/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Yu Gothic', sans-serif;
  font-weight: 500;
  color: #222;
  line-height: 1.6;
  background-color: #E8F5E2;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
fieldset { border: none; padding: 0; margin: 0; }

/* ===== Color Palette (variables) ===== */
:root {
  --bg-light: #E8F5E2;
  --green-dark: #3A8C3A;
  --green-deep: #2D7A2D;
  --green-mid: #4CAF50;
  --yellow: #F5D020;
  --red: #E53935;
  --highlight: #B5E61D;
  --white: #FFFFFF;
  --text-dark: #222;
  --shadow: 0 4px 12px rgba(0,0,0,0.12);
  --shadow-deep: 0 6px 18px rgba(0,0,0,0.18);
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 20px;
}

main { display: block; }

/* ===== Stripe Background (reusable) ===== */
.stripe-bg {
  background-color: var(--green-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--green-deep) 0,
    var(--green-deep) 14px,
    #2a702a 14px,
    #2a702a 28px
  );
}

/* ===== Header ===== */
.site-header {
  background-color: var(--white);
  padding: 16px 0;
  border-bottom: 1px solid #eee;
}
.header-inner {
  display: flex;
  justify-content: center;
  align-items: center;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon { width: 36px; height: 36px; }
.logo-text {
  font-size: 18px;
  font-weight: 900;
  color: var(--green-dark);
  line-height: 1.05;
}
.logo-text small {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #555;
}

/* ===== Hero ===== */
.hero {
  background-color: var(--bg-light);
  padding: 36px 0 30px;
  text-align: center;
  position: relative;
}

.speech-bubble {
  display: inline-block;
  position: relative;
  background-color: var(--white);
  color: var(--text-dark);
  font-weight: 700;
  font-size: 15px;
  padding: 12px 24px;
  border-radius: 40px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.speech-bubble::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border: 10px solid transparent;
  border-top-color: var(--white);
  border-bottom: 0;
}
.speech-bubble-large {
  font-size: 19px;
  padding: 18px 28px;
  line-height: 1.5;
}

.hero-title {
  position: relative;
  font-size: 38px;
  font-weight: 900;
  line-height: 1.25;
  margin: 0 0 32px;
  letter-spacing: -0.01em;
}
.title-green {
  display: block;
  color: var(--green-dark);
  font-size: 54px;
  text-shadow: 2px 2px 0 #fff;
}
.title-badge {
  display: inline-block;
  background: linear-gradient(180deg, #ef4a3a 0%, #d12d1d 100%);
  color: var(--white);
  font-size: 24px;
  padding: 6px 22px;
  border-radius: 40px;
  margin: 10px 0;
  transform: rotate(-3deg);
  box-shadow: 0 4px 0 #a32014;
  font-weight: 900;
}
.title-black {
  display: block;
  color: var(--text-dark);
  font-size: 36px;
  margin-top: 8px;
}
.sparkle {
  position: absolute;
  color: var(--yellow);
  font-size: 30px;
  filter: drop-shadow(0 0 4px rgba(245,208,32,0.6));
}
.sparkle-left { top: 10px; left: 6%; }
.sparkle-right { top: 60px; right: 6%; }

/* ===== Prize Card ===== */
.prize-card {
  position: relative;
  background-color: var(--white);
  border-radius: 24px;
  padding: 24px 16px 20px;
  margin: 0 auto 28px;
  max-width: 380px;
  box-shadow: var(--shadow);
}
.prize-badge {
  position: absolute;
  top: -12px;
  left: -8px;
  width: 78px;
  height: 78px;
  background: radial-gradient(circle at 30% 30%, #5cb05c, var(--green-dark));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: var(--shadow);
  transform: rotate(-12deg);
  border: 3px dashed rgba(255,255,255,0.5);
  z-index: 2;
}
.prize-badge::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 55%, var(--green-dark) 56%, transparent 60%);
  z-index: -1;
}
.badge-num { font-size: 32px; line-height: 1; }
.badge-label { font-size: 14px; }

.prize-image {
  display: flex;
  justify-content: center;
  margin: 6px 0;
}
.prize-image svg {
  width: 180px;
  height: auto;
  max-height: 240px;
}
.prize-name {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-dark);
  margin: 8px 0 0;
}

/* ===== CTA Button ===== */
.cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #5cb85c 0%, var(--green-mid) 50%, #3a9a3a 100%);
  color: var(--yellow);
  font-size: 22px;
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.02em;
  padding: 20px 32px;
  border-radius: 50px;
  width: 100%;
  max-width: 480px;
  text-align: center;
  box-shadow: 0 6px 0 #2d7a2d, 0 10px 20px rgba(0,0,0,0.2);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.25);
}
.cta-button:hover {
  filter: brightness(1.05);
  transform: translateY(2px);
  box-shadow: 0 4px 0 #2d7a2d, 0 6px 14px rgba(0,0,0,0.2);
}
.cta-button:active {
  transform: translateY(5px);
  box-shadow: 0 1px 0 #2d7a2d, 0 2px 6px rgba(0,0,0,0.2);
}

/* ===== Campaign Summary ===== */
.campaign-summary {
  background-color: var(--bg-light);
  padding: 16px 0 40px;
}
.deadline-stripe {
  background-color: var(--green-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--green-deep) 0,
    var(--green-deep) 10px,
    #246b24 10px,
    #246b24 20px
  );
  color: var(--white);
  font-size: 22px;
  font-weight: 900;
  text-align: center;
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
  box-shadow: var(--shadow);
}

.campaign-info {
  background-color: var(--white);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 14px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  text-align: center;
}
.info-label {
  display: inline-block;
  background-color: var(--green-dark);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  margin: 0 0 10px;
}
.info-date {
  font-size: 22px;
  font-weight: 900;
  margin: 0;
}
.date-red {
  color: var(--red);
  font-size: 28px;
}
.info-target {
  font-size: 20px;
  font-weight: 900;
  margin: 0;
}

/* ===== Worries ===== */
.worries {
  background-color: var(--white);
  padding: 48px 0 40px;
  text-align: center;
}
.worries-illustration {
  width: 180px;
  margin: 0 auto 16px;
}
.section-title {
  position: relative;
  font-size: 26px;
  font-weight: 900;
  margin: 0 0 28px;
  line-height: 1.4;
}
.title-highlight {
  color: var(--green-dark);
  font-weight: 900;
  position: relative;
  display: inline-block;
}
.title-highlight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 8px;
  background-color: var(--highlight);
  z-index: -1;
  opacity: 0.6;
}
.title-dots {
  display: inline-flex;
  gap: 4px;
  margin-left: 6px;
  vertical-align: middle;
}
.title-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--green-dark);
}

.worries-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}
.worries-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  background-color: #f5f5f5;
  padding: 16px 18px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 700;
}
.check-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-block;
}
.check-icon svg { display: block; width: 100%; height: 100%; }
.worry-text mark {
  background-color: var(--highlight);
  color: var(--text-dark);
  padding: 0 2px;
  font-weight: 900;
}

/* ===== Mid CTA ===== */
.mid-cta {
  background-color: var(--bg-light);
  padding: 48px 0 40px;
  text-align: center;
}
.sub-copy {
  font-size: 22px;
  font-weight: 900;
  color: var(--green-dark);
  margin: 20px 0 24px;
  line-height: 1.5;
}

/* ===== Form Section ===== */
.form-section {
  padding: 48px 0;
  background-color: var(--green-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--green-deep) 0,
    var(--green-deep) 14px,
    #266b26 14px,
    #266b26 28px
  );
}
.form-title {
  text-align: center;
  margin: 0 0 28px;
  color: var(--white);
}
.form-title-sub {
  display: block;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.form-title-main {
  display: block;
  font-size: 32px;
  font-weight: 900;
  color: var(--yellow);
  letter-spacing: 0.04em;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.2);
}

.campaign-form {
  background-color: var(--white);
  border-radius: 16px;
  padding: 28px 20px;
  box-shadow: var(--shadow-deep);
}
.form-group { margin-bottom: 22px; }
.form-label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}
.required {
  display: inline-block;
  background-color: var(--red);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background-color: #f7f7f7;
  border: 1.5px solid #e0e0e0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  transition: all 0.15s ease;
}
.radio-item:hover {
  background-color: #eef7ec;
  border-color: var(--green-mid);
}
.radio-item input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--green-dark);
  flex-shrink: 0;
}
.radio-item input[type="radio"]:checked + span {
  font-weight: 700;
  color: var(--green-dark);
}

.campaign-form input[type="text"],
.campaign-form input[type="email"],
.campaign-form input[type="tel"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 16px;
  border: 1.5px solid #ccc;
  border-radius: 8px;
  background-color: #fafafa;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}
.campaign-form input:focus {
  outline: none;
  border-color: var(--green-dark);
  box-shadow: 0 0 0 3px rgba(58,140,58,0.15);
  background-color: var(--white);
}
.campaign-form input::placeholder { color: #aaa; }

.checkbox-group { margin: 28px 0 24px; }
.checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  cursor: pointer;
  line-height: 1.5;
}
.checkbox-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--green-dark);
  flex-shrink: 0;
  margin-top: 2px;
}
.checkbox-item a {
  color: var(--green-dark);
  text-decoration: underline;
  font-weight: 700;
}

.form-submit {
  margin-top: 8px;
  width: 100%;
}

.form-message {
  text-align: center;
  margin: 16px 0 0;
  min-height: 1.5em;
  font-weight: 700;
}
.form-message.success { color: var(--green-dark); }
.form-message.error { color: var(--red); }

/* ===== Notes ===== */
.notes-section {
  padding: 0 0 48px;
  background-color: var(--green-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--green-deep) 0,
    var(--green-deep) 14px,
    #266b26 14px,
    #266b26 28px
  );
}
.notes-card {
  background-color: var(--white);
  border-radius: 12px;
  padding: 24px 20px;
  box-shadow: var(--shadow);
}
.notes-title {
  font-size: 18px;
  font-weight: 900;
  margin: 0 0 14px;
  color: var(--text-dark);
  text-align: center;
}
.notes-list {
  font-size: 13px;
  line-height: 1.7;
  color: #444;
}
.notes-list li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
}
.notes-list li::before {
  content: "・";
  position: absolute;
  left: 0;
  color: var(--green-dark);
  font-weight: 700;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--green-deep);
  background-image: repeating-linear-gradient(
    -45deg,
    var(--green-deep) 0,
    var(--green-deep) 14px,
    #266b26 14px,
    #266b26 28px
  );
  color: var(--white);
  text-align: center;
  padding: 22px 16px;
  font-size: 13px;
  font-weight: 700;
}
.site-footer p { margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .title-green { font-size: 44px; }
  .title-black { font-size: 28px; }
  .hero-title { font-size: 30px; }
  .cta-button { font-size: 19px; padding: 18px 20px; }
  .sub-copy { font-size: 19px; }
  .form-title-main { font-size: 26px; }
  .deadline-stripe { font-size: 18px; }
  .date-red { font-size: 24px; }
  .info-date { font-size: 18px; }
  .prize-badge { width: 64px; height: 64px; }
  .badge-num { font-size: 26px; }
  .badge-label { font-size: 12px; }
  .sparkle-left { left: 2%; }
  .sparkle-right { right: 2%; }
}

@media (min-width: 768px) {
  .hero { padding: 56px 0 48px; }
  .worries { padding: 64px 0 56px; }
  .mid-cta { padding: 64px 0 56px; }
}