/*
Theme Name: 四日市桜特別支援教室
Theme URI: 
Author: 
Description: 四日市桜特別支援教室 公式ホームページテーマ
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: yokkaichi-sakura
*/

/* ===== CSS VARIABLES ===== */
:root {
  --green-deep:   #2d6a4f;
  --green-mid:    #40916c;
  --green-light:  #74c69d;
  --green-pale:   #b7e4c7;
  --green-mist:   #d8f3dc;
  --green-foam:   #f0faf3;
  --sakura:       #f4a7b9;
  --sakura-light: #fde8ed;
  --warm-white:   #fdfef9;
  --text-dark:    #1b3a2d;
  --text-mid:     #3d6b52;
  --text-light:   #6b9e7c;
  --radius-lg:    24px;
  --radius-md:    16px;
  --radius-sm:    10px;
  --shadow-sm:    0 2px 10px rgba(45,106,79,0.08);
  --shadow-md:    0 8px 28px rgba(45,106,79,0.12);
  --shadow-lg:    0 20px 60px rgba(45,106,79,0.15);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Zen Maru Gothic', 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  background: var(--warm-white);
  color: var(--text-dark);
  overflow-x: hidden;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.2s; }
ul, ol { list-style: none; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5 {
  font-family: 'Zen Maru Gothic', sans-serif;
  font-weight: 700;
  line-height: 1.4;
  color: var(--green-deep);
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-light);
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: clamp(22px, 3vw, 34px);
  color: var(--green-deep);
  margin-bottom: 14px;
}

.section-title .deco {
  display: inline-block;
  padding-bottom: 6px;
  border-bottom: 3px solid var(--green-pale);
}

.section-lead {
  font-size: 15px;
  line-height: 1.95;
  color: var(--text-mid);
  max-width: 580px;
}

/* ===== LAYOUT ===== */
.site-container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

section { padding: 88px 24px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  border: none;
}

.btn-primary {
  background: var(--green-mid);
  color: #fff;
  box-shadow: 0 6px 20px rgba(64,145,108,0.38);
}
.btn-primary:hover {
  background: var(--green-deep);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(64,145,108,0.45);
  color: #fff;
}

.btn-outline {
  background: #fff;
  color: var(--green-mid);
  border: 2px solid var(--green-pale);
}
.btn-outline:hover {
  border-color: var(--green-light);
  background: var(--green-foam);
  transform: translateY(-2px);
}

/* ===== HEADER ===== */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 999;
  background: rgba(253,254,249,0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--green-mist);
  padding: 12px 24px;
}

.header-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--green-mid), var(--green-light));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 3px 12px rgba(64,145,108,0.3);
  flex-shrink: 0;
}

.logo-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.3;
}
.logo-name small {
  font-size: 10px;
  font-weight: 400;
  color: var(--text-light);
  display: block;
  letter-spacing: 0.05em;
}

/* グローバルナビ */
#main-nav { display: flex; align-items: center; gap: 24px; }

#main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-mid);
  position: relative;
  padding-bottom: 3px;
}
#main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--green-light);
  transform: scaleX(0);
  transition: transform 0.22s;
}
#main-nav a:hover { color: var(--green-deep); }
#main-nav a:hover::after { transform: scaleX(1); }

.nav-contact {
  background: var(--green-mid) !important;
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 50px;
  font-weight: 700 !important;
  font-size: 13px !important;
  box-shadow: 0 3px 12px rgba(64,145,108,0.32);
}
.nav-contact:hover { background: var(--green-deep) !important; }
.nav-contact::after { display: none !important; }

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 26px; height: 2.5px;
  background: var(--green-deep);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 100px 24px 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, var(--green-foam) 0%, var(--green-mist) 45%, #e8f5e9 100%);
  z-index: 0;
}

.hero-blob-1 {
  position: absolute;
  top: -120px; right: -100px;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(116,198,157,0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: blobFloat 9s ease-in-out infinite;
  z-index: 0;
}

.hero-blob-2 {
  position: absolute;
  bottom: -80px; left: -60px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(244,167,185,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: blobFloat 11s ease-in-out infinite reverse;
  z-index: 0;
}

@keyframes blobFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-22px) scale(1.04); }
}

/* 桜の花びら */
.petals-wrap {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.petal {
  position: absolute;
  font-size: 16px;
  opacity: 0;
  animation: petalFall linear infinite;
}
@keyframes petalFall {
  0%   { transform: translateY(-30px) rotate(0deg); opacity: 0.75; }
  100% { transform: translateY(110vh) rotate(400deg); opacity: 0; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  width: 100%;
}

.hero-text { animation: fadeSlideUp 0.85s ease both; }
.hero-visual { animation: fadeSlideUp 0.85s 0.18s ease both; }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1.5px solid var(--green-pale);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 12px;
  color: var(--green-mid);
  font-weight: 600;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}

.hero-title {
  font-size: clamp(26px, 3.8vw, 46px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--green-deep);
  margin-bottom: 20px;
}

.hero-title .sakura-word {
  color: var(--sakura);
  position: relative;
}

.hero-lead {
  font-size: 16px;
  line-height: 2.0;
  color: var(--text-mid);
  margin-bottom: 36px;
}

.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero カード */
.hero-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-lg);
  border: 1.5px solid var(--green-mist);
  position: relative;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -2px; left: 28px; right: 28px;
  height: 4px;
  background: linear-gradient(90deg, var(--green-light), var(--sakura));
  border-radius: 0 0 4px 4px;
}

.icon-row {
  display: flex;
  gap: 12px;
  margin-bottom: 22px;
}

.icon-box {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
}
.ib-green  { background: var(--green-mist); }
.ib-sakura { background: var(--sakura-light); }
.ib-yellow { background: #fff9e6; }

.feature-list { display: flex; flex-direction: column; gap: 13px; }

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
}

.feat-dot {
  width: 30px; height: 30px;
  background: var(--green-foam);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  border: 1.5px solid var(--green-pale);
}

/* ===== CONCEPT ===== */
#concept { background: var(--green-foam); }

.concept-header { margin-bottom: 48px; }

.concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.concept-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  border: 1.5px solid var(--green-mist);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.concept-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: var(--green-light);
  transform: scaleX(0);
  transition: transform 0.3s;
  transform-origin: left;
}

.concept-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.concept-card:hover::after { transform: scaleX(1); }

.concept-num {
  font-size: 52px;
  font-weight: 700;
  color: var(--green-mist);
  line-height: 1;
  margin-bottom: 6px;
}

.concept-emoji { font-size: 36px; margin-bottom: 14px; display: block; }

.concept-card h3 {
  font-size: 18px;
  color: var(--green-deep);
  margin-bottom: 12px;
}

.concept-card p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-mid);
}

/* ===== APPROACH ===== */
#approach { background: #fff; }

.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
  margin-top: 48px;
}

.approach-items { display: flex; flex-direction: column; gap: 18px; }

.approach-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--green-foam);
  border: 1.5px solid var(--green-mist);
  transition: background 0.2s;
}
.approach-item:hover { background: var(--green-mist); }

.approach-icon {
  width: 48px; height: 48px;
  background: #fff;
  border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.approach-item h4 {
  font-size: 16px;
  color: var(--green-deep);
  margin-bottom: 5px;
}
.approach-item p { font-size: 13px; line-height: 1.85; color: var(--text-mid); }

/* Step flow */
.step-visual {
  background: linear-gradient(145deg, var(--green-mist), var(--green-pale));
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1.5px solid var(--green-pale);
}

.step-visual h4 {
  text-align: center;
  font-size: 15px;
  color: var(--green-deep);
  margin-bottom: 22px;
}

.step-flow { display: flex; flex-direction: column; gap: 6px; }

.step-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}

.step-num {
  width: 32px; height: 32px;
  background: var(--green-mid);
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.step-text { font-size: 14px; font-weight: 500; color: var(--text-dark); }

.step-arrow {
  text-align: center;
  color: var(--green-light);
  font-size: 18px;
  padding: 2px 0;
}

/* ===== SUBJECTS ===== */
#subjects { background: var(--green-foam); }

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 48px;
}

.subject-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  border: 1.5px solid var(--green-mist);
  transition: transform 0.25s, box-shadow 0.25s;
}

.subject-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.subject-emoji { font-size: 40px; margin-bottom: 12px; display: block; }

.subject-card h3 {
  font-size: 16px;
  color: var(--green-deep);
  margin-bottom: 8px;
}

.subject-card p { font-size: 13px; line-height: 1.8; color: var(--text-mid); }

/* ===== NOTICE ===== */
#notice {
  background: linear-gradient(135deg, #fff9e6 0%, #fff3e0 100%);
  border-top: 2px solid #ffe0a0;
  border-bottom: 2px solid #ffe0a0;
  padding: 60px 24px;
}

.notice-box {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.notice-icon { font-size: 40px; margin-bottom: 16px; }

.notice-box h2 {
  font-size: 22px;
  color: #7a4f00;
  margin-bottom: 14px;
}

.notice-box p {
  font-size: 15px;
  line-height: 1.9;
  color: #8a6200;
}

.notice-tag {
  display: inline-block;
  background: #fff3cd;
  border: 1.5px solid #ffe082;
  border-radius: 50px;
  padding: 5px 16px;
  font-size: 12px;
  font-weight: 700;
  color: #7a4f00;
  margin-top: 18px;
}

/* ===== FAQ ===== */
#faq { background: #fff; }

.faq-list {
  max-width: 760px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border: 1.5px solid var(--green-mist);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--green-foam);
  transition: background 0.2s;
  list-style: none;
}

.faq-question:hover { background: var(--green-mist); }

.faq-q-mark {
  width: 30px; height: 30px;
  background: var(--green-mid);
  color: #fff;
  border-radius: 50%;
  font-size: 15px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.faq-question span {
  font-size: 15px;
  font-weight: 600;
  color: var(--green-deep);
  flex: 1;
}

.faq-arrow {
  color: var(--green-light);
  font-size: 18px;
  transition: transform 0.3s;
}

details[open] .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  padding: 18px 24px 18px 68px;
  background: #fff;
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-mid);
}

/* ===== CONTACT ===== */
#contact { background: var(--green-foam); }

.contact-wrap {
  max-width: 680px;
  margin: 48px auto 0;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  border: 1.5px solid var(--green-mist);
}

.contact-intro {
  text-align: center;
  margin-bottom: 36px;
}
.contact-intro p { font-size: 15px; line-height: 1.9; color: var(--text-mid); }

/* WP Contact Form 7 対応 */
.wpcf7-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 7px;
}

.form-group label .req {
  color: var(--sakura);
  font-size: 11px;
  margin-left: 5px;
}

.form-group input,
.form-group select,
.form-group textarea,
.wpcf7-form input[type="text"],
.wpcf7-form input[type="email"],
.wpcf7-form input[type="tel"],
.wpcf7-form select,
.wpcf7-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--green-pale);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--green-foam);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.wpcf7-form input:focus,
.wpcf7-form select:focus,
.wpcf7-form textarea:focus {
  border-color: var(--green-light);
  box-shadow: 0 0 0 3px rgba(116,198,157,0.2);
  background: #fff;
}

.form-group textarea,
.wpcf7-form textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  text-align: center;
  margin-top: 28px;
}

.form-submit .btn,
.wpcf7-submit {
  width: 100%;
  max-width: 340px;
  justify-content: center;
  padding: 16px;
  font-size: 16px;
  background: var(--green-mid);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(64,145,108,0.38);
  transition: all 0.25s;
}

.wpcf7-submit:hover,
.form-submit .btn:hover {
  background: var(--green-deep);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
#site-footer {
  background: var(--green-deep);
  color: rgba(255,255,255,0.85);
  padding: 56px 24px 30px;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 28px;
}

.footer-brand .logo-name { color: #fff; }
.footer-brand .logo-name small { color: rgba(255,255,255,0.6); }

.footer-tagline {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255,255,255,0.65);
  margin-top: 14px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--green-pale); }

.footer-info p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.9;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
  gap: 10px;
}

/* ===== BACK TO TOP ===== */
#back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 46px; height: 46px;
  background: var(--green-mid);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(64,145,108,0.4);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s;
  z-index: 800;
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

#back-to-top:hover { background: var(--green-deep); }

/* ===== MOBILE NAV ===== */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--warm-white);
  border-top: 1px solid var(--green-mist);
  padding: 10px 0;
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-mid);
  border-bottom: 1px solid var(--green-mist);
  transition: background 0.15s;
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { background: var(--green-foam); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner,
  .approach-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .concept-grid { grid-template-columns: 1fr; }
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  #main-nav { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 600px) {
  section { padding: 64px 20px; }
  .subjects-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-wrap { padding: 28px 20px; }
  .wpcf7-form .form-row { grid-template-columns: 1fr; }
  .hero-title { font-size: 26px; }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}