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

:root {
    --bg: #fff8f1;
    --surface: rgba(255, 255, 255, 0.86);
    --border: rgba(15, 23, 42, 0.12);
    --fg: #111827;
    --muted: #6b7280;
    --accent: #ea580c;
    --accent-red: #e11d48;
    --success: #16a34a;
    --info: #c2410c;
    --radius: .75rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0f;
        --surface: rgba(28, 25, 23, 0.9);
        --border: rgba(255, 255, 255, 0.1);
        --fg: #fafafa;
        --muted: #a1a1aa;
        --accent: #fb923c;
        --accent-red: #f43f5e;
        --success: #4ade80;
        --info: #fdba74;
    }
}

body {
    background: var(--bg);
    color: var(--fg);
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 1.125rem;
    line-height: 1.55;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

.auth-shell {
    position: relative;
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    overflow: hidden;
}

.auth-background {
    pointer-events: none;
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(251, 146, 60, 0.22), transparent 36%),
        radial-gradient(circle at 88% 76%, rgba(244, 63, 94, 0.16), transparent 40%);
}

@media (prefers-color-scheme: dark) {
    .auth-background {
        background:
            radial-gradient(circle at 12% 18%, rgba(249, 115, 22, 0.2), transparent 42%),
            radial-gradient(circle at 88% 76%, rgba(244, 63, 94, 0.14), transparent 44%);
    }
}

.auth-content {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    justify-content: center;
}

.auth-stack {
    width: 100%;
    max-width: 420px;
}

.brand {
    display: block;
    text-align: center;
    text-decoration: none;
    color: var(--fg);
    font-size: clamp(2.85rem, 4.4vw, 3.2rem);
    font-weight: 500;
    letter-spacing: -.05em;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.brand:hover {
    opacity: .92;
}

.brand span {
    background: linear-gradient(to right, #fb923c, #f97316, #f43f5e);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.15rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 30px 70px -40px rgba(17, 24, 39, 0.35);
    backdrop-filter: blur(10px);
}

@media (max-width: 640px) {
    .card {
        padding: 1.25rem;
        border-radius: .875rem;
    }
}

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

label {
    display: block;
    font-size: 1rem;
    color: var(--muted);
    margin-bottom: .45rem;
}

input,
select {
    width: 100%;
    background: color-mix(in srgb, var(--surface) 45%, transparent);
    border: 1px solid var(--border);
    border-radius: .5rem;
    color: var(--fg);
    font-size: 1.0625rem;
    padding: .85rem 1rem;
    outline: none;
    transition: border-color .15s;
}

input:focus,
select:focus {
    border-color: var(--accent);
}

input:focus-visible,
select:focus-visible,
.btn:focus-visible,
.auth-links a:focus-visible,
.language-switcher a:focus-visible,
.brand:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--accent) 70%, transparent);
    outline-offset: 2px;
}

input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 40px var(--surface) inset !important;
    -webkit-text-fill-color: var(--fg) !important;
}

input.input-error,
select.input-error {
    border-color: var(--accent-red);
}

/* Date of birth — 3 split inputs */
.dob-group {
    display: grid;
    grid-template-columns: 2fr 3fr 3fr;
    gap: .5rem;
}

/* Handle availability indicator */
.handle-status {
    font-size: .9375rem;
    margin-top: .25rem;
    min-height: 1.25rem;
}

.handle-status.available { color: var(--success); }
.handle-status.unavailable { color: var(--accent-red); }
.handle-status.checking { color: var(--muted); }

.btn {
    display: block;
    width: 100%;
    padding: .85rem 1rem;
    background: linear-gradient(90deg, #fb923c 0%, #f97316 52%, #f43f5e 100%);
    color: #fff;
    font-size: 1.0625rem;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: .5rem;
    cursor: pointer;
    margin-top: 1.65rem;
    box-shadow: 0 10px 24px -14px rgba(249, 115, 22, 0.75);
    transition: transform .15s, filter .15s, box-shadow .15s;
}

.btn:hover {
    transform: translateY(-1px);
    filter: saturate(1.05) brightness(1.03);
    box-shadow: 0 14px 28px -14px rgba(249, 115, 22, 0.85);
}
.btn:disabled { opacity: .5; cursor: not-allowed; }

.error {
    background: color-mix(in srgb, var(--accent-red) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent-red) 36%, transparent);
    border-radius: .5rem;
    color: color-mix(in srgb, var(--accent-red) 78%, white);
    font-size: 1rem;
    padding: .85rem 1rem;
    margin-bottom: 1rem;
}

.success {
    background: color-mix(in srgb, var(--success) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--success) 32%, transparent);
    border-radius: .5rem;
    color: var(--success);
    font-size: 1rem;
    padding: .85rem 1rem;
    margin-bottom: 1rem;
}

.info {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
    border-radius: .5rem;
    color: var(--info);
    font-size: 1rem;
    padding: .85rem 1rem;
    margin-bottom: 1rem;
}

.debug-token {
    background: rgba(255,255,255,.05);
    border: 1px solid var(--border);
    border-radius: .5rem;
    color: var(--muted);
    font-family: monospace;
    font-size: .8125rem;
    padding: .625rem .875rem;
    margin-top: .5rem;
    word-break: break-all;
}

.auth-links {
    margin-top: 1.35rem;
    display: flex;
    flex-direction: column;
    gap: .45rem;
    text-align: center;
}

.auth-links a {
    color: var(--muted);
    font-size: 1rem;
    text-decoration: none;
    transition: color .15s;
}

.auth-links a:hover { color: var(--fg); }

.auth-footer {
    border-top: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
    background: color-mix(in srgb, var(--surface) 75%, transparent);
    backdrop-filter: blur(8px);
    text-align: center;
    padding: 1rem;
    font-size: 1rem;
    color: var(--muted);
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}

.language-switcher a {
    color: var(--muted);
    text-decoration: none;
    transition: color .15s;
}

.language-switcher a:hover,
.language-switcher a.active {
    color: var(--fg);
}

.language-switcher a.active {
    font-weight: 600;
}

.auth-footer p {
    margin-top: .35rem;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.footer-info p {
    margin: 0;
}

.footer-info .version {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: .25rem;
}