/* ========================
   CSS Custom Properties
   ======================== */
:root {
  --color-primary: #0C2A30;
  --color-primary-dark: #0C2A30;
  --color-bg-accent: #E3F2FD;
  --color-text: #0C2A30;
  --color-text-dark: #0C2A30;
  --color-white: #fff;
  --color-accent: #6CB4FF;
  --color-shadow: rgba(10, 60, 101, 0.09);
  --color-shadow-hover: rgba(10, 60, 101, 0.18);

  --font-body: "LINE Seed JP", sans-serif;

  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-full: 50px;

  --space-section: clamp(60px, 8vw, 100px);
  --transition: 0.3s;
}

/* ========================
   Responsive Utilities
   ======================== */
@media screen and (max-width: 767px) {
  .is-pc {
    display: none !important;
  }
}
@media screen and (min-width: 768px) {
  .is-sp {
    display: none !important;
  }
}

/* ========================
   Base
   ======================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  padding: 0;
  margin: 0;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
}

img {
  width: 100%;
  height: auto;
  pointer-events: none;
}

ul,
ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  opacity: 0.7;
}

/* ========================
   Layout
   ======================== */
.inner {
  max-width: 850px;
  margin: 0 auto;
  padding: 0 30px;
  box-sizing: content-box;
}
@media screen and (max-width: 767px) {
  .inner {
    padding: 0 20px;
  }
}

section {
  padding: var(--space-section) 0;
}

/* ========================
   Hero
   ======================== */
.hero {
  background: var(--color-bg-accent);
  padding: 73px 0 0;
}
@media screen and (max-width: 767px) {
  .hero {
    margin: 20px 20px 0;
    position: relative;
    border-radius: var(--radius-sm);
    padding: 39px 0 0;
  }
}

.hero__grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media screen and (max-width: 849.5px) and (min-width: 768px) {
  .hero__grid {
    gap: 1%;
  }
}
@media screen and (max-width: 767px) {
  .hero__grid {
    flex-direction: column;
    align-items: center;
  }
}

.hero__content {
  text-align: center;
  padding-right: 40px;
}
@media screen and (max-width: 767px) {
  .hero__content {
    padding-right: 0;
  }
}

.hero img {
  width: auto;
}

.hero__media {
  max-width: 400px;
}
.hero__media img {
  width: 100%;
}
@media screen and (max-width: 849.5px) and (min-width: 768px) {
  .hero__media {
    width: 51.4vw;
  }
}
@media screen and (max-width: 767px) {
  .hero__media {
    max-width: 300px;
    padding: 20px 0;
  }
}

.hero__title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
@media screen and (max-width: 767px) {
  .hero__title {
    font-size: 32px;
    letter-spacing: 3px;
  }
}

.hero__tagline {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 2px;
  line-height: 1.6;
  margin-top: 16px;
  margin-bottom: 12px;
}
@media screen and (max-width: 849.5px) and (min-width: 768px) {
  .hero__tagline {
    font-size: 18px;
  }
}
@media screen and (max-width: 767px) {
  .hero__tagline {
    font-size: 14px;
    letter-spacing: 2px;
    margin-top: 0;
  }
}

/* ========================
   App Intro
   ======================== */
.app-intro {
  text-align: center;
}

.app-intro__label {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 5.2px;
  line-height: 1.4;
  margin-bottom: 16px;
}
@media screen and (max-width: 767px) {
  .app-intro__label {
    font-size: 22px;
    letter-spacing: 3.2px;
  }
}

.app-intro__description {
  font-size: 20px;
  margin-bottom: 30px;
  letter-spacing: 3px;
  line-height: 1.8;
  color: var(--color-text-dark);
}
@media screen and (max-width: 767px) {
  .app-intro__description {
    letter-spacing: 2px;
    font-size: 16px;
  }
}

/* ========================
   Store Badges
   ======================== */
.store-badges {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: center;
}
@media screen and (max-width: 767px) {
  .store-badges {
    flex-direction: row;
    gap: 10px;
    flex-wrap: wrap;
  }
}
.store-badges a {
  display: inline-block;
  max-width: 191px;
}
@media screen and (max-width: 767px) {
  .store-badges a {
    max-width: 160px;
  }
}

/* ========================
   Footer
   ======================== */
.site-footer {
  text-align: center;
  padding: var(--space-section) 0 20px;
  background: var(--color-bg-accent);
}
@media screen and (max-width: 767px) {
  .site-footer {
    padding: 39px 0 20px;
  }
}
.site-footer img {
  width: auto;
}
.site-footer .store-badges {
  margin-top: 30px;
}
.site-footer .store-badges img {
  width: 100%;
}

/* ========================
   Page Header
   ======================== */
.page-header {
  text-align: center;
  padding: 80px 0 40px;
}
@media screen and (max-width: 767px) {
  .page-header {
    padding: 50px 0 30px;
  }
}

.page-header__label {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.page-header__title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 3px;
}
@media screen and (max-width: 767px) {
  .page-header__title {
    font-size: 22px;
    letter-spacing: 2px;
  }
}

/* ========================
   FAQ
   ======================== */
.faq {
  padding: 30px 0 var(--space-section);
}

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq__item {
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: 0px 0px 25px 0px var(--color-shadow);
  padding: 30px 40px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.faq__item:hover {
  transform: translateY(-2px);
  box-shadow: 0px 4px 35px 0px var(--color-shadow-hover);
}
@media screen and (max-width: 767px) {
  .faq__item {
    padding: 24px 20px;
  }
}

.faq__question {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.faq__question::before {
  content: "Q";
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  flex-shrink: 0;
}
@media screen and (max-width: 767px) {
  .faq__question {
    font-size: 16px;
  }
}

.faq__answer {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-dark);
  margin-top: 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.faq__answer::before {
  content: "A";
  font-size: 20px;
  font-weight: 800;
  color: var(--color-accent);
  flex-shrink: 0;
}
@media screen and (max-width: 767px) {
  .faq__answer {
    font-size: 15px;
  }
}

/* ========================
   Legal (Terms / Privacy)
   ======================== */
.legal {
  padding: 30px 0 var(--space-section);
}

.legal__content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-dark);
}

.legal__updated {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 40px;
}

.legal__content h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-top: 40px;
  margin-bottom: 12px;
}

.legal__content p {
  margin-bottom: 16px;
}

.legal__content ul {
  margin-bottom: 16px;
  padding-left: 24px;
  list-style: disc;
}

.legal__content li {
  margin-bottom: 8px;
}

@media screen and (max-width: 767px) {
  .legal__content {
    font-size: 15px;
  }
  .legal__content h2 {
    font-size: 18px;
    margin-top: 32px;
  }
}

.footer__nav {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__nav a {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
}

.footer__copy {
  font-size: 12px;
  color: var(--color-text-dark);
  font-weight: 700;
  letter-spacing: 2.4px;
  margin-top: 50px;
}