/* ============================================================
   はなの芽 — Common Styles
   CSS変数, リセット, アニメーション, ヘッダー, フッター, ボタン
   ============================================================ */

/* ----- Design Tokens ----- */
:root {
  --green-light: #e8f5e2;
  --green-base: #d4edcb;
  --green-mid: #8bc58b;
  --green-dark: #5a9e5a;
  --green-accent: #3d7a3d;
  --yellow-warm: #fff9e6;
  --yellow-accent: #ffd966;
  --pink-soft: #f7d6e0;
  --pink-accent: #e8a0b8;
  --orange-warm: #f4a460;
  --brown-soft: #8b6914;
  --brown-dark: #5c4a1e;
  --text-main: #3a3a2a;
  --text-sub: #6b6b5a;
  --white: #fff;
  --bg-cream: #fdfcf5;
  --shadow-soft: 0 4px 20px rgba(90, 158, 90, 0.12);
  --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.08);
  --radius: 20px;
  --radius-sm: 12px;

  --header-height: 64px;
  --font-body: 'Zen Maru Gothic', 'Hiragino Maru Gothic Pro', sans-serif;
  --font-en: 'Quicksand', sans-serif;
  --font-accent: 'Caveat', cursive;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background: var(--bg-cream);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.8;
  font-size: 16px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s;
}

ul, ol {
  list-style: none;
}

/* ----- Keyframe Animations ----- */
@keyframes floatY {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(5deg); }
}

@keyframes floatButterfly {
  0%, 100% { transform: translate(0, 0) rotate(-3deg); }
  25% { transform: translate(8px, -10px) rotate(4deg); }
  50% { transform: translate(-4px, -16px) rotate(-2deg); }
  75% { transform: translate(6px, -6px) rotate(5deg); }
}

@keyframes ladybugWalk {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(10px) rotate(8deg); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.85); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-2deg); }
  50% { transform: rotate(2deg); }
}

@keyframes petalFall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* ----- Decorative Floating Elements ----- */
.deco-float {
  position: absolute;
  pointer-events: none;
  z-index: 2;
}

.deco-section {
  position: relative;
  overflow: hidden;
}


/* ----- Section Headings (English + Japanese) ----- */
.section-heading {
  text-align: center;
  margin-bottom: 40px;
}

.section-heading .en {
  font-family: var(--font-en);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--green-accent);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}

.section-heading .jp {
  font-size: clamp(0.85rem, 2vw, 1rem);
  color: var(--text-sub);
  font-weight: 500;
  letter-spacing: 0.15em;
}

.section-heading .line {
  display: block;
  width: 50px;
  height: 3px;
  background: var(--green-mid);
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ----- Buttons ----- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--green-accent);
  color: var(--white);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 16px 36px;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(61, 122, 61, 0.3);
  transition: all 0.3s;
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(61, 122, 61, 0.4);
  opacity: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--white);
  color: var(--green-accent);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  border: 2.5px solid var(--green-mid);
  transition: all 0.3s;
  font-family: var(--font-body);
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--green-light);
  transform: translateY(-2px);
  opacity: 1;
}

/* ----- Scroll Reveal ----- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================================
   Header
   ============================================================ */
.hananome-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(232, 245, 226, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--green-mid);
  height: var(--header-height);
  transition: background 0.3s, box-shadow 0.3s;
}

.hananome-header.scrolled {
  background: rgba(232, 245, 226, 0.98);
  box-shadow: 0 2px 16px rgba(90, 158, 90, 0.15);
}

.hananome-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hananome-header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.hananome-header__logo-icon {
  flex-shrink: 0;
}

.hananome-header__logo-en {
  font-family: var(--font-accent);
  font-size: 1.6rem;
  color: var(--green-accent);
  font-weight: 700;
  line-height: 1;
  display: block;
}

.hananome-header__logo-jp {
  font-size: 0.65rem;
  color: var(--text-sub);
  letter-spacing: 0.1em;
  display: block;
}

/* Desktop Nav */
.hananome-header__nav {
  display: none;
}

.hananome-header__nav-list {
  display: flex;
  gap: 4px;
}

.hananome-header__nav-list li a {
  font-size: 0.75rem;
  color: var(--green-accent);
  padding: 8px 12px;
  border-radius: 8px;
  transition: background 0.2s;
  font-weight: 500;
  white-space: nowrap;
}

.hananome-header__nav-list li a:hover {
  background: var(--green-base);
  opacity: 1;
}

/* Hamburger */
.hananome-header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.hananome-header__hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--green-accent);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

.hananome-header__hamburger.is-active .hananome-header__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hananome-header__hamburger.is-active .hananome-header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.hananome-header__hamburger.is-active .hananome-header__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.hananome-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.hananome-mobile-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.hananome-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  height: 100dvh;
  background: var(--white);
  z-index: 95;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.hananome-mobile-menu.is-active {
  transform: translateX(0);
}

.hananome-mobile-menu__inner {
  padding: calc(var(--header-height) + 24px) 28px 40px;
}

.hananome-mobile-menu__list {
  margin-bottom: 32px;
}

.hananome-mobile-menu__list li {
  border-bottom: 1px solid var(--green-light);
}

.hananome-mobile-menu__list li a {
  display: block;
  padding: 16px 4px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  transition: color 0.2s, padding-left 0.2s;
}

.hananome-mobile-menu__list li a:hover {
  color: var(--green-accent);
  padding-left: 12px;
  opacity: 1;
}

.hananome-mobile-menu__cta {
  display: block;
  text-align: center;
  background: var(--green-accent);
  color: var(--white);
  font-weight: 700;
  padding: 14px;
  border-radius: 50px;
  font-size: 0.95rem;
}

/* ============================================================
   Footer
   ============================================================ */
.hananome-footer {
  background: var(--green-accent);
  color: var(--white);
  padding: 40px 24px 28px;
  text-align: center;
}

.hananome-footer__inner {
  max-width: 800px;
  margin: 0 auto;
}

.hananome-footer__logo {
  font-family: var(--font-accent);
  font-size: 1.8rem;
  margin-bottom: 4px;
}

.hananome-footer__tagline {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-bottom: 20px;
}

.hananome-footer__sns {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;
}

.hananome-footer__sns a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background 0.2s;
}

.hananome-footer__sns a:hover {
  background: rgba(255, 255, 255, 0.3);
  opacity: 1;
}

.hananome-footer__nav-list {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hananome-footer__nav-list li a {
  color: var(--white);
  font-size: 0.75rem;
  opacity: 0.85;
  transition: opacity 0.2s;
}

.hananome-footer__nav-list li a:hover {
  opacity: 1;
}

.hananome-footer__copy {
  font-size: 0.65rem;
  opacity: 0.6;
  font-family: var(--font-en);
}

/* ============================================================
   Responsive — Desktop (960px+)
   ============================================================ */
@media (min-width: 960px) {
  .hananome-header__nav {
    display: block;
  }

  .hananome-header__hamburger {
    display: none;
  }
}