/*
  Palette billets Europa (approx. écran) :
  €50 orange → #ED8C2A
  €100 vert  → #008264
*/
:root {
  --eur50: #ed8c2a;
  --eur50-deep: #c46a14;
  --eur50-soft: #f6d4a8;
  --eur100: #008264;
  --eur100-deep: #005544;
  --eur100-mid: #009e78;
  --eur100-ink: #01382f;

  --hero: var(--eur100-deep);
  --hero-mid: var(--eur100);
  --hero-text: #f7f4ec;
  --hero-muted: #c5e4d8;
  --ink: #10241f;
  --ink-soft: #3a524b;
  --bg: #f4f1ea;
  --accent: var(--eur50);
  --font-display: "Fraunces", Georgia, serif;
  --font-sans: "Outfit", "Avenir Next", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--hero-text);
  background:
    radial-gradient(120% 80% at 82% 8%, rgba(237, 140, 42, 0.38), transparent 52%),
    radial-gradient(90% 70% at 8% 92%, rgba(0, 94, 72, 0.95), transparent 55%),
    linear-gradient(158deg, var(--eur100-ink) 0%, var(--eur100-deep) 40%, var(--eur100) 100%);
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.5;
  animation: drift 14s ease-in-out infinite alternate;
}

.glow-a {
  width: min(55vw, 420px);
  height: min(55vw, 420px);
  top: -8%;
  right: -6%;
  background: var(--eur50);
}

.glow-b {
  width: min(45vw, 340px);
  height: min(45vw, 340px);
  bottom: 12%;
  left: -10%;
  background: var(--eur100-mid);
  opacity: 0.35;
  animation-delay: -4s;
}

.paper-plane {
  position: absolute;
  right: 6%;
  top: 18%;
  width: min(42vw, 380px);
  height: min(54vw, 480px);
  background:
    linear-gradient(145deg, rgba(247, 244, 236, 0.16), rgba(237, 140, 42, 0.08)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 28px,
      rgba(247, 244, 236, 0.07) 28px,
      rgba(247, 244, 236, 0.07) 29px
    );
  border: 1px solid rgba(247, 244, 236, 0.2);
  transform: rotate(8deg) translateY(12px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  animation: float-paper 9s ease-in-out infinite alternate;
}

.paper-plane::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 18%;
  top: 22%;
  height: 2px;
  background: rgba(237, 140, 42, 0.75);
  box-shadow:
    0 36px 0 rgba(247, 244, 236, 0.16),
    0 72px 0 rgba(247, 244, 236, 0.12),
    0 108px 0 rgba(247, 244, 236, 0.1),
    0 144px 0 rgba(247, 244, 236, 0.08);
}

.paper-plane-b {
  right: auto;
  left: 4%;
  top: auto;
  bottom: 8%;
  width: min(34vw, 280px);
  height: min(42vw, 340px);
  transform: rotate(-11deg);
  opacity: 0.7;
  animation-delay: -3s;
  background:
    linear-gradient(145deg, rgba(0, 158, 120, 0.22), rgba(247, 244, 236, 0.05)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 28px,
      rgba(247, 244, 236, 0.06) 28px,
      rgba(247, 244, 236, 0.06) 29px
    );
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 14vh, 7rem) 0 clamp(2.75rem, 8vh, 4.5rem);
  animation: rise 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.brand {
  margin: 0 0 1.15rem;
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 11vw, 6.2rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 0.92;
  color: var(--hero-text);
}

h1 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4.6vw, 2.45rem);
  font-weight: 560;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.lede {
  margin: 1rem 0 0;
  max-width: 34ch;
  font-size: clamp(1.02rem, 2.4vw, 1.18rem);
  line-height: 1.45;
  color: var(--hero-muted);
  font-weight: 400;
}

.waitlist {
  margin-top: clamp(1.75rem, 5vh, 2.5rem);
  max-width: 34rem;
}

.waitlist-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: stretch;
}

.email-wrap {
  position: relative;
  flex: 1 1 14rem;
  min-width: 0;
}

.waitlist input {
  width: 100%;
  min-height: 3.15rem;
  border: 1px solid rgba(247, 244, 236, 0.28);
  background: rgba(1, 40, 34, 0.4);
  color: var(--hero-text);
  border-radius: 0.55rem;
  padding: 0.85rem 1rem;
  font: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 180ms ease, background 180ms ease;
}

.waitlist input::placeholder {
  color: rgba(197, 228, 216, 0.55);
}

.waitlist input:focus {
  border-color: var(--eur50);
  background: rgba(1, 40, 34, 0.58);
}

.waitlist input.is-invalid {
  border-color: #ff1f1f !important;
  background: #3a0c0c !important;
  color: transparent !important;
  caret-color: transparent;
}

.email-error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0 0.75rem;
  border-radius: 0.55rem;
  pointer-events: none;
  color: #ff1f1f;
  font-family: var(--font-sans);
  font-size: clamp(1.35rem, 4.5vw, 1.85rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  line-height: 1.1;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

.email-error[hidden] {
  display: none !important;
}

.waitlist button {
  flex: 0 0 auto;
  min-height: 3.15rem;
  border: 0;
  border-radius: 0.55rem;
  padding: 0.85rem 1.25rem;
  background: var(--eur50);
  color: #1a1208;
  font: inherit;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, opacity 160ms ease;
}

.waitlist button:hover {
  background: #f0a04a;
  transform: translateY(-1px);
}

.waitlist button:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

.waitlist-status {
  min-height: 1.35rem;
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  color: var(--hero-muted);
}

.waitlist-status.is-ok {
  color: var(--eur50-soft);
}

.waitlist-status.is-error {
  color: #ffc9b8;
}

.below {
  width: min(720px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: clamp(3rem, 9vh, 5rem) 0;
  background:
    linear-gradient(180deg, rgba(237, 140, 42, 0.06), transparent 40%),
    var(--bg);
}

.below h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.5vw, 1.9rem);
  font-weight: 560;
  letter-spacing: -0.02em;
  color: var(--eur100-deep);
  max-width: 18ch;
}

.below p {
  margin: 0.85rem 0 0;
  max-width: 40ch;
  color: var(--ink-soft);
  line-height: 1.5;
  font-size: 1.05rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-18px, 22px, 0) scale(1.08);
  }
}

@keyframes float-paper {
  from {
    transform: rotate(8deg) translateY(10px);
  }
  to {
    transform: rotate(6deg) translateY(-8px);
  }
}

@media (max-width: 640px) {
  .hero-content {
    align-self: end;
  }

  .waitlist button {
    width: 100%;
  }

  .paper-plane {
    opacity: 0.55;
  }

  .paper-plane-b {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-content,
  .glow,
  .paper-plane {
    animation: none !important;
  }
}