* {
  box-sizing: border-box;
}
html,
body {
  overflow-x: hidden;
}
:root {
  --su-ink: #0f1424;
  --su-mid: #0b1e3a;
  --su-indigo: #4b6bff;
  --su-magenta: #d54b8b;
  --su-coral: #ff7a59;
  --su-silver: #d7deea;
  --su-snow: #f6f8fc;
  --su-white: #fff;
  --su-ok: #14b8a6;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial;
  color: var(--su-ink);
  background: radial-gradient(
      1200px 400px at 10% -10%,
      rgba(75, 107, 255, 0.08),
      transparent 60%
    ),
    linear-gradient(180deg, #fcfdff 0%, var(--su-snow) 100%);
}

.su-nav {
  background: radial-gradient(
      900px 340px at 85% -20%,
      rgba(213, 75, 139, 0.15),
      transparent 60%
    ),
    linear-gradient(180deg, rgba(11, 30, 58, 0.9), rgba(11, 30, 58, 0.72));
  border-bottom: 1px solid rgba(75, 107, 255, 0.35);
  backdrop-filter: blur(10px);
}
.su-brand {
  color: #e9eeff !important;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.su-link {
  color: #dfe6ff !important;
  position: relative;
  padding: 0.5rem 0.75rem;
}
.su-link:hover {
  color: #fff !important;
}
.su-link::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--su-indigo), var(--su-magenta));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.su-link:hover::after,
.su-link.active::after {
  transform: scaleX(1);
}
.btn-su {
  --bs-btn-color: #fff;
  --bs-btn-bg: #4b6bff;
  --bs-btn-border-color: #4b6bff;
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: #3b57e6;
  --bs-btn-hover-border-color: #3b57e6;
  --bs-btn-active-bg: #3249c5;
  --bs-btn-active-border-color: #3249c5;
  --bs-btn-focus-shadow-rgb: 75, 107, 255;

  border: 0;
  border-radius: 14px;
  font-weight: 800;
  background-image: linear-gradient(90deg, var(--su-indigo), var(--su-magenta));
  box-shadow: 0 10px 30px rgba(75, 107, 255, 0.35);
}
.btn-su:hover {
  background-image: linear-gradient(90deg, #3956e6, #bd3f79);
}
.btn-su:active {
  background-image: linear-gradient(90deg, #3249c5, #a33769);
}

.btn-su-ol {
  --bs-btn-color: var(--su-indigo);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: var(--su-indigo);
  --bs-btn-hover-color: #2436aa;
  --bs-btn-hover-bg: rgba(75, 107, 255, 0.08);
  --bs-btn-hover-border-color: #2436aa;
  --bs-btn-active-bg: rgba(75, 107, 255, 0.16);
  --bs-btn-active-border-color: #1f2f88;
  --bs-btn-focus-shadow-rgb: 75, 107, 255;

  border-radius: 14px;
  font-weight: 800;
}

.su-hero {
  position: relative;
  overflow: hidden;
  color: #eef2ff;
  background: var(--su-mid);
  min-height: clamp(420px, 60vh, 720px);
}
.su-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(
      1200px 520px at -10% 0%,
      rgba(75, 107, 255, 0.35),
      transparent 60%
    ),
    radial-gradient(
      800px 380px at 110% 10%,
      rgba(213, 75, 139, 0.28),
      transparent 70%
    ),
    url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="1600" height="900"><defs><linearGradient id="g" x1="0" y1="0" x2="1" y2="1"><stop offset="0" stop-color="%234b6bff" stop-opacity="0.2"/><stop offset="1" stop-color="%23d54b8b" stop-opacity="0.2"/></linearGradient></defs><g fill="none" stroke="url(%23g)" stroke-width="1"><path d="M0 600 C300 540, 600 660, 900 600 S1500 560, 1600 620"/><path d="M0 300 C200 260, 500 380, 800 320 S1400 260, 1600 340"/></g></svg>')
      center/cover no-repeat,
    linear-gradient(
      180deg,
      rgba(11, 30, 58, 0.4) 0%,
      rgba(11, 30, 58, 0.9) 60%,
      rgba(11, 30, 58, 1) 100%
    );
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 980px;
}
.su-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(223, 230, 255, 0.5);
  background: rgba(223, 230, 255, 0.12);
  color: #f3f6ff;
  font-weight: 700;
}
.lead-hero {
  color: #e6ebff;
}
.su-section {
  padding: 96px 0;
}
.su-section.alt {
  background: var(--su-white);
}
.su-rule {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--su-silver),
    transparent
  );
}
.su-card {
  background: #fff;
  border: 1px solid rgba(15, 20, 36, 0.08);
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 20, 36, 0.08);
}
.su-ico {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(
    145deg,
    rgba(75, 107, 255, 0.14),
    rgba(213, 75, 139, 0.1)
  );
  color: #2a3adb;
  border: 1px solid rgba(75, 107, 255, 0.35);
}
.su-band {
  background: linear-gradient(
    90deg,
    rgba(75, 107, 255, 0.08),
    rgba(213, 75, 139, 0.08)
  );
  border: 1px dashed rgba(75, 107, 255, 0.35);
  border-radius: 16px;
}
.price {
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 900;
}
.su-tag {
  display: inline-block;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: rgba(21, 128, 61, 0.08);
  color: #0f5132;
  border: 1px solid rgba(21, 128, 61, 0.25);
  font-weight: 700;
  font-size: 0.85rem;
}
.su-signature {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: #0e1530;
  color: #eaf0ff;
}
.su-signature::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      900px 340px at -10% 10%,
      rgba(75, 107, 255, 0.2),
      transparent 60%
    ),
    radial-gradient(
      700px 300px at 110% 20%,
      rgba(255, 122, 89, 0.18),
      transparent 70%
    );
  z-index: 0;
}
.sig-img {
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}
.sig-bullet i {
  color: var(--su-ok);
}
.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(75, 107, 255, 0.25);
}
.su-footer {
  background: var(--su-mid);
  color: #e8eeff;
  border-top: 1px solid rgba(75, 107, 255, 0.35);
}
.su-footer a {
  color: #e8eeff;
  text-decoration: none;
}
.su-footer a:hover {
  color: #fff;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: all 0.5s ease;
  }
  .reveal.on {
    opacity: 1;
    transform: none;
  }
}