/* base.css — shared across all pages */

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

:root {
  /* Palette */
  --ink: #1a1a18;
  --ink-2: #4a4a46;
  --ink-3: #8a8a84;
  --paper: #faf9f6;
  --paper-2: #f2f0ea;
  --paper-3: #e8e5dc;
  --white: #ffffff;

  /* Brand */
  --accent: #2d6a4f;
  --accent-light: #d8f3dc;
  --accent-mid: #52b788;
  --accent-dark: #1b4332;
  --btn-green: #14532d;
  --btn-green-h: #166534;

  /* Danger */
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --danger-border: #fca5a5;

  /* Success */
  --success: #15803d;
  --success-light: #f0fdf4;
  --success-border: #86efac;

  /* Structure */
  --border: rgba(26,26,24,0.10);
  --border-md: rgba(26,26,24,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  /* Type scale */
  --text-xs: 0.72rem;
  --text-sm: 0.8rem;
  --text-base: 0.95rem;
  --text-input: 0.95rem;
  --text-note: 0.8rem;

  /* Fonts */
  --font-sans: 'DM Sans', sans-serif;
  --font-serif: 'Lora', serif;

  /* Shadows */
  --shadow-card: 0 8px 48px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  --shadow-modal: 0 24px 80px rgba(0,0,0,0.2);
  --shadow-btn: 0 4px 20px rgba(21,128,61,0.25);
  --shadow-btn-h: 0 6px 28px rgba(21,128,61,0.35);

  /* Topbar */
  --topbar-bg: #1c1c1a;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ── NAVIGATION ────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,249,246,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  width: 166px;
  height: 20px;
  text-indent: -99em;
  background: url(../img/cover-letter-tailor-logo.svg) left center no-repeat;
  background-size: 100% auto;
  overflow: hidden;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 400;
  white-space: nowrap;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  white-space: nowrap;
  background: var(--ink) !important;
  color: var(--paper) !important;
  padding: 0.45rem 1.1rem !important;
  border-radius: 100px !important;
  font-weight: 500 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--accent-dark) !important; color: var(--paper) !important; }

/* Member nav variant — tab-style active state */
.nav-tab {
  font-size: 0.875rem;
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 400;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  transition: color 0.2s, background 0.2s;
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-sans);
}
.nav-tab:hover { color: var(--ink); background: var(--paper-2); }
.nav-tab.active { color: var(--ink); background: var(--paper-3); font-weight: 500; }

/* ── BUTTONS ───────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--btn-green);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  padding: 0.8rem 1.8rem;
  border-radius: 100px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}
.btn-primary:hover { background: var(--btn-green-h); transform: translateY(-1px); box-shadow: var(--shadow-btn); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; transform: none; box-shadow: none; }

#modal-signin-btn, 
.auth-submit .btn-primary {
  width: 100%;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-2);
  font-size: 0.95rem;
  font-weight: 400;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: color 0.2s;
}
.btn-secondary:hover { color: var(--ink); }

/* ── FORM FIELD SHARED STYLES ──────────────────────────── */

/* Text inputs (auth forms) */
.field-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--white);
  border: 1.5px solid var(--border-md);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
.field-input::placeholder { color: var(--ink-3); }
.field-input:focus {
  border-color: var(--accent-mid);
  box-shadow: 0 0 0 3px rgba(82,183,136,0.15);
}
.field-input.field-error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(220,38,38,0.10);
}
.field-input.field-success {
  border-color: var(--success);
  box-shadow: 0 0 0 3px rgba(21,128,61,0.10);
}

/* Field wrapper */
.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Auth context — lower specificity than tool.css .field-label,
   but .auth-fields .field-label wins over both */
.auth-fields .field-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Error message under field */
.field-msg {
  font-size: var(--text-sm);
  min-height: 1.2em;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.field-msg.error { color: var(--danger); }
.field-msg.hint  { color: var(--ink-3); opacity: 1; }
.field-msg.visible { opacity: 1; }

/* ── ALERT BANNERS ─────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  display: none;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.45;
}
.alert.visible { display: flex; }
.alert-error   { background: var(--danger-light); border: 1px solid var(--danger-border); color: var(--danger); }
.alert-success { background: var(--success-light); border: 1px solid var(--success-border); color: var(--success); }
.alert-info    { background: var(--paper-2); border: 1px solid var(--border-md); color: var(--ink-2); }

/* ── UTILITY ────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── SPINNER ANIMATION ─────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }

/* ── MODAL OVERLAY ─────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-box {
  background: var(--paper);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 420px;
  padding: 2.25rem 2rem 2rem;
  position: relative;
  transform: translateY(8px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal-box { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-3);
  padding: 0.25rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  line-height: 1;
}
.modal-close:hover { color: var(--ink); background: var(--paper-2); }

.modal-title {
  position: relative;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 0.35rem;
}
.modal-sub {
  font-size: var(--text-sm);
  color: var(--ink-3);
  margin-bottom: 1.5rem;
}

/* ── PASSWORD VISIBILITY TOGGLE ─────────────────────────── */
.field-input-wrap {
  position: relative;
}
.field-input-wrap .field-input {
  padding-right: 2.75rem;
}
.pwd-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-3);
  padding: 0.2rem;
  transition: color 0.2s;
  line-height: 1;
}
.pwd-toggle:hover { color: var(--ink-2); }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 430px) {
  .nav-logo { width: 133px; }
  .nav-links { gap: 0.95rem; }
  .nav-cta { padding: 0.45rem 0.8rem !important; }
}