/* ═══════════ BASE RESET ═══════════ */
*, *::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;
  scroll-padding-top: 5rem;
}

/* ═══════════ TOKENS ═══════════ */
:root {
  /* Type */
  --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-3xl:  clamp(2.5rem, 1rem + 4vw, 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;

  /* ConatusMusica Brand Colors — Dark Theme */
  --bg:          #0A0A0C;
  --bg-surface:  #111114;
  --bg-card:     #16161A;
  --bg-card-hover: #1C1C22;
  --border:      #2A2A32;
  --border-subtle: #1E1E26;

  --text:        #F0ECE3;
  --text-muted:  #8A8A9A;
  --text-faint:  #55555F;

  --teal:        #00E5CC;
  --teal-dim:    #00B8A3;
  --teal-glow:   rgba(0, 229, 204, 0.15);
  --indigo:      #1a0533;
  --orange:      #F5A623;
  --orange-bright: #FF6B35;
  --orange-glow: rgba(245, 166, 35, 0.12);

  /* Gradient */
  --grad-primary: linear-gradient(135deg, #1a0533, #00E5CC);
  --grad-text:    linear-gradient(90deg, #00E5CC, #F5A623);
  --grad-orange:  linear-gradient(135deg, #F5A623, #FF6B35);

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-glow-teal: 0 0 30px rgba(0, 229, 204, 0.12);
  --shadow-glow-orange: 0 0 30px rgba(245, 166, 35, 0.1);

  /* Fonts */
  --font-display: 'Bebas Neue', 'Impact', sans-serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-serif: 'Cormorant Garamond', 'Georgia', serif;

  /* Content widths */
  --content-default: 960px;
  --content-wide: 1200px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
ul[role="list"] { list-style: none; }
input, button, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; }
p { text-wrap: pretty; max-width: 72ch; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

::selection {
  background: rgba(0, 229, 204, 0.25);
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.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;
}

/* ═══════════ UTILITIES ═══════════ */
.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--teal);
  color: #0A0A0C;
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-teal);
  background: #1AEBD4;
}
.btn--primary:active {
  transform: translateY(0);
}

.btn--large {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
}

/* ═══════════ SCROLL ANIMATIONS ═══════════ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
}

/* ═══════════ NAV ═══════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.menu-open {
  z-index: 9999;
  background: var(--bg);
}
.nav--scrolled {
  border-bottom-color: var(--border-subtle);
  background: rgba(10, 10, 12, 0.95);
}

.nav__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.nav__brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--text);
}
.nav__brand-accent {
  color: var(--teal);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}
.nav__links a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.nav__links a:hover {
  color: var(--text);
}
.nav__cta {
  padding: var(--space-2) var(--space-5);
  background: var(--teal);
  color: #0A0A0C !important;
  border-radius: var(--radius-md);
  font-weight: 600;
}
.nav__cta:hover {
  background: #1AEBD4;
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav__toggle { display: flex; z-index: 1001; position: relative; }
  .nav__links {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100dvh;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-10);
    background: var(--bg);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1000;
  }
  .nav__links.open {
    visibility: visible;
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav__links a {
    font-size: 2rem;
    color: var(--text);
    font-family: var(--font-display);
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .nav__links .nav__cta {
    margin-top: var(--space-4);
    font-size: var(--text-lg);
  }
}

/* ═══════════ HERO ═══════════ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24) var(--space-6) var(--space-16);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  text-align: center;
}

.hero__tagline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--teal);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  line-height: 1.05;
  margin-bottom: var(--space-6);
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

/* Form */
.hero__form {
  margin-bottom: var(--space-8);
}
.hero__form-row {
  display: flex;
  gap: var(--space-3);
  max-width: 520px;
  margin: 0 auto;
}
.hero__input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.hero__input::placeholder { color: var(--text-faint); }
.hero__input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
  outline: none;
}
.hero__form-note {
  font-size: var(--text-xs);
  color: var(--text-faint);
  margin-top: var(--space-3);
}

@media (max-width: 520px) {
  .hero__form-row {
    flex-direction: column;
  }
}

/* Social proof */
.hero__proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}
.hero__avatars {
  display: flex;
}
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #0A0A0C;
  margin-right: -8px;
  border: 2px solid var(--bg);
  background: hsl(var(--hue) 70% 55%);
}
.hero__proof-text {
  font-size: var(--text-xs);
  color: var(--text-faint);
  margin-left: var(--space-2);
}

/* ═══════════ SECTIONS ═══════════ */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
}
.section--alt {
  background: var(--bg-surface);
}
.section--cta {
  text-align: center;
  padding: clamp(var(--space-16), 10vw, var(--space-24)) 0;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  text-align: center;
  margin-bottom: var(--space-4);
}
.section__subtitle {
  font-size: var(--text-base);
  color: var(--text-muted);
  text-align: center;
  max-width: 560px;
  margin: 0 auto var(--space-12);
}

/* ═══════════ FEATURE CARDS ═══════════ */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.feature-card:hover {
  border-color: var(--border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.feature-card__icon svg {
  width: 24px; height: 24px;
}
.feature-card__icon--teal {
  background: var(--teal-glow);
  color: var(--teal);
}
.feature-card__icon--orange {
  background: var(--orange-glow);
  color: var(--orange);
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}
.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.65;
}

/* ═══════════ ROLE CARDS ═══════════ */
.roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .roles {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .roles {
    grid-template-columns: repeat(2, 1fr);
  }
}

.role-card {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.role-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-teal);
}

.role-card__icon {
  width: 56px; height: 56px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--teal-glow);
  color: var(--teal);
}
.role-card__icon svg {
  width: 26px; height: 26px;
}
.role-card:nth-child(even) .role-card__icon {
  background: var(--orange-glow);
  color: var(--orange);
}
.role-card:nth-child(even):hover {
  border-color: var(--orange);
  box-shadow: var(--shadow-glow-orange);
}

.role-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.role-card p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0 auto;
}

/* ═══════════ TIMELINE ═══════════ */
.timeline {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
  padding-left: var(--space-10);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-10);
}
.timeline__item:last-child { padding-bottom: 0; }

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-10) + 8px);
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
  transition: border-color 0.3s, background 0.3s;
}
.timeline__marker--active {
  border-color: var(--teal);
  background: var(--teal);
  box-shadow: 0 0 12px var(--teal-glow);
}

.timeline__content h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.timeline__content p {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-2);
}

.timeline__phase {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}
.timeline__date {
  font-size: var(--text-xs);
  color: var(--text-faint);
  font-weight: 500;
}

/* ═══════════ ETYMOLOGY SECTION ═══════════ */
.section--etymology {
  padding: clamp(var(--space-16), 10vw, var(--space-24)) 0;
}

.etymology {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.etymology__word {
  font-family: var(--font-display);
  font-size: clamp(3rem, 2rem + 5vw, 5.5rem);
  letter-spacing: 0.08em;
  color: var(--text);
  margin-bottom: var(--space-5);
  line-height: 1;
}

.etymology__definition {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.25rem, 1rem + 1vw, 1.65rem);
  color: var(--teal);
  line-height: 1.5;
  margin-bottom: var(--space-8);
  max-width: 100%;
}

.etymology__body {
  font-size: var(--text-base);
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto;
}

/* ═══════════ CONSTELLATION DOT PATTERN ═══════════ */
.section:not(.section--alt),
.section--cta,
.section--etymology {
  position: relative;
}
.section:not(.section--alt)::after,
.section--cta::after,
.section--etymology::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(0,229,204,0.07) 1px, transparent 1px),
    radial-gradient(circle, rgba(245,166,35,0.05) 1px, transparent 1px);
  background-size: 80px 80px, 120px 120px;
  background-position: 0 0, 40px 40px;
  opacity: 0.6;
  z-index: 0;
}
.section:not(.section--alt) > .container,
.section--cta > .container,
.section--etymology > .container {
  position: relative;
  z-index: 1;
}

/* ═══════════ FOOTER ═══════════ */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-12) 0 var(--space-8);
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-6);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}
.footer__social {
  display: flex;
  gap: var(--space-5);
}
.footer__social a {
  color: var(--text-faint);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.footer__social a:hover {
  color: var(--teal);
  transform: translateY(-2px);
}
.footer__social svg {
  width: 22px; height: 22px;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--text-xs);
  color: var(--text-faint);
}
.footer__contact a {
  color: var(--teal-dim);
  transition: color var(--transition-fast);
}
.footer__contact a:hover { color: var(--teal); }
.footer__attribution {
  color: var(--text-faint);
  font-size: var(--text-xs);
  transition: color var(--transition-fast);
}
.footer__attribution:hover { color: var(--text-muted); }

@media (max-width: 600px) {
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}