/* ── Sub-page shared chrome ─────────────────────────────── */

.biff-subpage {
	min-height: 100dvh;
	background: radial-gradient(ellipse at 50% 20%, var(--biff-cosmos) 0%, var(--biff-cosmos-deep) 70%);
	position: relative;
	overflow-x: clip; /* clip unlike hidden does not create a scroll container, preventing double scrollbar */
}

/* Nebula SVG overlay (fixed, behind everything) */
.biff-subpage-bg {
	position: fixed;
	inset: 0;
	pointer-events: none;
	z-index: 0;
}

.biff-nebula-svg {
	position: fixed;
	inset: 0;
	width: 100%;
	height: 100%;
	pointer-events: none;
	z-index: 0;
}

/* Star field */
.biff-subpage-stars { position: fixed; inset: 0; pointer-events: none; z-index: 0; }

.biff-subpage-stars .biff-star {
	position: absolute;
	border-radius: 50%;
}

/* Shooting stars (shooting-star.svg as <img>) */
.biff-subpage-meteor {
	position: fixed;
	pointer-events: none;
	width: 200px;
	height: auto;
	opacity: 0;
	z-index: 1;
}

/* ── Sticky top nav bar ── */
.biff-topbar {
	position: sticky;
	top: 0;
	z-index: 200;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 10px 28px;
	background: var(--biff-cream);
	border-bottom: 3px solid var(--biff-ink);
	box-shadow: 0 4px 0 var(--biff-ink);
}

.biff-topbar-left {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
}

.biff-topbar-avatar {
	width: 44px;
	height: 44px;
	border-radius: 50%;
	border: 2.5px solid var(--biff-ink);
	overflow: hidden;
	flex-shrink: 0;
}

.biff-topbar-avatar img { width: 100%; height: 100%; object-fit: cover; }

.biff-topbar-title {
	font-family: var(--biff-font-display);
	font-size: 24px;
	color: var(--biff-ink);
}

/* ── Planet quick-nav (subpage topbar right) ── */
.biff-planet-nav {
	position: relative;
	flex-shrink: 0;
}

.biff-planet-toggle {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	box-sizing: border-box;
	flex-shrink: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	min-width: 44px;
	min-height: 44px;
	border-radius: 50%;
	background: var(--biff-cosmos);
	border: 2.5px solid var(--biff-ink);
	font-size: 22px;
	cursor: pointer;
	padding: 0;
	margin: 0;
	color: inherit;
	font-family: inherit;
	line-height: 1;
	transition: transform 100ms;
	position: relative;
}
.biff-planet-toggle:hover  { transform: scale(1.05); }
.biff-planet-toggle:active { transform: scale(0.95); }
.biff-planet-toggle:focus-visible { outline: 2px solid var(--biff-sun); outline-offset: 3px; }

.biff-planet-toggle-icon,
.biff-planet-toggle-close {
	display: flex;
	align-items: center;
	justify-content: center;
	transition: opacity 150ms ease, transform 200ms ease;
	line-height: 1;
}
.biff-planet-toggle-icon svg { display: block; }
.biff-planet-toggle-close {
	position: absolute;
	top: 50%; left: 50%;
	transform: translate(-50%, -50%) scale(0.6);
	opacity: 0;
	color: var(--biff-cream);
	font-size: 18px;
	font-weight: bold;
}
.biff-planet-toggle[aria-expanded="true"] .biff-planet-toggle-icon {
	opacity: 0;
	transform: scale(0.6);
}
.biff-planet-toggle[aria-expanded="true"] .biff-planet-toggle-close {
	opacity: 1;
	transform: translate(-50%, -50%) scale(1);
}

.biff-planet-menu {
	position: absolute;
	top: calc(100% + 14px);
	right: 0;
	width: min(260px, calc(100vw - 32px));
	background: rgba(7, 9, 38, 0.95);
	border: 2.5px solid var(--biff-ink);
	border-radius: 18px;
	box-shadow: 4px 4px 0 var(--biff-ink), 0 8px 32px rgba(0, 0, 0, 0.4);
	padding: 14px 12px;
	-webkit-backdrop-filter: blur(6px);
	backdrop-filter: blur(6px);
	opacity: 0;
	transform: translateY(-8px) scale(0.96);
	transform-origin: top right;
	pointer-events: none;
	transition: opacity 180ms ease, transform 180ms ease;
	z-index: 210;
}
.biff-planet-menu[aria-hidden="false"] {
	opacity: 1;
	transform: translateY(0) scale(1);
	pointer-events: auto;
}

.biff-planet-menu-hint {
	margin: 0 0 10px;
	padding: 0 6px;
	color: var(--biff-cream);
	font-family: var(--biff-font-handwriting, 'Caveat', cursive);
	font-size: 16px;
	opacity: 0.75;
	text-align: center;
}

.biff-planet-menu-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.biff-planet-menu-item {
	opacity: 0;
	transform: translateY(6px);
}
.biff-planet-menu[aria-hidden="false"] .biff-planet-menu-item {
	animation: biff-planet-menu-in 280ms ease forwards;
	animation-delay: calc(var(--i, 0) * 60ms + 80ms);
}
@keyframes biff-planet-menu-in {
	to { opacity: 1; transform: translateY(0); }
}

.biff-planet-menu-link {
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 8px 10px;
	border-radius: 12px;
	text-decoration: none;
	color: var(--biff-cream);
	font-family: var(--biff-font-display, 'Bagel Fat One', sans-serif);
	font-size: 15px;
	transition: background-color 150ms, transform 100ms;
}
a.biff-planet-menu-link:hover {
	background: rgba(255, 210, 63, 0.15);
	transform: translateX(2px);
}
a.biff-planet-menu-link:focus-visible {
	outline: 2px solid var(--biff-sun);
	outline-offset: 2px;
}

.biff-planet-menu-icon {
	width: 32px;
	height: 32px;
	flex-shrink: 0;
	display: block;
}

.biff-planet-menu-label {
	flex: 1;
	text-transform: lowercase;
}

.biff-planet-menu-here {
	font-family: var(--biff-font-handwriting, 'Caveat', cursive);
	font-size: 13px;
	color: var(--biff-sun);
	white-space: nowrap;
}

.biff-planet-menu-item.is-current .biff-planet-menu-link {
	cursor: default;
	opacity: 0.75;
}
.biff-planet-menu-item.is-current .biff-planet-menu-icon {
	filter: drop-shadow(0 0 6px var(--biff-sun));
}

@media (prefers-reduced-motion: reduce) {
	.biff-planet-menu,
	.biff-planet-toggle-icon,
	.biff-planet-toggle-close { transition: none; }
	.biff-planet-menu[aria-hidden="false"] .biff-planet-menu-item { animation: none; opacity: 1; transform: none; }
}

/* ── Page content area ── */
.biff-page-content {
	position: relative;
	z-index: 1;
	padding: 48px 24px 80px;
	max-width: 1200px;
	margin: 0 auto;
}

/* ── Page heading block ── */
.biff-page-heading {
	margin-bottom: 48px;
}

.biff-page-title {
	font-family: var(--biff-font-display);
	font-size: clamp(56px, 8vw, 120px);
	line-height: 0.9;
	color: var(--biff-sun);
	-webkit-text-stroke: 2px var(--biff-ink);
	text-shadow: 4px 4px 0 var(--biff-ink);
	display: inline-block;
	transform: rotate(-2deg);
	transform-origin: left center;
}

.biff-page-subtitle {
	font-family: var(--biff-font-accent);
	font-size: clamp(22px, 3vw, 38px);
	font-weight: 700;
	color: var(--biff-comet);
	transform: rotate(1deg);
	transform-origin: left center;
	display: inline-block;
	margin-top: 8px;
}

/* ── Contact page ── */
.biff-contact-wrap {
	max-width: 600px;
	margin: 0 auto;
}

.biff-contact-card {
	background: var(--biff-cream);
	padding: 36px 40px;
	border-radius: var(--biff-radius-lg);
	display: flex;
	flex-direction: column;
	gap: 20px;
	align-items: center;
	text-align: center;
}

.biff-contact-intro {
	font-family: var(--biff-font-body);
	font-size: 22px;
	color: var(--biff-ink);
	line-height: 1.65;
	width: 100%;
}

.biff-contact-intro p {
	margin-bottom: 12px;
}

.biff-contact-intro p:last-child {
	margin-bottom: 0;
}

.biff-contact-email {
	font-family: var(--biff-font-body);
	font-size: 26px;
	font-weight: 700;
	color: var(--biff-ink);
	background: var(--biff-sun);
	border: 2.5px solid var(--biff-ink);
	border-radius: var(--biff-radius-btn);
	padding: 10px 28px;
	box-shadow: var(--biff-shadow-btn);
	text-decoration: none;
	transition: transform 80ms, box-shadow 80ms;
	display: inline-block;
}

.biff-contact-email:hover {
	transform: translate(-2px, -2px);
	box-shadow: 7px 7px 0 var(--biff-ink);
}

.biff-contact-empty {
	font-family: var(--biff-font-body);
	font-size: 16px;
	color: rgba(22, 23, 43, 0.5);
}

.biff-contact-content {
	margin-top: 32px;
	font-family: var(--biff-font-accent);
	font-size: 20px;
	color: rgba(255, 246, 226, 0.85);
	line-height: 1.6;
}