/* ============================================================
   EDENI — Waitlist Landing Page
   Art Direction: Editorial luxury activewear. Deep off-black,
   warm cream, dusty sage accent. Cormorant display + Switzer body.
   ============================================================ */

/* ── Design Tokens ── */
:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #f5f3ee;
  --color-surface: #faf9f6;
  --color-border: #dbd8d0;
  --color-divider: #e5e2db;

  /* Text */
  --color-text: #1a1814;
  --color-text-muted: #6e6b63;
  --color-text-faint: #b0aca4;
  --color-text-inverse: #f5f3ee;

  /* Accent — dusty sage */
  --color-primary: #5a6e58;
  --color-primary-hover: #3f5040;
  --color-primary-active: #2c3a2c;
  --color-primary-highlight: #d2dbd1;

  /* Fonts */
  --font-display: 'Cormorant', 'Georgia', serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-hero: clamp(2.8rem,   1.5rem  + 4.5vw,  5.5rem);

  /* Spacing */
  --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;

  /* Misc */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-full: 9999px;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(26,24,20,0.06);
  --shadow-md: 0 4px 16px rgba(26,24,20,0.09);
}

[data-theme='dark'] {
  --color-bg: #131210;
  --color-surface: #1a1916;
  --color-border: #2e2c28;
  --color-divider: #232220;
  --color-text: #e8e5de;
  --color-text-muted: #7a7870;
  --color-text-faint: #4a4844;
  --color-text-inverse: #131210;
  --color-primary: #8aaa87;
  --color-primary-hover: #6d8e6a;
  --color-primary-active: #536b51;
  --color-primary-highlight: #2a3329;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #131210;
    --color-surface: #1a1916;
    --color-border: #2e2c28;
    --color-divider: #232220;
    --color-text: #e8e5de;
    --color-text-muted: #7a7870;
    --color-text-faint: #4a4844;
    --color-text-inverse: #131210;
    --color-primary: #8aaa87;
    --color-primary-hover: #6d8e6a;
    --color-primary-active: #536b51;
    --color-primary-highlight: #2a3329;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  }
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition), color var(--transition);
}

img, svg { display: block; max-width: 100%; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input { font: inherit; color: inherit; }

h1, h2, h3 { text-wrap: balance; line-height: 1.1; }
p, li { text-wrap: pretty; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-8);
  background: color-mix(in oklab, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-divider);
}

.logo {
  display: flex;
  align-items: center;
}

.logo-svg {
  height: 22px;
  width: auto;
  color: var(--color-text);
  transition: color var(--transition);
}

.logo:hover .logo-svg {
  color: var(--color-primary);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-divider);
}

/* ── Main ── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: calc(80px + var(--space-16)) var(--space-8) var(--space-20);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.hero-headline em {
  font-style: italic;
  font-weight: 300;
  color: var(--color-primary);
}

.hero-sub {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 300;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 48ch;
  margin-bottom: var(--space-10);
}

/* ── Form ── */
.waitlist-form {
  width: 100%;
  max-width: 480px;
}

.input-group {
  display: flex;
  gap: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--space-2);
  transition: border-color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
}

.input-group:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-primary) 18%, transparent);
}

.input-group input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  outline: none;
  font-size: var(--text-sm);
  color: var(--color-text);
  min-width: 0;
}

.input-group input::placeholder {
  color: var(--color-text-faint);
}

.btn-submit {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-text);
  color: var(--color-bg);
  border-radius: calc(var(--radius-md) - 2px);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}

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

.btn-submit:active {
  transform: scale(0.97);
}

.btn-arrow {
  transition: transform var(--transition);
  flex-shrink: 0;
}

.btn-submit:hover .btn-arrow {
  transform: translateX(3px);
}

.form-hint {
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.form-success {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.form-error {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: #a12c2c;
}

/* ── Abstract decorative shapes ── */
.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  background: color-mix(in oklab, var(--color-primary) 8%, transparent);
  transition: background var(--transition);
}

.hero-shape--1 {
  width: clamp(300px, 50vw, 600px);
  height: clamp(300px, 50vw, 600px);
  right: -10%;
  top: -15%;
  background: color-mix(in oklab, var(--color-primary) 6%, transparent);
}

.hero-shape--2 {
  width: clamp(150px, 25vw, 300px);
  height: clamp(150px, 25vw, 300px);
  right: 8%;
  bottom: 10%;
  background: color-mix(in oklab, var(--color-text) 4%, transparent);
}

.hero-line {
  position: absolute;
  background: var(--color-border);
}

.hero-line--1 {
  width: 1px;
  height: 40%;
  right: 15%;
  top: 0;
  opacity: 0.5;
}

.hero-line--2 {
  width: 25%;
  height: 1px;
  right: 0;
  top: 55%;
  opacity: 0.3;
}

/* ── Proof bar ── */
.proof-bar {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-6) var(--space-8);
}

.proof-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.proof-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1;
  color: var(--color-text);
}

.proof-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  white-space: nowrap;
  line-height: 1.3;
}

.proof-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
  flex-shrink: 0;
}

.proof-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
}

/* ── Footer ── */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
}

.footer-social a:hover {
  color: var(--color-text);
}

/* ── Animations ── */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-eyebrow  { animation: fade-up 0.7s cubic-bezier(0.16,1,0.3,1) 0.1s both; }
.hero-headline { animation: fade-up 0.8s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
.hero-sub      { animation: fade-up 0.8s cubic-bezier(0.16,1,0.3,1) 0.35s both; }
.waitlist-form { animation: fade-up 0.8s cubic-bezier(0.16,1,0.3,1) 0.5s both; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .header {
    padding: var(--space-4) var(--space-5);
  }

  .hero {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
    align-items: flex-start;
    padding-top: calc(70px + var(--space-12));
  }

  .input-group {
    flex-direction: column;
    gap: var(--space-2);
  }

  .btn-submit {
    width: 100%;
    justify-content: center;
    padding: var(--space-4);
  }

  .proof-inner {
    gap: var(--space-4);
  }

  .proof-divider {
    display: none;
  }

  .footer {
    padding: var(--space-4) var(--space-5);
  }
}