/* =========================================================
   SQF Website · aufgeräumt
   Struktur:
   1) Design Tokens
   2) Reset & Base
   3) Header & Navigation
   4) Slide Layout
   5) Typografie
   6) Animationen
   7) Media
   8) Responsive
   ========================================================= */

/* =========================================================
   1) Design Tokens
   ========================================================= */
:root {
  --color-bg-start: #3b4651;
  --color-bg-mid: #26313b;
  --color-bg-end: #141c24;
  --color-bg-base: #0b1117;

  --color-text-light: #ffffff;
  --color-text-dark: #5aa7dc;
  --color-text-muted: rgba(255, 255, 255, 0.68);
  --color-line-soft: rgba(255, 255, 255, 0.08);

  --font-family-base: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --header-height: 4.5rem;
  --container-width: min(1500px, calc(100vw - 3rem));
  --content-width: 37rem;
  --grid-gap: clamp(2.4rem, 7vw, 3rem);
  --section-padding-top: calc(var(--header-height) + 2rem);
  --section-padding-bottom: clamp(2.5rem, 6vh, 4rem);

  --h2-size: clamp(1.5rem, 1vw, 3rem);
  --h2-line-height: 1.15;
  --copy-size: clamp(1.05rem, 1.35vw, 1.48rem);
  --copy-size-plus: clamp(1.25rem, 1.55vw, 1.68rem);
  --copy-line-height: 1.48;
  --formula-size: clamp(3rem, 8vw, 7rem);

  --motion-duration-fast: 820ms;
  --motion-duration-main: 1050ms;
  --motion-ease-overshoot: cubic-bezier(0.2, 0.9, 0.15, 1.18);
}

/* =========================================================
   2) Reset & Base
   ========================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-family-base);
  color: var(--color-text-light);
  line-height: 1.4;
  background: var(--color-bg-base);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.05) 0%, transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, rgba(0, 0, 0, 0.16) 100%);
  mix-blend-mode: screen;
}

main,
header,
section,
nav {
  position: relative;
  z-index: 1;
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
}

strong {
  font-weight: 700;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: #10202d;
  background: var(--color-text-dark);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* =========================================================
   3) Header & Navigation
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-height);
  padding: 0.95rem max(1rem, calc((100vw - var(--container-width)) / 2));
  border-bottom: 1px solid var(--color-line-soft);
  background: rgba(14, 20, 27, 0.44);
  backdrop-filter: blur(16px);
}

.site-header__brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  width: 860px;
}

.site-header__logo {
  width: auto;
  height: 3rem;
  margin: 0.5rem;
  flex: 0 0 auto;
}

.site-header__subline {
  font-size: 1.5rem;
  color: var(--color-text-light);
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
}

.site-header__nav::-webkit-scrollbar {
  display: none;
}

.site-header__nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  margin: 0;
  border-radius: 0;
  text-decoration: none;
  transition:
    background-color 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease;
}

.site-header__nav a:hover {
  color: var(--color-text-dark);
  transform: translateY(-1px);
}

.site-header__nav a.is-active {
  background: var(--color-bg-start);
  color: var(--color-text-light);
  transform: scale(1.08);
  border: 1px solid var(--color-text-dark);
}

.site-header__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 200px;
  margin-left: auto;
}

.site-header__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0 1rem;
  border: 1px solid rgba(90, 167, 220, 0.45);
  border-radius: 999px;
  background: rgba(90, 167, 220, 0.12);
  color: var(--color-text-light);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.site-header__button:hover,
.site-header__button:focus-visible {
  background: rgba(90, 167, 220, 0.2);
  border-color: rgba(90, 167, 220, 0.8);
  transform: translateY(-1px);
}

/* =========================================================
   4) Slide Layout
   ========================================================= */
.slide {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: stretch;
  padding: var(--section-padding-top) 1.5rem var(--section-padding-bottom);
  scroll-snap-align: start;
  overflow: clip;
  background:
    radial-gradient(circle at 12% 10%, rgba(90, 167, 220, 0.14) 0%, transparent 24%),
    radial-gradient(circle at 84% 18%, rgba(90, 167, 220, 0.06) 0%, transparent 20%),
    radial-gradient(circle at 50% 115%, rgba(90, 167, 220, 0.05) 0%, transparent 28%),
    linear-gradient(
      180deg,
      var(--color-bg-start) 0%,
      var(--color-bg-mid) 52%,
      var(--color-bg-end) 82%,
      var(--color-bg-base) 100%
    );
}

.slide::before,
.slide::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.slide::before {
  width: 28rem;
  height: 28rem;
  left: -12rem;
  bottom: -12rem;
  background: radial-gradient(circle, rgba(90, 167, 220, 0.18) 0%, rgba(90, 167, 220, 0) 72%);
}

.slide::after {
  width: 20rem;
  height: 20rem;
  right: -8rem;
  top: 8rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
}

.slide__inner {
  position: relative;
  z-index: 1;
  width: var(--container-width);
  min-height: calc(100svh - var(--header-height) - 2rem);
  margin: 1rem auto;
  display: grid;
  grid-template-rows: auto 1fr;
}

.slide__content {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.slide__header {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: clamp(2rem, 5vh, 4rem);
}

.slide__number {
  flex: 0 0 auto;
  font-size: 1rem;
  letter-spacing: 0;
}

.slide__layout {
  width: 100%;
}

.slide__layout--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--grid-gap);
  align-items: start;
}

.slide__layout--center {
  width: min(70rem, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.pane {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 1rem;
}

.pane--left {
  align-items: flex-end;
  text-align: right;
}

.pane--right {
  align-items: flex-start;
  text-align: left;
}

.slide--closing .slide__layout--center {
  gap: 1.2rem;
}

/* =========================================================
   5) Typografie
   ========================================================= */
h2 {
  margin: 0;
  max-width: 45ch;
  font-size: var(--h2-size);
  line-height: var(--h2-line-height);
  font-weight: 600;
  letter-spacing: 0;
  text-wrap: balance;
  color: var(--color-text-light);
}

.copy,
.formula {
  margin: 0;
  max-width: var(--content-width);
  text-wrap: pretty;
}

.copy {
  font-size: var(--copy-size);
  line-height: var(--copy-line-height);
}

.copy--left {
  color: var(--color-text-light);
}

.copy--right {
  color: var(--color-text-dark);
}

.copy--right--extra,
.copy--right--extra strong {
  color: var(--color-text-light);
}

.copy--right--big {
  font-size: var(--copy-size-plus);
  font-weight: 800;
  color: var(--color-text-dark);
}

.copy--center {
  max-width: 60rem;
  color: var(--color-text-light);
  text-align: center;
}

.copy--impact {
  font-size: clamp(1.25rem, 1.8vw, 2rem);
  line-height: 1.32;
}

.formula {
  max-width: none;
  font-size: var(--formula-size);
  line-height: 0.94;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  text-shadow:
    0 0 22px rgba(90, 167, 220, 0.18),
    0 0 48px rgba(90, 167, 220, 0.12);
}

.formula--closing {
  font-size: clamp(3.3rem, 10vw, 8rem);
}

.color-dark {
  color: var(--color-text-dark);
}

.color-light {
  color: var(--color-text-light);
}

.transparency50 {
  opacity: 0.2;
}

.space-5 {
  margin-right: 5px;
}

.below-spacer-large {
  margin-bottom: 2rem;
}

.div-center {
  text-align: -webkit-center;
}

/* Hero */
.slide__layout--hero-single {
  width: 100%;
  margin: 0 auto;
}

.hero-lockup {
  width: min(52rem, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}

.hero-logo {
  width: clamp(8rem, 25vw, 30rem);
}

.hero-title {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 4.4rem);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text-light);
  text-wrap: balance;
}

.hero-subline {
  margin: 0;
  font-size: clamp(1.05rem, 1.7vw, 1.7rem);
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-text-dark);
  text-wrap: balance;
}

.formula-logo {
  display: inline-block;
  width: auto;
  height: 1.5em;
  margin: 0.2em 0 0 0.2em;
  vertical-align: -0.5em;
}

/* Scroll Hint */
.scroll-hint {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  animation: scroll-hint-fade-in 0.8s ease 1s both;
}

.scroll-hint__text {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: scroll-hint-bob 1.9s ease-in-out infinite;
}

.scroll-hint:focus-visible .scroll-hint__text,
.scroll-hint:hover .scroll-hint__text {
  border-color: rgba(90, 167, 220, 0.55);
  background: rgba(255, 255, 255, 0.1);
}

/* =========================================================
   6) Animationen
   ========================================================= */
[data-motion] {
  opacity: 0;
  filter: blur(12px);
  will-change: transform, opacity, filter;
  transition:
    transform var(--motion-duration-main) var(--motion-ease-overshoot),
    opacity var(--motion-duration-fast) ease,
    filter var(--motion-duration-main) ease;
  transition-delay: var(--stagger, 0ms);
}

[data-motion="left"] {
  transform: translate3d(-4.5rem, 0, 0) scale(0.96) rotate(-1.2deg);
}

[data-motion="right"] {
  transform: translate3d(4.5rem, 0, 0) scale(0.96) rotate(1.2deg);
}

[data-motion="center"] {
  transform: translate3d(0, 3rem, 0) scale(0.94);
}

.is-visible [data-motion] {
  opacity: 1;
  filter: blur(0);
}

.is-visible [data-motion="left"],
.is-visible [data-motion="right"],
.is-visible [data-motion="center"] {
  transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
}

@keyframes scroll-hint-fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scroll-hint-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  [data-motion] {
    opacity: 1;
    filter: none;
    transform: none;
    transition: none;
  }

  .scroll-hint,
  .scroll-hint__text {
    animation: none;
  }
}

/* =========================================================
   7) Media
   ========================================================= */
.agents-graphic {
  display: block;
  width: min(66%, 48rem);
  height: auto;
}

.explain-video {
  display: block;
  width: min(100%, 70rem);
  height: auto;
  border-radius: 1rem;
}

/* =========================================================
   8) Responsive
   ========================================================= */
@media (max-width: 1120px) {
  .site-header__subline {
    font-size: 1.1rem;
  }
}

@media (max-width: 1024px) {
  .site-header__subline,
  .site-header__nav {
    display: none;
  }
}

@media (max-width: 980px) {
  :root {
    --section-padding-top: 1.5rem;
    --section-padding-bottom: 2.5rem;
  }

  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  body {
    overflow-x: hidden;
    overflow-y: auto;
  }

  body::before {
    display: none;
  }

  .site-header {
    position: sticky;
    top: 0;
    min-height: auto;
    padding: 0.75rem 1rem;
    background: rgba(14, 20, 27, 0.92);
    backdrop-filter: none;
    border-bottom: 1px solid var(--color-line-soft);
  }

  .site-header__nav,
  .scroll-hint {
    display: none;
  }

  .site-header__subline {
    display: none;
  }

  .site-header__actions {
    margin-left: auto;
  }

  .site-header__button {
    min-height: 2.25rem;
    padding: 0 0.9rem;
    font-size: 0.8rem;
  }

  .slide {
    min-height: auto;
    align-items: stretch;
    overflow: visible;
    padding: var(--section-padding-top) 1rem var(--section-padding-bottom);
    scroll-snap-align: none;
  }

  .slide::before,
  .slide::after {
    display: none;
  }

  .slide__inner {
    width: min(100%, 56rem);
    min-height: auto;
    margin: 0 auto;
    display: block;
  }

  .slide__content {
    min-height: auto;
    justify-content: flex-start;
  }

  .slide__header {
    margin-bottom: 1.5rem;
  }

  .slide__layout--split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pane--left {
    align-items: flex-start;
    text-align: left;
  }

  .pane--right {
    align-items: flex-end;
    text-align: right;
  }

  .copy--right,
  .copy--right--extra,
  .copy--right--big {
    text-align: right;
  }

  /* Mobile-Animationen aktiv und neu triggerbar */
  [data-motion] {
    opacity: 0;
    filter: blur(10px);
    will-change: transform, opacity, filter;
    transition:
      transform var(--motion-duration-main) var(--motion-ease-overshoot),
      opacity var(--motion-duration-fast) ease,
      filter var(--motion-duration-main) ease;
    transition-delay: var(--stagger, 0ms);
  }

  [data-motion="left"] {
    transform: translate3d(-3rem, 0, 0) scale(0.97);
  }

  [data-motion="right"] {
    transform: translate3d(3rem, 0, 0) scale(0.97);
  }

  [data-motion="center"] {
    transform: translate3d(0, 2.25rem, 0) scale(0.96);
  }

  .is-visible [data-motion] {
    opacity: 1;
    filter: blur(0);
  }

  .is-visible [data-motion="left"],
  .is-visible [data-motion="right"],
  .is-visible [data-motion="center"] {
    transform: translate3d(0, 0, 0) scale(1);
  }

  .hero-logo {
    width: clamp(7rem, 30vw, 10rem);
  }

  .hero-title {
    font-size: clamp(1.9rem, 6vw, 3rem);
  }

  .hero-subline {
    font-size: clamp(1rem, 3.2vw, 1.25rem);
  }

  .agents-graphic {
    display: block;
    width: min(90%, 100%);
    height: auto;
  }

  .explain-video {
    width: 100%;
    max-width: 100%;
    border-radius: 0.75rem;
  }

  #sqf-agenten .slide__layout--split {
    justify-items: center;
  }

  #sqf-agenten .pane--left,
  #sqf-agenten .pane--right {
    align-items: center;
    text-align: center;
  }

  #sqf-agenten .pane--left {
    gap: 0.75rem;
  }

  #sqf-agenten .copy--left,
  #sqf-agenten .copy--right,
  #sqf-agenten .copy--right--extra,
  #sqf-agenten .copy--right--big {
    text-align: center;
  }

  #sqf-agenten .agents-graphic {
    margin: 0 auto;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: auto;
    --container-width: min(100vw - 1.25rem, 1500px);
    --copy-size: clamp(1rem, 4.2vw, 1.2rem);
    --copy-size-plus: clamp(1.15rem, 4.6vw, 1.4rem);
    --h2-size: clamp(1.1rem, 5vw, 1.4rem);
    --formula-size: clamp(1.5rem, 11vw, 4rem);
  }

  .site-header {
    padding-inline: 0.75rem;
  }

  .site-header__logo {
    height: 2.25rem;
    margin: 0;
  }

  .hero-lockup {
    gap: 0.75rem;
  }

  .hero-title {
    font-size: clamp(1.7rem, 8vw, 2.6rem);
  }

  .hero-subline {
    font-size: clamp(1rem, 4.8vw, 1.2rem);
  }

  .formula--closing {
    font-size: 2.4rem;
  }
}