/* Design Tokens & Variables */
:root {
  --background: #f9f9f9;
  --surface: #f9f9f9;
  --surface-bright: #f9f9f9;
  --surface-dim: #dadada;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f3f3;
  --surface-container: #eeeeee;
  --surface-container-high: #e8e8e8;
  --surface-container-highest: #e2e2e2;
  --surface-variant: #e2e2e2;
  --surface-tint: #005bbe;
  --on-background: #1b1b1b;
  --on-surface: #1b1b1b;
  --on-surface-variant: #414754;
  --primary: #0059ba;
  --primary-container: #1271e5;
  --primary-fixed: #d7e2ff;
  --primary-fixed-dim: #acc7ff;
  --inverse-primary: #acc7ff;
  --on-primary: #ffffff;
  --on-primary-container: #fefcff;
  --on-primary-fixed: #001a40;
  --on-primary-fixed-variant: #004492;
  --secondary: #77592a;
  --secondary-container: #fdd399;
  --secondary-fixed: #ffddb1;
  --secondary-fixed-dim: #e8c088;
  --on-secondary: #ffffff;
  --on-secondary-container: #785a2b;
  --on-secondary-fixed: #291800;
  --on-secondary-fixed-variant: #5d4215;
  --tertiary: #8f473c;
  --tertiary-container: #ad5e52;
  --tertiary-fixed: #ffdad4;
  --tertiary-fixed-dim: #ffb4a8;
  --on-tertiary: #ffffff;
  --on-tertiary-container: #fffbff;
  --on-tertiary-fixed: #3c0704;
  --on-tertiary-fixed-variant: #753229;
  --outline: #727785;
  --outline-variant: #c1c6d6;
  --inverse-surface: #303030;
  --inverse-on-surface: #f1f1f1;
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;
  --on-error-container: #93000a;
  --custom-color: #2F80F4;
  --override-secondary: #F0C78E;
  --override-tertiary: #E98F81;
  --override-neutral: #000000;
  --radius-sm: 0.75rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --font-main: "Inter", sans-serif;
  --section-gap: var(--space-16);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--on-surface);
  background: var(--background);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Layout */
.container {
  width: min(100% - (var(--space-6) * 2), 80rem);
  margin-inline: auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--primary-fixed) 45%, var(--surface-container-lowest));
  border-bottom: 1px solid color-mix(in srgb, var(--primary) 18%, var(--outline-variant));
}

main,
footer {
  position: relative;
  z-index: 1;
}

/* Ambient Background */
.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.ambient-bg__blob {
  position: absolute;
  border-radius: 9999px;
  filter: blur(58px);
  opacity: 0.34;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  animation: floatDrift 16s ease-in-out infinite alternate;
}

.ambient-bg__blob--one {
  width: 38rem;
  height: 38rem;
  top: -12rem;
  right: -8rem;
  background: color-mix(in srgb, var(--primary-container) 72%, transparent);
  animation-duration: 18s;
}

.ambient-bg__blob--two {
  width: 30rem;
  height: 30rem;
  left: -10rem;
  top: 34%;
  background: color-mix(in srgb, var(--secondary-container) 74%, transparent);
  animation-duration: 22s;
  animation-delay: 1.5s;
}

.ambient-bg__blob--three {
  width: 32rem;
  height: 32rem;
  right: -6rem;
  bottom: -10rem;
  background: color-mix(in srgb, var(--primary-fixed-dim) 84%, transparent);
  animation-duration: 20s;
  animation-delay: 0.75s;
}

.ambient-bg__grain {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: radial-gradient(var(--on-surface) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
}

@keyframes floatDrift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(-3%, 4%, 0) scale(1.08);
  }
  100% {
    transform: translate3d(4%, -3%, 0) scale(0.96);
  }
}

/* Navigation */
.nav {
  min-height: 3.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--on-surface);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.05rem;
}

.brand__logo {
  width: 12.5rem;
}

.menu-toggle {
  appearance: none;
  border: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  border-radius: var(--radius-full);
  padding: 0;
  font: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid color-mix(in srgb, var(--outline-variant) 30%, transparent);
}

.menu-toggle__bars {
  display: inline-grid;
  gap: 0.26rem;
}

.menu-toggle__bars span {
  display: block;
  width: 1rem;
  height: 0.12rem;
  background: var(--on-surface);
  border-radius: var(--radius-full);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav-links {
  display: none;
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
}

.nav-links[data-open="true"] {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-2);
  position: absolute;
  left: var(--space-6);
  right: var(--space-6);
  top: calc(100% - var(--space-2));
}

.nav-links a {
  display: block;
  text-decoration: none;
  color: var(--on-surface-variant);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: background-color 180ms ease, color 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--surface-container-high);
  color: var(--on-surface);
  outline: none;
}

.nav-links a.nav-link--active {
  background: var(--surface-container-high);
  color: var(--primary);
  font-weight: 600;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 0;
  text-decoration: none;
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, color 180ms ease;
  cursor: pointer;
  font: inherit;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: var(--on-primary);
  box-shadow: 0 0 3rem color-mix(in srgb, var(--primary) 8%, transparent);
}

.button--secondary {
  background: var(--secondary-fixed);
  color: var(--on-secondary-fixed);
}

.button--neutral {
  background: var(--surface-container-low);
  color: var(--on-surface);
  border: 1px solid color-mix(in srgb, var(--outline-variant) 75%, transparent);
}

.button--neutral:hover,
.button--neutral:focus-visible {
  background: var(--surface-container-high);
  color: var(--on-surface);
  outline: none;
}

/* Typography */
h2 {
  margin: var(--space-3) 0 0;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.kicker {
  margin: 0;
  color: var(--primary);
  letter-spacing: 0.05rem;
  text-transform: uppercase;
  font-size: 0.8125rem;
  font-weight: 700;
}

main > section {
  padding-block: var(--section-gap);
}

/* Footer */
footer {
  background: color-mix(in srgb, var(--surface-container-low) 92%, transparent);
  padding-block: var(--space-8);
}

.footer__layout {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.footer__meta {
  margin: 0;
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
  font-weight: 300;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.footer__links a {
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 180ms ease;
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--primary);
  outline: none;
}

/* Modal System */
.modal-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: color-mix(in srgb, var(--on-surface) 58%, transparent);
  z-index: 120;
}

.modal-overlay[aria-hidden="false"] {
  display: flex;
}

.modal {
  width: min(100%, 42rem);
  max-height: calc(100dvh - (var(--space-8) * 2));
  overflow: auto;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--outline-variant) 65%, transparent);
  box-shadow: 0 1.75rem 4.5rem color-mix(in srgb, var(--on-surface) 18%, transparent);
  padding: var(--space-8);
}

.modal__header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.modal__title {
  margin: 0;
  line-height: 1.2;
  font-size: 1.1rem;
}

.modal__close {
  appearance: none;
  border: 1px solid color-mix(in srgb, var(--outline-variant) 70%, transparent);
  background: var(--surface-container-low);
  color: var(--on-surface);
  border-radius: var(--radius-full);
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  font-size: 1.125rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
}

.modal__close:hover,
.modal__close:focus-visible {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--outline-variant));
  color: var(--primary);
  outline: none;
}

.modal__content {
  font-size: 0.82rem;
  line-height: 1.45;
}

.modal__content p {
  margin: 0 0 var(--space-4);
}

.modal__content p:last-child {
  margin-bottom: 0;
}

.modal__content a {
  color: var(--primary);
}

/* Contact Form */
.contact-form {
  display: grid;
  gap: var(--space-4);
}

.contact-form__field {
  display: grid;
  gap: var(--space-2);
}

.contact-form label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--on-surface);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid color-mix(in srgb, var(--outline-variant) 70%, transparent);
  border-radius: var(--radius-md);
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  padding: var(--space-3) var(--space-4);
  font: inherit;
  appearance: none;
}

.contact-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231b1b1b' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

.contact-form input:focus-visible,
.contact-form textarea:focus-visible,
.contact-form select:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--primary) 45%, transparent);
  outline-offset: 1px;
  border-color: color-mix(in srgb, var(--primary) 45%, var(--outline-variant));
}

.contact-form textarea {
  min-height: 8rem;
  resize: vertical;
}

.contact-form__status {
  margin: 0;
  min-height: 1.5rem;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
}

.contact-form__status.success {
  color: #4caf50;
  font-weight: 600;
}

.contact-form__status.error {
  color: var(--error);
  font-weight: 600;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  left: var(--space-4);
  right: var(--space-4);
  bottom: var(--space-4);
  z-index: 140;
  background: var(--surface-container-lowest);
  border: 1px solid color-mix(in srgb, var(--outline-variant) 72%, transparent);
  border-radius: var(--radius-lg);
  box-shadow: 0 1.25rem 3rem color-mix(in srgb, var(--on-surface) 15%, transparent);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner__title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
}

.cookie-banner__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  max-width: 64ch;
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.cookie-settings {
  display: grid;
  gap: var(--space-5);
}

.cookie-settings__summary {
  margin: 0;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
}

.cookie-settings__row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-6);
  background: var(--surface-container-low);
  border-radius: var(--radius-md);
  border: 1px solid color-mix(in srgb, var(--outline-variant) 70%, transparent);
  padding: var(--space-4);
}

.cookie-settings__label {
  margin: 0;
  font-weight: 600;
  font-size: 0.95rem;
}

.cookie-settings__hint {
  margin: var(--space-1) 0 0;
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  max-width: 42ch;
}

.cookie-toggle {
  appearance: none;
  width: 2.8rem;
  height: 1.6rem;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--outline-variant) 70%, transparent);
  background: var(--surface-container-highest);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  margin: 0;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.cookie-toggle::after {
  content: "";
  position: absolute;
  top: 0.125rem;
  left: 0.15rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--surface-container-lowest);
  box-shadow: 0 0.25rem 0.5rem color-mix(in srgb, var(--on-surface) 15%, transparent);
  transition: transform 160ms ease;
}

.cookie-toggle:checked {
  background: color-mix(in srgb, var(--primary) 90%, var(--surface-container-highest));
  border-color: color-mix(in srgb, var(--primary) 60%, transparent);
}

.cookie-toggle:checked::after {
  transform: translateX(1.2rem);
}

.cookie-toggle:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--primary) 42%, transparent);
  outline-offset: 2px;
}

.cookie-settings__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: end;
}

/* Responsive Design */
@media (min-width: 48rem) {
  :root {
    --section-gap: var(--space-20);
  }

  .container {
    width: min(100% - (var(--space-8) * 2), 80rem);
  }

  .footer__layout {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .cookie-banner {
    left: var(--space-8);
    right: var(--space-8);
    bottom: var(--space-8);
  }

  .nav {
    position: relative;
  }

  .menu-toggle {
    display: none;
  }

  .nav-links {
    display: flex;
    align-items: center;
    width: auto;
    background: transparent;
    gap: var(--space-2);
  }

  .nav-links a {
    padding-inline: var(--space-4);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .ambient-bg__blob {
    animation: none;
  }
}