/* ============================================================
   VELECTRIKA — STYLES
   Mobile-first responsive design
   Works on web browsers, desktop, and mobile devices
   ============================================================ */

/* ====== DESIGN TOKENS ====== */
:root {
  /* Colors */
  --ink: #0A2540;
  --ink-2: #1a3454;
  --ink-mute: #5b6b7e;
  --paper: #ffffff;
  --paper-2: #f7f9fc;
  --paper-3: #eef2f7;
  --accent: #00C896;
  --accent-2: #00a37a;
  --line: rgba(10, 37, 64, 0.12);
  --line-2: rgba(10, 37, 64, 0.08);

  /* Dark sections */
  --dark-bg: #0A2540;
  --dark-bg-2: #0d2c4d;
  --dark-ink: #ffffff;
  --dark-ink-mute: rgba(255, 255, 255, 0.7);
  --dark-line: rgba(255, 255, 255, 0.15);

  /* Fonts */
  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Layout */
  --max-w: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --section-y: clamp(3rem, 8vw, 6rem);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 22px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t: 0.35s;
}

/* ====== RESET & BASE ====== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--ink);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

a:hover {
  color: var(--accent-2);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.1;
  margin: 0 0 0.75em;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 400;
}

h2 {
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-weight: 500;
}

h4 {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-sans);
}

p {
  margin: 0 0 1em;
}

em {
  font-style: italic;
  font-family: var(--font-serif);
}

.accent {
  color: var(--accent);
  font-style: italic;
}

/* ====== LANGUAGE TOGGLE: hide non-active lang ====== */
[data-lang="pt"] { display: none; }
html[lang="pt"] [data-lang="en"] { display: none; }
html[lang="pt"] [data-lang="pt"] { display: inline; }
html[lang="pt"] [data-lang="pt"].n,
html[lang="pt"] [data-lang="pt"].l,
html[lang="pt"] [data-lang="pt"].name,
html[lang="pt"] [data-lang="pt"].role { display: block; }
html[lang="en"] [data-lang="en"] { display: inline; }

/* Block-level language elements */
h1[data-lang], h2[data-lang], h3[data-lang], h4[data-lang],
p[data-lang], div[data-lang], li[data-lang], label[data-lang] {
  display: none;
}
html[lang="en"] h1[data-lang="en"],
html[lang="en"] h2[data-lang="en"],
html[lang="en"] h3[data-lang="en"],
html[lang="en"] h4[data-lang="en"],
html[lang="en"] p[data-lang="en"],
html[lang="en"] div[data-lang="en"],
html[lang="en"] li[data-lang="en"],
html[lang="en"] label[data-lang="en"] { display: block; }
html[lang="pt"] h1[data-lang="pt"],
html[lang="pt"] h2[data-lang="pt"],
html[lang="pt"] h3[data-lang="pt"],
html[lang="pt"] h4[data-lang="pt"],
html[lang="pt"] p[data-lang="pt"],
html[lang="pt"] div[data-lang="pt"],
html[lang="pt"] li[data-lang="pt"],
html[lang="pt"] label[data-lang="pt"] { display: block; }

/* ====== LAYOUT CONTAINERS ====== */
section {
  padding: var(--section-y) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-fullbleed {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section-head {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-head .label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 1rem;
}

.section-head h2 {
  max-width: 28ch;
}

/* Dark sections */
section.dark, .strategy.dark {
  background: var(--dark-bg);
  color: var(--dark-ink);
}

.dark h1, .dark h2, .dark h3, .dark h4 {
  color: var(--dark-ink);
}

.dark .label,
.dark .section-head .label {
  color: var(--dark-ink-mute);
}

.dark p {
  color: var(--dark-ink-mute);
}

.aurora {
  background:
    radial-gradient(60% 80% at 20% 0%, rgba(0, 200, 150, 0.18), transparent 60%),
    radial-gradient(50% 70% at 90% 30%, rgba(0, 122, 255, 0.18), transparent 60%),
    var(--dark-bg);
}

/* ====== NAV ====== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem var(--gutter);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.nav.scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.95);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 200, 150, 0.18);
}

.brand-logo {
  height: 22px;
  width: auto;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--ink-2);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--accent-2);
}

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--paper);
}

.lang-toggle button {
  border: 0;
  background: transparent;
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
  cursor: pointer;
  font-family: var(--font-mono);
}

.lang-toggle button.active {
  background: var(--ink);
  color: #fff;
}

.nav-burger {
  display: none;
  border: 0;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--ink);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

/* ====== BUTTONS ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease), border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
  font-family: var(--font-sans);
  white-space: nowrap;
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-2);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px -8px rgba(0, 163, 122, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  background: var(--paper-2);
  border-color: var(--ink);
  color: var(--ink);
}

.btn .arrow {
  transition: transform var(--t) var(--ease);
}

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

/* ====== HERO ====== */
.hero {
  padding: clamp(2.5rem, 7vw, 5.5rem) var(--gutter) clamp(3rem, 6vw, 5rem);
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 5vw, 3.5rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1rem;
}

.hero-tag {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--ink-mute);
  max-width: 56ch;
  margin-bottom: 2rem;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Hero video card */
.video-card {
  position: relative;
  aspect-ratio: 4 / 5;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--paper-3);
  cursor: pointer;
  box-shadow: 0 20px 60px -20px rgba(10, 37, 64, 0.25);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 80px -20px rgba(10, 37, 64, 0.35);
}

.video-poster {
  position: absolute;
  inset: 0;
}

.placeholder-art {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 70% at 30% 30%, rgba(0, 200, 150, 0.35), transparent 60%),
    radial-gradient(60% 70% at 80% 70%, rgba(10, 37, 64, 0.4), transparent 60%),
    linear-gradient(135deg, #0A2540 0%, #1a3454 60%, #00a37a 100%);
}

.video-soon-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  z-index: 2;
}

.video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: transform var(--t) var(--ease);
}

.video-card:hover .video-play {
  transform: translate(-50%, -50%) scale(1.08);
}

.video-play svg {
  width: 28px;
  height: 28px;
  fill: var(--ink);
  margin-left: 3px;
}

.video-caption {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  color: #fff;
  z-index: 2;
}

.video-caption .duration {
  display: inline-block;
  background: rgba(0, 0, 0, 0.5);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  margin-bottom: 0.4rem;
}

.video-caption .name {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
}

.video-caption .role {
  display: block;
  font-size: 0.8rem;
  opacity: 0.85;
}

/* Hero stat strip */
.hero-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.stat .n {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat .l {
  font-size: 0.82rem;
  color: var(--ink-mute);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ====== PROBLEM ====== */
.problem {
  background: var(--paper-2);
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.problem-text p {
  font-size: 1.05rem;
  color: var(--ink-2);
  line-height: 1.7;
}

.punchline {
  margin-top: 1.5rem;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.3;
  color: var(--ink);
}

.stepper {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.stepper-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-2);
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--line-2);
}

.step:last-child {
  border-bottom: 0;
}

.step-n {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
}

.step-bad .step-n {
  background: #c83a3a;
}

.step-t {
  font-size: 0.95rem;
  color: var(--ink-2);
}

/* ====== SOLUTION / PILLARS ====== */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.pillar {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}

.pillar:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 50px -20px rgba(10, 37, 64, 0.18);
  border-color: var(--ink);
}

.pillar .num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  letter-spacing: 0.08em;
  margin-bottom: 0.85rem;
}

.pillar h3 {
  margin-bottom: 0.75rem;
}

.pillar p {
  color: var(--ink-mute);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.pillar ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-2);
  padding-top: 1rem;
}

.pillar li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--ink-2);
}

.pillar li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

/* ====== WHY NOW / REASONS ====== */
.reasons {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.reason {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.reason:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(0, 200, 150, 0.4);
}

.reason h3 {
  color: #fff;
  margin-bottom: 0.6rem;
}

.reason p {
  color: var(--dark-ink-mute);
  font-size: 0.95rem;
  margin: 0;
}

/* ====== TRACTION ====== */
.traction-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.traction-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: center;
  padding: 1rem 1.25rem;
  background: var(--paper-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-2);
  font-size: 0.95rem;
  color: var(--ink-2);
}

.check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* ====== STRATEGY / STACK ====== */
.stack-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.stack-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--dark-line);
  border-radius: var(--radius);
}

.stack-card .layer {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.stack-card .amount {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stack-card .rate {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.85rem;
}

.stack-card .source {
  font-size: 0.85rem;
  color: var(--dark-ink-mute);
  padding-top: 0.85rem;
  border-top: 1px solid var(--dark-line);
}

.strategy-footnote {
  margin-top: 2rem;
  padding: 1.5rem;
  background: rgba(0, 200, 150, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: #fff;
  line-height: 1.5;
}

/* ====== VISION ====== */
.vision-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  letter-spacing: -0.02em;
  max-width: 22ch;
  margin: 0 auto 2rem;
  text-align: center;
}

.vision-cities {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.vision-cities .now {
  color: var(--accent-2);
  font-weight: 700;
}

/* ====== FOUNDERS ====== */
.founders-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.founder {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.founder-photo {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(135deg, #0A2540 0%, #1a3454 60%, #00a37a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.founder-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.founder-photo .placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

.founder-photo .placeholder svg {
  width: 56px;
  height: 56px;
}

.founder-body {
  padding: 1.5rem;
}

.founder-role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
}

.founder-name {
  margin-bottom: 0.75rem;
  font-size: 1.4rem;
}

.placeholder-name,
.placeholder-bio {
  color: var(--ink-mute);
  font-style: italic;
}

.founder-bio {
  font-size: 0.95rem;
  color: var(--ink-2);
  margin-bottom: 1rem;
}

.founder-contact a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-2);
}

/* ====== CTA / CONTACT ====== */
.cta-section {
  background: var(--paper-2);
  text-align: center;
}

.cta-section .eyebrow {
  margin-bottom: 1rem;
}

.cta-section h2 {
  margin-left: auto;
  margin-right: auto;
}

.cta-section > p {
  max-width: 60ch;
  margin: 0 auto 2rem;
  color: var(--ink-mute);
}

.form-card {
  max-width: 560px;
  margin: 2.5rem auto 0;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--paper);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-align: left;
  box-shadow: 0 20px 60px -30px rgba(10, 37, 64, 0.2);
}

.form-card h3 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.form-field {
  margin-bottom: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--ink-2);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.15);
}

.form-field textarea {
  min-height: 100px;
  resize: vertical;
}

.form-status,
.newsletter-status {
  margin-top: 1rem;
  font-size: 0.88rem;
  text-align: center;
  color: var(--accent-2);
}

/* ====== FOOTER ====== */
footer {
  background: var(--dark-bg);
  color: var(--dark-ink-mute);
  padding: clamp(2.5rem, 5vw, 4rem) var(--gutter) 1.5rem;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.footer-brand {
  margin-bottom: 0.75rem;
}

.footer-brand img {
  height: 24px;
}

.footer-brand-tag {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-addr {
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.55);
}

footer h4 {
  color: #fff;
  margin-bottom: 1rem;
}

footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

footer ul li {
  margin-bottom: 0.55rem;
  font-size: 0.9rem;
}

footer ul li a {
  color: var(--dark-ink-mute);
  transition: color var(--t) var(--ease);
}

footer ul li a:hover {
  color: var(--accent);
}

.newsletter h4 {
  margin-bottom: 0.5rem;
}

.newsletter p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1rem;
  max-width: 60ch;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 480px;
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--dark-line);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.92rem;
  font-family: inherit;
}

.newsletter-form input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.newsletter-form button {
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--ink);
  border: 0;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--t) var(--ease);
}

.newsletter-form button:hover {
  background: var(--accent-2);
  color: #fff;
}

.footer-bottom {
  max-width: var(--max-w);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dark-line);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* ====== FADE-IN ANIMATION ====== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.fade-in.in {
  opacity: 1;
  transform: translateY(0);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
  html { scroll-behavior: auto; }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Small tablets & large phones (landscape) */
@media (min-width: 560px) {
  .hero-strip {
    grid-template-columns: repeat(4, 1fr);
  }

  .traction-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-form {
    flex-direction: row;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* Tablets */
@media (min-width: 768px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }

  .reasons {
    grid-template-columns: repeat(2, 1fr);
  }

  .stack-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .founders-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .problem-grid {
    grid-template-columns: 1.2fr 1fr;
  }
}

/* Desktop */
@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.3fr 1fr;
  }

  .pillars {
    grid-template-columns: repeat(3, 1fr);
  }

  .reasons {
    grid-template-columns: repeat(2, 1fr);
  }

  .traction-list {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Large desktop */
@media (min-width: 1100px) {
  .reasons {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================================
   MOBILE NAV — burger menu
   ============================================================ */
@media (max-width: 880px) {
  .nav-burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 1rem var(--gutter);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--t) var(--ease);
  }

  .nav-links.open {
    max-height: 80vh;
    overflow-y: auto;
  }

  .nav-links a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line-2);
    font-size: 1rem;
  }

  .nav-links a:last-child {
    border-bottom: 0;
  }
}

/* ============================================================
   SMALL PHONES — extra trim
   ============================================================ */
@media (max-width: 420px) {
  .brand-logo {
    height: 18px;
  }

  .brand-dot {
    width: 8px;
    height: 8px;
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.18);
  }

  .lang-toggle button {
    padding: 0.3rem 0.55rem;
    font-size: 0.72rem;
  }

  .nav {
    padding: 0.7rem var(--gutter);
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .video-card {
    aspect-ratio: 3 / 4;
  }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .nav, footer, .video-card, .form-card, .nav-burger {
    display: none !important;
  }
  body {
    color: #000;
    background: #fff;
  }
  section, .dark, .aurora {
    background: #fff !important;
    color: #000 !important;
    page-break-inside: avoid;
  }
  .fade-in {
    opacity: 1 !important;
    transform: none !important;
  }
}