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

:root,
[data-theme="dark"] {
    --auth-surface: #0b1220;
    --auth-panel: #111c2f;
    --auth-panel-strong: #17233a;
    --auth-text: #f8fafc;
    --auth-text-muted: #aab8d0;
    --auth-border: rgba(148, 163, 184, 0.18);
    --auth-accent: #60a5fa;
    --auth-accent-strong: #3b82f6;
    --auth-success: #34d399;
    --auth-danger: #ef4444;
    --auth-field: rgba(15, 23, 42, 0.78);
    --auth-radius: 8px;
    --auth-font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    --auth-color-scheme: dark;
    --auth-page-glow: rgba(96, 165, 250, 0.08);
    --auth-card-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
    --auth-mark-inset: rgba(255, 255, 255, 0.28);
    --auth-mark-detail: rgba(255, 255, 255, 0.82);
    --auth-mark-fill: rgba(255, 255, 255, 0.78);
    --auth-mark-shadow: 0 12px 24px rgba(96, 165, 250, 0.24);
    --auth-alert-bg: rgba(239, 68, 68, 0.13);
    --auth-alert-border: rgba(239, 68, 68, 0.42);
    --auth-alert-text: #fecaca;
    --auth-success-alert-bg: rgba(52, 211, 153, 0.13);
    --auth-success-alert-border: rgba(52, 211, 153, 0.42);
    --auth-success-alert-text: #bbf7d0;
    --auth-pre-bg: rgba(2, 6, 23, 0.55);
    --auth-readonly-field: rgba(15, 23, 42, 0.5);
    --auth-placeholder: rgba(170, 184, 208, 0.78);
    --auth-focus-field: rgba(15, 23, 42, 0.92);
    --auth-focus-ring: rgba(96, 165, 250, 0.16);
    --auth-button-border: rgba(96, 165, 250, 0.42);
    --auth-button-shadow: 0 12px 24px rgba(59, 130, 246, 0.2);
    --auth-button-hover-shadow: 0 14px 28px rgba(59, 130, 246, 0.28);
    --auth-link: #93c5fd;
    --auth-danger-text: #fca5a5;
    --auth-button-text: #ffffff;
}

[data-theme="light"] {
    --auth-surface: #f3f6fb;
    --auth-panel: #ffffff;
    --auth-panel-strong: #f8fafc;
    --auth-text: #102033;
    --auth-text-muted: #5d6b82;
    --auth-border: rgba(15, 23, 42, 0.12);
    --auth-accent: #2563eb;
    --auth-accent-strong: #1d4ed8;
    --auth-success: #059669;
    --auth-danger: #dc2626;
    --auth-field: #ffffff;
    --auth-color-scheme: light;
    --auth-page-glow: rgba(37, 99, 235, 0.09);
    --auth-card-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    --auth-mark-inset: rgba(255, 255, 255, 0.5);
    --auth-mark-detail: rgba(255, 255, 255, 0.88);
    --auth-mark-fill: rgba(255, 255, 255, 0.84);
    --auth-mark-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
    --auth-alert-bg: #fff1f2;
    --auth-alert-border: rgba(220, 38, 38, 0.32);
    --auth-alert-text: #991b1b;
    --auth-success-alert-bg: #ecfdf5;
    --auth-success-alert-border: rgba(5, 150, 105, 0.32);
    --auth-success-alert-text: #065f46;
    --auth-pre-bg: #f8fafc;
    --auth-readonly-field: #f1f5f9;
    --auth-placeholder: rgba(93, 107, 130, 0.72);
    --auth-focus-field: #ffffff;
    --auth-focus-ring: rgba(37, 99, 235, 0.15);
    --auth-button-border: rgba(37, 99, 235, 0.42);
    --auth-button-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
    --auth-button-hover-shadow: 0 14px 28px rgba(37, 99, 235, 0.24);
    --auth-link: #1d4ed8;
    --auth-danger-text: #b91c1c;
    --auth-button-text: #ffffff;
}

html {
    min-height: 100%;
}

body.auth-page {
    margin: 0;
    min-height: 100vh;
    background:
        linear-gradient(180deg, var(--auth-page-glow), transparent 34%),
        var(--auth-surface);
    color: var(--auth-text);
    font-family: var(--auth-font);
    display: grid;
    place-items: center;
    padding: 32px 16px;
    color-scheme: var(--auth-color-scheme);
}

.auth-shell {
    width: min(100%, 420px);
}

.auth-shell-wide {
    width: min(100%, 720px);
}

.auth-card {
    width: 100%;
    background: color-mix(in srgb, var(--auth-panel) 94%, transparent);
    border: 1px solid var(--auth-border);
    border-radius: var(--auth-radius);
    box-shadow: var(--auth-card-shadow);
    padding: clamp(24px, 5vw, 36px);
}

.auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    color: var(--auth-text);
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1;
}

.auth-brand-mark {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: var(--auth-radius);
    background: linear-gradient(135deg, var(--auth-accent), color-mix(in srgb, var(--auth-success) 70%, var(--auth-accent)));
    box-shadow: inset 0 0 0 1px var(--auth-mark-inset), var(--auth-mark-shadow);
}

.auth-brand-mark::before,
.auth-brand-mark::after {
    content: "";
    position: absolute;
    border-radius: 3px;
    border: 1px solid var(--auth-mark-detail);
}

.auth-brand-mark::before {
    inset: 8px 10px 10px 8px;
}

.auth-brand-mark::after {
    width: 8px;
    height: 8px;
    right: 7px;
    bottom: 7px;
    background: var(--auth-mark-fill);
}

.auth-card h1,
.auth-card h2 {
    margin: 0 0 8px;
    color: var(--auth-text);
    font-weight: 800;
    line-height: 1.15;
}

.auth-card h1 {
    font-size: clamp(1.6rem, 3vw, 2rem);
}

.auth-card h2 {
    font-size: clamp(1.45rem, 3vw, 1.8rem);
}

.subtitle,
.setup-subtitle {
    margin: 0 0 24px;
    color: var(--auth-text-muted);
    font-size: 0.96rem;
    line-height: 1.55;
}

.alert,
.qcrm-validation-summary {
    background: var(--auth-alert-bg);
    border: 1px solid var(--auth-alert-border);
    color: var(--auth-alert-text);
    padding: 0.875rem 1rem;
    border-radius: var(--auth-radius);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.alert-success {
    background: var(--auth-success-alert-bg);
    border-color: var(--auth-success-alert-border);
    color: var(--auth-success-alert-text);
}

.qcrm-validation-summary p {
    margin: 0 0 0.75rem;
}

.qcrm-validation-summary p:last-child {
    margin-bottom: 0;
}

.qcrm-validation-summary pre {
    overflow-x: auto;
    margin: 1rem 0 0;
    padding: 1rem;
    border-radius: var(--auth-radius);
    background: var(--auth-pre-bg);
    border: 1px solid var(--auth-border);
    color: var(--auth-text);
    font-size: 0.84rem;
    line-height: 1.55;
}

.form,
.qcrm-form {
    display: grid;
    gap: 1rem;
}

.form-group,
.qcrm-form-row {
    display: grid;
    gap: 0.45rem;
}

label,
.qcrm-form-label {
    display: block;
    color: var(--auth-text);
    font-weight: 650;
    font-size: 0.9rem;
}

.form-control,
.qcrm-text-input {
    width: 100%;
    min-height: 44px;
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--auth-border);
    border-radius: var(--auth-radius);
    font: inherit;
    background: var(--auth-field);
    color: var(--auth-text);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.form-control[readonly] {
    color: var(--auth-text-muted);
    background: var(--auth-readonly-field);
}

.form-control::placeholder,
.qcrm-text-input::placeholder {
    color: var(--auth-placeholder);
}

.form-control:hover,
.qcrm-text-input:hover {
    border-color: color-mix(in srgb, var(--auth-accent) 42%, var(--auth-border));
}

.form-control:focus,
.qcrm-text-input:focus {
    border-color: var(--auth-accent);
    box-shadow: 0 0 0 4px var(--auth-focus-ring);
    background: var(--auth-focus-field);
}

.btn,
.qcrm-primary-button {
    width: 100%;
    min-height: 44px;
    padding: 0.85rem 1rem;
    border: 1px solid var(--auth-button-border);
    border-radius: var(--auth-radius);
    font: inherit;
    font-weight: 750;
    cursor: pointer;
    background: linear-gradient(180deg, var(--auth-accent), var(--auth-accent-strong));
    color: var(--auth-button-text);
    transition: filter 0.15s ease, box-shadow 0.15s ease;
    box-shadow: var(--auth-button-shadow);
}

.btn:hover,
.btn:focus-visible,
.qcrm-primary-button:hover,
.qcrm-primary-button:focus-visible {
    filter: brightness(1.06);
    box-shadow: var(--auth-button-hover-shadow);
}

.btn:disabled {
    cursor: wait;
    opacity: 0.72;
}

.inline-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: -0.35rem;
}

.secondary-link,
.footer-links a,
.footer-text a {
    color: var(--auth-link);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 650;
}

.secondary-link:hover,
.footer-links a:hover,
.footer-text a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.helper-text {
    margin-top: 0.25rem;
    color: var(--auth-text-muted);
    font-size: 0.84rem;
    line-height: 1.45;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--auth-text);
    font-weight: 650;
    margin-top: 0.25rem;
}

.checkbox-row input[type="checkbox"] {
    width: 1.08rem;
    height: 1.08rem;
    accent-color: var(--auth-accent);
    margin: 0;
}

.checkbox-hint {
    margin-top: -0.75rem;
}

.footer-links,
.footer-text {
    text-align: center;
    color: var(--auth-text-muted);
    margin-top: 1.1rem;
    font-size: 0.86rem;
    line-height: 1.5;
}

.text-danger,
.qcrm-validation,
.field-validation-error {
    display: block;
    margin-top: 0.25rem;
    color: var(--auth-danger-text);
    font-size: 0.84rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.setup-card {
    max-width: 720px;
}

.setup-submit {
    margin-top: 0.25rem;
}

@media (max-width: 480px) {
    body.auth-page {
        padding: 16px;
        place-items: start center;
    }

    .auth-card {
        padding: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}