIGN.md §14 */
:root {
  /* Brand — Primary (Blue) */
  --color-primary-25:  #F5F8FF;
  --color-primary-50:  #EBF3FF;
  --color-primary-100: #BFDBFE;
  --color-primary-200: #93C5FD;
  --color-primary-300: #60A5FA;
  --color-primary-400: #3B82F6;
  --color-primary:     #1D6EEB;
  --color-primary-600: #1B69C2;
  --color-primary-700: #1554A1;
  --color-primary-800: #0D4487;
  --color-primary-900: #072D60;
  --color-primary-light: #EFF8FF;

  /* Brand — Secondary (Orange) */
  --color-secondary-25:  #FFF9F5;
  --color-secondary-50:  #FFF3EB;
  --color-secondary-100: #FFE0C2;
  --color-secondary-200: #FFBC87;
  --color-secondary-300: #FF9855;
  --color-secondary-400: #FF7320;
  --color-secondary:     #E55B05;
  --color-secondary-600: #CC4E00;
  --color-secondary-700: #A33E00;
  --color-secondary-800: #7A2E00;
  --color-secondary-900: #4A1C00;
  --color-secondary-light: #FFF3EB;

  /* Foundation */
  --color-white:   #FFFFFF;
  --color-black:   #000000;
  --color-info:    #28A0F8;
  --color-warning: #F79009;
  --color-success: #12B76A;
  --color-error:   #F04438;

  /* Neutral */
  --color-gray-25:  #FCFCFD;
  --color-gray-50:  #F9FAFB;
  --color-gray-100: #F2F4F7;
  --color-gray-200: #EAECF0;
  --color-gray-300: #D0D5DD;
  --color-gray-400: #98A2B3;
  --color-gray-500: #667085;
  --color-gray-600: #475467;
  --color-gray-700: #344054;
  --color-gray-800: #1D2939;
  --color-gray-900: #101828;

  /* Typography */
  --font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --text-xs:  12px;
  --text-sm:  14px;
  --text-md:  16px;
  --text-lg:  18px;
  --text-xl:  20px;
  --text-2xl: 24px;
  --text-3xl: 30px;
  --text-4xl: 36px;
  --text-5xl: 48px;

  /* Spacing (4px base) */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Border Radius */
  --radius-xs:   2px;
  --radius-sm:   4px;
  --radius-md:   6px;
  --radius-lg:   8px;
  --radius-xl:   12px;
  --radius-2xl:  16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(16,24,40,0.05);
  --shadow:     0 1px 3px rgba(16,24,40,0.10), 0 1px 2px rgba(16,24,40,0.06);
  --shadow-md:  0 4px 8px -2px rgba(16,24,40,0.10), 0 2px 4px -2px rgba(16,24,40,0.06);
  --shadow-lg:  0 12px 16px -4px rgba(16,24,40,0.08), 0 4px 6px -2px rgba(16,24,40,0.03);
  --shadow-xl:  0 20px 24px -4px rgba(16,24,40,0.08), 0 8px 8px -4px rgba(16,24,40,0.03);
  --shadow-2xl: 0 24px 48px -12px rgba(16,24,40,0.18);

  /* Motion */
  --duration-fast:   100ms;
  --duration-base:   150ms;
  --duration-slow:   200ms;
  --duration-slower: 300ms;
  --ease-out:    cubic-bezier(0.0, 0.0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* 3. Base Styles */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--color-gray-900);
  background: var(--color-gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-primary-700);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button {
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  background: none;
}

img { display: block; max-width: 100%; }
ul, ol { list-style: none; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ================================================
   4. Auth Layout
   ================================================ */
.auth-wrapper {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

/* ================================================
   5. Logo
   ================================================ */
.auth-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-gray-900);
}

.auth-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.auth-logo-icon svg {
  width: 22px;
  height: 22px;
}

.auth-logo-text {
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ================================================
   6. Auth Card
   ================================================ */
.auth-card {
  width: 100%;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
}

.auth-card-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.auth-card-icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  color: var(--color-primary);
}

.auth-card-icon svg {
  width: 28px;
  height: 28px;
}

.auth-card-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-gray-900);
  line-height: 1.3;
  margin-bottom: var(--space-2);
}

.auth-card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
}

/* ================================================
   7. Form Components
   ================================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  font-family: var(--font-family);
  font-size: var(--text-md);
  color: var(--color-gray-900);
  background: var(--color-white);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(29,110,235,0.12);
}

.form-input.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 4px rgba(240,68,56,0.12);
}

.form-helper {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

.form-error-text {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* Password input wrapper */
.input-password-wrapper {
  position: relative;
}

.input-password-wrapper .form-input {
  padding-right: var(--space-12);
}

.input-password-toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-400);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.input-password-toggle:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-50);
}

.input-password-toggle svg {
  width: 20px;
  height: 20px;
}

/* Checkbox */
.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.form-checkbox-label {
  font-size: var(--text-sm);
  color: var(--color-gray-700);
}

.form-checkbox-label a {
  font-weight: 500;
}

/* Row between checkbox and link */
.form-actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.form-actions-row a {
  font-size: var(--text-sm);
  font-weight: 500;
}

/* ================================================
   8. Buttons
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-5);
  font-family: var(--font-family);
  font-size: var(--text-md);
  font-weight: 500;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.btn svg {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-600);
}

.btn-secondary {
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  color: var(--color-gray-700);
}

.btn-secondary:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ================================================
   9. Divider
   ================================================ */
.divider-text {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.divider-text::before,
.divider-text::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-gray-200);
}

.divider-text span {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  white-space: nowrap;
}

/* ================================================
   10. Social Login Buttons
   ================================================ */
.social-buttons {
  display: flex;
  gap: var(--space-3);
}

.btn-social {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-4);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}

.btn-social:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}

.btn-social svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ================================================
   11. Password Requirements
   ================================================ */
.password-requirements {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.password-req {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-gray-400);
}

.password-req svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.password-req.met {
  color: var(--color-success);
}

/* ================================================
   12. OTP Input
   ================================================ */
.otp-inputs {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.otp-input {
  width: 48px;
  height: 56px;
  text-align: center;
  font-family: var(--font-family);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-gray-900);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.otp-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(29,110,235,0.12);
}

.otp-input::placeholder {
  color: var(--color-gray-300);
}

/* ================================================
   13. Alerts
   ================================================ */
.alert {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border-left: 4px solid;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}

.alert svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-info {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-gray-700);
}

.alert-success {
  background: #ECFDF3;
  border-color: var(--color-success);
  color: var(--color-gray-700);
}

.alert-warning {
  background: #FFFAEB;
  border-color: var(--color-warning);
  color: var(--color-gray-700);
}

.alert-error {
  background: #FEF3F2;
  border-color: var(--color-error);
  color: var(--color-gray-700);
}

.alert-info svg    { color: var(--color-primary); }
.alert-success svg { color: var(--color-success); }
.alert-warning svg { color: var(--color-warning); }
.alert-error svg   { color: var(--color-error); }

/* ================================================
   14. Auth Footer
   ================================================ */
.auth-footer {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.auth-footer a {
  font-weight: 500;
}

.auth-back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-500);
  margin-top: var(--space-6);
  transition: color var(--duration-fast) var(--ease-out);
}

.auth-back-link:hover {
  color: var(--color-gray-700);
}

.auth-back-link svg {
  width: 16px;
  height: 16px;
}

/* Resend link */
.resend-text {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-4);
}

.resend-text a {
  font-weight: 500;
}

.resend-timer {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  text-align: center;
  margin-top: var(--space-2);
}

/* ================================================
   15. Responsive
   ================================================ */
@media (max-width: 639px) {
  body {
    padding: var(--space-4);
    justify-content: flex-start;
    padding-top: var(--space-12);
  }

  .auth-card {
    padding: var(--space-6);
    border-radius: var(--radius-lg);
  }

  .auth-wrapper {
    gap: var(--space-6);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .social-buttons {
    flex-direction: column;
  }

  .otp-input {
    width: 44px;
    height: 52px;
    font-size: var(--text-xl);
  }

  .otp-inputs {
    gap: var(--space-2);
  }
}

/* ================================================
   16. prefers-reduced-motion
   ================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}