/* ==========================================================================
   Wanderbux auth pages (login / register) — matches the marketing homepage's
   "travel ledger" design: warm paper, ink, ochre/vermillion/green accents,
   boarding-pass card with a perforated stub. Standalone (no theme.css).
   ========================================================================== */

:root {
    --paper: #f7f1e2;
    --paper-2: #efe7d1;
    --card: #fffdf6;
    --ink: #1b1510;
    --ink-soft: rgba(27, 21, 16, 0.74);
    --ink-faint: rgba(27, 21, 16, 0.48);
    --line: rgba(27, 21, 16, 0.18);
    --line-strong: rgba(27, 21, 16, 0.38);
    --accent: #c07514;           /* ochre */
    --accent-2: #d6472e;         /* vermillion */
    --accent-3: #25684d;         /* deep green */
    --accent-ink: #fff9ec;
    --stamp: #d6472e;
    --shadow: 0 24px 60px rgba(27, 21, 16, 0.16);
}

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

body {
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background:
        radial-gradient(ellipse 90% 60% at 50% -10%, rgba(192, 117, 20, 0.12), transparent 60%),
        var(--paper);
    color: var(--ink);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
}

::selection {
    background: var(--accent);
    color: var(--accent-ink);
}

/* Printed-paper grain, same as the homepage */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='160' height='160' filter='url(%23n)'/></svg>");
    opacity: 0.05;
    mix-blend-mode: multiply;
}

.auth-wrap {
    width: 100%;
    max-width: 440px;
}

.auth-wrap.wide {
    max-width: 500px;
}

/* --------------------------------------------------------------------------
   Brand header
   -------------------------------------------------------------------------- */

.brand-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    text-decoration: none;
    color: var(--ink);
    margin-bottom: 1.75rem;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.brand-mark {
    width: 34px;
    height: 34px;
    color: var(--ink);
}

.brand-word {
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 700;
    font-size: 1.7rem;
    letter-spacing: -0.01em;
}

.brand-word sup {
    font-size: 0.55em;
    font-weight: 500;
    color: var(--ink-faint);
}

.brand-tagline {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
}

/* --------------------------------------------------------------------------
   Card (boarding-pass style)
   -------------------------------------------------------------------------- */

.auth-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.card-main {
    padding: 2rem 2.1rem 1.9rem;
    position: relative;
}

/* Corner stamp ("Arrivals" / "Departures") */
.card-stamp {
    position: absolute;
    top: 1.4rem;
    right: 1.5rem;
    transform: rotate(7deg);
    border: 2px solid var(--stamp);
    color: var(--stamp);
    border-radius: 6px;
    padding: 0.18rem 0.6rem;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.66rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.55;
    pointer-events: none;
    z-index: 1;
}

.auth-card h2 {
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 600;
    font-size: 1.9rem;
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
}

.auth-card h2 em {
    font-style: italic;
    color: var(--accent-2);
}

.subtitle {
    color: var(--ink-soft);
    font-size: 0.95rem;
    margin-bottom: 1.6rem;
}

/* --------------------------------------------------------------------------
   Form
   -------------------------------------------------------------------------- */

.form-group {
    margin-bottom: 1.1rem;
}

.form-label {
    display: block;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    background: var(--paper);
    border: 1.5px solid var(--line);
    border-radius: 6px;
    padding: 0.7rem 0.9rem;
    font-family: 'Instrument Sans', sans-serif;
    font-size: 0.98rem;
    color: var(--ink);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control::placeholder {
    color: var(--ink-faint);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(192, 117, 20, 0.15);
    background: var(--card);
}

.form-text {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.68rem;
    color: var(--ink-faint);
    margin-top: 0.35rem;
}

.form-error {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.72rem;
    color: var(--accent-2);
    margin-top: 0.35rem;
    min-height: 1em;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    font-family: 'Instrument Sans', sans-serif;
    font-weight: 600;
    font-size: 0.98rem;
    text-decoration: none;
    padding: 0.8rem 1.4rem;
    border-radius: 6px;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    white-space: nowrap;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-solid {
    background: var(--accent-2);
    color: var(--accent-ink);
    border-color: var(--accent-2);
}

.btn-solid:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(214, 71, 46, 0.35);
}

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line-strong);
}

.btn-ghost:hover {
    border-color: var(--ink);
    transform: translateY(-2px);
}

.btn svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}

.btn-stack {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

/* --------------------------------------------------------------------------
   Divider
   -------------------------------------------------------------------------- */

.divider {
    display: flex;
    align-items: center;
    margin: 1.4rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 2px dashed var(--line);
}

.divider span {
    padding: 0 1rem;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   Flash messages
   -------------------------------------------------------------------------- */

.alert {
    border: 1.5px solid var(--line);
    border-left: 4px solid var(--ink-faint);
    border-radius: 6px;
    background: var(--paper);
    padding: 0.7rem 1rem;
    font-size: 0.9rem;
    color: var(--ink-soft);
    margin-bottom: 1rem;
}

.alert-danger {
    border-left-color: var(--accent-2);
    color: var(--accent-2);
}

.alert-success {
    border-left-color: var(--accent-3);
    color: var(--accent-3);
}

.alert-warning,
.alert-info {
    border-left-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Extras
   -------------------------------------------------------------------------- */

.info-note {
    margin-top: 1.4rem;
    border: 1.5px dashed var(--line-strong);
    border-radius: 6px;
    padding: 0.6rem 0.9rem;
    text-align: center;
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--ink-faint);
}

.info-note strong {
    color: var(--accent);
    font-weight: 600;
}

.passkey-msg {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.72rem;
    color: var(--ink-faint);
    text-align: center;
    margin-top: 0.6rem;
    min-height: 1.2em;
}

/* Password strength rail (class names consumed by register JS) */
.password-strength {
    height: 4px;
    border-radius: 2px;
    background: var(--paper-2);
    margin-top: 0.5rem;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.password-strength-weak {
    width: 33%;
    background: var(--accent-2);
}

.password-strength-medium {
    width: 66%;
    background: var(--accent);
}

.password-strength-strong {
    width: 100%;
    background: var(--accent-3);
}

/* --------------------------------------------------------------------------
   Perforated stub (cross-link between login and register)
   -------------------------------------------------------------------------- */

.auth-stub {
    border-top: 2px dashed var(--line-strong);
    background: var(--paper-2);
    padding: 1rem 2.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    position: relative;
}

.auth-stub::before,
.auth-stub::after {
    content: '';
    position: absolute;
    top: -11px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--paper);
    border: 1px solid var(--line);
}

.auth-stub::before { left: -11px; }
.auth-stub::after { right: -11px; }

.stub-label {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
}

.stub-link {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--accent-2);
    text-decoration: none;
    transition: color 0.15s ease;
}

.stub-link:hover {
    color: var(--ink);
}

/* --------------------------------------------------------------------------
   Back to home
   -------------------------------------------------------------------------- */

.back-home {
    text-align: center;
    margin-top: 1.5rem;
}

.back-home a {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    text-decoration: none;
    transition: color 0.15s ease;
}

.back-home a:hover {
    color: var(--accent);
}

/* --------------------------------------------------------------------------
   Small screens / reduced motion
   -------------------------------------------------------------------------- */

@media (max-width: 480px) {
    .card-main {
        padding: 1.6rem 1.4rem;
    }

    .auth-stub {
        padding: 0.9rem 1.4rem;
        flex-direction: column;
        gap: 0.25rem;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    .btn,
    .btn:hover {
        transform: none;
    }
}