@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  --bg: #0F172A;
  --card: #1E293B;
  --card-2: #162032;
  --accent: #06B6D4;
  --accent-dim: rgba(6,182,212,0.12);
  --accent-border: rgba(6,182,212,0.25);
  --text: #F8FAFC;
  --text-muted: rgba(248,250,252,0.55);
  --text-dim: rgba(248,250,252,0.35);
  --border: rgba(248,250,252,0.08);
  --border-hover: rgba(6,182,212,0.3);
  --radius: 12px;
  --radius-lg: 18px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent-border); border-radius: 99px; }

/* ── TOP BAR ── */
.top-bar {
  background: rgba(15,23,42,0.95);
  border-bottom: 0.5px solid var(--border);
  padding: 0.45rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.top-bar-email { color: var(--accent); text-decoration: none; }
.top-bar-social { display: flex; gap: 1rem; align-items: center; }
.top-bar-social a {
  color: var(--text-dim);
  font-size: 1rem;
  text-decoration: none;
  transition: color 0.2s;
  display: flex; align-items: center;
}
.top-bar-social a:hover { color: var(--accent); }
.top-bar-right { display: flex; align-items: center; gap: 1.5rem; }

/* Language Selector */
.lang-select {
  background: transparent;
  border: 0.5px solid var(--border);
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2306B6D4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
}
.lang-select:focus { outline: none; border-color: var(--accent); }
.lang-select option { background: #1E293B; }

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(15,23,42,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
  padding: 0 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: 0 4px 32px rgba(0,0,0,0.4); }

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.nav-logo-mark {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.85rem; color: #0F172A;
  letter-spacing: 0;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2.25rem;
  list-style: none;
  align-items: center;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1.5px;
  background: var(--accent);
  border-radius: 99px;
}

.nav-actions { display: flex; gap: 0.75rem; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 0.5px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent-border); color: var(--text); }
.btn-primary {
  background: var(--accent);
  color: #0F172A;
  font-weight: 600;
}
.btn-primary:hover { background: #0DD4F0; box-shadow: 0 0 24px rgba(6,182,212,0.3); }
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-border);
}
.btn-outline:hover { background: var(--accent-dim); }
.btn-lg { padding: 0.85rem 2rem; font-size: 0.95rem; }
.btn-xl { padding: 1rem 2.4rem; font-size: 1rem; }

/* Hamburger */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--text); margin: 5px 0; transition: all 0.3s; }

/* ── PAGE WRAPPER ── */
.page { display: none; }
.page.active { display: block; }

/* ── HERO ── */
.hero {
  min-height: calc(100vh - 108px);
  display: flex;
  align-items: center;
  padding: 5rem 3rem;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: url('../assets/banner_gb.png');
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
}
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(15,23,42,0.95) 0%, rgba(15,23,42,0.82) 45%, rgba(15,23,42,0.25) 100%),
    linear-gradient(180deg, rgba(15,23,42,0.2) 0%, rgba(15,23,42,0.75) 100%);
}
.hero-grid-lines {
  display: none;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding: 0.35rem 0.85rem;
  border: 0.5px solid var(--accent-border);
  border-radius: 99px;
  background: var(--accent-dim);
}
.hero-h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-h1 em {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 2.5rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }
.hero-trust {
  display: flex;
  gap: 2.5rem;
}
.hero-trust-item {}
.hero-trust-num {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}
.hero-trust-num span { color: var(--accent); }
.hero-trust-label { font-size: 0.78rem; color: var(--text-dim); margin-top: 0.2rem; }

/* Hero card */
.hero-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.hero-card-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-card-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  border-bottom: 0.5px solid var(--border);
}
.hero-card-stat:last-of-type { border-bottom: none; }
.hero-card-stat-label { font-size: 0.85rem; color: var(--text-muted); }
.hero-card-stat-val { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.hero-card-stat-val.accent { color: var(--accent); }
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22C55E;
  display: inline-block;
  margin-right: 0.4rem;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100%{opacity:1} 50%{opacity:0.4}
}

/* ── SECTION BASE ── */
.section { padding: 6rem 3rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.85rem;
}
.section-h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-h2 em {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.section-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 580px;
}
.section-header { margin-bottom: 3.5rem; }
.section-header.centered { text-align: center; }
.section-header.centered .section-body { margin: 0 auto; }

/* ── CARDS ── */
.card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
}
.card-icon {
  width: 46px; height: 46px;
  background: var(--accent-dim);
  border: 0.5px solid var(--accent-border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.3rem;
}
.card-title { font-size: 1.05rem; font-weight: 600; color: var(--text); margin-bottom: 0.5rem; }
.card-body { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; }

/* ── GRID UTILITIES ── */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.25rem; }

/* ── DIVIDER ── */
.divider { height: 0.5px; background: var(--border); margin: 0; }
.accent-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin: 0;
  opacity: 0.4;
}

/* ── PROBLEM SECTION ── */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.problem-list { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2.5rem; }
.problem-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 0.5px solid var(--border);
  border-left: 2px solid #EF4444;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.problem-icon { font-size: 1.25rem; min-width: 28px; margin-top: 1px; }
.problem-title { font-size: 0.925rem; font-weight: 600; color: var(--text); margin-bottom: 0.25rem; }
.problem-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; }

.solution-list { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2.5rem; }
.solution-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem;
  background: var(--card);
  border: 0.5px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ── MARKET SECTION ── */
.market-stats {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1.25rem;
  margin-bottom: 3rem;
}
.market-stat-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
}
.market-stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.market-stat-label { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

/* ── MODEL SECTION ── */
.model-cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
.model-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.model-card.featured {
  border-color: var(--accent-border);
  background: linear-gradient(135deg, var(--card) 0%, rgba(6,182,212,0.06) 100%);
}
.model-card-badge {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 99px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1rem;
}
.model-card-badge.future { background: rgba(168,85,247,0.12); color: #A855F7; }
.model-card-title { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 0.5rem; }
.model-card-desc { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; }
.model-card-list { list-style: none; margin-top: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.model-card-list li { font-size: 0.82rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.6rem; }
.model-card-list li::before { content: '→'; color: var(--accent); font-size: 0.8rem; }

/* ── VISION SECTION ── */
.vision-timeline { display: flex; flex-direction: column; gap: 0; margin-top: 3rem; position: relative; }
.vision-timeline::before {
  content: '';
  position: absolute;
  left: 20px; top: 0; bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-border), transparent);
}
.vision-item {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding-bottom: 2.5rem;
}
.vision-dot {
  width: 41px; min-width: 41px; height: 41px;
  border-radius: 50%;
  background: var(--card);
  border: 1.5px solid var(--accent-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  position: relative; z-index: 1;
}
.vision-year { font-size: 0.75rem; font-weight: 700; color: var(--accent); margin-bottom: 0.35rem; letter-spacing: 0.06em; }
.vision-title { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 0.35rem; }
.vision-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; }

/* ── PROJECTS ── */
.project-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
}
.project-card:hover { border-color: var(--accent-border); transform: translateY(-4px); }
.project-card-img {
  height: 180px;
  background: var(--card-2);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  border-bottom: 0.5px solid var(--border);
  position: relative;
  overflow: hidden;
}
.project-card-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-dim), transparent);
}
.project-card-body { padding: 1.5rem; }
.project-tag {
  display: inline-block;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.tag-live { background: rgba(34,197,94,0.12); color: #22C55E; }
.tag-dev { background: rgba(6,182,212,0.12); color: var(--accent); }
.tag-concept { background: rgba(168,85,247,0.12); color: #A855F7; }
.project-name { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 0.4rem; }
.project-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; }

/* ── CTA SECTION ── */
.cta-section {
  padding: 6rem 3rem;
  position: relative;
  overflow: hidden;
}
.cta-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(6,182,212,0.08) 0%, transparent 70%);
}
.cta-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative; z-index: 1;
}
.cta-h { font-size: 2.75rem; font-weight: 700; letter-spacing: -0.025em; line-height: 1.15; margin-bottom: 1.25rem; }
.cta-h em { font-family: 'Instrument Serif', serif; font-style: italic; color: var(--accent); font-weight: 400; }
.cta-sub { font-size: 1rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 2.5rem; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── CONTACT PAGE ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
}
.contact-item-icon {
  width: 40px; height: 40px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  min-width: 40px;
}
.contact-item-label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.2rem; }
.contact-item-val { font-size: 0.9rem; color: var(--text); font-weight: 500; }
.contact-item-val a { color: var(--accent); text-decoration: none; }

/* Contact Form */
.contact-form {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.03em;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(15,23,42,0.8);
  border: 0.5px solid rgba(248,250,252,0.12);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color 0.2s;
  outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-dim); }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); }
.form-select { appearance: none; cursor: pointer; }
.form-select option { background: #1E293B; }
.form-textarea { resize: vertical; min-height: 130px; }
.form-file-area {
  border: 1px dashed rgba(248,250,252,0.15);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s;
  position: relative;
}
.form-file-area:hover { border-color: var(--accent-border); }
.form-file-area input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.form-file-icon { font-size: 1.5rem; margin-bottom: 0.5rem; }
.form-file-text { font-size: 0.8rem; color: var(--text-muted); }
.form-file-text span { color: var(--accent); }
.form-submit {
  width: 100%;
  background: var(--accent);
  color: #0F172A;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.9rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.02em;
  margin-top: 0.5rem;
}
.form-submit:hover { background: #0DD4F0; box-shadow: 0 0 24px rgba(6,182,212,0.3); }

/* ── ABOUT PAGE ── */
.about-hero {
  padding: 5rem 3rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.values-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.value-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.value-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.value-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 0.35rem; }
.value-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; }

/* ── INVESTOR RELATIONS ── */
.ir-download-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; margin-bottom: 3rem; }
.ir-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.25s;
}
.ir-card:hover { border-color: var(--accent-border); }
.ir-card-icon { font-size: 2.25rem; }
.ir-card-title { font-size: 1rem; font-weight: 600; color: var(--text); }
.ir-card-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; flex: 1; }
.ir-card-action {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  padding: 0;
}

/* ── FOOTER ── */
.footer {
  background: #080F1C;
  border-top: 0.5px solid var(--border);
  padding: 4rem 3rem 2rem;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 0.75rem;
  display: flex; align-items: center; gap: 0.6rem;
}
.footer-brand-desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.75; max-width: 280px; margin-bottom: 1.5rem; }
.footer-social { display: flex; gap: 0.75rem; }
.footer-social a {
  width: 34px; height: 34px;
  background: rgba(248,250,252,0.05);
  border: 0.5px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s;
}
.footer-social a:hover { background: var(--accent-dim); border-color: var(--accent-border); color: var(--accent); }
.footer-col-title { font-size: 0.8rem; font-weight: 600; color: var(--text); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1.25rem; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 0.5px solid var(--border);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.footer-bottom a { color: var(--text-dim); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent); }

/* ── WHATSAPP BUTTON ── */
.wa-btn {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 999;
  width: 56px; height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: wa-appear 0.5s ease both;
}
.wa-btn:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.55); }
.wa-btn svg { width: 28px; height: 28px; }
@keyframes wa-appear { from{opacity:0;transform:scale(0.5)} to{opacity:1;transform:scale(1)} }
.wa-tooltip {
  position: fixed;
  bottom: 2.85rem;
  right: 4.5rem;
  background: #1E293B;
  border: 0.5px solid rgba(248,250,252,0.1);
  border-radius: 8px;
  padding: 0.5rem 0.9rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 998;
}
.wa-btn:hover + .wa-tooltip { opacity: 1; }

/* ── PAGE HEADER ── */
.page-header {
  padding: 5rem 3rem 4rem;
  position: relative;
  overflow: hidden;
}
.page-header-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 30% 50%, rgba(6,182,212,0.05) 0%, transparent 70%);
}
.page-header-inner { max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }
.page-header h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.page-header h1 em {
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  color: var(--accent);
  font-weight: 400;
}
.page-header p { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; line-height: 1.75; }

/* ── NOTIFICATION ── */
.notification {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(-120px);
  background: #1E293B;
  border: 0.5px solid rgba(34,197,94,0.4);
  border-radius: 10px;
  padding: 0.85rem 1.5rem;
  font-size: 0.875rem;
  color: #22C55E;
  z-index: 9999;
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  white-space: nowrap;
  display: flex; align-items: center; gap: 0.6rem;
}
.notification.show { transform: translateX(-50%) translateY(0); }

/* ── ANIMATIONS ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up-d1 { transition-delay: 0.1s; }
.fade-up-d2 { transition-delay: 0.2s; }
.fade-up-d3 { transition-delay: 0.3s; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner, .problem-grid, .contact-grid, .about-hero { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .grid-3, .grid-4, .ir-download-cards, .market-stats { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-h1 { font-size: 2.5rem; }
  .nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .top-bar { padding: 0.45rem 1.5rem; }
  .section { padding: 4rem 1.5rem; }
  .hero { padding: 4rem 1.5rem; }
  .model-cards { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .grid-3, .grid-4, .ir-download-cards, .market-stats, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 2rem; }
  .cta-h { font-size: 2rem; }
  .page-header h1 { font-size: 2.25rem; }
  .section-h2 { font-size: 1.75rem; }
}

/* ── HERO MOCKUP ── */
.hero-mockup {
  position: relative;
  width: 100%;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Dashboard card (behind) */
.mockup-dashboard {
  position: absolute;
  right: 0;
  top: 10px;
  width: 300px;
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  z-index: 1;
}
.mockup-dashboard-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.mockup-dash-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.mockup-dash-title {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.mockup-dash-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0.25rem 0 0.75rem;
}
.mockup-dash-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.mockup-dash-stat {
  background: rgba(248,250,252,0.03);
  border-radius: 8px;
  padding: 0.5rem 0.4rem;
  text-align: center;
}
.mds-num { font-size: 0.8rem; font-weight: 700; color: var(--accent); }
.mds-label { font-size: 0.55rem; color: var(--text-dim); margin-top: 0.15rem; }
.mockup-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 50px;
  background: rgba(248,250,252,0.02);
  border-radius: 8px;
  padding: 0.5rem;
}
.mockup-bar {
  flex: 1;
  background: rgba(6,182,212,0.25);
  border-radius: 2px 2px 0 0;
  transition: height 0.3s;
}

/* Phone (front) */
.mockup-phone {
  position: absolute;
  left: 30px;
  top: 0;
  z-index: 2;
  width: 155px;
}
.mockup-phone-inner {
  background: #0A1628;
  border: 2px solid rgba(248,250,252,0.12);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6), 0 0 0 1px rgba(6,182,212,0.1);
  padding: 0.5rem;
}
.mockup-phone-notch {
  width: 50px; height: 10px;
  background: #0A1628;
  border-radius: 99px;
  margin: 0 auto 0.5rem;
  border: 1.5px solid rgba(248,250,252,0.1);
}
.mockup-phone-screen { padding: 0 0.25rem 0.25rem; }
.mps-header { margin-bottom: 0.5rem; }
.mps-balance-card {
  background: linear-gradient(135deg, var(--accent), #0891b2);
  border-radius: 10px;
  padding: 0.6rem;
  margin-bottom: 0.5rem;
}
.mps-row {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.5rem;
}
.mps-action { flex: 1; text-align: center; }
.mps-action-icon {
  width: 24px; height: 24px;
  background: rgba(248,250,252,0.06);
  border: 0.5px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.6rem;
  color: var(--text-muted);
  margin: 0 auto 0.2rem;
}
.mps-action-label { font-size: 0.45rem; color: var(--text-dim); }
.mps-txn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0;
  border-bottom: 0.5px solid rgba(248,250,252,0.04);
}
.mps-txn-icon {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.6rem; font-weight: 700;
  min-width: 20px;
}
.mps-txn-name { font-size: 0.55rem; color: var(--text-muted); }
.mps-txn-amt { font-size: 0.55rem; font-weight: 600; margin-left: auto; }

/* Floating badge */
.mockup-badge {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 0.5px solid rgba(34,197,94,0.3);
  border-radius: 99px;
  padding: 0.4rem 0.9rem;
  font-size: 0.72rem;
  color: #22C55E;
  font-weight: 500;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  z-index: 3;
}

@media (max-width: 900px) {
  .hero-mockup { display: none; }
}