/* =========================================================
   エリクズカウンセリングルーム / Erick's Counseling Room
   Theme: 澄んだ水色 (clear light-blue)
   ========================================================= */

:root {
  --aqua-50:  #f2fbff;
  --aqua-100: #e3f6fd;
  --aqua-200: #c4ecf9;
  --aqua-300: #9bdcf3;
  --aqua-400: #6cc7ea;
  --aqua-500: #3aa9e0;   /* primary */
  --aqua-600: #2b8fc4;
  --aqua-700: #216f9c;
  --ink:      #234a5c;   /* text on light */
  --ink-soft: #4d6b78;
  --white:    #ffffff;
  --shadow:   0 10px 30px rgba(58, 169, 224, 0.15);
  --shadow-sm: 0 4px 14px rgba(58, 169, 224, 0.12);
  --radius:   18px;
  --radius-sm: 12px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--ink);
  line-height: 1.8;
  background: linear-gradient(180deg, var(--aqua-50) 0%, #ffffff 40%, var(--aqua-50) 100%);
  -webkit-font-smoothing: antialiased;
}

.container { width: min(92%, var(--maxw)); margin-inline: auto; }

h1, h2, h3 { line-height: 1.4; margin: 0; }

a { color: var(--aqua-600); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--aqua-400), var(--aqua-600));
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { box-shadow: var(--shadow); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--aqua-700);
  border: 1.5px solid var(--aqua-300);
}
.btn-block { width: 100%; text-align: center; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--aqua-100);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 70px;
}
.brand { display: flex; align-items: center; gap: .7rem; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { display: grid; place-items: center; filter: drop-shadow(0 4px 8px rgba(58,169,224,.25)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-jp { font-weight: 700; font-size: 1.02rem; letter-spacing: .02em; }
.brand-en {
  font-family: "Quicksand", sans-serif;
  font-size: .72rem;
  color: var(--aqua-600);
  letter-spacing: .06em;
}

/* Nav */
.site-nav ul {
  display: flex;
  gap: .3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  display: block;
  padding: .55rem 1rem;
  border-radius: 999px;
  color: var(--ink);
  font-weight: 500;
  transition: background .2s, color .2s;
}
.site-nav a:hover { background: var(--aqua-100); color: var(--aqua-700); text-decoration: none; }

/* Mobile burger */
.nav-toggle { display: none; }
.nav-burger { display: none; cursor: pointer; width: 44px; height: 40px; position: relative; }
.nav-burger span {
  position: absolute; left: 9px; right: 9px; height: 2.5px; border-radius: 3px;
  background: var(--aqua-700); transition: .25s;
}
.nav-burger span:nth-child(1) { top: 13px; }
.nav-burger span:nth-child(2) { top: 19px; }
.nav-burger span:nth-child(3) { top: 25px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(242,251,255,0.55) 0%, rgba(227,246,253,0.45) 45%, rgba(255,255,255,0.80) 100%),
    url("images/hero-calm.jpg") center 60% / cover no-repeat;
  padding: clamp(4.5rem, 10vw, 8rem) 0 clamp(5rem, 11vw, 8.5rem);
}
.hero-waves {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 90px;
  background:
    radial-gradient(60px 60px at 20% 0, transparent 58%, rgba(255,255,255,.9) 60%),
    radial-gradient(60px 60px at 50% 0, transparent 58%, rgba(255,255,255,.9) 60%),
    radial-gradient(60px 60px at 80% 0, transparent 58%, rgba(255,255,255,.9) 60%);
  background-color: transparent;
  opacity: .8;
}
.hero-inner { position: relative; text-align: center; }
.hero-eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: .35rem 1rem;
  background: #fff;
  border: 1px solid var(--aqua-200);
  border-radius: 999px;
  color: var(--aqua-600);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .04em;
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: clamp(1.9rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--aqua-700);
  letter-spacing: .01em;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 16px rgba(255, 255, 255, 0.85), 0 1px 2px rgba(255, 255, 255, 0.9);
}
.hero-lead {
  color: var(--ink);
  font-size: 1.05rem;
  margin: 0 auto 2rem;
  max-width: 40rem;
  text-shadow: 0 1px 10px rgba(255, 255, 255, 0.9);
}

/* Section accent images */
.section-figure {
  margin: 0 auto 2.4rem;
  max-width: 880px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 4px solid #fff;
}
.section-figure img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.section-figure figcaption {
  background: #fff;
  color: var(--ink-soft);
  font-size: .82rem;
  text-align: center;
  padding: .5rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== Features ===== */
.features { margin-top: -2.5rem; position: relative; z-index: 2; padding-bottom: 1rem; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--aqua-100);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feature-icon { font-size: 2.2rem; }
.feature-card h3 { color: var(--aqua-700); margin: .6rem 0 .4rem; font-size: 1.15rem; }
.feature-card p { color: var(--ink-soft); font-size: .95rem; margin: 0; }

/* ===== Sections ===== */
.section { padding: clamp(3.5rem, 8vw, 5.5rem) 0; }
.section-counseling { background: linear-gradient(180deg, #fff, var(--aqua-50)); }
.section-reserve { background: linear-gradient(180deg, var(--aqua-50), #fff); }
.section-contact { background: linear-gradient(180deg, #fff, var(--aqua-100)); }

.section-head { text-align: center; margin-bottom: 2.6rem; }
.section-eyebrow {
  font-family: "Quicksand", sans-serif;
  color: var(--aqua-500);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .8rem;
  margin: 0 0 .4rem;
}
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  color: var(--aqua-700);
  position: relative;
  display: inline-block;
  padding-bottom: .6rem;
}
.section-title::after {
  content: "";
  position: absolute;
  left: 50%; transform: translateX(-50%);
  bottom: 0;
  width: 54px; height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--aqua-300), var(--aqua-500));
}
.section-sub { color: var(--ink-soft); margin: .8rem 0 0; }

/* ===== 個別相談 menu ===== */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.3rem;
}
.menu-card {
  background: #fff;
  border: 1px solid var(--aqua-100);
  border-left: 5px solid var(--aqua-400);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1.6rem;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.menu-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.menu-card h3 { color: var(--aqua-700); font-size: 1.15rem; margin-bottom: .5rem; }
.menu-desc { color: var(--ink-soft); font-size: .95rem; margin: 0 0 1rem; }
.menu-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin: 0; color: var(--ink-soft); font-size: .9rem;
  border-top: 1px dashed var(--aqua-200); padding-top: .7rem;
}
.menu-price { color: var(--aqua-600); font-weight: 700; font-size: 1.05rem; }
.note { text-align: center; color: var(--ink-soft); font-size: .85rem; margin-top: 1.8rem; }

/* ===== 予約 steps ===== */
.steps {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.3rem;
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--aqua-100);
  border-radius: var(--radius-sm);
  padding: 2rem 1.4rem 1.4rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.step-no {
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--aqua-400), var(--aqua-600));
  color: #fff; font-weight: 700; font-size: 1.2rem;
  box-shadow: var(--shadow-sm);
  font-family: "Quicksand", sans-serif;
}
.step h3 { color: var(--aqua-700); font-size: 1.05rem; margin: .4rem 0 .4rem; }
.step p { color: var(--ink-soft); font-size: .92rem; margin: 0; }

/* Reserve form */
.reserve-card {
  background: #fff;
  border: 1px solid var(--aqua-100);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 4vw, 2.6rem);
  box-shadow: var(--shadow);
  max-width: 760px;
  margin-inline: auto;
}
.reserve-card-title { text-align: center; color: var(--aqua-700); margin-bottom: 1.4rem; font-size: 1.3rem; }
.reserve-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.3rem;
}
.field { display: flex; flex-direction: column; gap: .4rem; }
.field-full { grid-column: 1 / -1; }
.field label { font-weight: 500; font-size: .92rem; color: var(--ink); }
.req {
  background: var(--aqua-500); color: #fff; font-size: .68rem; font-weight: 700;
  padding: .1rem .5rem; border-radius: 999px; margin-left: .3rem; vertical-align: middle;
}
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--ink);
  padding: .75rem .9rem;
  border: 1.5px solid var(--aqua-200);
  border-radius: var(--radius-sm);
  background: var(--aqua-50);
  transition: border .2s, box-shadow .2s, background .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--aqua-400);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(108, 199, 234, 0.25);
}
.field textarea { resize: vertical; }

/* ===== 問い合わせ先 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.3rem;
}
.contact-item {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--aqua-200);
  border-radius: var(--radius-sm);
  padding: 1.8rem 1.2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.contact-icon { font-size: 1.9rem; }
.contact-item h3 { color: var(--aqua-700); font-size: 1.05rem; margin: .5rem 0 .5rem; }
.contact-item p { margin: .2rem 0; color: var(--ink); font-size: .95rem; }
.contact-note { color: var(--ink-soft); font-size: .8rem; }

/* ===== Footer ===== */
.site-footer {
  background: linear-gradient(160deg, var(--aqua-600), var(--aqua-700));
  color: #eaf7fe;
  padding: 2.5rem 0 2rem;
}
.footer-inner { text-align: center; display: grid; gap: 1rem; }
.footer-brand { display: flex; flex-direction: column; gap: .1rem; }
.footer-brand .brand-jp { font-size: 1.1rem; }
.footer-brand .brand-en { color: #bfe8fb; }
.footer-nav { display: flex; gap: 1.3rem; justify-content: center; flex-wrap: wrap; }
.footer-nav a { color: #eaf7fe; font-size: .92rem; }
.footer-nav a:hover { color: #fff; }
.footer-copy { color: #bfe8fb; font-size: .8rem; margin: .4rem 0 0; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .feature-grid, .menu-grid, .steps, .contact-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-burger { display: block; }
  .site-nav {
    position: fixed;
    inset: 70px 0 auto 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--aqua-100);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }
  .site-nav ul { flex-direction: column; padding: .5rem 1rem 1rem; gap: 0; }
  .site-nav a { padding: .9rem .6rem; border-bottom: 1px solid var(--aqua-100); border-radius: 0; }
  .nav-toggle:checked ~ .site-nav { max-height: 320px; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { top: 19px; transform: rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { top: 19px; transform: rotate(-45deg); }
}
@media (max-width: 560px) {
  .feature-grid, .menu-grid, .steps, .contact-grid, .reserve-form { grid-template-columns: 1fr; }
  .steps { row-gap: 2.4rem; }
  .brand-jp { font-size: .9rem; }
  .hero-actions .btn { width: 100%; }
}