/* ==========================================================================
   Travlounge Login Page Styles
   Inherits design tokens and base styles from assets/css/styles.css
   ========================================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--paper);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgb(255 201 5 / 0.12) 0%, transparent 60%),
    radial-gradient(circle at 1px 1px, var(--line) 1px, transparent 0);
  background-size: 100% 100%, 32px 32px;
  background-position: center top, 0 0;
  color: var(--ink);
  padding: 24px var(--gutter);
}

/* Minimal Top Navigation */
.login-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 8px 0;
}

.login-nav__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  font: 500 14px/1 var(--font-sans);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.login-nav__back svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.login-nav__back:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  transform: translateX(-2px);
}

.login-nav__back:hover svg {
  transform: translateX(-2px);
}

/* Centered Login Card Area */
.login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 40px 0;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  padding: clamp(28px, 6vw, 40px);
  box-shadow:
    0 1px 2px rgb(21 24 28 / 0.04),
    0 10px 24px -10px rgb(21 24 28 / 0.1),
    0 30px 60px -25px rgb(21 24 28 / 0.15);
  transition: box-shadow 0.3s ease;
}

/* Card Header */
.login-card__header {
  text-align: center;
  margin-bottom: 32px;
}

.login-card__logo-wrap {
  display: inline-block;
  margin-bottom: 20px;
}

.login-card__logo {
  height: 32px;
  width: auto;
  display: block;
  margin: 0 auto;
}

.login-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper-2);
  color: var(--ink-2);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.login-card__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-deep);
  box-shadow: 0 0 0 2px rgb(255 201 5 / 0.35);
}

.login-card__title {
  margin: 0 0 8px;
  font-size: clamp(24px, 4vw, 28px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1.2;
}

.login-card__subtitle {
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.5;
}

/* Form Controls */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.form-group__label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
}

.form-group__hint-link {
  color: var(--ink-3);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

.form-group__hint-link:hover {
  color: var(--ink);
  text-decoration: underline;
}

.form-group__input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.form-group__icon {
  position: absolute;
  left: 16px;
  width: 18px;
  height: 18px;
  color: var(--ink-4);
  pointer-events: none;
  transition: color 0.2s ease;
}

.form-group__input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 50px;
  padding: 0 46px 0 46px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  font: 450 15.5px/1 var(--font-sans);
  letter-spacing: -0.005em;
  transition:
    border-color 0.2s ease,
    box-shadow 0.25s var(--ease-out);
}

.form-group__input::placeholder {
  color: var(--ink-4);
  opacity: 1;
}

.form-group__input:hover {
  border-color: #bdb7ab;
}

.form-group__input:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow:
    0 0 0 4px rgb(255 201 5 / 0.45),
    0 8px 20px -8px rgb(21 24 28 / 0.25);
}

.form-group__input-wrap:focus-within .form-group__icon {
  color: var(--ink);
}

/* Password Toggle Button */
.form-group__toggle-pass {
  position: absolute;
  right: 8px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}

.form-group__toggle-pass:hover {
  color: var(--ink);
  background-color: var(--paper-2);
}

.form-group__toggle-pass:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.form-group__toggle-pass svg {
  width: 18px;
  height: 18px;
}

/* Remember Me Checkbox */
.login-form__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -4px;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  color: var(--ink-2);
  font-size: 14px;
  user-select: none;
}

.checkbox-input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 0;
  border: 1.5px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.checkbox-input:checked {
  background: var(--ink);
  border-color: var(--ink);
}

.checkbox-input:checked::before {
  content: "";
  width: 10px;
  height: 6px;
  border-left: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(-45deg) translate(1px, -1px);
}

.checkbox-input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgb(255 201 5 / 0.5);
}

/* Submit Button */
.login-submit-btn {
  -webkit-appearance: none;
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 52px;
  margin-top: 8px;
  border: 1px solid var(--accent-deep);
  border-radius: 12px;
  background: var(--accent);
  color: var(--ink);
  font: 700 16px/1 var(--font-sans);
  letter-spacing: -0.01em;
  cursor: pointer;
  box-shadow:
    inset 0 -1px 0 rgb(0 0 0 / 0.08),
    0 6px 18px -4px rgb(240 180 0 / 0.7);
  transition:
    background-color 0.2s ease,
    transform 0.2s var(--ease-out),
    box-shadow 0.25s ease;
}

.login-submit-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.25s ease;
}

.login-submit-btn:hover {
  background: #ffd024;
  box-shadow:
    inset 0 -1px 0 rgb(0 0 0 / 0.08),
    0 8px 24px -4px rgb(240 180 0 / 0.85);
  transform: translateY(-1px);
}

.login-submit-btn:hover svg {
  transform: translateX(3px);
}

.login-submit-btn:active {
  transform: translateY(1px);
  box-shadow:
    inset 0 1px 2px rgb(0 0 0 / 0.1),
    0 2px 8px -2px rgb(240 180 0 / 0.6);
}

.login-submit-btn:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.login-submit-btn.is-loading {
  pointer-events: none;
  opacity: 0.8;
}

/* Error/Alert box */
.login-alert {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  font-size: 13.5px;
  line-height: 1.4;
  margin-bottom: 20px;
}

.login-alert.is-visible {
  display: flex;
  animation: alert-shake 0.4s var(--ease-spring);
}

.login-alert.is-success {
  background: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}

.login-alert.is-info {
  background: #f0f9ff;
  border-color: #bae6fd;
  color: #0369a1;
}

.login-alert svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

@keyframes alert-shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-4px); }
  40%, 80% { transform: translateX(4px); }
}

/* Spinner for button loading */
.btn-spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgb(21 24 28 / 0.25);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
}

.is-loading .btn-spinner {
  display: inline-block;
}

.is-loading .btn-arrow {
  display: none;
}

@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

/* Card Sub-Footer: Security Badge */
.login-card__footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--ink-3);
  font: 500 12.5px/1 var(--font-sans);
}

.login-card__footer svg {
  width: 14px;
  height: 14px;
  color: var(--ink-4);
}

/* Page Footer */
.login-page__footer {
  text-align: center;
  color: var(--ink-4);
  font-size: 13px;
  padding: 16px 0 8px;
}

.login-page__footer a {
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 500;
}

.login-page__footer a:hover {
  text-decoration: underline;
}

/* Subtle Entry Animation */
.motion .login-card {
  animation: card-rise 0.6s var(--ease-out) both;
}

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}