/* ============================================
   AI OpsFlow — Static Site Styles
   ============================================ */

:root {
  /* Brand */
  --c-deep: #0A1628;
  --c-deep-2: #0F1E3D;
  --c-deep-3: #142346;

  --c-blue: #2563EB;
  --c-blue-light: #3B82F6;
  --c-blue-dark: #1D4ED8;
  --c-indigo: #6366F1;
  --c-purple: #7C3AED;
  --c-cyan: #06B6D4;

  /* Neutral */
  --c-white: #FFFFFF;
  --c-bg: #F8FAFC;
  --c-bg-2: #F1F5F9;
  --c-border: #E2E8F0;
  --c-text: #0F172A;
  --c-text-2: #334155;
  --c-text-muted: #64748B;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10), 0 4px 8px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 48px rgba(37, 99, 235, 0.18);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --grad-brand: linear-gradient(135deg, #3B82F6 0%, #6366F1 50%, #7C3AED 100%);
  --grad-deep: linear-gradient(135deg, #0A1628 0%, #0F1E3D 50%, #142346 100%);
  --grad-cta: linear-gradient(135deg, #1E40AF 0%, #4338CA 50%, #6D28D9 100%);

  --nav-h: 72px;
}

/* ====== Reset ====== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }
body, h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ====== Layout ====== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  position: relative;
  padding: 96px 0;
  overflow: hidden;
}
.section--white { background: var(--c-white); }
.section--light { background: var(--c-bg); }
.section--gray  { background: var(--c-bg-2); }
.section--dark  { background: var(--c-deep); color: rgba(255,255,255,0.92); }

.section__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 400px at 15% 0%, rgba(59,130,246,0.18), transparent 60%),
    radial-gradient(700px 400px at 85% 100%, rgba(124,58,237,0.18), transparent 60%);
  pointer-events: none;
}

.section__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}
.section__head h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 12px 0 14px;
}
.section__head p {
  color: var(--c-text-muted);
  font-size: 17px;
}
.section__head--invert h2 { color: white; }
.section__head--invert p  { color: rgba(255,255,255,0.7); }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-blue);
  background: rgba(37, 99, 235, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
}
.eyebrow--invert {
  color: #93C5FD;
  background: rgba(147, 197, 253, 0.12);
}

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn svg { width: 18px; height: 18px; }
.btn--lg { padding: 14px 28px; font-size: 16px; border-radius: 14px; }

.btn--primary {
  color: white;
  background: var(--grad-brand);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(99, 102, 241, 0.45);
}

.btn--ghost {
  color: white;
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.04);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.45);
}

.btn--white {
  color: var(--c-blue-dark);
  background: white;
  box-shadow: var(--shadow-lg);
}
.btn--white:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); }

.btn--outline-light {
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}
.btn--outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.7);
}

/* ====== Navbar ====== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  height: var(--nav-h);
  background: transparent;
  transition: background .25s ease, box-shadow .25s ease, border-color .25s ease;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom-color: var(--c-border);
  box-shadow: 0 1px 0 rgba(15,23,42,0.04);
}
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav__logo {
  width: 36px;
  height: 36px;
  display: inline-flex;
  filter: drop-shadow(0 4px 10px rgba(59,130,246,0.35));
}
.nav__logo svg { width: 100%; height: 100%; }
.nav__name {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.nav__name strong {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: white;
  transition: color .2s;
}
.nav__name small {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.65);
  margin-top: 2px;
  transition: color .2s;
}
.nav.is-scrolled .nav__name strong { color: var(--c-deep); }
.nav.is-scrolled .nav__name small  { color: var(--c-text-muted); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav__links a {
  position: relative;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: color .2s, background .2s;
}
.nav__links a:hover {
  color: white;
  background: rgba(255,255,255,0.10);
}
.nav.is-scrolled .nav__links a {
  color: var(--c-text-2);
}
.nav.is-scrolled .nav__links a:hover {
  color: var(--c-blue);
  background: rgba(37,99,235,0.06);
}

.nav__cta { padding: 10px 20px; font-size: 14px; }

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: transform .25s, opacity .25s, background .2s;
}
.nav.is-scrolled .nav__toggle span { background: var(--c-deep); }
.nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ====== Hero ====== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + 24px);
  padding-bottom: 80px;
  background: var(--grad-deep);
  color: white;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.55;
}
.hero__glow--a {
  top: 10%;
  left: -10%;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(59,130,246,0.55), transparent 70%);
}
.hero__glow--b {
  bottom: 0;
  right: -8%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(124,58,237,0.5), transparent 70%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero__content { display: flex; flex-direction: column; gap: 24px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: #BFDBFE;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.3);
}
.badge--invert {
  color: white;
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.3);
}
.badge__dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #60A5FA;
}
.badge__dot::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: rgba(96,165,250,0.5);
  animation: ping 1.6s cubic-bezier(0,0,0.2,1) infinite;
}
.badge__dot--white { background: white; }
.badge__dot--white::before { background: rgba(255,255,255,0.5); }

.hero__title {
  font-size: clamp(36px, 5.6vw, 64px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.text-gradient {
  background: linear-gradient(135deg, #60A5FA 0%, #818CF8 50%, #C4B5FD 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(219, 234, 254, 0.85);
  max-width: 560px;
}
.hero__sub-en {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: #93C5FD;
  font-weight: 600;
  text-transform: uppercase;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 4px;
}
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 8px;
  color: rgba(219, 234, 254, 0.75);
  font-size: 14px;
}
.check { color: #60A5FA; margin-right: 6px; font-weight: 700; }

/* Hero flow card */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.flow {
  position: relative;
  width: 100%;
  max-width: 460px;
  padding: 28px 24px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(37,99,235,0.16), rgba(124,58,237,0.10));
  border: 1px solid rgba(255,255,255,0.10);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 20px 60px rgba(2,6,23,0.45);
}
.flow__title {
  text-align: center;
  margin-bottom: 18px;
}
.flow__title-en {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: #93C5FD;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.flow__title-zh {
  font-size: 13px;
  color: rgba(219,234,254,0.7);
}
.flow__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.flow__step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}
.flow__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 6px 14px rgba(0,0,0,0.25);
}
.flow__icon svg { width: 20px; height: 20px; }
.flow__icon--a { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.flow__icon--b { background: linear-gradient(135deg, #6366F1, #4F46E5); }
.flow__icon--c { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }
.flow__icon--d { background: linear-gradient(135deg, #06B6D4, #0EA5E9); }
.flow__label { font-size: 15px; font-weight: 700; color: white; }
.flow__desc  { font-size: 12px; color: rgba(219,234,254,0.65); margin-top: 2px; }
.flow__arrow {
  display: flex;
  justify-content: center;
  color: rgba(147,197,253,0.7);
  margin: 4px 0;
}
.flow__arrow svg { width: 20px; height: 20px; }
.flow__result {
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59,130,246,0.22), rgba(124,58,237,0.18));
  border: 1px solid rgba(96,165,250,0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.flow__result-label { font-weight: 700; color: white; }
.flow__result-sub   { color: rgba(219,234,254,0.7); font-size: 12px; margin-top: 2px; }
.flow__result-num {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, #60A5FA, #C4B5FD);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(15,30,61,0.85);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.35);
  animation: floatY 5s ease-in-out infinite;
}
.float-card--tl { top: -10px; right: -8px; }
.float-card--br { bottom: -10px; left: -8px; animation-delay: 1.5s; }
.float-card__icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.float-card__icon svg { width: 16px; height: 16px; }
.float-card__num { font-size: 14px; font-weight: 800; color: white; line-height: 1; }
.float-card__sub { font-size: 11px; color: rgba(219,234,254,0.6); margin-top: 3px; }

/* ====== Grid ====== */
.grid {
  display: grid;
  gap: 22px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ====== Pain cards ====== */
.card {
  background: white;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.25);
}
.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #EFF6FF, #EDE9FE);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 4px;
}
.card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-deep);
  letter-spacing: -0.005em;
}
.card p {
  color: var(--c-text-muted);
  font-size: 14.5px;
  line-height: 1.65;
}

/* ====== Solution modules ====== */
.module {
  position: relative;
  padding: 32px 26px 28px;
  border-radius: var(--radius-lg);
  background: white;
  border: 1px solid var(--c-border);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  overflow: hidden;
}
.module::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.module:hover::before { transform: scaleX(1); }
.module:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99,102,241,0.3);
}
.module__num {
  display: inline-block;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--c-blue);
  background: rgba(37,99,235,0.08);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.module h3 { font-size: 19px; font-weight: 700; color: var(--c-deep); margin-bottom: 8px; }
.module p  { color: var(--c-text-muted); font-size: 14.5px; line-height: 1.65; }

/* ====== Methodology steps ====== */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.steps::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(96,165,250,0.5), rgba(167,139,250,0.5), transparent);
}
.steps__item {
  position: relative;
  text-align: center;
  padding: 0 8px;
}
.steps__num {
  position: relative;
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: white;
  font-size: 22px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(59,130,246,0.45);
  border: 4px solid var(--c-deep);
  z-index: 1;
}
.steps__body { color: rgba(255,255,255,0.85); }
.steps__en {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: #93C5FD;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.steps__body h3 { font-size: 17px; font-weight: 700; color: white; margin-bottom: 8px; }
.steps__body p  { font-size: 13.5px; color: rgba(219,234,254,0.65); line-height: 1.6; }

/* ====== Services ====== */
.service {
  position: relative;
  padding: 32px;
  border-radius: var(--radius-xl);
  background: white;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.service:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(99,102,241,0.35);
}
.service--featured {
  border: 1px solid transparent;
  background:
    linear-gradient(white, white) padding-box,
    linear-gradient(135deg, #3B82F6, #7C3AED) border-box;
  box-shadow: 0 16px 36px rgba(99,102,241,0.18);
}
.service__tag {
  position: absolute;
  top: -12px;
  right: 24px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: white;
  background: var(--grad-brand);
  border-radius: 999px;
  box-shadow: 0 6px 14px rgba(99,102,241,0.4);
}
.service__icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 8px 20px rgba(37,99,235,0.25);
}
.service__icon svg { width: 26px; height: 26px; }
.service h3 { font-size: 20px; font-weight: 700; color: var(--c-deep); margin-bottom: 10px; }
.service > p { color: var(--c-text-muted); font-size: 15px; line-height: 1.65; margin-bottom: 18px; }
.service__list {
  border-top: 1px solid var(--c-border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service__list li {
  position: relative;
  padding-left: 24px;
  color: var(--c-text-2);
  font-size: 14px;
}
.service__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 7px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3B82F6, #7C3AED);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}
.service__list li::after {
  content: "";
  position: absolute;
  left: 4px; top: 10px;
  width: 6px; height: 3px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
}

/* ====== Use cases ====== */
.grid--cases { gap: 16px; }
.case {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 22px 20px;
  background: white;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.case:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.3);
}
.case__dot {
  flex-shrink: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  margin-top: 8px;
  background: var(--grad-brand);
  box-shadow: 0 0 0 4px rgba(99,102,241,0.12);
}
.case h4 { font-size: 16px; font-weight: 700; color: var(--c-deep); margin-bottom: 4px; }
.case p  { font-size: 14px; color: var(--c-text-muted); line-height: 1.55; }

/* ====== Why us ====== */
.why {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #F8FAFC 0%, white 100%);
  border: 1px solid var(--c-border);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.why:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.25);
}
.why__icon {
  font-size: 30px;
  width: 56px; height: 56px;
  background: linear-gradient(135deg, #DBEAFE, #EDE9FE);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.why h3 { font-size: 17px; font-weight: 700; color: var(--c-deep); margin-bottom: 8px; }
.why p  { font-size: 14.5px; color: var(--c-text-muted); line-height: 1.65; }

/* ====== CTA ====== */
.cta {
  position: relative;
  padding: 96px 0;
  overflow: hidden;
  color: white;
}
.cta__bg {
  position: absolute;
  inset: 0;
  background: var(--grad-cta);
}
.cta__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 25% 30%, rgba(255,255,255,0.10), transparent 60%),
    radial-gradient(500px 280px at 80% 75%, rgba(255,255,255,0.08), transparent 60%);
}
.cta__inner {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.cta h2 {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}
.cta p {
  max-width: 640px;
  font-size: 17px;
  color: rgba(219,234,254,0.85);
  line-height: 1.7;
}
.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 6px;
}
.cta__trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px;
  font-size: 14px;
  color: rgba(219,234,254,0.78);
  margin-top: 4px;
}

/* ====== Footer ====== */
.footer {
  background: var(--c-deep);
  color: rgba(219,234,254,0.7);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding: 64px 24px 32px;
}
.footer__brand .nav__name strong { color: white; }
.footer__brand .nav__name small  { color: rgba(147,197,253,0.7); }
.footer__desc {
  margin-top: 14px;
  font-size: 14px;
  color: rgba(219,234,254,0.55);
  line-height: 1.65;
  max-width: 360px;
}
.footer__cols { display: contents; }
.footer h4 {
  color: white;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.footer ul { display: flex; flex-direction: column; gap: 10px; }
.footer ul a {
  font-size: 14px;
  color: rgba(219,234,254,0.55);
  transition: color .2s;
}
.footer ul a:hover { color: #60A5FA; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
  color: rgba(219,234,254,0.4);
  letter-spacing: 0.04em;
}

/* ====== Reveal animation ====== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ====== Animations ====== */
@keyframes ping {
  0%   { transform: scale(0.6); opacity: 0.9; }
  80%, 100% { transform: scale(1.6); opacity: 0; }
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

/* ====== Responsive ====== */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__visual { order: 2; max-width: 480px; margin: 0 auto; }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }

  .steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .steps::before { display: none; }
  .steps__item { text-align: left; display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: flex-start; }
  .steps__num  { margin: 0; border-color: var(--c-deep-2); }

  .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }

  .nav__links {
    position: fixed;
    top: var(--nav-h);
    right: 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px;
    width: 220px;
    background: white;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px) scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
  }
  .nav__links.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }
  .nav__links a {
    width: 100%;
    color: var(--c-text-2) !important;
    background: transparent !important;
  }
  .nav__links a:hover {
    background: var(--c-bg) !important;
    color: var(--c-blue) !important;
  }
  .nav__cta { display: none; }
  .nav__toggle { display: inline-flex; }

  .hero { padding-top: calc(var(--nav-h) + 16px); padding-bottom: 64px; }
  .hero__title { font-size: clamp(32px, 9vw, 44px); }
  .hero__trust { gap: 14px; }

  .grid--4 { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--cases { gap: 12px; }

  .float-card--tl, .float-card--br { display: none; }

  .footer__inner { grid-template-columns: 1fr; padding: 48px 20px 24px; }
  .footer__bottom .container { flex-direction: column; }

  .cta__actions { flex-direction: column; width: 100%; }
  .cta__actions .btn { width: 100%; justify-content: center; }
}

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