/* ---------- Login and Sign Up pages ---------- */

/* Shared by both pages. Sign Up adds its own rules in signup.css: the success message
   and the read-only username field. */

/* ---------- Design tokens ---------- */

:root {
  --color-primary: #087830;         /* La Salle Green */
  --color-primary-hover: #0a9a3f;   /* slightly lighter, for hover state */
  --color-primary-active: #066327;  /* slightly darker, for pressed state */
  --color-bg: #ffffff;
  --color-text: #3c4142;            /* Charcoal Grey */
  --color-text-muted: #6b7072;
  --color-border: #d8dcdb;
  --color-border-focus: var(--color-primary);
  --color-footer-bg: #3c4142;       /* Charcoal Grey */
  --typography: "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 40px;

  --radius-inner: 12px;
  --card-padding: 32px;
  --radius-outer: calc(var(--radius-inner) + var(--card-padding));

  /* Motion */
  --transition-fast: 200ms ease;
  --transition-medium: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Page reset and background ---------- */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--typography);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 20%, #0f9c42 0%, #087830 35%, #063f1c 75%, #051f10 100%);
  padding: var(--space-4);
}

/* ---------- Login card ---------- */

.auth-card {
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.auth-card__logo {
  width: 160px;
  height: auto;
  margin-bottom: var(--space-3);
}

.auth-card__title {
  font-family: var(--typography);
  font-weight: 700;
  font-size: 1.35rem;
  color: #ffffff;
  margin-bottom: var(--space-1);
}

.auth-card__subtitle {
  font-family: var(--typography);
  font-style: italic;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-5);
}

/* ---------- Login form fields ---------- */

.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.field {
  position: relative;
  width: 100%;
}

.field__icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 1rem;
  pointer-events: none;
}

.field__input {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-3) 0 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-bg);
  font-family: var(--typography);
  font-size: 0.95rem;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, border-radius 0.3s ease; 
}

.field__input:hover {
  border-color: var(--color-primary-hover);
  border-radius: 16px; /* Slightly increases the roundness on hover for a dynamic feel */
  box-shadow: 0 0 5px rgba(8, 120, 48, 0.15);
}

.field__input::placeholder {
  color: transparent;
}

.field__input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(8, 120, 48, 0.15);
}

/* ---------- Floating field labels ---------- */

/* The label sits inside the field until it is focused or filled,
   then slides up and left to rest on the border line. */
.field__label {
  position: absolute;
  left: 44px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--typography);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
  padding: 0 var(--space-1);
  border-radius: 6px;
  pointer-events: none;
  transition: top 0.3s ease, left 0.3s ease, font-size 0.3s ease, color 0.3s ease;
}

.field__input:focus + .field__label,
.field__input:not(:placeholder-shown) + .field__label {
  top: 0;
  left: var(--space-2);
  font-size: 0.72rem;
  color: var(--color-primary);
}

/* ---------- Password visibility toggle ---------- */

.field__toggle {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: var(--space-1);
  line-height: 1;
  transition: color var(--transition-fast);
}

.field__toggle:hover {
  color: var(--color-text);
}

/* Keep typed text clear of the show/hide button. */
.field:has(.field__toggle) .field__input {
  padding-right: 48px;
}

/* ---------- Two-column field rows ---------- */

.field-row {
  display: flex;
  gap: var(--space-3);
}

.field-row .field {
  flex: 1;
}

/* ---------- Submit button ---------- */

.btn-primary {
  width: 100%;
  height: 48px;
  border: 2px solid var(--color-bg);
  border-radius: var(--radius-inner);
  background: var(--color-primary);
  color: #ffffff;
  font-family: var(--typography);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  cursor: pointer;
  margin-top: var(--space-2);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
}

.btn-primary:active {
  background: var(--color-primary-active);
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- Error message ---------- */

.form-error {
  width: 100%;
  background: rgba(220, 53, 69, 0.12);
  border: 1px solid rgba(220, 53, 69, 0.4);
  color: #ffe1e4;
  border-radius: var(--radius-inner);
  padding: var(--space-2) var(--space-3);
  font-size: 0.85rem;
  text-align: left;
}

/* ---------- Login and Sign Up links ---------- */

.auth-card__switch {
  margin-top: var(--space-4);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
}

.auth-card__switch a {
  color: #ffffff;
  font-style: italic;
  text-decoration: underline;
  font-weight: 700;
}

.auth-card__switch a:hover {
  color: var(--color-primary-hover);
}

/* ---------- Card footer ---------- */

.auth-card__footer {
  margin-top: var(--space-5);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- Mobile login card ---------- */

@media (max-width: 575.98px) {
  .auth-card {
    max-width: 100%;
  }
}