/**
 * Biker Community — sign-in / sign-up dialog and [biker_auth_buttons].
 *
 * Split card: a quiet brand panel beside the form on wide screens, a
 * full-screen sheet on phones. Light by default, follows the theme's
 * data-bs-theme (or the OS setting) for dark mode.
 *
 * @package BikerCommunity
 */

/* ------------------------------------------------------------ Tokens */

.biker-auth,
.biker-auth-buttons {
	--ba-accent: #2457d6;
	--ba-accent-hover: #1c46b0;
	--ba-accent-ring: rgba(36, 87, 214, 0.28);
	--ba-bg: #ffffff;
	--ba-fg: #1f2328;
	--ba-muted: #5b6472;
	--ba-border: #e3e6ec;
	--ba-border-strong: #c9ced8;
	--ba-input-bg: #f7f8fa;
	--ba-hover-bg: #f3f5f8;
	--ba-danger: #c5221f;
	--ba-danger-bg: #fdecea;
	--ba-success: #137333;
	--ba-success-bg: #e6f4ea;
	--ba-radius: 12px;
}

:root[data-bs-theme="dark"] .biker-auth,
:root[data-bs-theme="dark"] .biker-auth-buttons {
	--ba-accent: #5b8cff;
	--ba-accent-hover: #7aa2ff;
	--ba-accent-ring: rgba(91, 140, 255, 0.35);
	--ba-bg: #1c1f24;
	--ba-fg: #e8eaed;
	--ba-muted: #a2a9b4;
	--ba-border: #343941;
	--ba-border-strong: #4a515b;
	--ba-input-bg: #24282e;
	--ba-hover-bg: #2a2f36;
	--ba-danger: #f28b82;
	--ba-danger-bg: rgba(242, 139, 130, 0.12);
	--ba-success: #81c995;
	--ba-success-bg: rgba(129, 201, 149, 0.12);
}

@media (prefers-color-scheme: dark) {
	:root:not([data-bs-theme]) .biker-auth,
	:root:not([data-bs-theme]) .biker-auth-buttons {
		--ba-accent: #5b8cff;
		--ba-accent-hover: #7aa2ff;
		--ba-accent-ring: rgba(91, 140, 255, 0.35);
		--ba-bg: #1c1f24;
		--ba-fg: #e8eaed;
		--ba-muted: #a2a9b4;
		--ba-border: #343941;
		--ba-border-strong: #4a515b;
		--ba-input-bg: #24282e;
		--ba-hover-bg: #2a2f36;
		--ba-danger: #f28b82;
		--ba-danger-bg: rgba(242, 139, 130, 0.12);
		--ba-success: #81c995;
		--ba-success-bg: rgba(129, 201, 149, 0.12);
	}
}

html.biker-auth-lock {
	overflow: hidden;
}

/* ------------------------------------------------------------ Shell */

.biker-auth {
	position: fixed;
	inset: 0;
	z-index: 100000;
	display: none;
	align-items: center;
	justify-content: center;
	padding: 16px;
	font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	color: var(--ba-fg);
	line-height: 1.5;
}

.biker-auth[data-open="true"] {
	display: flex;
}

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

.biker-auth__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(15, 23, 42, 0.55);
	-webkit-backdrop-filter: blur(4px);
	backdrop-filter: blur(4px);
}

.biker-auth__dialog {
	position: relative;
	display: grid;
	grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
	width: min(940px, 100%);
	max-height: calc(100vh - 32px);
	background: var(--ba-bg);
	border-radius: 20px;
	box-shadow: 0 24px 64px rgba(15, 23, 42, 0.28), 0 2px 6px rgba(15, 23, 42, 0.08);
	overflow: hidden;
	animation: biker-auth-in 0.22s ease-out;
}

@keyframes biker-auth-in {
	from { opacity: 0; transform: translateY(8px) scale(0.985); }
	to { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------ Brand panel */

.biker-auth__brand {
	position: relative;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 24px;
	padding: 36px 36px 40px;
	color: #fff;
	background:
		radial-gradient(120% 80% at 0% 0%, rgba(255, 255, 255, 0.14), transparent 60%),
		radial-gradient(90% 70% at 100% 100%, rgba(10, 25, 70, 0.45), transparent 60%),
		linear-gradient(160deg, #2a5fe0 0%, #1d47b8 55%, #15348c 100%);
}

.biker-auth__brand-top {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 700;
	letter-spacing: 0.01em;
}

.biker-auth__mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 38px;
	height: 38px;
	border-radius: 10px;
	background: rgba(255, 255, 255, 0.16);
	box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
}

.biker-auth__brand-name {
	font-size: 1.05rem;
}

.biker-auth__route svg {
	display: block;
	width: 100%;
	height: auto;
	max-height: 240px;
}

.biker-auth__brand-title {
	margin: 0 0 8px;
	font-size: 1.5rem;
	font-weight: 750;
	line-height: 1.2;
	letter-spacing: -0.02em;
}

.biker-auth__brand-text {
	margin: 0;
	color: rgba(255, 255, 255, 0.82);
	font-size: 0.95rem;
}

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

.biker-auth__panel {
	position: relative;
	padding: 44px 44px 36px;
	overflow-y: auto;
	max-height: calc(100vh - 32px);
}

.biker-auth__close {
	position: absolute;
	top: 14px;
	right: 14px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	padding: 0;
	border: 0;
	border-radius: 50%;
	background: transparent;
	color: var(--ba-muted);
	cursor: pointer;
}

.biker-auth__close:hover {
	background: var(--ba-hover-bg);
	color: var(--ba-fg);
}

.biker-auth__view {
	display: none;
}

.biker-auth__view.is-active {
	display: block;
}

.biker-auth__title {
	margin: 0 0 6px;
	font-size: 1.7rem;
	font-weight: 750;
	line-height: 1.2;
	letter-spacing: -0.02em;
	color: var(--ba-fg);
}

.biker-auth__lead {
	margin: 0 0 24px;
	color: var(--ba-muted);
	font-size: 0.95rem;
}

/* Social buttons */

.biker-auth__social {
	display: grid;
	gap: 10px;
}

.biker-auth__social-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 10px;
	min-height: 46px;
	padding: 10px 16px;
	border: 1px solid var(--ba-border);
	border-radius: var(--ba-radius);
	background: var(--ba-bg);
	color: var(--ba-fg);
	font-size: 0.95rem;
	font-weight: 600;
	text-decoration: none;
	transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.biker-auth__social-btn:hover {
	background: var(--ba-hover-bg);
	border-color: var(--ba-border-strong);
	color: var(--ba-fg);
}

.biker-auth__social-btn.is-loading {
	opacity: 0.65;
	pointer-events: none;
}

.biker-auth__social-icon {
	flex: 0 0 auto;
}

.biker-auth__divider {
	display: flex;
	align-items: center;
	gap: 14px;
	margin: 20px 0;
	color: var(--ba-muted);
	font-size: 0.75rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.biker-auth__divider::before,
.biker-auth__divider::after {
	content: "";
	flex: 1;
	height: 1px;
	background: var(--ba-border);
}

/* Fields */

.biker-auth__form {
	display: grid;
	gap: 14px;
}

.biker-auth__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}

.biker-auth__field {
	display: grid;
	gap: 6px;
	min-width: 0;
}

.biker-auth__label {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--ba-fg);
}

.biker-auth__optional {
	font-weight: 400;
	color: var(--ba-muted);
}

.biker-auth__input {
	width: 100%;
	min-height: 46px;
	padding: 10px 14px;
	border: 1px solid var(--ba-border);
	border-radius: 10px;
	background: var(--ba-input-bg);
	color: var(--ba-fg);
	font: inherit;
	font-size: 0.95rem;
	transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.biker-auth__input:hover {
	border-color: var(--ba-border-strong);
}

.biker-auth__input:focus {
	outline: none;
	border-color: var(--ba-accent);
	background: var(--ba-bg);
	box-shadow: 0 0 0 3px var(--ba-accent-ring);
}

.biker-auth__input[readonly] {
	color: var(--ba-muted);
	cursor: default;
}

.biker-auth__input[aria-invalid="true"],
.biker-auth__check input[aria-invalid="true"] {
	border-color: var(--ba-danger);
	box-shadow: 0 0 0 3px var(--ba-danger-bg);
}

.biker-auth__hint {
	font-size: 0.8rem;
	color: var(--ba-muted);
}

.biker-auth__pw {
	position: relative;
	display: block;
}

/* Live username availability (shared with onboarding). */
.biker-auth__avail:empty {
	display: none;
}

.biker-auth__avail,
.biker-onb__avail {
	font-size: 0.82rem;
	color: var(--ba-muted, #5b6472);
}

.biker-auth__avail.is-ok,
.biker-onb__avail.is-ok {
	color: var(--ba-success, #137333);
	font-weight: 600;
}

.biker-auth__avail.is-bad,
.biker-onb__avail.is-bad {
	color: var(--ba-danger, #c5221f);
}

.biker-avail__pick {
	margin: 2px 4px 0 0;
	padding: 2px 9px;
	border: 1px solid currentColor;
	border-radius: 999px;
	background: transparent;
	color: var(--ba-accent, #2457d6);
	font: inherit;
	font-size: 0.8rem;
	font-weight: 600;
	cursor: pointer;
}

.biker-avail__pick:hover {
	background: rgba(36, 87, 214, 0.08);
}

.biker-auth__pw .biker-auth__input {
	padding-right: 46px;
}

.biker-auth__pw-toggle {
	position: absolute;
	top: 50%;
	right: 6px;
	transform: translateY(-50%);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	padding: 0;
	border: 0;
	border-radius: 8px;
	background: transparent;
	color: var(--ba-muted);
	cursor: pointer;
}

.biker-auth__pw-toggle:hover,
.biker-auth__pw-toggle[aria-pressed="true"] {
	color: var(--ba-accent);
}

.biker-auth__row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	flex-wrap: wrap;
	font-size: 0.875rem;
}

.biker-auth__check {
	display: inline-flex;
	align-items: flex-start;
	gap: 8px;
	font-size: 0.875rem;
	color: var(--ba-fg);
	cursor: pointer;
}

.biker-auth__check input {
	width: 18px;
	height: 18px;
	margin: 1px 0 0;
	accent-color: var(--ba-accent);
	flex: 0 0 auto;
}

.biker-auth__terms {
	color: var(--ba-muted);
}

.biker-auth__terms a,
.biker-auth__link {
	color: var(--ba-accent);
	font-weight: 600;
	text-decoration: none;
}

.biker-auth__link {
	padding: 0;
	border: 0;
	background: none;
	font: inherit;
	font-weight: 600;
	cursor: pointer;
}

.biker-auth__terms a:hover,
.biker-auth__link:hover {
	color: var(--ba-accent-hover);
	text-decoration: underline;
}

.biker-auth__submit {
	min-height: 48px;
	margin-top: 4px;
	padding: 12px 18px;
	border: 0;
	border-radius: var(--ba-radius);
	background: var(--ba-accent);
	color: #fff;
	font: inherit;
	font-size: 1rem;
	font-weight: 650;
	cursor: pointer;
	box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
	transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.biker-auth__submit:hover {
	background: var(--ba-accent-hover);
}

.biker-auth__submit:disabled {
	opacity: 0.7;
	cursor: progress;
}

.biker-auth__switch {
	margin: 22px 0 0;
	text-align: center;
	font-size: 0.9rem;
	color: var(--ba-muted);
}

/* Messages */

.biker-auth__message:empty {
	display: none;
}

.biker-auth__message {
	margin: 0 0 14px;
	padding: 10px 14px;
	border-radius: 10px;
	font-size: 0.9rem;
}

.biker-auth__message.is-error {
	background: var(--ba-danger-bg);
	color: var(--ba-danger);
}

.biker-auth__message.is-success {
	background: var(--ba-success-bg);
	color: var(--ba-success);
}

/* Honeypot: off-screen, not display:none (some bots skip hidden fields). */
.biker-auth__hp {
	position: absolute;
	left: -10000px;
	width: 1px;
	height: 1px;
	overflow: hidden;
}

/* Keyboard focus */

.biker-auth a:focus-visible,
.biker-auth button:focus-visible,
.biker-auth__check input:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px var(--ba-accent-ring);
}

.biker-auth__social-btn:focus-visible {
	border-color: var(--ba-accent);
}

/* ------------------------------------------------------------ Responsive */

@media (max-width: 860px) {
	.biker-auth__dialog {
		grid-template-columns: minmax(0, 1fr);
		width: min(480px, 100%);
	}

	.biker-auth__brand {
		display: none;
	}
}

@media (max-width: 560px) {
	.biker-auth {
		padding: 0;
		align-items: stretch;
	}

	.biker-auth__dialog {
		width: 100%;
		max-height: none;
		height: 100%;
		border-radius: 0;
	}

	.biker-auth__panel {
		max-height: 100vh;
		padding: 56px 20px 28px;
	}

	.biker-auth__title {
		font-size: 1.5rem;
	}

	.biker-auth__grid {
		grid-template-columns: minmax(0, 1fr);
	}
}

@media (prefers-reduced-motion: reduce) {
	.biker-auth__dialog {
		animation: none;
	}

	.biker-auth * {
		transition: none !important;
	}
}

/* ------------------------------------------------------------ [biker_auth_buttons] */

.biker-auth-buttons {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	align-items: center;
}

.biker-auth-buttons--center { justify-content: center; }
.biker-auth-buttons--end { justify-content: flex-end; }

.biker-auth-btn {
	display: inline-block;
	padding: 0.55rem 1.15rem;
	font-size: 0.95rem;
	font-weight: 650;
	line-height: 1.2;
	border-radius: 10px;
	text-decoration: none;
	cursor: pointer;
	border: 1px solid transparent;
}

.biker-auth-btn--primary {
	background: var(--ba-accent);
	color: #fff;
}

.biker-auth-btn--primary:hover {
	background: var(--ba-accent-hover);
	color: #fff;
}

.biker-auth-btn--ghost {
	background: transparent;
	color: var(--ba-fg);
	border-color: var(--ba-border);
}

.biker-auth-btn--ghost:hover {
	border-color: var(--ba-accent);
	color: var(--ba-accent);
}