/* ============================================================
   iSpring × AYACOM — Webinar landing
   System: light / corporate, red accent, Space Grotesk + Manrope
   ============================================================ */

:root {
  /* Accent */
  --red: #E11D2A;
  --red-dark: #B3121E;
  --red-700: #9E0E18;
  --red-soft: #FFF2F2;
  --red-tint: rgba(225, 29, 42, 0.10);
  --red-glow: rgba(225, 29, 42, 0.32);

  /* Ink / neutrals */
  --ink: #0D1117;
  --ink-2: #1B222C;
  --slate: #59636F;
  --slate-2: #828D99;
  --line: #E8EAEE;
  --line-strong: #D7DBE2;

  /* Surfaces */
  --bg: #FFFFFF;
  --bg-soft: #F6F7F9;
  --bg-soft-2: #F0F2F5;
  --card: #FFFFFF;

  /* Type */
  --font-display: "Space Grotesk", "Manrope", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "Space Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Shape */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(13, 17, 23, 0.04), 0 2px 8px rgba(13, 17, 23, 0.04);
  --shadow-md: 0 4px 14px rgba(13, 17, 23, 0.06), 0 12px 40px rgba(13, 17, 23, 0.07);
  --shadow-red: 0 14px 40px -10px var(--red-glow);

  --maxw: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

section { position: relative; }

/* ---------- Decorative ---------- */
.dotgrid {
  background-image: radial-gradient(rgba(13,17,23,0.07) 1px, transparent 1.4px);
  background-size: 26px 26px;
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Eyebrow / tags ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--red);
  display: inline-block;
}

.tag {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.tag .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--red);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  padding: 16px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--red);
  color: #fff;
  box-shadow: var(--shadow-red);
}
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); }
.btn-primary .arrow { transition: transform .18s ease; }
.btn-primary:hover .arrow { transform: translateX(4px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-sm { padding: 11px 20px; font-size: 14.5px; }
/* Register CTA shows a short label on mobile */
.reg-cta .reg-short { display: none; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand image-slot { display: block; }
.brand .x {
  color: var(--slate-2);
  font-size: 18px;
  font-weight: 300;
}
.logo-slot {
  border: none;
  background: transparent;
}
.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-shrink: 0;
}
.nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate);
  white-space: nowrap;
  transition: color .15s ease;
}
.nav a:hover { color: var(--ink); }
.header-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.brand { flex-shrink: 0; }
.brand img { flex-shrink: 0; }
.menu-toggle { display: none; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -8%, var(--red-soft), transparent 60%),
    linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
  border-bottom: 1px solid var(--line);
}
.hero .dotgrid {
  position: absolute; inset: 0; opacity: .55; z-index: 0;
  -webkit-mask-image: linear-gradient(180deg, #000 30%, transparent 92%);
          mask-image: linear-gradient(180deg, #000 30%, transparent 92%);
}
.hero-glow-1 { width: 460px; height: 460px; background: var(--red-glow); top: -120px; right: 4%; opacity: .5; }
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding-top: 78px;
  padding-bottom: 92px;
}
.hero h1 {
  font-size: 50px;
  font-weight: 700;
  margin: 22px 0 0;
}
.hero h1 .accent { color: var(--red); }
.hero-sub {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--slate);
  max-width: 560px;
  margin: 24px 0 0;
  font-weight: 500;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 0;
}
.meta-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 12px 18px;
  box-shadow: var(--shadow-sm);
}
.meta-pill .k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-2);
  display: block;
}
.meta-pill .v {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}
.meta-pill .ic {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: var(--red-soft);
  color: var(--red);
  border-radius: 10px;
  flex: none;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 36px 0 0;
  flex-wrap: wrap;
}
.hero-note {
  font-size: 14px;
  color: var(--slate-2);
  font-weight: 500;
}

/* ---- Hero ecosystem visual ---- */
.hero-visual {
  position: relative;
  width: 100%;
  max-width: 680px;
  margin-left: auto;
}
.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 60px rgba(13, 17, 23, 0.12));
}
/* Floating ecosystem badges around the visual */
.hv-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 14px 34px rgba(13, 17, 23, 0.14);
  animation: hv-float 5s ease-in-out infinite;
}
.hv-badge .ic {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--red-glow);
  color: var(--red);
  flex-shrink: 0;
}
.hv-txt { display: flex; flex-direction: column; line-height: 1.15; }
.hv-txt b { font-size: 14px; font-weight: 700; color: var(--ink); }
.hv-txt i { font-size: 11.5px; font-style: normal; color: var(--slate-2); font-weight: 500; }
.hv-badge-1 { top: 8%; left: -4%; animation-delay: 0s; }
.hv-badge-2 { top: 44%; right: -3%; animation-delay: 1.4s; }
.hv-badge-3 { bottom: 9%; left: 3%; animation-delay: 2.6s; }
@keyframes hv-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) {
  .hv-badge { animation: none; }
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-pad { padding: 96px 0; }
.section-pad.tight { padding: 76px 0; }
.section-head { max-width: 720px; }
.section-head.center { margin: 0 auto; text-align: center; }
.section-head h2 {
  font-size: clamp(30px, 3.6vw, 46px);
  margin: 16px 0 0;
}
.section-head p {
  color: var(--slate);
  font-size: 18px;
  margin: 18px 0 0;
  font-weight: 500;
}
.section-head.center .eyebrow { justify-content: center; }
.section-head.center.eyebrow-center { }

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg-soft); border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-copy p + p { margin-top: 20px; }
.about-copy p { color: var(--slate); font-size: 18px; font-weight: 500; }
.about-copy strong { color: var(--ink); font-weight: 700; }
.about-side {
  display: grid;
  gap: 14px;
}
.about-chip {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.about-chip .ic {
  width: 42px; height: 42px; flex: none;
  display: grid; place-items: center;
  border-radius: 11px;
  background: var(--red-soft); color: var(--red);
}
.about-chip h4 { font-size: 17px; font-weight: 600; }
.about-chip p { font-size: 14.5px; color: var(--slate); margin-top: 4px; }

/* ============================================================
   PROGRAM
   ============================================================ */
.prog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 54px;
}
.prog-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.prog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.prog-card .num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.1em;
}
.prog-card h3 { font-size: 23px; font-weight: 600; margin: 14px 0 18px; max-width: 90%; }
.prog-list { display: flex; flex-direction: column; gap: 0; }
.prog-list .item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--ink-2);
}
.prog-list .item .chk {
  width: 22px; height: 22px; flex: none;
  border-radius: 7px;
  background: var(--red-tint);
  color: var(--red);
  display: grid; place-items: center;
}
.prog-card .bg-glyph {
  position: absolute;
  right: -10px; top: -16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 120px;
  color: var(--bg-soft-2);
  z-index: 0;
  line-height: 1;
}
.prog-card > * { position: relative; z-index: 1; }

/* ============================================================
   AUDIENCE
   ============================================================ */
.audience { background: var(--ink); color: #fff; overflow: hidden; }
.audience .dotgrid { position: absolute; inset: 0; opacity: .25; background-image: radial-gradient(rgba(255,255,255,0.12) 1px, transparent 1.4px); z-index: 0; }
.audience .glow { background: var(--red-glow); width: 520px; height: 520px; bottom: -200px; left: -100px; opacity: .5; }
.audience .wrap { position: relative; z-index: 1; }
.audience .eyebrow { color: #FF6B6B; }
.audience .eyebrow::before { background: #FF6B6B; }
.audience .section-head h2 { color: #fff; }
.audience .section-head p { color: rgba(255,255,255,0.62); }
.aud-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 52px;
}
.aud-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-md);
  padding: 26px 22px;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.aud-card:hover { background: rgba(255,255,255,0.07); border-color: var(--red); transform: translateY(-4px); }
.aud-card .ic {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--red);
  display: grid; place-items: center;
  color: #fff;
  margin-bottom: 20px;
}
.aud-card h4 { font-size: 17px; font-weight: 600; color: #fff; line-height: 1.25; }

/* ============================================================
   BUSINESS VALUE
   ============================================================ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 54px;
}
.value-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-card .vnum {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate-2);
  font-weight: 700;
}
.value-card .ic {
  width: 48px; height: 48px;
  border-radius: 13px;
  background: var(--red-soft);
  color: var(--red);
  display: grid; place-items: center;
}
.value-card h4 { font-size: 19px; font-weight: 600; }
.value-card p { color: var(--slate); font-size: 15px; }

/* ============================================================
   SPEAKERS
   ============================================================ */
.speakers { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.spk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 54px;
}
.spk-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.spk-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-md);
  overflow: hidden;
  display: block;
}
.spk-card .role-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
  margin: 20px 0 8px;
}
.spk-card h4 { font-size: 21px; font-weight: 600; }
.spk-card .role { color: var(--ink-2); font-weight: 600; font-size: 15px; margin-top: 6px; }
.spk-card .bio { color: var(--slate); font-size: 14.5px; margin-top: 12px; }
.spk-badge {
  display:inline-flex; align-items:center; gap:8px;
  margin-top:16px; font-size:13px; color: var(--slate-2); font-weight:600;
  font-family: var(--font-mono);
}

/* Single-speaker layout */
.spk-solo {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: center;
  max-width: 820px;
  margin: 54px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.spk-solo-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--r-lg);
  overflow: hidden;
  display: block;
}
.spk-solo-body .role-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
  margin-bottom: 10px;
}
.spk-solo-body h4 { font-size: clamp(26px, 3vw, 34px); font-weight: 600; }
.spk-solo-body .role { color: var(--ink-2); font-weight: 600; font-size: 17px; margin-top: 8px; }
.spk-solo-body .bio { color: var(--slate); font-size: 16px; margin-top: 16px; max-width: 46ch; }

/* ============================================================
   REGISTRATION
   ============================================================ */
.register { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%); }
.reg-glow { background: var(--red-glow); width: 480px; height: 480px; top: -160px; left: 50%; transform: translateX(-50%); opacity: .35; }
.reg-card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.reg-left {
  padding: 52px 48px;
  background: linear-gradient(165deg, var(--ink) 0%, #161D27 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.reg-left .dotgrid { position:absolute; inset:0; opacity:.22; background-image: radial-gradient(rgba(255,255,255,0.13) 1px, transparent 1.4px); }
.reg-left > * { position: relative; z-index: 1; }
.reg-left .eyebrow { color: #FF6B6B; }
.reg-left .eyebrow::before { background: #FF6B6B; }
.reg-left h2 { color: #fff; font-size: clamp(28px, 3vw, 38px); margin-top: 16px; }
.reg-left p { color: rgba(255,255,255,0.66); font-size: 16px; margin-top: 18px; font-weight: 500; }
.reg-mini {
  margin-top: 32px;
  display: grid;
  gap: 14px;
}
.reg-mini .row { display: flex; align-items: center; gap: 13px; font-size: 15px; font-weight: 600; }
.reg-mini .row .ic { width: 34px; height: 34px; border-radius: 9px; background: rgba(255,255,255,0.08); display: grid; place-items: center; color: #FF6B6B; flex: none; }
.reg-right { padding: 48px; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-2);
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}
.field label .req { color: var(--red); }
.field input {
  font-family: var(--font-body);
  font-size: 15.5px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--bg-soft);
  color: var(--ink);
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
  width: 100%;
}
.field input::placeholder { color: var(--slate-2); }
.field input:focus {
  outline: none;
  border-color: var(--red);
  background: #fff;
  box-shadow: 0 0 0 4px var(--red-tint);
}
.form-foot {
  grid-column: 1 / -1;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-foot .btn-primary { width: 100%; padding: 17px; font-size: 17px; }
.form-consent { font-size: 13px; color: var(--slate-2); line-height: 1.5; }
.form-consent a { color: var(--red); font-weight: 600; }

/* Embedded Yandex registration form */
.ya-form { width: 100%; }
.ya-form iframe {
  width: 100%;
  min-height: 620px;
  border: 0;
  display: block;
}

/* ============================================================
   FOOTER / CONTACTS
   ============================================================ */
.footer { background: var(--ink); color: #fff; }
.footer-inner { padding-top: 72px; padding-bottom: 40px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer .logos { display: flex; align-items: center; gap: 18px; margin-bottom: 24px; }
.footer .logos .x { color: rgba(255,255,255,0.4); font-weight: 300; font-size: 18px; }
.footer .blurb { color: rgba(255,255,255,0.6); font-size: 15px; max-width: 320px; font-weight: 500; }
.footer h5 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin: 0 0 18px;
  font-weight: 700;
}
.footer .clist { display: grid; gap: 14px; }
.footer .clist a, .footer .clist span { color: rgba(255,255,255,0.82); font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 12px; transition: color .15s ease; }
.footer .clist a:hover { color: #fff; }
.footer .clist .ic { color: #FF6B6B; }
.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-bottom p { color: rgba(255,255,255,0.5); font-size: 14px; }
.footer-bottom a { color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 600; }
.footer-bottom a:hover { color: #fff; }
/* Footer sits on a dark background, so the logos get a white backdrop */
.logo-slot-dark {
  background: #fff;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 8px 14px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 460px; margin: 0 auto; }
  .hv-badge { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .aud-grid { grid-template-columns: repeat(3, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .spk-grid { grid-template-columns: repeat(2, 1fr); }
  .reg-card { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  /* Nav collapses into a hamburger dropdown */
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 20px 14px;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 14px 26px rgba(0,0,0,0.08);
  }
  .site-header.nav-open .nav { display: flex; }
  .nav a {
    font-size: 16px;
    padding: 14px 2px;
    border-bottom: 1px solid var(--line);
  }
  .nav a:last-child { border-bottom: none; }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
  }
  .header-cta .btn-ghost { display: none; }
  .header-cta { gap: 10px; }
  .reg-cta .reg-full { display: none; }
  .reg-cta .reg-short { display: inline; }
  .reg-cta { padding: 9px 15px; font-size: 13.5px; }
  .header-inner { height: 60px; gap: 10px; }
  .brand { gap: 8px; }
  .brand .x { font-size: 13px; }
  #logo-ayacom { width: 90px !important; height: 32px !important; }
  #logo-ispring { width: 100px !important; height: 32px !important; }
  .section-pad { padding: 64px 0; }
  .hero-inner { padding-top: 52px; padding-bottom: 64px; }
  .hero h1 { font-size: clamp(32px, 9vw, 44px); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-note { text-align: center; }
  .meta-pill { flex: 1 1 100%; }
  .prog-grid { grid-template-columns: 1fr; }
  .aud-grid { grid-template-columns: 1fr 1fr; }
  .value-grid { grid-template-columns: 1fr; }
  .spk-grid { grid-template-columns: 1fr; }
  .spk-solo { grid-template-columns: 1fr; gap: 24px; padding: 24px; text-align: center; }
  .spk-solo-photo { max-width: 240px; margin: 0 auto; aspect-ratio: 1 / 1; }
  .spk-solo-body .bio { margin-left: auto; margin-right: auto; }
  .form-grid { grid-template-columns: 1fr; }
  .reg-left { padding: 40px 28px; }
  .reg-right { padding: 32px 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .section-head h2 { font-size: clamp(26px, 7vw, 34px); }
}

@media (max-width: 420px) {
  .aud-grid { grid-template-columns: 1fr; }
  #logo-ayacom { width: 80px !important; height: 30px !important; }
  #logo-ispring { width: 90px !important; height: 30px !important; }
  .reg-cta { padding: 9px 13px; font-size: 13px; }
}

@media (max-width: 360px) {
  #logo-ayacom { width: 70px !important; height: 28px !important; }
  #logo-ispring { width: 78px !important; height: 28px !important; }
  .brand .x { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}