@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Space+Grotesk:wght@400;500;600&display=swap');

:root {
	--deep-marine: #07151c;
	--naval-blue: #12313b;
	--aquamarine: #27b8b0;
	--aquamarine-hover: #49cec7;
	--technical-white: #e9eff0;
	--silver-grey: #9aa8ad;
	--aluminium: #e7ecec;
	--brushed-silver: #b7c1c3;
	--warm-walnut: #6b4934;
	--technical-border: #29424a;
	--font-display: 'Space Grotesk', 'Arial Narrow', Arial, sans-serif;
	--font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
	--container: 88rem;
	--edge: clamp(1rem, 3vw, 2rem);
	--transition: 220ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
	min-width: 20rem;
	min-height: 100vh;
	font-family: var(--font-body);
	color: var(--technical-white);
	background: var(--deep-marine);
	line-height: 1.7;
}

button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
	position: fixed;
	top: 0.75rem;
	left: 0.75rem;
	z-index: 10000;
	padding: 0.65rem 1rem;
	color: var(--deep-marine);
	background: var(--aquamarine);
	font: 500 0.875rem/1 var(--font-display);
	text-decoration: none;
	transform: translateY(-200%);
	transition: transform var(--transition);
}
.skip-link:focus { transform: translateY(0); }

.site-header, .site-footer {
	position: fixed;
	left: 50%;
	z-index: 20;
	display: flex;
	width: min(calc(100% - (2 * var(--edge))), var(--container));
	transform: translateX(-50%);
}

.site-header {
	top: 0;
	height: 6rem;
	align-items: center;
	justify-content: space-between;
	border-bottom: 1px solid rgba(183, 193, 195, 0.25);
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 0.875rem;
	color: var(--technical-white);
	font: 600 1rem/1 var(--font-display);
	letter-spacing: 0.16em;
	text-decoration: none;
}

.brand-mark { display: grid; width: 2rem; height: 1.5rem; align-content: center; gap: 0.25rem; }
.brand-mark span { display: block; height: 1px; background: var(--aquamarine); }
.brand-mark span:nth-child(1) { width: 1.25rem; margin-left: 0.75rem; }
.brand-mark span:nth-child(2) { width: 2rem; }
.brand-mark span:nth-child(3) { width: 1.5rem; margin-left: 0.5rem; }

.header-status {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--silver-grey);
	font: 500 0.6875rem/1 var(--font-body);
	letter-spacing: 0.14em;
	text-transform: uppercase;
}
.header-status span { width: 0.375rem; height: 0.375rem; background: var(--aquamarine); border-radius: 50%; }

.hero {
	position: relative;
	display: grid;
	min-height: 100svh;
	overflow: hidden;
	isolation: isolate;
	align-items: center;
	padding: 8rem max(var(--edge), calc((100vw - var(--container)) / 2 + 2rem)) 9rem;
	background: var(--deep-marine);
}

.hero-backdrop, .cad-grid { position: absolute; inset: 0; z-index: -2; }
.hero-backdrop {
	background:
		linear-gradient(90deg, rgba(7, 21, 28, 0.98) 0%, rgba(7, 21, 28, 0.94) 28%, rgba(7, 21, 28, 0.45) 57%, rgba(7, 21, 28, 0.12) 100%),
		linear-gradient(0deg, rgba(7, 21, 28, 0.78) 0%, transparent 34%),
		url('images/tob-boats-hero-schiffsmodell.png') center center / cover no-repeat;
	transform: scale(1.015);
	animation: hero-settle 1800ms cubic-bezier(.22, .8, .25, 1) both;
}

.cad-grid {
	z-index: -1;
	top: 6rem;
	bottom: 5rem;
	left: var(--edge);
	right: var(--edge);
	background-image:
		linear-gradient(rgba(41, 66, 74, 0.22) 1px, transparent 1px),
		linear-gradient(90deg, rgba(41, 66, 74, 0.18) 1px, transparent 1px);
	background-size: 4rem 4rem;
	mask-image: linear-gradient(90deg, black, transparent 68%);
}

.hero-content { width: min(100%, 46rem); padding-top: 1rem; }
.technical-label {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 2rem;
	color: var(--silver-grey);
	font: 500 0.75rem/1 var(--font-body);
	letter-spacing: 0.14em;
	text-transform: uppercase;
}
.technical-label span { color: var(--aquamarine); }
.technical-label::after { width: min(10rem, 24vw); height: 1px; margin-left: 0.5rem; background: var(--technical-border); content: ''; }

h1 {
	max-width: 16ch;
	font: 500 clamp(2.5rem, 5.5vw, 4.75rem)/1.04 var(--font-display);
	letter-spacing: -0.045em;
	text-wrap: balance;
	text-transform: uppercase;
}
h1 em { color: var(--aquamarine); font-style: normal; }

.hero-copy {
	max-width: 39rem;
	margin: 2rem 0;
	color: var(--brushed-silver);
	font-size: clamp(1rem, 1.4vw, 1.125rem);
	line-height: 1.7;
}

.aqua { 
	color: var(--aquamarine);
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: 0.14em;
}


.primary-button {
	display: inline-flex;
	align-items: center;
	gap: 2rem;
	min-height: 3.25rem;
	padding: 0.875rem 1.5rem;
	border: 1px solid var(--aquamarine);
	border-radius: 2px;
	color: var(--deep-marine);
	background: var(--aquamarine);
	font: 500 0.875rem/1 var(--font-display);
	letter-spacing: 0.04em;
	text-decoration: none;
	text-transform: uppercase;
	transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.primary-button:hover { border-color: var(--aquamarine-hover); background: var(--aquamarine-hover); transform: translateY(-2px); }
.primary-button span { font-size: 1.25rem; line-height: 0; }

.specifications {
	position: absolute;
	right: max(var(--edge), calc((100vw - var(--container)) / 2 + 2rem));
	bottom: 6.25rem;
	display: grid;
	grid-template-columns: repeat(3, auto);
	border-top: 1px solid rgba(183, 193, 195, 0.35);
}
.specification { min-width: 9.5rem; padding: 1rem 1.25rem 0; border-left: 1px solid rgba(183, 193, 195, 0.25); }
.specification strong, .specification span { display: block; }
.specification strong { color: var(--aquamarine); font: 500 0.75rem/1 var(--font-display); }
.specification span { margin-top: 0.5rem; color: var(--brushed-silver); font: 500 0.6875rem/1.2 var(--font-body); letter-spacing: 0.11em; text-transform: uppercase; }

.site-footer {
	bottom: 0;
	height: 5rem;
	align-items: center;
	justify-content: space-between;
	border-top: 1px solid rgba(183, 193, 195, 0.25);
	color: var(--silver-grey);
	font-size: 0.6875rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}
.legal-nav { display: flex; align-items: center; gap: 1.5rem; }
.btn {
	padding: 0.5rem 0;
	border: 0;
	border-bottom: 1px solid transparent;
	color: var(--silver-grey);
	background: transparent;
	font: 500 0.6875rem/1 var(--font-body);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	cursor: pointer;
	transition: color var(--transition), border-color var(--transition);
}
.btn:hover { border-color: var(--aquamarine); color: var(--technical-white); }

.modal {
	position: fixed;
	inset: 0;
	z-index: 1000;
	display: grid;
	place-items: center;
	padding: var(--edge);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition), visibility var(--transition);
}
.modal[aria-hidden='false'] { opacity: 1; visibility: visible; }
.modal-overlay { position: absolute; inset: 0; background: rgba(3, 11, 15, 0.88); backdrop-filter: blur(8px); }
.modal-content {
	position: relative;
	width: min(100%, 48rem);
	max-height: min(82vh, 52rem);
	overflow-y: auto;
	padding: clamp(2rem, 5vw, 4rem);
	border: 1px solid var(--technical-border);
	border-radius: 2px;
	color: var(--technical-white);
	background: var(--naval-blue);
	box-shadow: none;
	transform: translateY(1rem);
	transition: transform var(--transition);
}
.modal[aria-hidden='false'] .modal-content { transform: translateY(0); }
.modal-close {
	position: absolute;
	top: 1rem;
	right: 1rem;
	display: grid;
	width: 2.75rem;
	height: 2.75rem;
	place-items: center;
	border: 1px solid var(--technical-border);
	border-radius: 2px;
	color: var(--brushed-silver);
	background: transparent;
	font: 400 1.5rem/1 var(--font-display);
	cursor: pointer;
	transition: border-color var(--transition), color var(--transition);
}
.modal-close:hover { border-color: var(--aquamarine); color: var(--aquamarine); }
.modal-content h2, .modal-body h3, .modal-body h4 { font-family: var(--font-display); font-weight: 500; }
.modal-content h2 { margin: 0 3rem 2rem 0; font-size: clamp(2rem, 5vw, 2.75rem); line-height: 1.1; }
.modal-body h3 { margin: 2rem 0 1rem; font-size: 1.5rem; }
.modal-body h3:first-child { margin-top: 0; }
.modal-body h4 { margin: 1.5rem 0 0.5rem; font-size: 1.125rem; }
.modal-body p, .modal-body li { margin-bottom: 1rem; color: var(--brushed-silver); font-size: 0.9375rem; line-height: 1.7; }
.modal-body ul { padding-left: 1.25rem; }
.modal-body a { color: var(--aquamarine); text-decoration: none; }
.modal-body a:hover { text-decoration: underline; }
.modal-content::-webkit-scrollbar { width: 0.5rem; }
.modal-content::-webkit-scrollbar-track { background: var(--deep-marine); }
.modal-content::-webkit-scrollbar-thumb { background: var(--technical-border); }

:focus-visible { outline: 2px solid var(--aquamarine); outline-offset: 4px; }

@keyframes hero-settle {
	from { opacity: 0.4; transform: scale(1.05); }
	to { opacity: 1; transform: scale(1.015); }
}

@media (max-width: 70rem) {
	.hero-backdrop {
		background:
			linear-gradient(90deg, rgba(7, 21, 28, 0.98) 0%, rgba(7, 21, 28, 0.89) 42%, rgba(7, 21, 28, 0.35) 100%),
			linear-gradient(0deg, rgba(7, 21, 28, 0.85) 0%, transparent 44%),
			url('images/tob-boats-hero-schiffsmodell.png') 58% center / cover no-repeat;
	}
	.specifications { right: var(--edge); }
}

@media (max-width: 48rem) {
	.site-header { height: 5rem; }
	/* .header-status { font-size: 0; gap: 0; } */
	.header-status span { width: 0.5rem; height: 0.5rem; }
	.hero { align-items: end; padding-top: 6.5rem; padding-bottom: 12.5rem; }
	.hero-backdrop {
		background:
			linear-gradient(0deg, rgba(7, 21, 28, 0.98) 0%, rgba(7, 21, 28, 0.8) 49%, rgba(7, 21, 28, 0.18) 100%),
			url('images/tob-boats-hero-schiffsmodell.png') 67% center / cover no-repeat;
	}
	.cad-grid { top: 5rem; background-size: 3rem 3rem; mask-image: linear-gradient(0deg, black, transparent 75%); }
	.hero-copy { margin: 1.5rem 0; }
	.specifications { left: var(--edge); right: var(--edge); bottom: 5.5rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
	.specification { min-width: 0; padding: 0.75rem 0.5rem 0; }
	.specification span { font-size: 0.5625rem; letter-spacing: 0.06em; }
	.site-footer { height: 4.5rem; }
}

@media (max-width: 25rem) {
	.brand { gap: 0.5rem; letter-spacing: 0.1em; }
	.brand-mark { width: 1.5rem; }
	.brand-mark span:nth-child(1) { width: 1rem; margin-left: 0.5rem; }
	.brand-mark span:nth-child(2) { width: 1.5rem; }
	.brand-mark span:nth-child(3) { width: 1.125rem; margin-left: 0.375rem; }
	.legal-nav { gap: 0.75rem; }
}

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