/* =========================
   SipLog LP — AppTheme Match
   FIX:
   - Header: fixed (always visible)
   - Anchor jump: scroll-padding-top
   - Footer: fixed (always visible)
   - Body padding for fixed header/footer
   ========================= */

:root {
  /* AppTheme (Flutter) */
  --bg: #0b0f0d;
  --surface: #0f1a24;
  --surface2: #111a16;
  --text: #e6e7e2;
  --muted: #8f948c;
  --divider: #1b2420;

  --brass: #d0a24a;
  --burnt: #c26a2e;
  --avoid: #8a4f3d;
  --neutral: #6f7c5c;

  --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  --radius: 18px;
  --radius2: 14px;
  --container: 1120px;

  /* fixed sizes */
  --header-h: 64px;
  --footer-h: 120px;

  /* anchor offset (header height + a little breathing room) */
  --anchor-offset: calc(var(--header-h) + 12px);
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}

/* Key fix for anchor navigation:
     when jumping to #features, the browser will keep this padding at the top */
html {
  scroll-padding-top: var(--anchor-offset);
}

/* Optional: smooth scrolling (can remove if you dislike) */
/* html{ scroll-behavior: smooth; } */

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto,
    "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(
      1200px 650px at 18% -10%,
      rgba(208, 162, 74, 0.18),
      transparent 60%
    ),
    radial-gradient(
      900px 520px at 92% 8%,
      rgba(194, 106, 46, 0.1),
      transparent 55%
    ),
    var(--bg);
  line-height: 1.6;

  /* Make room for fixed header & footer */
  padding-top: var(--header-h);
  padding-bottom: calc(var(--footer-h) + 24px);
}

a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  opacity: 0.92;
}

.skip {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip:focus {
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 12px;
  background: rgba(15, 26, 36, 0.9);
  border: 1px solid rgba(27, 36, 32, 0.8);
  border-radius: 12px;
  z-index: 9999;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

/* =========================
     Header (FIXED)
     ========================= */
.header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: var(--header-h);
  z-index: 1000;

  backdrop-filter: blur(10px);
  background: rgba(11, 15, 13, 0.82);
  border-bottom: 1px solid rgba(27, 36, 32, 0.75);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.brand__mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: rgba(15, 26, 36, 0.72);
  border: 1px solid rgba(27, 36, 32, 0.85);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.25);
}
.brand__name {
  font-size: 16px;
}
.brand--footer .brand__mark {
  box-shadow: none;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}
.nav__link {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}
.nav__link:hover {
  color: var(--text);
}

.header__cta {
  display: none;
}
@media (min-width: 860px) {
  .header__cta {
    display: inline-flex;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 14px;
  font-weight: 800;
  border: 1px solid transparent;
  letter-spacing: 0.2px;
  gap: 8px;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(
    180deg,
    rgba(208, 162, 74, 1),
    rgba(194, 106, 46, 1)
  );
  color: #0b0f0d;
  box-shadow: 0 18px 40px rgba(208, 162, 74, 0.15);
}
.btn--outline {
  background: transparent;
  border-color: rgba(208, 162, 74, 0.45);
  color: var(--text);
}
.btn--ghost {
  background: rgba(15, 26, 36, 0.72);
  border-color: rgba(27, 36, 32, 0.85);
  color: var(--text);
}
.btn--outline:hover {
  border-color: rgba(208, 162, 74, 0.7);
}
.btn--ghost:hover {
  border-color: rgba(208, 162, 74, 0.28);
}

/* =========================
     Sections / content
     ========================= */

.hero {
  position: relative;
  padding: 72px 0 22px;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
@media (min-width: 980px) {
  .hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 38px;
  }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(208, 162, 74, 0.22);
  background: rgba(15, 26, 36, 0.55);
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}
.badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: var(--brass);
  box-shadow: 0 0 0 6px rgba(208, 162, 74, 0.12);
}

.hero__title {
  margin: 14px 0 10px;
  font-size: 40px;
  line-height: 1.12;
  letter-spacing: -0.6px;
}
@media (min-width: 980px) {
  .hero__title {
    font-size: 52px;
  }
}
.accent {
  color: var(--brass);
  text-shadow: 0 18px 60px rgba(208, 162, 74, 0.16);
}
.hero__desc {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 58ch;
}
.hero__actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero__meta {
  margin-top: 16px;
  display: grid;
  gap: 8px;
}
.meta {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}
.meta__k {
  color: var(--text);
  font-weight: 800;
  background: rgba(15, 26, 36, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
  padding: 4px 8px;
  border-radius: 999px;
}

/* Mock */
.hero__mock {
  display: grid;
  place-items: center;
}
.mock {
  width: min(520px, 100%);
  border-radius: 26px;
  background: linear-gradient(
    180deg,
    rgba(15, 26, 36, 0.92),
    rgba(17, 26, 22, 0.86)
  );
  border: 1px solid rgba(27, 36, 32, 0.85);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.mock::before {
  content: "";
  position: absolute;
  inset: -120px -120px auto auto;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(208, 162, 74, 0.22),
    transparent 60%
  );
  filter: blur(2px);
}
.mock__top {
  padding: 16px 16px 10px;
  border-bottom: 1px solid rgba(27, 36, 32, 0.75);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mock__pill {
  width: 44%;
  height: 10px;
  border-radius: 999px;
  background: rgba(230, 231, 226, 0.06);
  border: 1px solid rgba(27, 36, 32, 0.75);
}
.mock__icons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(11, 15, 13, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}
.chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--brass);
  box-shadow: 0 0 0 5px rgba(208, 162, 74, 0.12);
}
.chip--neutral {
  border-color: rgba(111, 124, 92, 0.55);
}
.chip--avoid {
  border-color: rgba(138, 79, 61, 0.55);
}

.mock__list {
  padding: 14px;
  display: grid;
  gap: 12px;
}
.card {
  display: flex;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius2);
  background: rgba(15, 26, 36, 0.72);
  border: 1px solid rgba(27, 36, 32, 0.85);
}
.card__thumb {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(11, 15, 13, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
  color: var(--brass);
  font-size: 20px;
  flex: 0 0 auto;
}
.card__title {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
}
.card__meta {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}
.card__note {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--text);
  opacity: 0.94;
}
.mock__fab {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(
    180deg,
    rgba(208, 162, 74, 1),
    rgba(194, 106, 46, 1)
  );
  color: #0b0f0d;
  font-weight: 900;
  box-shadow: 0 18px 40px rgba(208, 162, 74, 0.15);
}

/* Glow behind hero */
.hero__glow {
  position: absolute;
  inset: auto 0 -240px 0;
  height: 340px;
  background: radial-gradient(
    closest-side at 50% 10%,
    rgba(208, 162, 74, 0.1),
    transparent 70%
  );
  pointer-events: none;
}

/* Strip */
.strip {
  padding: 16px 0 10px;
}
.strip__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
@media (min-width: 860px) {
  .strip__inner {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
}
.strip__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(27, 36, 32, 0.85);
  background: rgba(15, 26, 36, 0.55);
}
.strip__icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(27, 36, 32, 0.85);
  background: rgba(11, 15, 13, 0.55);
}
.strip__title {
  font-weight: 900;
}
.strip__desc {
  color: var(--muted);
  font-size: 13px;
}

/* Sections */
.section {
  padding: 72px 0;
}
.section--alt {
  background: linear-gradient(
    180deg,
    transparent,
    rgba(17, 26, 22, 0.45) 10%,
    rgba(17, 26, 22, 0.45) 90%,
    transparent
  );
  border-top: 1px solid rgba(27, 36, 32, 0.45);
  border-bottom: 1px solid rgba(27, 36, 32, 0.45);
}
.section__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}
.section__title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.3px;
}
.section__lead {
  margin: 0;
  color: var(--muted);
}

.grid3 {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 900px) {
  .grid3 {
    grid-template-columns: repeat(3, 1fr);
  }
}
.panel {
  padding: 16px;
  border-radius: var(--radius);
  background: rgba(15, 26, 36, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
}
.panel__icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(11, 15, 13, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
  color: var(--brass);
  margin-bottom: 10px;
}
.panel__title {
  margin: 0;
  font-weight: 900;
}
.panel__desc {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.callout {
  margin-top: 16px;
  padding: 16px;
  border-radius: 20px;
  background: linear-gradient(
    180deg,
    rgba(15, 26, 36, 0.6),
    rgba(17, 26, 22, 0.55)
  );
  border: 1px solid rgba(208, 162, 74, 0.18);
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.callout__icon {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(11, 15, 13, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
  color: var(--brass);
}
.callout__body {
  flex: 1 1 320px;
}
.callout__title {
  margin: 0;
  font-weight: 900;
}
.callout__desc {
  margin: 6px 0 0;
  color: var(--muted);
}

.steps {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.step {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius);
  background: rgba(15, 26, 36, 0.55);
  border: 1px solid rgba(27, 36, 32, 0.85);
}
.step__no {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(208, 162, 74, 0.14);
  border: 1px solid rgba(208, 162, 74, 0.22);
  color: var(--brass);
  font-weight: 900;
}
.step__title {
  margin: 0;
  font-weight: 900;
}
.step__desc {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.faq {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}
.faq__item {
  border-radius: var(--radius);
  border: 1px solid rgba(27, 36, 32, 0.85);
  background: rgba(15, 26, 36, 0.55);
  overflow: hidden;
}
.faq__q {
  cursor: pointer;
  padding: 14px 16px;
  font-weight: 900;
  list-style: none;
}
.faq__q::-webkit-details-marker {
  display: none;
}
.faq__a {
  padding: 0 16px 14px;
  color: var(--muted);
  font-size: 14px;
}

.cta {
  padding-bottom: calc(54px + var(--footer-h));
  border-top: 1px solid rgba(27, 36, 32, 0.65);
  background: radial-gradient(
      900px 420px at 20% 10%,
      rgba(208, 162, 74, 0.1),
      transparent 55%
    ),
    rgba(17, 26, 22, 0.35);
}
.cta__inner {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(208, 162, 74, 0.18);
  background: rgba(15, 26, 36, 0.55);
}
.cta__title {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.2px;
}
.cta__desc {
  margin: 6px 0 0;
  color: var(--muted);
}
.cta__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* =========================
     Footer (FIXED)
     ========================= */
.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--footer-h);
  z-index: 950;

  backdrop-filter: blur(10px);
  background: rgba(11, 15, 13, 0.82);
  border-top: 1px solid rgba(27, 36, 32, 0.75);
}

.footer__inner {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding-top: 14px;
}
.footer__note {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.footer__links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}
.footer__links a:hover {
  color: var(--text);
}

.footer__bottom {
  margin-top: 10px;
  color: rgba(143, 148, 140, 0.9);
  font-size: 12px;
  display: flex;
  justify-content: space-between;
}

/* If footer wraps on small screens, make it taller */
@media (max-width: 520px) {
  :root {
    --footer-h: 150px;
  }
  .footer__inner {
    align-items: flex-start;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

/* ===== Mobile nav: hamburger ===== */
.menuBtn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(15, 26, 36, 0.72);
  border: 1px solid rgba(27, 36, 32, 0.85);
  color: var(--text);
  gap: 4px;
  padding: 0;
  cursor: pointer;
  margin-left: auto;
}
.menuBtn__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  opacity: 0.85;
  border-radius: 999px;
}
.menuBtn:hover {
  border-color: rgba(208, 162, 74, 0.28);
}

/* dropdown panel */
.mobileMenu {
  position: fixed;
  top: var(--header-h);
  left: 12px;
  right: 12px;
  z-index: 980;
  border-radius: 18px;
  background: rgba(15, 26, 36, 0.92);
  border: 1px solid rgba(27, 36, 32, 0.85);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  padding: 10px;
  display: none;
}
.mobileMenu--open {
  display: block;
}

.mobileMenu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 12px;
  border-radius: 14px;
  color: var(--text);
  font-weight: 800;
}
.mobileMenu__link:hover {
  background: rgba(11, 15, 13, 0.45);
  border: 1px solid rgba(27, 36, 32, 0.55);
}

/* Mobile: hide the desktop nav, show hamburger */
@media (max-width: 760px) {
  .nav {
    display: none;
  }
  .menuBtn {
    display: inline-flex;
  }
}

/* Desktop: keep current nav, hide hamburger + dropdown */
@media (min-width: 761px) {
  .menuBtn {
    display: none;
  }
  .mobileMenu {
    display: none !important;
  }
}

/* Logo image (replaceable) */
.brand__logo {
  width: 20px;
  height: 20px;
  object-fit: contain;
  display: block;
}
.brand__fallback {
  display: none; /* imgが読み込めない時だけJSで表示 */
  width: 20px;
  height: 20px;
  place-items: center;
}
/* Spacer for legal pages to avoid fixed footer overlap */
.legal-spacer {
  height: calc(var(--footer-h) + 24px);
}