@import 'tailwindcss';
@import 'tw-animate-css';
@import "shadcn/tailwind.css";
@import "@fontsource-variable/nunito-sans";
@import "@fontsource-variable/public-sans";

@font-face {
  font-family: Vend Sans;
  src: url('/fonts/VendSans-VariableFont_wght.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@plugin '@tailwindcss/typography';

@custom-variant dark (&:is(.dark *));

:root {
  --sea-ink: #173a40;
  --sea-ink-soft: #416166;
  --lagoon: #4fb8b2;
  --lagoon-deep: #328f97;
  --palm: #2f6a4a;
  --sand: #e7f0e8;
  --foam: #f3faf5;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --line: rgba(23, 58, 64, 0.14);
  --inset-glint: rgba(255, 255, 255, 0.82);
  --kicker: rgba(47, 106, 74, 0.9);
  --bg-base: #e7f3ec;
  --header-bg: rgba(251, 255, 248, 0.84);
  --chip-bg: rgba(255, 255, 255, 0.8);
  --chip-line: rgba(47, 106, 74, 0.18);
  --link-bg-hover: rgba(255, 255, 255, 0.9);
  --hero-a: rgba(79, 184, 178, 0.36);
  --hero-b: rgba(47, 106, 74, 0.2);

  --background: oklch(1 0 0);
  --foreground: oklch(0.141 0.005 285.823);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.141 0.005 285.823);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.141 0.005 285.823);
  --primary: oklch(0.508 0.118 165.612);
  --primary-foreground: oklch(0.979 0.021 166.113);
  --secondary: oklch(0.967 0.001 286.375);
  --secondary-foreground: oklch(0.21 0.006 285.885);
  --muted: oklch(0.967 0.001 286.375);
  --muted-foreground: oklch(0.552 0.016 285.938);
  --accent: oklch(0.967 0.001 286.375);
  --accent-foreground: oklch(0.21 0.006 285.885);
  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.577 0.245 27.325);
  --border: oklch(0.92 0.004 286.32);
  --input: oklch(0.92 0.004 286.32);
  --ring: oklch(0.705 0.015 286.067);
  --chart-1: oklch(0.845 0.143 164.978);
  --chart-2: oklch(0.696 0.17 162.48);
  --chart-3: oklch(0.596 0.145 163.225);
  --chart-4: oklch(0.508 0.118 165.612);
  --chart-5: oklch(0.432 0.095 166.913);
  --radius: 0.625rem;
  --sidebar: oklch(0.985 0 0);
  --sidebar-foreground: oklch(0.141 0.005 285.823);
  --sidebar-primary: oklch(0.596 0.145 163.225);
  --sidebar-primary-foreground: oklch(0.979 0.021 166.113);
  --sidebar-accent: oklch(0.967 0.001 286.375);
  --sidebar-accent-foreground: oklch(0.21 0.006 285.885);
  --sidebar-border: oklch(0.92 0.004 286.32);
  --sidebar-ring: oklch(0.705 0.015 286.067);
}

.dark {
  --sea-ink: #d7ece8;
  --sea-ink-soft: #afcdc8;
  --lagoon: #60d7cf;
  --lagoon-deep: #8de5db;
  --palm: #6ec89a;
  --sand: #0f1a1e;
  --foam: #101d22;
  --surface: rgba(16, 30, 34, 0.8);
  --surface-strong: rgba(15, 27, 31, 0.92);
  --line: rgba(141, 229, 219, 0.18);
  --inset-glint: rgba(194, 247, 238, 0.14);
  --kicker: #b8efe5;
  --bg-base: #0a1418;
  --header-bg: rgba(10, 20, 24, 0.8);
  --chip-bg: rgba(13, 28, 32, 0.9);
  --chip-line: rgba(141, 229, 219, 0.24);
  --link-bg-hover: rgba(24, 44, 49, 0.8);
  --hero-a: rgba(96, 215, 207, 0.18);
  --hero-b: rgba(110, 200, 154, 0.12);

  --background: oklch(0.141 0.005 285.823);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.21 0.006 285.885);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.21 0.006 285.885);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.432 0.095 166.913);
  --primary-foreground: oklch(0.979 0.021 166.113);
  --secondary: oklch(0.274 0.006 286.033);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.274 0.006 286.033);
  --muted-foreground: oklch(0.705 0.015 286.067);
  --accent: oklch(0.274 0.006 286.033);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --destructive-foreground: oklch(0.637 0.237 25.331);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.552 0.016 285.938);
  --chart-1: oklch(0.845 0.143 164.978);
  --chart-2: oklch(0.696 0.17 162.48);
  --chart-3: oklch(0.596 0.145 163.225);
  --chart-4: oklch(0.508 0.118 165.612);
  --chart-5: oklch(0.432 0.095 166.913);
  --sidebar: oklch(0.21 0.006 285.885);
  --sidebar-foreground: oklch(0.985 0 0);
  --sidebar-primary: oklch(0.696 0.17 162.48);
  --sidebar-primary-foreground: oklch(0.262 0.051 172.552);
  --sidebar-accent: oklch(0.274 0.006 286.033);
  --sidebar-accent-foreground: oklch(0.985 0 0);
  --sidebar-border: oklch(1 0 0 / 10%);
  --sidebar-ring: oklch(0.552 0.016 285.938);
}

@theme inline {
  --font-sans: 'Vend Sans', sans-serif;
  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-card: var(--card);
  --color-card-foreground: var(--card-foreground);
  --color-popover: var(--popover);
  --color-popover-foreground: var(--popover-foreground);
  --color-primary: var(--primary);
  --color-primary-foreground: var(--primary-foreground);
  --color-secondary: var(--secondary);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-muted: var(--muted);
  --color-muted-foreground: var(--muted-foreground);
  --color-accent: var(--accent);
  --color-accent-foreground: var(--accent-foreground);
  --color-destructive: var(--destructive);
  --color-destructive-foreground: var(--destructive-foreground);
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);
  --color-chart-1: var(--chart-1);
  --color-chart-2: var(--chart-2);
  --color-chart-3: var(--chart-3);
  --color-chart-4: var(--chart-4);
  --color-chart-5: var(--chart-5);
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --color-sidebar: var(--sidebar);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-ring: var(--sidebar-ring);
  --font-heading: 'Public Sans Variable', sans-serif;
  --radius-2xl: calc(var(--radius) * 1.8);
  --radius-3xl: calc(var(--radius) * 2.2);
  --radius-4xl: calc(var(--radius) * 2.6);
}

html,
body,
#app {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--sea-ink);
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  background:
    radial-gradient(1100px 620px at -8% -10%, var(--hero-a), transparent 58%),
    radial-gradient(1050px 620px at 112% -12%, var(--hero-b), transparent 62%),
    radial-gradient(720px 380px at 50% 115%, rgba(79, 184, 178, 0.1), transparent 68%),
    linear-gradient(180deg, color-mix(in oklab, var(--sand) 68%, white) 0%, var(--foam) 44%, var(--bg-base) 100%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.28;
  background:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.8), transparent 34%),
    radial-gradient(circle at 78% 26%, rgba(79, 184, 178, 0.2), transparent 42%),
    radial-gradient(circle at 42% 82%, rgba(47, 106, 74, 0.14), transparent 36%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.14;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 78%);
}

@layer base {
  a {
    color: var(--lagoon-deep);
    text-decoration-color: rgba(50, 143, 151, 0.4);
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
  }

  a:hover {
    color: #246f76;
  }
}

code {
  font-size: 0.9em;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface-strong) 82%, white 18%);
  border-radius: 7px;
  padding: 2px 7px;
}

pre code {
  border: 0;
  background: transparent;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: inherit;
}

.prose pre {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #1d2e45;
  color: #e8efff;
}

.page-wrap {
  width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
}

.display-title {
  font-family: 'Fraunces', Georgia, serif;
}

.island-shell {
  border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--surface-strong), var(--surface));
  box-shadow:
    0 1px 0 var(--inset-glint) inset,
    0 22px 44px rgba(30, 90, 72, 0.1),
    0 6px 18px rgba(23, 58, 64, 0.08);
  backdrop-filter: blur(4px);
}

.feature-card {
  background: linear-gradient(165deg, color-mix(in oklab, var(--surface-strong) 93%, white 7%), var(--surface));
  box-shadow:
    0 1px 0 var(--inset-glint) inset,
    0 18px 34px rgba(30, 90, 72, 0.1),
    0 4px 14px rgba(23, 58, 64, 0.06);
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--lagoon-deep) 35%, var(--line));
}

button,
.island-shell,
a {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease,
    transform 180ms ease;
}

.island-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.69rem;
  color: var(--kicker);
}

.nav-link {
  position: relative;
  text-decoration: none;
  color: var(--sea-ink-soft);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--lagoon), #7ed3bf);
  transition: transform 170ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--sea-ink);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link:focus-visible {
  outline: 2px solid var(--lagoon-deep);
  outline-offset: 4px;
  border-radius: 6px;
  color: var(--sea-ink);
}

.rise-in {
  animation: rise-in 700ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-image-in {
  animation: hero-image-in 900ms cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 200ms;
}

@keyframes hero-image-in {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .rise-in,
  .hero-image-in {
    animation-duration: 0.01ms;
    animation-delay: 0ms;
  }
}

.site-footer {
  border-top: 1px solid var(--line);
  background: color-mix(in oklab, var(--header-bg) 84%, transparent 16%);
}

/* Accent-Variante: farbstarker Call-to-Action-Button. */
button[data-type='accent'],
a[data-type='accent'] {
  background: linear-gradient(135deg, var(--lagoon), var(--palm));
  color: white;
  border-color: transparent;
  box-shadow:
    0 1px 0 var(--inset-glint) inset,
    0 12px 24px rgba(30, 90, 72, 0.22);
}

button[data-type='accent']:hover,
a[data-type='accent']:hover {
  background: linear-gradient(135deg, var(--lagoon-deep), var(--palm));
  color: white;
}

/* Bilder sollen ihr Alignment behalten, ohne die Layoutbreite zu sprengen. */
img {
  max-width: 100%;
  height: auto;
}

@layer base {
  * {
    @apply border-border outline-ring/50;
  }
  body {
    background-color: var(--background);
    color: var(--foreground);
    @apply bg-background text-foreground;
  }
  html {
    @apply font-sans;
  }
}

/* Theme Toggle */
.theme-toggle {
  display: none;
}
.theme-toggle__label {
  /* Groesse ueber diese zwei Variablen steuern -- alles andere wird berechnet.
     Overriden per Style-Attribut, Elternklasse, oder Utility (--tta-size: ...). */
  --tta-size: 2em; /* Hoehe des Switches — ggf. an euren size(10)-Wert anpassen */
  --tta-ratio: 2; /* Breite = Hoehe × Ratio (2 = Pill 2:1) */

  /* Abgeleitete Werte -- nicht ueberschreiben. */
  --tta-width: calc(var(--tta-size) * var(--tta-ratio));
  --tta-pad: calc(var(--tta-size) * 0.1);
  --tta-knob: calc(var(--tta-size) - var(--tta-pad) * 2);
  --tta-icon: calc(var(--tta-size) * 0.6);
  --tta-travel: calc(var(--tta-width) - var(--tta-knob) - var(--tta-pad) * 2);

  width: var(--tta-width);
  height: var(--tta-size);
  position: relative;
  display: block;
  background: white;
  border-radius: var(--tta-size);
  box-shadow: inset 0 5px 15px rgba(0, 0, 0, 0.4),
  inset 0 -5px 15px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.theme-toggle__label::after {
  content: '';
  width: var(--tta-knob);
  height: var(--tta-knob);
  position: absolute;
  top: var(--tta-pad);
  left: var(--tta-pad);
  background: linear-gradient(180deg, #ffcc89, #d8860b);
  border-radius: var(--tta-knob);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.theme-toggle__label svg {
  position: absolute;
  width: var(--tta-icon);
  top: calc((var(--tta-size) - var(--tta-icon)) / 2);
  z-index: 1;
}

/* Icon-Positionierung symmetrisch: mittig im jeweiligen "Knubbel-Slot". */
.theme-toggle__sun {
  left: calc(var(--tta-pad) + (var(--tta-knob) - var(--tta-icon)) / 2);
  fill: gold;
  transition: fill 0.3s ease;
}

.theme-toggle__moon {
  right: calc(var(--tta-pad) + (var(--tta-knob) - var(--tta-icon)) / 2);
  fill: dimgray;
  transition: fill 0.3s ease;
}

.theme-toggle:checked + .theme-toggle__label {
  background: #242424;
}

.theme-toggle:checked + .theme-toggle__label::after {
  transform: translateX(var(--tta-travel));
  background: linear-gradient(180deg, #777, #3a3a3a);
}

.theme-toggle:checked + .theme-toggle__label .theme-toggle__sun {
  fill: dimgray;
}

.theme-toggle:checked + .theme-toggle__label .theme-toggle__moon {
  fill: deepskyblue;
}