/* ═══════════════════════════════════════════════════════════════
   Hirecamp Academy – Authentication System
   style.css – design tokens, reset, layout primitives, components
   Branding: primary #A21D20 · secondary white · light off-white bg
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Brand */
  --brand: #a21d20;
  --brand-dark: #831719;
  --brand-hover: #b91c1c;
  --brand-tint: #fef2f2;
  --brand-tint-2: #fbe9ea;
  --brand-glow: rgba(162, 29, 32, 0.14);

  /* Neutrals */
  --navy: #101828;
  --heading: #111827;
  --text: #374151;
  --muted: #6b7280;
  --muted-2: #98a2b3;
  --border: #e5e7eb;
  --border-soft: #eef0f3;

  /* Surfaces */
  --bg: #faf8f8;
  --bg-alt: #f4f5f7;
  --card: #ffffff;
  --input-bg: #fcfcfd;

  /* Status */
  --success: #15803d;
  --success-bg: #ecfdf3;
  --success-border: #abefc6;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --danger-border: #fecdca;
  --warning: #b54708;
  --warning-bg: #fffaeb;

  /* Radii */
  --radius-xl: 24px;
  --radius: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-sm: 0 2px 8px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 10px 30px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 24px 60px rgba(16, 24, 40, 0.12);
  --shadow-brand: 0 10px 24px rgba(162, 29, 32, 0.28);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --transition: all 0.25s var(--ease);

  /* Type */
  --font-display: 'Poppins', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ── Reset ─────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--heading);
  line-height: 1.25;
  margin: 0;
}

p { margin: 0; }

a {
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s var(--ease);
}

a:hover { color: var(--brand-hover); }

img, svg { max-width: 100%; display: block; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--brand-glow);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Utility ───────────────────────────────────────────────── */
.text-center { text-align: center; }
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Brand mark ────────────────────────────────────────────── */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--heading);
}

.brand__logo {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  box-shadow: var(--shadow-brand);
  flex: none;
}

.brand__logo svg { width: 24px; height: 24px; }

.brand__name { font-size: 1.15rem; line-height: 1.1; }
.brand__name span { color: var(--brand); }
.brand__tagline {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  user-select: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(162, 29, 32, 0.34);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: #fff;
  border-color: var(--border);
  color: var(--navy);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-tint); }

.btn--danger {
  background: var(--danger);
  color: #fff;
}

.btn[disabled],
.btn[aria-disabled='true'] {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none;
}

.btn__spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

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

/* ── Forms ─────────────────────────────────────────────────── */
.field {
  margin-bottom: 18px;
}

.field__label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 7px;
}

.field__label .req { color: var(--brand); margin-left: 2px; }

.field__control {
  position: relative;
  display: flex;
  align-items: center;
}

.input,
.select {
  width: 100%;
  padding: 13px 14px;
  background: var(--input-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--heading);
  transition: var(--transition);
  appearance: none;
}

.input::placeholder { color: var(--muted-2); }

.input:hover,
.select:hover { border-color: #d7dbe0; }

.input:focus,
.select:focus {
  outline: none;
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 4px var(--brand-glow);
}

.field.has-error .input,
.field.has-error .select {
  border-color: var(--danger);
  background: var(--danger-bg);
}

.field.has-error .input:focus,
.field.has-error .select:focus { box-shadow: 0 0 0 4px rgba(180, 35, 24, 0.12); }

.field.is-valid .input,
.field.is-valid .select { border-color: var(--success-border); }

.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.field__error {
  display: none;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--danger);
}
.field.has-error .field__error { display: flex; }

.field__hint {
  margin-top: 6px;
  font-size: 0.76rem;
  color: var(--muted);
}

/* password toggle */
.field__control .input--password { padding-right: 46px; }

.toggle-password {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
}
.toggle-password:hover { color: var(--brand); background: var(--brand-tint); }
.toggle-password svg { width: 20px; height: 20px; }

/* checkbox */
.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.5;
}

.checkbox input {
  appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 1px 0 0;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

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

.checkbox input:checked::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox input:focus-visible { outline: 3px solid var(--brand-glow); }

/* password strength */
.strength { margin-top: 10px; }
.strength__bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.strength__bar {
  height: 5px;
  border-radius: var(--radius-pill);
  background: var(--border);
  transition: var(--transition);
}
.strength__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 7px;
  font-size: 0.75rem;
  color: var(--muted);
}
.strength__label { font-weight: 600; }

.strength[data-level='1'] .strength__bar:nth-child(-n+1) { background: #dc2626; }
.strength[data-level='2'] .strength__bar:nth-child(-n+2) { background: #f59e0b; }
.strength[data-level='3'] .strength__bar:nth-child(-n+3) { background: #eab308; }
.strength[data-level='4'] .strength__bar:nth-child(-n+4) { background: var(--success); }
.strength[data-level='1'] .strength__label { color: #dc2626; }
.strength[data-level='2'] .strength__label { color: #b45309; }
.strength[data-level='3'] .strength__label { color: #a16207; }
.strength[data-level='4'] .strength__label { color: var(--success); }

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 13px 15px;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  font-weight: 500;
  border: 1px solid transparent;
  margin-bottom: 18px;
  animation: fadeSlide 0.35s var(--ease);
}
.alert svg { width: 19px; height: 19px; flex: none; margin-top: 1px; }
.alert--error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger); }
.alert--success { background: var(--success-bg); border-color: var(--success-border); color: var(--success); }
.alert--info { background: var(--warning-bg); border-color: #fedf89; color: var(--warning); }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Password checklist ────────────────────────────────────── */
.pw-rules {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
}
.pw-rules li {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}
.pw-rules li svg { width: 15px; height: 15px; flex: none; color: var(--muted-2); }
.pw-rules li.met { color: var(--success); }
.pw-rules li.met svg { color: var(--success); }

/* ── Reduced motion ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}