/* ===== SYSTEM V2 — Premium Marine Intelligence ===== */
:root {
  /* Core palette from spec */
  --color-emerald: #0B3D2E;
  --color-emerald-light: #14614a;
  --color-emerald-glow: rgba(11, 61, 46, 0.4);
  --color-navy: #0E1A2B;
  --color-navy-light: #162640;
  --color-graphite: #1C1F26;
  --color-graphite-light: #2a2e38;

  /* Accent & highlights */
  --color-accent: #00E5A0;
  --color-accent-dim: rgba(0, 229, 160, 0.15);
  --color-accent-glow: rgba(0, 229, 160, 0.3);
  --color-gold: #C9A84C;
  --color-gold-dim: rgba(201, 168, 76, 0.15);

  /* Neutrals */
  --color-white: #F8F9FA;
  --color-white-pure: #ffffff;
  --color-text: #E8ECF0;
  --color-text-muted: #8B95A5;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.12);

  /* Glass */
  --glass-bg: rgba(14, 26, 43, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Outfit', -apple-system, sans-serif;

  /* Spacing & shape */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 40px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font-body);
  background: var(--color-navy);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.header--scrolled {
  background: rgba(14, 26, 43, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 30px rgba(0,0,0,0.4);
}
.header__inner {
  display: flex; align-items: center; justify-content: space-between; height: 76px;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; z-index: 10; }
.logo__mark { width: 36px; height: 36px; color: var(--color-accent); }
.logo__mark svg { width: 100%; height: 100%; }
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--color-white); }
.logo__system { font-size: 0.6rem; font-weight: 600; letter-spacing: 3px; text-transform: uppercase; color: var(--color-accent); }

/* Nav */
.nav { display: flex; gap: 28px; }
.nav__link {
  color: var(--color-text-muted); font-size: 0.88rem; font-weight: 500;
  letter-spacing: 0.3px; position: relative; padding: 4px 0;
}
.nav__link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--color-accent);
  transition: width var(--transition);
}
.nav__link:hover { color: var(--color-white); }
.nav__link:hover::after { width: 100%; }

/* Header actions */
.header__actions { display: flex; align-items: center; gap: 14px; }
.lang-btn {
  display: flex; align-items: center; gap: 3px;
  font-size: 0.82rem; font-weight: 600;
  padding: 6px 12px; border-radius: var(--radius-sm);
  transition: background var(--transition); cursor: pointer;
}
.lang-btn:hover { background: rgba(255,255,255,0.06); }
.lang-btn__active { color: var(--color-accent); }
.lang-btn__sep { color: var(--color-text-muted); opacity: 0.4; }
.lang-btn__inactive { color: var(--color-text-muted); opacity: 0.6; }

/* Burger */
.burger { display: none; flex-direction: column; gap: 5px; width: 26px; padding: 4px 0; z-index: 10; }
.burger span { display: block; height: 2px; background: var(--color-white); border-radius: 2px; transition: var(--transition); }
.burger--active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.burger--active span:nth-child(2) { opacity: 0; }
.burger--active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600;
  border-radius: var(--radius-xl); transition: all var(--transition);
  cursor: pointer; white-space: nowrap; border: 2px solid transparent;
}
.btn--sm { padding: 8px 22px; font-size: 0.85rem; }
.btn--lg { padding: 15px 34px; font-size: 1rem; }
.btn--full { width: 100%; }
.btn--accent {
  background: var(--color-accent); color: var(--color-navy);
  border-color: var(--color-accent); font-weight: 700;
}
.btn--accent:hover {
  background: #00ffb4; transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--color-accent-glow);
}
.btn--glass {
  background: rgba(255,255,255,0.06); color: var(--color-white);
  border-color: rgba(255,255,255,0.15); backdrop-filter: blur(12px);
}
.btn--glass:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.25); }

/* ===== HERO ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 35%; }
.hero__gradient {
  position: absolute; inset: 0;
  background: linear-gradient(135deg,
    rgba(14, 26, 43, 0.92) 0%,
    rgba(11, 61, 46, 0.75) 35%,
    rgba(28, 31, 38, 0.6) 65%,
    rgba(14, 26, 43, 0.85) 100%
  );
}
.hero__particles { position: absolute; inset: 0; z-index: 1; pointer-events: none; }

.hero__grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr auto;
  gap: 48px; align-items: center;
  padding-top: 120px; padding-bottom: 80px;
}

.hero__content { max-width: 660px; }

.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--color-accent-dim);
  border: 1px solid rgba(0, 229, 160, 0.25);
  color: var(--color-accent); padding: 8px 18px;
  border-radius: var(--radius-xl); font-size: 0.82rem; font-weight: 600;
  margin-bottom: 28px; backdrop-filter: blur(10px);
  letter-spacing: 0.3px; animation: fadeInDown 0.8s ease-out;
}
.hero__badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
  animation: pulse 2s infinite;
}

.hero__title {
  font-family: var(--font-display); line-height: 1.05;
  margin-bottom: 24px; animation: fadeInUp 0.8s ease-out 0.2s both;
}
.hero__title-line {
  display: block; font-size: clamp(2.8rem, 6vw, 4.8rem); font-weight: 700;
  color: var(--color-white);
}
.hero__title-accent {
  display: block; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), #00ffc8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero__desc {
  color: var(--color-text-muted); font-size: 1.1rem; line-height: 1.7;
  margin-bottom: 36px; max-width: 560px;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__cta {
  display: flex; gap: 16px; flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* Hero metrics — vertical stack on right */
.hero__metrics {
  display: flex; flex-direction: column; gap: 16px;
  animation: fadeInUp 0.8s ease-out 0.8s both;
}
.hero__metric {
  padding: 20px 28px; text-align: center; min-width: 180px;
}
.hero__metric-value {
  display: block; font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 700; color: var(--color-accent); line-height: 1;
}
.hero__metric-value::after { content: '+'; font-size: 0.6em; }
.hero__metric-value--pct::after { content: '%'; }
.hero__metric-label {
  display: block; font-size: 0.78rem; color: var(--color-text-muted); margin-top: 4px;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 2;
  animation: fadeInUp 1s ease-out 1.2s both;
}
.scroll-mouse {
  width: 24px; height: 38px; border: 2px solid rgba(255,255,255,0.25);
  border-radius: 12px; position: relative;
}
.scroll-wheel {
  width: 3px; height: 7px; background: var(--color-accent);
  border-radius: 2px; position: absolute; top: 7px;
  left: 50%; transform: translateX(-50%);
  animation: scrollWheel 2s infinite;
}

/* ===== SECTIONS ===== */
.section { position: relative; padding: 100px 0; }
.section__eyebrow {
  display: inline-block; font-size: 0.78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 3px;
  color: var(--color-accent); margin-bottom: 16px;
}
.section__title {
  font-family: var(--font-display); font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700; color: var(--color-white); margin-bottom: 20px; line-height: 1.1;
}
.section__title--split { display: flex; flex-wrap: wrap; gap: 12px; align-items: baseline; }
.section__title--split em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-accent), #00ffc8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.section__lead {
  color: var(--color-text-muted); font-size: 1.15rem; line-height: 1.8;
  max-width: 680px; margin-bottom: 48px;
}

/* ===== ABOUT (minimal, just text intro) ===== */
.about { padding-bottom: 40px; }

/* ===== EXPERIENCE GALLERY ===== */
.experience { padding-top: 20px; }
.experience__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: 20px;
}
.experience__card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 16/10; cursor: pointer;
}
.experience__card--hero { grid-column: span 2; aspect-ratio: 21/9; }
.experience__card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--transition-slow);
}
.experience__card:hover img { transform: scale(1.06); }
.experience__card-content {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(14,26,43,0.85) 0%, transparent 50%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 28px;
}
.experience__card-tag {
  font-size: 0.75rem; font-weight: 600; color: var(--color-accent);
  letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 6px;
}
.experience__card-content h3 {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 600;
  color: var(--color-white);
}
.experience__card--hero .experience__card-content h3 { font-size: 1.8rem; }

/* ===== SYSTEM V2 SECTION ===== */
.system {
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-graphite) 50%, var(--color-navy) 100%);
}
.system__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 64px;
}
.system__card {
  padding: 36px 30px;
  transition: all var(--transition); border: 1px solid var(--glass-border);
}
.system__card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 160, 0.2);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4), 0 0 30px var(--color-accent-dim);
}
.system__card-icon {
  width: 52px; height: 52px; margin-bottom: 20px; color: var(--color-accent);
}
.system__card-icon svg { width: 100%; height: 100%; }
.system__card h3 {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 600;
  color: var(--color-white); margin-bottom: 10px;
}
.system__card p { color: var(--color-text-muted); font-size: 0.92rem; line-height: 1.7; }

/* Architecture flow */
.system__arch { text-align: center; }
.system__flow {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; flex-wrap: wrap; margin-top: 28px;
}
.system__flow-step {
  padding: 16px 24px; display: flex; align-items: center; gap: 12px;
  font-size: 0.88rem; font-weight: 500; color: var(--color-text);
}
.system__flow-num {
  font-family: var(--font-display); font-weight: 700;
  color: var(--color-accent); font-size: 0.75rem;
}
.system__flow-arrow { color: var(--color-accent); opacity: 0.5; flex-shrink: 0; }

/* ===== HOW TO START ===== */
.how__steps {
  display: flex; flex-direction: column; gap: 0;
  max-width: 700px; position: relative;
  padding-left: 60px;
}
.how__steps::before {
  content: ''; position: absolute; left: 23px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(180deg, var(--color-accent), transparent);
}
.how__step {
  display: flex; gap: 24px; padding: 32px 0; position: relative;
}
.how__step-num {
  font-family: var(--font-display); font-size: 1rem; font-weight: 700;
  color: var(--color-accent); min-width: 32px;
  position: absolute; left: -60px;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-navy); border: 2px solid var(--color-accent);
  border-radius: 50%; z-index: 1;
}
.how__step-content h3 {
  font-family: var(--font-display); font-size: 1.25rem; font-weight: 600;
  color: var(--color-white); margin-bottom: 8px;
}
.how__step-content p { color: var(--color-text-muted); font-size: 0.95rem; line-height: 1.7; }

/* ===== REVIEWS ===== */
.reviews__slider { max-width: 760px; margin: 0 auto; overflow: hidden; }
.reviews__track { display: flex; transition: transform var(--transition-slow); }
.review {
  min-width: 100%; padding: 44px; text-align: center;
}
.review__stars { color: var(--color-gold); font-size: 1.1rem; letter-spacing: 4px; margin-bottom: 20px; }
.review__text {
  font-size: 1.05rem; line-height: 1.8; color: var(--color-text);
  font-style: italic; margin-bottom: 24px;
}
.review__author { display: flex; align-items: center; justify-content: center; gap: 14px; }
.review__avatar {
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-emerald), var(--color-accent));
  color: var(--color-white); display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.82rem;
}
.review__author strong { display: block; color: var(--color-white); font-size: 0.95rem; }
.review__author span { display: block; color: var(--color-text-muted); font-size: 0.82rem; }

.reviews__controls { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 28px; }
.reviews__arrow {
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--color-border-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted); transition: all var(--transition);
}
.reviews__arrow:hover { border-color: var(--color-accent); color: var(--color-accent); }
.reviews__dots { display: flex; gap: 8px; }
.reviews__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-border-light); cursor: pointer; transition: all var(--transition);
}
.reviews__dot--active { background: var(--color-accent); width: 26px; border-radius: 5px; }

/* ===== JOIN / FORM ===== */
.join {
  background: linear-gradient(180deg, var(--color-navy) 0%, var(--color-emerald) 100%);
}
.join__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start;
}
.join__desc {
  color: var(--color-text-muted); font-size: 1.05rem; line-height: 1.7; margin-bottom: 28px;
}
.join__perks { display: flex; flex-direction: column; gap: 14px; }
.join__perk {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.95rem; color: var(--color-text);
}
.join__perk svg { color: var(--color-accent); flex-shrink: 0; }

/* Form */
.join__form { padding: 40px; }
.join__form-title {
  font-family: var(--font-display); font-size: 1.3rem; font-weight: 600;
  color: var(--color-white); margin-bottom: 28px; text-align: center;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { position: relative; margin-bottom: 20px; }
.form-input {
  width: 100%; padding: 15px 16px;
  background: rgba(255,255,255,0.04);
  border: 1.5px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-family: var(--font-body); font-size: 0.92rem;
  color: var(--color-white); outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
}
.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}
.form-label {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--color-text-muted); font-size: 0.92rem; pointer-events: none;
  transition: all var(--transition); background: transparent; padding: 0 4px;
}
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: 0; font-size: 0.72rem; color: var(--color-accent);
  background: var(--color-navy-light);
}
.form-label--up {
  top: 0; font-size: 0.72rem; color: var(--color-accent);
  background: var(--color-navy-light);
}
.form-select { cursor: pointer; }
.form-select option { background: var(--color-graphite); color: var(--color-white); }

/* Checkbox */
.form-checkbox {
  display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 24px; cursor: pointer; font-size: 0.85rem; color: var(--color-text-muted);
}
.form-checkbox input { display: none; }
.form-checkbox__mark {
  width: 20px; height: 20px; min-width: 20px;
  border: 1.5px solid var(--color-border-light);
  border-radius: 4px; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); margin-top: 1px;
}
.form-checkbox input:checked ~ .form-checkbox__mark {
  background: var(--color-accent); border-color: var(--color-accent);
}
.form-checkbox input:checked ~ .form-checkbox__mark::after {
  content: ''; display: block; width: 5px; height: 9px;
  border: solid var(--color-navy); border-width: 0 2px 2px 0; transform: rotate(45deg);
}

/* Form status */
.form-status {
  text-align: center; margin-top: 12px; font-size: 0.85rem;
  min-height: 20px;
}
.form-status--error { color: #ff6b6b; }
.form-status--loading { color: var(--color-accent); }

/* ===== FOOTER ===== */
.footer {
  background: var(--color-graphite); padding-top: 60px;
  border-top: 1px solid var(--color-border);
}
.footer__inner { display: flex; justify-content: space-between; gap: 48px; padding-bottom: 40px; }
.footer__tagline { margin-top: 12px; font-size: 0.85rem; color: var(--color-text-muted); }
.footer__nav { display: flex; gap: 56px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 { color: var(--color-white); font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; }
.footer__col a { font-size: 0.85rem; color: var(--color-text-muted); }
.footer__col a:hover { color: var(--color-accent); }
.footer__socials { display: flex; gap: 10px; margin-top: 6px; }
.footer__social-link {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--color-border-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700; color: var(--color-text-muted);
  transition: all var(--transition);
}
.footer__social-link:hover { border-color: var(--color-accent); color: var(--color-accent); }
.footer__bottom { border-top: 1px solid var(--color-border); padding: 16px 0; }
.footer__bottom-inner {
  display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--color-text-muted); opacity: 0.6;
}

/* ===== MODAL ===== */
.modal {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal--active { opacity: 1; visibility: visible; }
.modal__bg { position: absolute; inset: 0; background: rgba(14,26,43,0.7); backdrop-filter: blur(8px); }
.modal__box {
  position: relative; padding: 48px; text-align: center;
  max-width: 420px; width: 90%;
  transform: scale(0.92); transition: transform var(--transition);
}
.modal--active .modal__box { transform: scale(1); }
.modal__close { position: absolute; top: 14px; right: 14px; font-size: 1.5rem; color: var(--color-text-muted); }
.modal__icon { width: 60px; height: 60px; margin: 0 auto 16px; color: var(--color-accent); }
.modal__icon svg { width: 100%; height: 100%; }
.modal__box h3 { font-family: var(--font-display); font-size: 1.4rem; color: var(--color-white); margin-bottom: 8px; }
.modal__box p { color: var(--color-text-muted); font-size: 0.95rem; }

/* ===== REVEAL ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal--visible { opacity: 1; transform: translateY(0); }

/* ===== PARTICLES ===== */
.particle {
  position: absolute; border-radius: 50%;
  background: rgba(0, 229, 160, 0.3);
  animation: particleDrift linear infinite;
}

/* ===== KEYFRAMES ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scrollWheel { 0% { opacity: 1; transform: translateX(-50%) translateY(0); } 100% { opacity: 0; transform: translateX(-50%) translateY(12px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes particleDrift {
  0% { opacity: 0; transform: translateY(0) translateX(0); }
  15% { opacity: 0.5; }
  85% { opacity: 0.2; }
  100% { opacity: 0; transform: translateY(-100vh) translateX(40px); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__metrics { flex-direction: row; justify-content: flex-start; gap: 12px; }
  .hero__metric { min-width: auto; flex: 1; }
  .system__grid { grid-template-columns: 1fr 1fr; }
  .join__grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(14,26,43,0.97); backdrop-filter: blur(20px);
    flex-direction: column; align-items: center; justify-content: center; gap: 22px;
    opacity: 0; visibility: hidden; transition: all var(--transition);
  }
  .nav--open { opacity: 1; visibility: visible; }
  .nav__link { font-size: 1.2rem; color: var(--color-white); }
  .burger { display: flex; }
  .header__actions .btn--sm { display: none; }

  .hero__grid { padding-top: 130px; }
  .hero__metrics { flex-direction: column; gap: 10px; }
  .hero__metric { min-width: auto; }

  .experience__grid { grid-template-columns: 1fr; }
  .experience__card--hero { grid-column: span 1; aspect-ratio: 16/10; }

  .system__grid { grid-template-columns: 1fr; }
  .system__flow { flex-direction: column; gap: 8px; }
  .system__flow-arrow { transform: rotate(90deg); }

  .how__steps { padding-left: 50px; }
  .how__step-num { left: -50px; width: 40px; height: 40px; font-size: 0.85rem; }

  .review { padding: 28px 18px; }

  .join__grid { grid-template-columns: 1fr; }

  .section { padding: 70px 0; }

  .footer__inner { flex-direction: column; gap: 28px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; gap: 4px; }
}

@media (max-width: 480px) {
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }
  .hero__metrics { gap: 8px; }
  .form-row { grid-template-columns: 1fr; }
  .join__form { padding: 24px; }
}