/* Flowset — site statique (palette app) */
:root {
  --bg: #0f1215;
  --surface: #15181c;
  --border: #2a2f34;
  --primary: #2a8b85;
  --primary-hover: #236f6a;
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.7);
  --text-soft: rgba(255, 255, 255, 0.45);
  --radius: 10px;
  --radius-lg: 12px;
  --radius-phone: 2rem;
  --container: 72rem;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-10: 5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.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;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: rgba(15, 18, 21, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.2s, background 0.2s;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  border-color: var(--border);
  background: rgba(15, 18, 21, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 4rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
}

.brand span {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-4);
  font-size: 14px;
}

.nav-desktop a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.15s;
}

.nav-desktop a:hover {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  padding: 0.5rem 1rem;
  font-size: 14px;
}

.btn--primary:hover {
  background: var(--primary-hover);
}

.btn--primary-lg {
  padding: 0.75rem 1.5rem;
  font-size: 16px;
}

.btn--nav {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
  .btn--nav {
    display: inline-flex;
  }
}

#nav-icon-close {
  display: none;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--border);
  background: rgba(15, 18, 21, 0.95);
  backdrop-filter: blur(12px);
  padding-bottom: var(--space-2);
}

.mobile-nav.is-open {
  display: block;
}

@media (min-width: 768px) {
  .mobile-nav {
    display: none !important;
  }
}

.mobile-nav a {
  display: block;
  padding: 0.75rem 0.75rem;
  border-radius: var(--radius);
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
}

.mobile-nav a:hover {
  background: var(--surface);
  color: var(--primary);
}

/* Sections */
.section {
  padding: var(--space-10) 0;
}

@media (min-width: 640px) {
  .section {
    padding: 5rem 0;
  }
}

.section--border-y {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(21, 24, 28, 0.4);
}

.section--ia {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(42, 139, 133, 0.06);
}

.section--cta-bottom {
  padding-bottom: var(--space-10);
}

/* Hero */
.hero {
  border-bottom: 1px solid var(--border);
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
  overflow: hidden;
}

@media (min-width: 640px) {
  .hero {
    padding-top: var(--space-8);
    padding-bottom: 6rem;
  }
}

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

@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

.hero h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .hero h1 {
    font-size: 32px;
  }
}

.hero__lead {
  margin-top: var(--space-3);
  max-width: 36rem;
  color: var(--text-muted);
}

.hero__actions {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero__visual {
  display: flex;
  justify-content: center;
}

@media (min-width: 1024px) {
  .hero__visual {
    justify-content: flex-end;
  }
}

.phone-frame {
  width: 260px;
  position: relative;
}

@media (min-width: 640px) {
  .phone-frame {
    width: 300px;
  }
}

.phone-frame__outer {
  display: flex;
  flex-direction: column;
  aspect-ratio: 9 / 19;
  width: 100%;
  border-radius: var(--radius-phone);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 12px;
  box-shadow: 0 0 0 1px rgba(42, 47, 52, 0.5);
  min-height: 0;
}

.phone-frame__inner {
  flex: 1 1 auto;
  position: relative;
  min-height: 0;
  min-width: 0;
  width: 100%;
  overflow: hidden;
  border-radius: 1.35rem;
  background: var(--bg);
  display: grid;
  grid-template: 1fr / 1fr;
}

.phone-frame__inner img {
  grid-area: 1 / 1;
  align-self: stretch;
  justify-self: stretch;
  max-width: none;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: top center;
}

/* Core value grid */
.grid-3 {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(21, 24, 28, 0.8);
  padding: var(--space-4);
}

.value-card svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.value-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  line-height: 1.25;
}

.value-card p {
  margin: var(--space-2) 0 0;
  color: var(--text-muted);
}

/* Features */
.section-title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 28px;
  }
}

.section-intro {
  margin-top: var(--space-2);
  max-width: 42rem;
  color: var(--text-muted);
}

.feature-grid {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-2);
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: var(--space-3);
  transition: border-color 0.15s;
}

.feature-card:hover {
  border-color: rgba(42, 139, 133, 0.25);
}

.feature-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.feature-card p {
  margin: var(--space-2) 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

/* App preview */
.preview-row {
  margin-top: var(--space-6);
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-1);
  margin-left: calc(-1 * var(--space-2));
  margin-right: calc(-1 * var(--space-2));
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

@media (min-width: 640px) {
  .preview-row {
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    overflow: visible;
    scroll-snap-type: none;
  }
}

.preview-card {
  flex: 0 0 240px;
  scroll-snap-align: center;
}

@media (min-width: 640px) {
  .preview-card {
    flex: none;
    min-width: 0;
  }
}

.preview-card__frame {
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg);
  display: grid;
  grid-template: 1fr / 1fr;
  min-height: 0;
}

.preview-card__frame img {
  grid-area: 1 / 1;
  align-self: stretch;
  justify-self: stretch;
  max-width: none;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: top center;
}

.preview-card figcaption {
  margin-top: var(--space-2);
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

/* IA */
.ia-grid {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 768px) {
  .ia-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.ia-block {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(42, 47, 52, 0.8);
  background: var(--surface);
  padding: var(--space-3);
}

.ia-block h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}

.ia-block p {
  margin: var(--space-2) 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

/* Final CTA */
.cta-box {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: var(--space-6) var(--space-4);
  text-align: center;
}

@media (min-width: 640px) {
  .cta-box {
    padding: 3.5rem 3rem;
  }
}

.cta-box h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

@media (min-width: 640px) {
  .cta-box h2 {
    font-size: 28px;
  }
}

.cta-box__lead {
  margin: var(--space-2) auto 0;
  max-width: 32rem;
  color: var(--text-muted);
}

.cta-box__row {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .cta-box__row {
    flex-direction: row;
    justify-content: center;
  }
}

.cta-box .btn--primary-lg {
  width: 100%;
}

@media (min-width: 640px) {
  .cta-box .btn--primary-lg {
    width: auto;
  }
}

.waitlist {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
  max-width: 28rem;
}

@media (min-width: 640px) {
  .waitlist {
    flex-direction: row;
    align-items: center;
  }
}

.waitlist input {
  flex: 1;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 0.75rem 1rem;
  font-size: 16px;
  color: var(--text);
}

.waitlist input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.waitlist input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.waitlist button[type="submit"] {
  flex-shrink: 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  padding: 0.75rem 1.25rem;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.waitlist button[type="submit"]:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-6) 0;
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .footer-grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 14px;
}

@media (min-width: 640px) {
  .footer-nav {
    align-items: flex-end;
  }
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.15s;
}

.footer-nav a:hover {
  color: var(--primary);
}

.site-footer .brand img {
  width: 32px;
  height: 32px;
}

.copyright {
  margin-top: var(--space-4);
  font-size: 14px;
  color: var(--text-soft);
}

/* Legal */
.legal {
  min-height: 60vh;
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-10);
}

.back-link {
  font-size: 14px;
  color: var(--primary);
  transition: color 0.15s;
}

.back-link:hover {
  color: var(--text);
}

.legal h1 {
  margin: var(--space-4) 0 0;
  font-size: 28px;
  font-weight: 600;
}

.legal-body {
  margin-top: var(--space-4);
  max-width: 42rem;
}

.legal-body > p {
  margin: 0 0 var(--space-3);
  color: rgba(255, 255, 255, 0.8);
}

.legal-body h2 {
  margin: var(--space-6) 0 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.legal-body h2:first-of-type {
  margin-top: var(--space-4);
}

.legal-body ul {
  margin: var(--space-2) 0 var(--space-3);
  padding-left: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
}

.legal-body li {
  margin-top: var(--space-1);
}

/* Page confirmation e-mail (auth) */
.legal--center {
  text-align: center;
}

.legal--center .back-link {
  display: inline-block;
}

.legal--center h1 {
  margin-top: var(--space-4);
}

.legal--center .legal-body {
  margin-left: auto;
  margin-right: auto;
  max-width: 36rem;
}

.legal--center .legal-body > p:first-of-type {
  margin-bottom: 0;
}

.email-confirmed-actions {
  margin-top: var(--space-6);
}

.email-confirmed-actions .btn {
  width: 100%;
}

@media (min-width: 640px) {
  .email-confirmed-actions .btn {
    width: auto;
  }
}

.email-confirmed-hint {
  margin-top: var(--space-4);
  margin-bottom: 0;
  font-size: 14px;
  color: var(--text-soft);
}

a.contact-email {
  color: var(--primary);
  font-weight: 500;
  transition: color 0.15s;
}

a.contact-email:hover {
  color: var(--text);
}