/* ============================================
   BizLeap セミナー集客LP - style.css
   カラー: ティールグリーン × ホワイト
   ============================================ */

/* ----------------------------------------
   リセット + ベーススタイル
   ---------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  color: #334155;
  background-color: #FFFFFF;
  line-height: 1.8;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

ul {
  list-style: none;
}

/* ----------------------------------------
   共通ユーティリティ
   ---------------------------------------- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: #0D9488;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 32px;
  color: #134E4A;
  line-height: 1.45;
  margin-bottom: 48px;
}

.section-header {
  text-align: center;
  margin-bottom: 8px;
}

.section-header .section-title {
  margin-bottom: 56px;
}

/* ボタン共通 */
.btn {
  display: inline-block;
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.3s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.25s ease;
  border-radius: 6px;
}

.btn:hover {
  transform: translateY(-3px);
}

/* ----------------------------------------
   セクション1: ヘッダー
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #E2E8F0;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 24px;
  color: #0D9488;
  letter-spacing: -0.5px;
}

.logo:hover {
  color: #0F766E;
}

.portfolio-note-header {
  font-size: 11px;
  color: #94A3B8;
  white-space: nowrap;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-header {
  font-size: 13px;
  padding: 8px 20px;
  background-color: #0D9488;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(13, 148, 136, 0.18);
}

.btn-header:hover {
  background-color: #0F766E;
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.28);
}

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #334155;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----------------------------------------
   セクション2: ヒーローセクション
   ---------------------------------------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    135deg,
    rgba(19, 78, 74, 0.65) 0%,
    rgba(13, 148, 136, 0.3) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 140px 24px 100px;
  max-width: 820px;
}

.demo-badge {
  display: inline-block;
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 1.5px;
  color: #334155;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(6px);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 40px;
  color: #FFFFFF;
  line-height: 1.5;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.12);
}

.hero-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.9;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 44px;
}

.hero-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge-number {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 36px;
  color: #FFFFFF;
  line-height: 1.2;
}

.hero-badge-number small {
  font-size: 20px;
  font-weight: 600;
  margin-left: 2px;
}

.hero-badge-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 4px;
  letter-spacing: 0.5px;
}

.btn-cta-hero {
  font-size: 17px;
  padding: 18px 48px;
  background-color: #0D9488;
  color: #FFFFFF;
  box-shadow: 0 4px 24px rgba(13, 148, 136, 0.35);
  letter-spacing: 0.5px;
}

.btn-cta-hero:hover {
  background-color: #0F766E;
  box-shadow: 0 8px 32px rgba(13, 148, 136, 0.45);
}

.hero-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 16px;
}

.hero-portfolio-note {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 40px;
}

/* ----------------------------------------
   セクション3: こんなお悩みありませんか？
   ---------------------------------------- */
.challenges {
  background-color: #F0FDFA;
  padding: 100px 0 110px;
}

.challenges-grid {
  display: grid;
  grid-template-columns: 1fr 45%;
  gap: 56px;
  align-items: center;
}

.challenges-text .section-label {
  margin-bottom: 14px;
}

.challenges-text .section-title {
  margin-bottom: 36px;
}

.challenges-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 36px;
}

.challenges-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 15px;
  line-height: 1.75;
  color: #334155;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  min-width: 26px;
  background-color: #0D9488;
  color: #FFFFFF;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  margin-top: 2px;
}

.challenges-conclusion {
  font-size: 16px;
  font-weight: 500;
  color: #0D9488;
  padding-left: 40px;
}

.challenges-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(19, 78, 74, 0.1);
}

.challenges-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 380px;
}

/* ----------------------------------------
   セクション4: セミナーで得られること
   ---------------------------------------- */
.benefits {
  background-color: #FFFFFF;
  padding: 100px 0 120px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.benefit-card {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1);
}

.benefit-card-image {
  overflow: hidden;
  border-radius: 8px 8px 0 0;
}

.benefit-card-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.benefit-card:hover .benefit-card-image img {
  transform: scale(1.04);
}

.benefit-card-body {
  padding: 28px 24px 32px;
}

.benefit-card-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 19px;
  color: #134E4A;
  margin-bottom: 12px;
  line-height: 1.5;
}

.benefit-card-text {
  font-size: 14px;
  line-height: 1.85;
  color: #475569;
}

/* ----------------------------------------
   セクション5: CTA（中間）
   ---------------------------------------- */
.cta-mid {
  background-color: #134E4A;
  padding: 72px 0;
  text-align: center;
}

.cta-mid-text {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: #FFFFFF;
  margin-bottom: 32px;
  line-height: 1.6;
}

.btn-cta-mid {
  font-size: 16px;
  padding: 16px 44px;
  background-color: #FFFFFF;
  color: #0D9488;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-cta-mid:hover {
  background-color: #F0FDFA;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
  color: #0F766E;
}

.cta-mid-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 16px;
}

/* ----------------------------------------
   セクション6: 登壇者紹介
   ---------------------------------------- */
.speaker {
  background-color: #FFFFFF;
  padding: 100px 0 120px;
}

.speaker-grid {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: 56px;
  align-items: start;
}

.speaker-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(19, 78, 74, 0.1);
}

.speaker-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  min-height: 440px;
}

.speaker-text {
  padding-top: 12px;
}

.speaker-name {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: #134E4A;
  margin-bottom: 10px;
}

.speaker-title {
  font-size: 14px;
  color: #64748B;
  line-height: 1.7;
  margin-bottom: 24px;
}

.speaker-bio {
  font-size: 15px;
  line-height: 1.9;
  color: #334155;
  margin-bottom: 32px;
}

.speaker-message {
  position: relative;
  font-size: 15px;
  font-style: italic;
  line-height: 1.85;
  color: #0D9488;
  padding: 20px 24px;
  border-left: 4px solid #0D9488;
  background: #F0FDFA;
  border-radius: 0 8px 8px 0;
}

/* ----------------------------------------
   セクション7: 参加者の声
   ---------------------------------------- */
.testimonials {
  background-color: #F0FDFA;
  padding: 100px 0 110px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.testimonial-card {
  position: relative;
  background: #FFFFFF;
  border-radius: 12px;
  padding: 40px 32px 32px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.09);
}

.testimonial-quote {
  position: absolute;
  top: 12px;
  left: 20px;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 56px;
  line-height: 1;
  color: #0D9488;
  opacity: 0.25;
  user-select: none;
  pointer-events: none;
}

.testimonial-text {
  font-size: 14px;
  line-height: 1.9;
  color: #334155;
  margin-bottom: 20px;
}

.testimonial-author {
  font-size: 13px;
  color: #64748B;
  line-height: 1.6;
}

/* ----------------------------------------
   セクション8: セミナー概要・開催情報
   ---------------------------------------- */
.details {
  background-color: #FFFFFF;
  padding: 100px 0 120px;
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr 42%;
  gap: 48px;
  align-items: start;
}

.details-table {
  width: 100%;
  border-collapse: collapse;
}

.details-table tr:nth-child(odd) {
  background-color: #F0FDFA;
}

.details-table tr:nth-child(even) {
  background-color: #FFFFFF;
}

.details-table th,
.details-table td {
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.7;
  text-align: left;
  border: none;
}

.details-table th {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  color: #134E4A;
  white-space: nowrap;
  width: 120px;
  padding-left: 24px;
}

.details-table td {
  color: #334155;
}

.details-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(19, 78, 74, 0.1);
  align-self: center;
}

.details-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 360px;
}

/* ----------------------------------------
   セクション9: よくあるご質問（FAQ）
   ---------------------------------------- */
.faq {
  background-color: #F0FDFA;
  padding: 100px 0 110px;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #FFFFFF;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.faq-item[open] {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.07);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: #134E4A;
  cursor: pointer;
  line-height: 1.6;
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

/* +/- トグルアイコン */
.faq-question::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  min-width: 28px;
  font-family: "Poppins", sans-serif;
  font-weight: 400;
  font-size: 20px;
  color: #0D9488;
  border: 2px solid #0D9488;
  border-radius: 50%;
  margin-left: 16px;
  transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
  line-height: 1;
}

.faq-item[open] .faq-question::after {
  content: "\2212"; /* minus sign */
  background-color: #0D9488;
  color: #FFFFFF;
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 24px;
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.85;
  color: #475569;
  padding-top: 4px;
  border-top: 1px solid #E2E8F0;
  padding-top: 16px;
}

/* ----------------------------------------
   セクション10: 最終CTA
   ---------------------------------------- */
.cta-final {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  text-align: center;
}

.cta-final-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.cta-final-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.cta-final-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-color: rgba(19, 78, 74, 0.82);
}

.cta-final-content {
  position: relative;
  z-index: 3;
}

.cta-final-title {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: 36px;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.45;
}

.cta-final-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 40px;
  letter-spacing: 1px;
}

.btn-cta-final {
  font-size: 17px;
  padding: 18px 52px;
  background-color: #FFFFFF;
  color: #0D9488;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
  letter-spacing: 0.5px;
}

.btn-cta-final:hover {
  background-color: #F0FDFA;
  box-shadow: 0 8px 36px rgba(0, 0, 0, 0.25);
  color: #0F766E;
}

.cta-final-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 16px;
}

/* ----------------------------------------
   セクション11: フッター
   ---------------------------------------- */
.footer {
  background-color: #1A2744;
  padding: 56px 0 40px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer-logo {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  font-size: 22px;
  color: #FFFFFF;
  letter-spacing: -0.5px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
}

.footer-nav a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s ease;
}

.footer-nav a:hover {
  color: #FFFFFF;
}

.footer-portfolio-note {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 8px;
  max-width: 500px;
  line-height: 1.6;
}

.footer-org {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-copyright {
  font-family: "Poppins", sans-serif;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

/* ----------------------------------------
   レスポンシブ: タブレット（768px以下）
   ---------------------------------------- */
@media (max-width: 768px) {
  .section-title {
    font-size: 26px;
    margin-bottom: 36px;
  }

  .section-header .section-title {
    margin-bottom: 40px;
  }

  /* ヘッダー */
  .btn-header {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .portfolio-note-header {
    display: none;
  }

  /* ヒーロー */
  .hero {
    min-height: 80vh;
  }

  .hero-content {
    padding: 120px 20px 72px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-sub {
    font-size: 14px;
  }

  .hero-badges {
    gap: 28px;
    margin-bottom: 36px;
  }

  .hero-badge-number {
    font-size: 28px;
  }

  .btn-cta-hero {
    font-size: 15px;
    padding: 16px 36px;
  }

  /* お悩み */
  .challenges {
    padding: 72px 0 80px;
  }

  .challenges-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .challenges-image {
    order: -1;
  }

  .challenges-image img {
    min-height: 240px;
  }

  .challenges-conclusion {
    padding-left: 0;
  }

  /* 得られること */
  .benefits {
    padding: 72px 0 80px;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  /* CTA中間 */
  .cta-mid {
    padding: 56px 0;
  }

  .cta-mid-text {
    font-size: 20px;
  }

  /* 登壇者 */
  .speaker {
    padding: 72px 0 80px;
  }

  .speaker-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .speaker-image img {
    min-height: 320px;
    max-height: 440px;
    object-position: center top;
  }

  /* 参加者の声 */
  .testimonials {
    padding: 72px 0 80px;
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* 開催概要 */
  .details {
    padding: 72px 0 80px;
  }

  .details-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .details-image {
    order: -1;
  }

  .details-image img {
    min-height: 240px;
    max-height: 320px;
  }

  /* FAQ */
  .faq {
    padding: 72px 0 80px;
  }

  /* 最終CTA */
  .cta-final {
    padding: 72px 0;
  }

  .cta-final-title {
    font-size: 28px;
  }

  .btn-cta-final {
    font-size: 15px;
    padding: 16px 40px;
  }

  /* フッター */
  .footer {
    padding: 44px 0 32px;
  }
}

/* ----------------------------------------
   レスポンシブ: スマートフォン（480px以下）
   ---------------------------------------- */
@media (max-width: 480px) {
  .section-title {
    font-size: 24px;
    margin-bottom: 28px;
  }

  .section-header .section-title {
    margin-bottom: 32px;
  }

  /* ヒーロー */
  .hero {
    min-height: 100svh;
  }

  .hero-content {
    padding: 108px 16px 60px;
  }

  .hero-title {
    font-size: 24px;
  }

  .hero-sub {
    font-size: 13px;
    margin-bottom: 28px;
  }

  .hero-badges {
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
  }

  .hero-badge-number {
    font-size: 32px;
  }

  .btn-cta-hero {
    width: 90%;
    padding: 16px 24px;
    font-size: 15px;
  }

  /* 得られること */
  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .benefit-card-image img {
    height: 200px;
  }

  /* CTA中間 */
  .cta-mid-text {
    font-size: 18px;
  }

  .btn-cta-mid {
    width: 90%;
    padding: 16px 24px;
  }

  /* 参加者の声 */
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .testimonial-card {
    padding: 36px 24px 28px;
  }

  /* テーブル */
  .details-table th,
  .details-table td {
    display: block;
    width: 100%;
    padding: 8px 20px;
  }

  .details-table th {
    padding-bottom: 0;
    padding-top: 16px;
  }

  .details-table td {
    padding-top: 4px;
    padding-bottom: 16px;
  }

  /* FAQ */
  .faq-question {
    font-size: 14px;
    padding: 16px 20px;
  }

  .faq-question::after {
    width: 24px;
    height: 24px;
    min-width: 24px;
    font-size: 17px;
  }

  .faq-answer {
    padding: 0 20px 20px;
  }

  /* 最終CTA */
  .cta-final-title {
    font-size: 24px;
  }

  .btn-cta-final {
    width: 90%;
    padding: 16px 24px;
    font-size: 15px;
  }

  /* フッター */
  .footer-nav {
    flex-direction: column;
    gap: 12px;
  }
}