/* ============================================
   VOLTA — Cinematic vitrine
   Direction A "Nuit Route" — fond noir + accent vert électrique + cuivre
   ============================================ */

:root {
  /* Brand */
  --brand-primary: #1C2B3A;
  --brand-secondary: #C8853A;
  --brand-accent: #E8E0D0;
  --neutral-dark: #0D1117;
  --neutral-mid: #2E3A47;
  --neutral-light: #F4F1EC;
  --text-primary: #FFFFFF;
  --text-secondary: #A8A49C;
  --electric-pulse: #4DFFB4;

  /* Typography */
  --ff-display: 'Sora', system-ui, sans-serif;
  --ff-body: 'Manrope', system-ui, sans-serif;
  --ff-mono: 'Space Grotesk', monospace;

  /* Layout */
  --max-w: 1280px;
  --pad: clamp(1.25rem, 3vw, 3rem);
  --pad-block: clamp(4rem, 10vw, 8rem);

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-cinematic: cubic-bezier(0.76, 0, 0.24, 1);
}

/* ============================================
   Reset
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
fieldset { border: 0; }

body {
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--neutral-dark);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Nav
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem var(--pad);
  background: linear-gradient(180deg, rgba(13,17,23,0.85) 0%, rgba(13,17,23,0) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.nav__wordmark {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.18em;
  color: var(--text-primary);
}

.nav__menu {
  display: flex;
  gap: 2rem;
}

.nav__menu a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 200ms ease;
}

.nav__menu a:hover {
  color: var(--electric-pulse);
}

@media (max-width: 640px) {
  .nav__menu { display: none; }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.75rem;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  border-radius: 4px;
  cursor: pointer;
  transition: all 250ms var(--ease-out);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--electric-pulse);
  color: var(--neutral-dark);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(77, 255, 180, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.3);
}
.btn--ghost:hover {
  border-color: var(--electric-pulse);
  color: var(--electric-pulse);
}

.btn--cta {
  background: var(--neutral-dark);
  color: var(--electric-pulse);
  border: 2px solid var(--electric-pulse);
  width: 100%;
  padding: 1.1rem 2rem;
  font-size: 1rem;
  position: relative;
}
.btn--cta::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 4px;
  background: var(--electric-pulse);
  opacity: 0;
  z-index: -1;
  transition: opacity 250ms ease;
}
.btn--cta:hover {
  background: var(--electric-pulse);
  color: var(--neutral-dark);
  transform: translateY(-2px);
  box-shadow: 0 0 0 8px rgba(77, 255, 180, 0.15);
}

/* ============================================
   Section commons
   ============================================ */
.eyebrow {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--brand-secondary);
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.section-header {
  max-width: 760px;
  margin: 0 auto 4rem;
}
.section-header--center { text-align: center; }

.section-title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-sub {
  margin-top: 1.25rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 56ch;
}
.section-header--center .section-sub { margin-left: auto; margin-right: auto; }

/* ============================================
   S1 — HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--neutral-dark);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0 var(--pad);
}

.hero__sky {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(77,255,180,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(200,133,58,0.05) 0%, transparent 60%),
    linear-gradient(180deg, #0D1117 0%, #1C2B3A 100%);
  z-index: 0;
}

.hero__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 15%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 60% 25%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 80% 10%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 30% 35%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 90% 30%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 10% 50%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 50% 8%, rgba(255,255,255,0.6), transparent);
  background-size: 100% 100%;
  z-index: 1;
  opacity: 0.7;
}

.hero__atlas {
  position: absolute;
  bottom: 35%;
  left: 0; right: 0;
  height: 25vh;
  z-index: 2;
  pointer-events: none;
}
.hero__atlas svg { width: 100%; height: 100%; }

.hero__medina {
  position: absolute;
  bottom: 22%;
  left: 0; right: 0;
  height: 12vh;
  z-index: 3;
  pointer-events: none;
  opacity: 0.85;
}
.hero__medina svg { width: 100%; height: 100%; }

.hero__route {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
}

.scooter {
  transform-origin: center center;
}

.hero__content {
  position: relative;
  z-index: 5;
  max-width: 800px;
}

.hero__brand-mark {
  margin-bottom: 1.75rem;
  opacity: 0;
  transform: translateY(20px);
}

.hero__title {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero__title .line {
  display: block;
  overflow: hidden;
}

.hero__title .line:nth-child(2) {
  color: var(--electric-pulse);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 50ch;
  margin-bottom: 2.5rem;
  opacity: 0;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.7;
}

/* ============================================
   S2 — MANIFESTE
   ============================================ */
.manifeste {
  position: relative;
  padding: var(--pad-block) var(--pad);
  background: var(--neutral-dark);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.manifeste::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 1px;
  background: var(--brand-secondary);
}

.manifeste__inner {
  max-width: 880px;
  margin: 0 auto;
}

.manifeste__eyebrow {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--brand-secondary);
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.manifeste__line {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 1.75rem;
}

.manifeste__line:last-child { margin-bottom: 0; }

.manifeste__line .hl {
  color: var(--electric-pulse);
  font-weight: 700;
}

/* ============================================
   S3 — GAMME
   ============================================ */
.gamme {
  position: relative;
  padding: var(--pad-block) var(--pad);
  background: linear-gradient(180deg, var(--neutral-dark) 0%, #131820 100%);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.gamme__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.card {
  position: relative;
  background: rgba(28, 43, 58, 0.4);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 350ms var(--ease-out),
              border-color 350ms ease,
              box-shadow 350ms ease;
  cursor: pointer;
}

.card:hover {
  transform: translateY(-6px) scale(1.01);
  border-color: var(--electric-pulse);
  box-shadow: 0 24px 60px rgba(77,255,180,0.12);
}

.card__visual {
  position: relative;
  aspect-ratio: 16/10;
  background: radial-gradient(ellipse at center, rgba(77,255,180,0.08) 0%, transparent 70%),
              linear-gradient(180deg, #1C2B3A 0%, #0D1117 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card:hover .card__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(77,255,180,0.15) 0%, transparent 70%);
  z-index: 0;
}

.card__scooter {
  position: relative;
  z-index: 1;
  width: 80%;
  max-width: 280px;
  filter: drop-shadow(0 12px 30px rgba(0,0,0,0.5));
  transition: transform 500ms var(--ease-out);
}

.card:hover .card__scooter {
  transform: scale(1.08) translateX(8px);
}

.card__body {
  padding: 2rem 1.75rem;
}

.card__name {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1.75rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card__sub {
  font-size: 0.95rem;
  color: var(--electric-pulse);
  font-weight: 500;
  margin-bottom: 1rem;
}

.card__tag {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.5rem;
  min-height: 3rem;
}

.card__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 1.5rem;
}

.card__specs li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.spec-num {
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: 1.65rem;
  color: var(--text-primary);
  line-height: 1;
}

.spec-unit {
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  color: var(--brand-secondary);
  margin-top: 0.15rem;
}

.spec-lbl {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.4rem;
}

.card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--electric-pulse);
  transition: gap 250ms ease;
}

.card__cta:hover {
  gap: 0.85rem;
}

/* ============================================
   S4 — PREUVE
   ============================================ */
.preuve {
  padding: var(--pad-block) var(--pad);
  background: var(--neutral-dark);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.preuve__inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.preuve__pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2.5rem;
  margin-bottom: 5rem;
}

.pillar {
  text-align: center;
}

.pillar__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(0 0 20px rgba(77,255,180,0.3));
}

.pillar__title {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
}

.pillar__body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 36ch;
  margin: 0 auto;
}

.preuve__stat {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.preuve__stat-num {
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 1;
  color: var(--electric-pulse);
  display: block;
  filter: drop-shadow(0 0 30px rgba(77,255,180,0.4));
}

.preuve__stat-unit {
  display: block;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
  color: var(--text-primary);
  margin-top: 1rem;
}

.preuve__stat-sub {
  display: block;
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 0.85rem;
}

/* ============================================
   S5 — SOCIAL PROOF
   ============================================ */
.proof {
  position: relative;
  padding: var(--pad-block) var(--pad);
  background: linear-gradient(180deg, var(--neutral-dark) 0%, #131820 100%);
  border-top: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
}

.proof__inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.proof__quotemark {
  position: absolute;
  top: -3rem;
  left: 0;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(10rem, 22vw, 18rem);
  color: var(--electric-pulse);
  opacity: 0.12;
  line-height: 0.8;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}

.proof__quote {
  position: relative;
  z-index: 1;
}

.proof__quote p {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.4;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 2rem;
}

.proof__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.proof__avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-secondary) 0%, var(--brand-primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.proof__author > div:last-child {
  text-align: left;
  display: flex;
  flex-direction: column;
}

.proof__author strong {
  font-family: var(--ff-display);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.proof__author span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.proof__counter {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-primary);
}

.proof__counter [data-counter] {
  font-family: var(--ff-mono);
  font-weight: 700;
  font-size: 1.4em;
  color: var(--electric-pulse);
  margin-right: 0.15em;
}

.proof__placeholder-note {
  margin-top: 1.25rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-style: italic;
  opacity: 0.6;
}

/* ============================================
   S6 — CTA
   ============================================ */
.cta {
  position: relative;
  padding: var(--pad-block) var(--pad);
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.cta__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--brand-secondary) 0%, #A06A28 100%);
  clip-path: circle(0% at 10% 90%);
  -webkit-clip-path: circle(0% at 10% 90%);
  transition: clip-path 1100ms var(--ease-cinematic),
              -webkit-clip-path 1100ms var(--ease-cinematic);
  z-index: 0;
}

.cta.is-active .cta__bg {
  clip-path: circle(150% at 10% 90%);
  -webkit-clip-path: circle(150% at 10% 90%);
}

.cta__inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.cta__title {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.cta__sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2.5rem;
}

.cta__form {
  text-align: left;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 540px) {
  .form__row { grid-template-columns: 1fr; }
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__field span {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}

.form__field input {
  padding: 0.95rem 1.1rem;
  background: rgba(13,17,23,0.5);
  border: 1.5px solid rgba(255,255,255,0.25);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 200ms ease, background 200ms ease;
  width: 100%;
}

.form__field input:focus {
  outline: none;
  border-color: var(--electric-pulse);
  background: rgba(13,17,23,0.75);
}

.form__usage {
  margin-bottom: 1.75rem;
}

.form__usage legend {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.6rem;
}

.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: rgba(13,17,23,0.4);
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  cursor: pointer;
  margin-right: 0.6rem;
  transition: all 200ms ease;
  font-size: 0.95rem;
}

.radio:has(input:checked) {
  border-color: var(--electric-pulse);
  background: rgba(77,255,180,0.15);
  color: var(--electric-pulse);
}

.radio input { accent-color: var(--electric-pulse); }

.form__reassurance {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  text-align: center;
}

.form__error,
.form__success {
  margin-top: 1rem;
  font-size: 0.9rem;
  text-align: center;
  padding: 0.85rem;
  border-radius: 4px;
}

.form__error {
  background: rgba(220, 60, 60, 0.2);
  border: 1px solid rgba(220, 60, 60, 0.4);
  color: #FFD2D2;
}

.form__success {
  background: rgba(77, 255, 180, 0.18);
  border: 1px solid var(--electric-pulse);
  color: var(--electric-pulse);
}

/* ============================================
   S7 — FOOTER
   ============================================ */
.footer {
  background: var(--neutral-dark);
  padding: 4rem var(--pad) 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: center;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.footer__wordmark {
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 0.18em;
  color: var(--text-primary);
}

.footer__tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-style: italic;
}

.footer__nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.footer__nav a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color 200ms ease;
}

.footer__nav a:hover { color: var(--electric-pulse); }

.footer__legal {
  font-size: 0.78rem;
  color: var(--text-secondary);
  opacity: 0.65;
  max-width: 60ch;
  margin: 0 auto;
  line-height: 1.6;
}

/* ============================================
   Reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .hero__brand-mark,
  .hero__subtitle,
  .hero__ctas {
    opacity: 1 !important;
    transform: none !important;
  }
  .cta__bg {
    clip-path: none;
    -webkit-clip-path: none;
  }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .hero__atlas { bottom: 30%; height: 18vh; }
  .hero__medina { bottom: 18%; height: 8vh; }
  .hero__title { font-size: clamp(2rem, 9vw, 3.5rem); }
  .gamme__grid { gap: 1.25rem; }
  .card__body { padding: 1.5rem 1.25rem; }
}