/* ============================================================
   ちゃたそplus LP — style.css v3
   ============================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* ---- Design tokens ---- */
:root {
  --ocean:    #1A6B9A;
  --ocean-d:  #0F4A6E;
  --ocean-l:  #3A8DBF;
  --sand:     #F4EFE4;
  --sand-d:   #E8E0D0;
  --coral:    #C45C3E;
  --coral-l:  #D97A5E;
  --green:    #2A5240;
  --green-l:  #3D7A5E;
  --sun:      #D4A820;
  --white:    #FFFFFF;
  --ink:      #1A1A1A;
  --ink-m:    #4A4A4A;
  --ink-l:    #7A7A7A;

  --font-serif: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-sans:  'Noto Sans JP', sans-serif;

  --radius-sm: 6px;
  --radius:    12px;
  --radius-lg: 24px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow:    0 4px 24px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.18);

  --nav-h: 60px;
  --sticky-h: 64px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  padding-bottom: var(--sticky-h);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--font-sans); cursor: pointer; border: none; background: none; }

/* ---- Utility ---- */
.section-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-label {
  font-family: var(--font-serif);
  font-size: clamp(11px, 2.5vw, 13px);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ocean-l);
  display: block;
  margin-bottom: 8px;
}
.section-heading {
  font-size: clamp(26px, 6vw, 42px);
  font-weight: 700;
  line-height: 1.3;
}
.section-sub {
  font-size: clamp(14px, 3.5vw, 16px);
  color: var(--ink-m);
  margin-top: 12px;
  line-height: 1.8;
}
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 20px;
  transition: background .3s, box-shadow .3s;
}
#header.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
.header-logo-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--white);
  transition: color .3s;
  letter-spacing: .03em;
}
#header.scrolled .header-logo-name { color: var(--ocean-d); }
.header-order-btn {
  display: none;
  background: var(--coral);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .03em;
  transition: background .2s, transform .1s;
}
.header-order-btn:hover { background: var(--coral-l); transform: translateY(-1px); }
#header.scrolled .header-order-btn { display: block; }
.hamburger {
  width: 36px; height: 36px;
  display: flex; flex-direction: column;
  justify-content: center; gap: 6px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: background .3s, transform .3s, opacity .3s;
}
#header.scrolled .hamburger span { background: var(--ink); }
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,35,55,.97);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--white);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .08em;
  transition: color .2s;
}
.mobile-menu a:hover { color: var(--sun); }
.mobile-menu-order {
  background: var(--coral) !important;
  padding: 14px 40px !important;
  border-radius: 100px;
  color: var(--white) !important;
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/hero.jpg') center / cover no-repeat;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(10,40,65,.72) 0%,
    rgba(15,60,90,.55) 50%,
    rgba(20,30,20,.40) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 120px 24px 100px;
  max-width: 640px;
}
.hero-eyebrow {
  font-family: var(--font-serif);
  font-size: clamp(12px, 3vw, 15px);
  letter-spacing: .25em;
  color: rgba(255,255,255,.75);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(36px, 10vw, 64px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero-title span { color: var(--sun); }
.hero-desc {
  font-size: clamp(14px, 3.5vw, 17px);
  color: rgba(255,255,255,.88);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-hours {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(6px);
  border-radius: 100px;
  padding: 8px 18px;
  font-size: 13px;
  color: rgba(255,255,255,.9);
  margin-bottom: 36px;
  letter-spacing: .04em;
}
.hero-hours-dot {
  width: 6px; height: 6px;
  background: var(--sun);
  border-radius: 50%;
  flex-shrink: 0;
}
.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--coral);
  color: var(--white);
  padding: 16px 32px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  box-shadow: 0 4px 20px rgba(196,92,62,.5);
  transition: background .2s, transform .15s, box-shadow .2s;
}
.btn-primary:hover {
  background: var(--coral-l);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(196,92,62,.55);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.4);
  color: var(--white);
  padding: 14px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(4px);
  transition: background .2s;
}
.btn-ghost:hover { background: rgba(255,255,255,.25); }
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.5);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%,100% { opacity: .5; }
  50% { opacity: 1; }
}

/* ---- Wave divider ---- */
.wave-divider {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.wave-divider svg { display: block; width: 100%; }

/* ============================================================
   ABOUT
   ============================================================ */
#about {
  background: var(--white);
  padding: 80px 0 60px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-lg);
}
.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.about-img:hover img { transform: scale(1.03); }
.about-text .section-heading { color: var(--ocean-d); }
.about-body {
  margin-top: 20px;
  font-size: 15px;
  color: var(--ink-m);
  line-height: 2;
}
.about-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.about-tag {
  background: var(--sand);
  color: var(--ocean-d);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .03em;
}

/* ============================================================
   WHY
   ============================================================ */
#why {
  background: var(--ocean-d);
  padding: 80px 0;
}
#why .section-label { color: rgba(255,255,255,.5); }
#why .section-heading { color: var(--white); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 20px;
  margin-top: 48px;
}
.why-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  transition: background .25s, transform .2s;
}
.why-card:hover {
  background: rgba(255,255,255,.1);
  transform: translateY(-3px);
}
.why-icon {
  width: 44px; height: 44px;
  background: var(--sun);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.why-icon svg {
  width: 22px; height: 22px;
  stroke: var(--green);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.why-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.4;
}
.why-card-body {
  font-size: 13px;
  color: rgba(255,255,255,.6);
  line-height: 1.7;
}

/* ============================================================
   MENU
   ============================================================ */
#menu {
  background: var(--sand);
  padding: 80px 0;
}
#menu .section-heading { color: var(--ocean-d); }
.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}
@media (min-width: 640px) { .menu-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .menu-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; } }
.menu-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}
.menu-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.menu-card-img {
  aspect-ratio: 1/1;
  overflow: hidden;
}
.menu-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.menu-card:hover .menu-card-img img { transform: scale(1.06); }
.menu-card-body { padding: 12px 14px; }
.menu-card-badge {
  display: inline-block;
  background: var(--coral);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  letter-spacing: .05em;
}
.menu-card-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.menu-card-note {
  font-size: 12px;
  color: var(--ink-l);
  margin-top: 4px;
}
.menu-cta {
  text-align: center;
  margin-top: 40px;
}
.btn-ocean {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ocean);
  color: var(--white);
  padding: 16px 36px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  box-shadow: 0 4px 20px rgba(26,107,154,.35);
  transition: background .2s, transform .15s;
}
.btn-ocean:hover { background: var(--ocean-l); transform: translateY(-2px); }

/* ============================================================
   STEPS
   ============================================================ */
#steps {
  background: var(--white);
  padding: 80px 0;
}
#steps .section-heading { color: var(--ink); }
.steps-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 48px;
}
@media (min-width: 640px) {
  .steps-list { grid-template-columns: repeat(3, 1fr); }
}
.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 0 0 40px;
}
@media (min-width: 640px) {
  .step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 20px;
  }
}
.step-num-wrap {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.step-num {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--ocean);
  color: var(--white);
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-vline {
  flex: 1;
  width: 2px;
  background: var(--sand-d);
  margin: 8px 0;
  min-height: 40px;
}
.step-item:last-child .step-vline { display: none; }
@media (min-width: 640px) {
  .step-num-wrap { flex-direction: row; width: 100%; justify-content: center; }
  .step-vline { display: none; }
}
.step-content { padding-top: 4px; }
@media (min-width: 640px) { .step-content { padding-top: 20px; } }
.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ocean-d);
  margin-bottom: 6px;
}
.step-body {
  font-size: 14px;
  color: var(--ink-m);
  line-height: 1.7;
}

/* ============================================================
   LINE
   ============================================================ */
#line-section {
  background: linear-gradient(135deg, var(--green) 0%, #1A3A2A 100%);
  padding: 80px 0;
  text-align: center;
}
.line-inner { max-width: 560px; margin: 0 auto; padding: 0 20px; }
.line-icon {
  width: 64px; height: 64px;
  background: #06C755;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}
.line-icon svg { width: 38px; height: 38px; }
.line-section-title {
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.line-desc {
  font-size: 15px;
  color: rgba(255,255,255,.75);
  line-height: 1.8;
  margin-bottom: 32px;
}
.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #06C755;
  color: var(--white);
  padding: 16px 40px;
  border-radius: 100px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .04em;
  box-shadow: 0 4px 20px rgba(6,199,85,.4);
  transition: background .2s, transform .15s;
}
.btn-line:hover { background: #08e060; transform: translateY(-2px); }

/* ============================================================
   INSTAGRAM
   ============================================================ */
#instagram {
  background: var(--sand);
  padding: 80px 0;
}
#instagram .section-heading { color: var(--ink); }
.instagram-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
@media (max-width: 640px) {
  .instagram-grid { grid-template-columns: 1fr; }
}

/* ---- Instagram card ---- */
.ig-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  text-decoration: none;
  color: inherit;
}
.ig-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.ig-card-img {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--sand-d);
}
.ig-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.ig-card:hover .ig-card-img img { transform: scale(1.06); }
.ig-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,35,55,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .25s;
}
.ig-card:hover .ig-card-overlay { opacity: 1; }
.ig-card-overlay svg {
  width: 36px; height: 36px;
  stroke: white;
  fill: none;
  stroke-width: 1.5;
}
.ig-card-body {
  padding: 14px 16px;
}
.ig-card-caption {
  font-size: 13px;
  color: var(--ink-m);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.ig-card-date {
  font-size: 11px;
  color: var(--ink-l);
  letter-spacing: .04em;
}

/* ---- Instagram fallback ---- */
.ig-fallback {
  text-align: center;
  padding: 48px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--sand-d);
  margin-top: 40px;
  color: var(--ink-l);
  font-size: 14px;
  line-height: 1.8;
}

/* ---- Loading skeleton ---- */
.ig-skeleton {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.ig-skeleton-img {
  aspect-ratio: 1 / 1;
  background: linear-gradient(90deg, var(--sand) 25%, var(--sand-d) 50%, var(--sand) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
.ig-skeleton-body { padding: 14px 16px; }
.ig-skeleton-line {
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--sand) 25%, var(--sand-d) 50%, var(--sand) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  margin-bottom: 8px;
}
.ig-skeleton-line.short { width: 60%; }
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.instagram-cta {
  text-align: center;
  margin-top: 32px;
}
.btn-insta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #833AB4, #E1306C, #F77737);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .03em;
  transition: opacity .2s, transform .15s;
  box-shadow: 0 4px 16px rgba(225,48,108,.3);
}
.btn-insta:hover { opacity: .88; transform: translateY(-2px); }

/* ============================================================
   STORE INFO
   ============================================================ */
#store {
  background: var(--white);
  padding: 80px 0;
}
.store-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.store-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}
.store-img img { width: 100%; height: 100%; object-fit: cover; }
.store-map {
  border-radius: var(--radius);
  overflow: hidden;
  height: 240px;
  background: var(--sand);
  border: 2px dashed var(--sand-d);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--ink-l);
  margin-bottom: 16px;
  text-align: center;
  line-height: 1.8;
}
.store-map iframe { width: 100%; height: 100%; border: none; }
.store-info-row {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--sand-d);
  font-size: 14px;
}
.store-info-row:last-child { border-bottom: none; }
.store-info-label {
  font-weight: 700;
  color: var(--ocean-d);
  flex-shrink: 0;
  width: 60px;
  padding-top: 2px;
}
.store-info-val { color: var(--ink-m); line-height: 1.7; }
.btn-map {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid var(--ocean);
  color: var(--ocean);
  padding: 10px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  margin-top: 16px;
  transition: background .2s, color .2s;
}
.btn-map:hover { background: var(--ocean); color: var(--white); }

/* ============================================================
   FINAL CTA
   ============================================================ */
#final-cta {
  background: url('images/hero.jpg') center / cover no-repeat;
  position: relative;
  padding: 100px 0;
  text-align: center;
}
#final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,35,55,.78);
}
.final-cta-inner {
  position: relative;
  z-index: 1;
  padding: 0 20px;
}
.final-cta-title {
  font-size: clamp(28px, 7vw, 48px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 16px;
}
.final-cta-title span { color: var(--sun); }
.final-cta-sub {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  margin-bottom: 40px;
}
.final-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--ink);
  padding: 48px 20px 32px;
  text-align: center;
}
.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}
.footer-logo img {
  width: 40px; height: 40px;
  object-fit: contain;
  filter: brightness(0) invert(1) opacity(.6);
}
.footer-logo-name {
  font-size: 16px;
  font-weight: 700;
  color: rgba(255,255,255,.7);
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 24px;
}
.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  transition: color .2s;
}
.footer-links a:hover { color: rgba(255,255,255,.8); }
.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,.25);
  letter-spacing: .05em;
}

/* ============================================================
   STICKY BOTTOM NAV
   ============================================================ */
#sticky-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 -1px 0 rgba(0,0,0,.1), 0 -4px 20px rgba(0,0,0,.08);
  height: var(--sticky-h);
  transform: translateY(100%);
  transition: transform .35s ease;
}
#sticky-nav.visible { transform: translateY(0); }
.sticky-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-m);
  transition: background .15s;
  border-right: 1px solid rgba(0,0,0,.06);
}
.sticky-btn:last-child { border-right: none; }
.sticky-btn:active { background: rgba(0,0,0,.04); }
.sticky-btn svg { width: 20px; height: 20px; stroke-width: 2; }
.sticky-btn.order {
  background: var(--coral);
  color: var(--white);
}
.sticky-btn.line-btn { color: #06C755; }
.sticky-btn.insta-btn { color: #C13584; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-img { aspect-ratio: 16/9; }
  .store-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  .hamburger { display: none; }
  .header-order-btn { display: block !important; }
}