/* ============================================================
   AevenSpace — Authentication pages
   Reuses tokens, ambient (sun/clouds), buttons and type from site.css.
   Adds: auth layout, form fields, social buttons, spinners, planes.
   ============================================================ */

/* Keep the fixed ambient layers from ever creating horizontal scroll */
html, body { overflow-x: hidden; }

/* ─── Airplanes (same drift as the landing page) ─── */
.planes-layer { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.plane {
    position: absolute; color: var(--sky-deep); opacity: 0.28;
    will-change: transform; filter: drop-shadow(0 4px 6px rgba(26,34,56,0.10));
}
.plane svg { display: block; }
.plane-1 { top: 16vh; left: -8%; animation: planeFly1 34s linear infinite; }
.plane-2 { top: 52vh; left: -8%; color: var(--amber-deep); opacity: 0.22; animation: planeFly2 46s linear infinite; animation-delay: 8s; }
.plane-3 { top: 78vh; left: -8%; opacity: 0.2; animation: planeFly3 40s linear infinite; animation-delay: 18s; }
@keyframes planeFly1 {
    0%   { transform: translate(0,0) rotate(-4deg); }
    50%  { transform: translate(58vw,-6vh) rotate(-1deg); }
    100% { transform: translate(120vw,3vh) rotate(-4deg); }
}
@keyframes planeFly2 {
    0%   { transform: translate(0,0) rotate(2deg); }
    50%  { transform: translate(55vw,7vh) rotate(5deg); }
    100% { transform: translate(120vw,-4vh) rotate(2deg); }
}
@keyframes planeFly3 {
    0%   { transform: translate(0,0) rotate(-2deg); }
    50%  { transform: translate(60vw,-5vh) rotate(-5deg); }
    100% { transform: translate(120vw,2vh) rotate(-2deg); }
}

/* ─── Top-left brand link ─── */
.auth-brand {
    position: fixed; top: 1.5rem; left: 2rem; z-index: 10;
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: 'Outfit', -apple-system, sans-serif;
    font-weight: 300; font-size: 1.2rem;
    letter-spacing: 0.01em; color: var(--ink);
    transition: opacity var(--transition);
}
.auth-brand:hover { opacity: 0.7; }
.auth-brand .logo-mark { width: 28px; height: 28px; background: url("../assets/aeven-logo-greenorange.png") center/contain no-repeat; }

/* ─── Layout ─── */
.auth-page {
    position: relative; z-index: 1;
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 6rem 1.25rem 3rem;
}

.auth-card {
    width: 100%; max-width: 440px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: var(--shadow-lg);
    padding: 2.5rem 2.35rem 2.25rem;
    position: relative; z-index: 1;
    animation: authCardIn 0.7s var(--ease-out-smooth) both;
}
@keyframes authCardIn {
    from { opacity: 0; transform: translateY(18px) scale(0.985); }
    to   { opacity: 1; transform: none; }
}

/* ─── Header ─── */
.auth-head { text-align: center; margin-bottom: 1.75rem; }
.auth-head .logo-mark {
    width: 44px; height: 44px;
    background: url("../assets/aeven-logo-greenorange.png") center/contain no-repeat;
    display: inline-block; margin-bottom: 1.1rem;
}
.auth-head h1 {
    font-family: var(--font-hero); text-transform: uppercase;
    font-size: clamp(2.1rem, 6vw, 2.7rem); letter-spacing: 0.5px; line-height: 1.0;
    color: var(--ink); margin-bottom: 0.5rem;
}
.auth-head p { font-family: var(--font-serif); color: var(--slate); font-size: 0.95rem; line-height: 1.5; }

/* ─── Social sign-in row ─── */
.social-row { display: grid; grid-template-columns: 1fr; gap: 0.65rem; margin-bottom: 1.5rem; }
.social-btn {
    position: relative;
    display: flex; align-items: center; justify-content: center; gap: 0.6rem;
    height: 46px; border: 1px solid var(--border-strong); border-radius: 12px;
    background: var(--surface); color: var(--ink); cursor: pointer;
    font-family: var(--font-display); font-size: 0.92rem; font-weight: 500;
    transition: border-color var(--transition), background var(--transition),
                transform var(--transition), box-shadow var(--transition);
}
.social-btn span { line-height: 1; }
.social-btn:hover { border-color: var(--sky); background: var(--sky-glow); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.social-btn:active { transform: translateY(0) scale(0.98); }
.social-btn:disabled { cursor: default; opacity: 0.65; }
.social-btn svg { display: block; }
.social-btn.is-loading > * { opacity: 0; }
.social-btn.is-loading::after {
    content: ''; position: absolute; top: 50%; left: 50%;
    width: 17px; height: 17px; margin: -9px 0 0 -9px;
    border: 2px solid var(--border-strong); border-top-color: var(--sky-deep);
    border-radius: 50%; animation: authSpin 0.7s linear infinite;
}

/* ─── Divider ─── */
.auth-divider {
    display: flex; align-items: center; gap: 0.9rem; margin: 0 0 1.4rem;
    color: var(--slate-light); font-family: var(--font-display);
    font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ─── Fields ─── */
.auth-field { margin-bottom: 1.05rem; }
.auth-field label {
    display: block; font-family: var(--font-display); font-size: 0.78rem; font-weight: 600;
    color: var(--ink-soft); margin-bottom: 0.4rem;
}
.auth-input-wrap { position: relative; }
.auth-input {
    width: 100%; padding: 0.8rem 0.95rem; font-size: 0.95rem;
    font-family: var(--font-serif); color: var(--ink);
    background: var(--paper); border: 1px solid var(--border-strong); border-radius: 11px;
    outline: none; transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.auth-input::placeholder { color: var(--slate-light); }
.auth-input:focus { border-color: var(--sky); background: var(--surface); box-shadow: 0 0 0 3px rgba(155,203,75,0.16); }
.auth-input.invalid { border-color: var(--red); box-shadow: 0 0 0 3px rgba(229,83,75,0.13); }
.auth-input[type="password"], .auth-input.has-toggle { padding-right: 2.8rem; }

.pw-toggle {
    position: absolute; top: 50%; right: 0.5rem; transform: translateY(-50%);
    width: 34px; height: 34px; border: none; background: transparent; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--slate-light); border-radius: 8px; transition: color var(--transition), background var(--transition);
}
.pw-toggle:hover { color: var(--ink-soft); background: rgba(26,34,56,0.05); }
.pw-toggle .eye-off { display: none; }
.pw-toggle.revealed .eye-on { display: none; }
.pw-toggle.revealed .eye-off { display: block; }

/* ─── Row: forgot password ─── */
.auth-field-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.4rem; }
.auth-field-row label { margin-bottom: 0; }
.forgot-link {
    font-family: var(--font-display); font-size: 0.78rem; font-weight: 500; color: var(--sky-deep);
    transition: color var(--transition);
}
.forgot-link:hover { color: var(--ink); text-decoration: underline; }

/* ─── Submit button (extends .btn-primary from site.css) ─── */
.auth-submit { width: 100%; justify-content: center; margin-top: 0.4rem; height: 50px; font-size: 1rem; }
.auth-submit.is-loading > * { opacity: 0; }
.auth-submit.is-loading::after {
    content: ''; position: absolute; top: 50%; left: 50%;
    width: 19px; height: 19px; margin: -10px 0 0 -10px;
    border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff;
    border-radius: 50%; animation: authSpin 0.7s linear infinite;
}
@keyframes authSpin { to { transform: rotate(360deg); } }

/* ─── Error / success banner ─── */
.auth-banner {
    display: none; align-items: flex-start; gap: 0.55rem;
    margin-bottom: 1.1rem; padding: 0.7rem 0.9rem; border-radius: 11px;
    font-family: var(--font-serif); font-size: 0.87rem; line-height: 1.45;
}
.auth-banner.show { display: flex; animation: bannerIn 0.3s var(--ease-out-smooth); }
.auth-banner svg { flex-shrink: 0; margin-top: 2px; }
.auth-banner.as-error { background: rgba(229,83,75,0.08); border: 1px solid rgba(229,83,75,0.25); color: #b23b34; }
.auth-banner.as-error .ok-ico { display: none; }
.auth-banner.as-success { background: rgba(34,160,107,0.09); border: 1px solid rgba(34,160,107,0.25); color: #1a7a52; }
.auth-banner.as-success .err-ico { display: none; }
@keyframes bannerIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* ─── Footer switch link ─── */
.auth-alt {
    margin-top: 1.6rem; text-align: center;
    font-family: var(--font-serif); font-size: 0.9rem; color: var(--slate);
}
.auth-alt a { font-family: var(--font-display); font-weight: 600; color: var(--sky-deep); transition: color var(--transition); }
.auth-alt a:hover { color: var(--ink); text-decoration: underline; }

.auth-fineprint {
    margin-top: 1.4rem; text-align: center;
    font-family: var(--font-serif); font-size: 0.76rem; color: var(--slate-light); line-height: 1.5;
}
.auth-fineprint a { color: var(--slate); text-decoration: underline; }

/* ─── Responsive ─── */
@media (max-width: 480px) {
    .auth-card { padding: 2rem 1.4rem 1.85rem; border-radius: 18px; }
    .auth-brand { top: 1.1rem; left: 1.25rem; }
    .auth-page { padding: 5rem 1rem 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
    .planes-layer { display: none; }
    .auth-card { animation: none; }
}