@import "./tokens.css";

/* ===========================================
   Reset & Base
=========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Roboto", "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
               "Yu Gothic", sans-serif;
  color: var(--text-primary);
  background-color: var(--surface-invert);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, video {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===========================================
   Typography Scale
=========================================== */
.text-display {   /* 56px / Bold */
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.text-h1 {        /* 40px / Bold */
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.text-h2 {        /* 32px / Bold */
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
}
.text-h3 {        /* 24px / SemiBold */
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
}
.text-h4 {        /* 20px / SemiBold */
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.5;
}
.text-body-lg {   /* 18px / Regular */
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
}
.text-body {      /* 16px / Regular */
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
}
.text-body-sm {   /* 14px / Regular */
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.6;
}
.text-caption {   /* 12px / Regular */
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.5;
}

/* ===========================================
   Layout Utilities
=========================================== */
.container {
  width: 100%;
  max-width: 1160px; /* 内容幅 1080px + 左右padding 40px×2 */
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.container--wide {
  max-width: 1280px;
}

.container--narrow {
  max-width: 800px;
}

.section {
  padding-block: var(--spacing-4xl);
}

.section--sm {
  padding-block: var(--spacing-ls);
}

/* ===========================================
   Button Components
=========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-s) var(--spacing-ms);
  border: none;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

/* CTA Primary (Pink) */
.btn--cta-primary {
  background-color: var(--btn-cta-primary-bg);
  color: var(--text-invert);
}
.btn--cta-primary:hover {
  background-color: var(--btn-cta-primary-hover-bg);
}

/* CTA Secondary (Blue) */
.btn--cta-secondary {
  background-color: var(--btn-cta-secondary-bg);
  color: var(--text-invert);
}
.btn--cta-secondary:hover {
  background-color: var(--btn-cta-secondary-hover-bg);
}

/* Normal (Dark) */
.btn--normal {
  background-color: var(--btn-normal-bg);
  color: var(--text-invert);
}
.btn--normal:hover {
  background-color: var(--btn-normal-hover-bg);
}

/* Outline */
.btn--outline {
  background-color: transparent;
  border: 2px solid var(--border-primary);
  color: var(--text-primary);
}
.btn--outline:hover {
  border-color: var(--text-primary);
}

/* Sizes */
.btn--lg {
  padding: var(--spacing-s-half) var(--spacing-mx);
  font-size: 1.125rem;
}
.btn--sm {
  padding: var(--spacing-xs) var(--spacing-s);
  font-size: 0.875rem;
}

/* ===========================================
   Card Component
=========================================== */
.card {
  background: var(--surface-invert);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-s);
  padding: var(--spacing-ms);
}

.card--shadow {
  border: none;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

/* ===========================================
   Badge / Tag
=========================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xxs) var(--spacing-xs);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--primary {
  background-color: var(--color-blue-100);
  color: var(--color-blue-600);
}

.badge--secondary {
  background-color: var(--color-pink-100);
  color: var(--color-pink-600);
}

.badge--gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
}

/* ===========================================
   Divider
=========================================== */
.divider {
  border: none;
  border-top: 1px solid var(--border-primary);
  margin-block: var(--spacing-ms);
}

/* ===========================================
   FAQ Component
=========================================== */
.faq-section {
  background: var(--color-blue-200);
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-ms);
}
.faq-item {
  background: var(--surface-invert);
  border-radius: var(--radius-s);
  padding: var(--spacing-ms);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
.faq-q,
.faq-a {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-s);
}
.faq-a {
  margin-top: var(--spacing-s);
}
.faq-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  line-height: 1;
}
.faq-badge--q {
  background: var(--surface-primary);
  color: var(--text-invert);
}
.faq-badge--a {
  background: var(--surface-invert);
  border: 2px solid var(--surface-primary);
  color: var(--text-emphasize-primary);
}
.faq-q__text {
  font-weight: 700;
  color: var(--text-primary);
  padding-top: 0.3em;
}
.faq-a__text {
  color: var(--text-secondary);
  padding-top: 0.3em;
}
.faq-a__text a {
  color: var(--text-emphasize-primary);
  text-decoration: underline;
}

/* ===========================================
   Gradient Utilities
=========================================== */
.gradient-primary {
  background: linear-gradient(135deg, var(--color-blue-500), var(--color-pink-500));
}

.gradient-text-primary {
  background: linear-gradient(135deg, var(--color-blue-500), var(--color-pink-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===========================================
   Responsive Breakpoints
=========================================== */
/* Mobile: < 768px  (default) */
/* Tablet: 768px–   */
/* Desktop: 1024px– */

@media (max-width: 767px) {
  .text-display { font-size: 2.25rem; }
  .text-h1      { font-size: 1.875rem; }
  .text-h2      { font-size: 1.5rem; }
  .container    { padding-inline: var(--spacing-s); }
  .section      { padding-block: var(--spacing-ls); }
}