@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@500&display=swap');
:root {
 --text-primary: #333333;
 --text-secondary: #666666;
 --robosta-red: #c00606;
 /* A vibrant red fitting the brand */
 --robosta-red-hover: #cc000e;
 --bg-gray: #e7f4f6;
 --bg-white: #ffffff;
 --border-color: #e0e0e0;
 --link-blue: #18adb5;
 --font-sans: "Hiragino Kaku Gothic W5", "ヒラギノ角ゴ Pro W5", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
* {
 margin: 0;
 padding: 0;
 box-sizing: border-box;
}
body {
 font-family: var(--font-sans);
 color: var(--text-primary);
 font-size: clamp(15px, 1.5vw, 17px);
 line-height: 1.8;
 letter-spacing: 0.04em;
 background-color: var(--bg-white);
}
.en {
 font-family: "Roboto", Arial, Helvetica, "sans-serif";
 font-optical-sizing: auto;
 font-weight: 500;
 font-style: normal;
 font-variation-settings: "wdth"100;
}
a {
 text-decoration: none;
 color: inherit;
}
ul {
 list-style: none;
}
.text-red {
 color: var(--robosta-red);
}
.text-sm {
 font-size: 0.875rem;
}
.font-bold {
 font-weight: 600;
}
/* Header */
.header {
 background-color: var(--robosta-red);
 box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
 color: #fff;
 position: sticky;
 top: 0;
 width: 100%;
 z-index: 1000;
}
.header-inner {
 max-width: 1200px;
 margin: 0 auto;
 padding: 0 20px;
 display: flex;
 justify-content: space-between;
 align-items: center;
}
.header-logo {
 display: flex;
 align-items: center;
}
.header-logo-img {
 height: 40px;
 width: auto;
 margin-bottom: 5px;
}
.nav-list {
 display: flex;
 justify-content: flex-end;
 align-items: center;
 gap: 3%;
 padding: 15px 0;
}
.nav-list a {
 color: #fff;
 font-weight: 600;
 font-size: 15px;
 transition: opacity 0.3s;
 white-space: nowrap;
}
.nav-list a:hover {
 opacity: 0.8;
}
.apply-btn-header {
 background-color: #18adb5;
 /* Light blue matching LP apply button */
 color: #fff !important;
 padding: 8px 16px;
 border-radius: 30px;
 font-weight: 600;
}
@media (max-width: 896px) {
 .nav-list.open li {
  width: 100%;
  text-align: center;
 }
 .nav-list {
  gap: 26px;
 }
 .nav-list a {
  font-size: 20px;
 }
 .apply-btn-header {
  display: block;
  width: 70%;
  max-width: 300px;
  text-align: center;
  margin: auto;
 }
}
/* Base Sections */
.section {
 padding: 80px 20px;
}
.section-title {
 text-align: center;
 margin-bottom: 40px;
 letter-spacing: 1px;
}
.section-title .en {
 font-size: clamp(40px, 5vw, 70px);
 line-height: 1.2em;
 display: block;
}
.section-title .jp {
 font-size: clamp(14px, 2vw, 18px);
 display: block;
 color: var(--robosta-red);
}
.gray-bg {
 background-color: var(--bg-gray);
}
.white-bg {
 background-color: var(--bg-white);
}
/* Hero Section */
.hero {
 text-align: center;
 padding: 80px 12px;
 font-feature-settings: "palt" 1;
 position: relative;
 overflow: hidden;
 background: linear-gradient(180deg, #ffffff 0%, #fafcfd 55%, #f4f7f9 100%);
}
.hero-content {
 position: relative;
 z-index: 2;
}

/* ========================================
   sections-connected: Hero + Event 連結ラッパー
   capsule-layer がここに absolute で収まる
   ======================================== */
.sections-connected {
 position: relative;
 overflow: hidden;
 /* ②白 → #e7f4f6 グラデーション */
 background: linear-gradient(
   to bottom,
   #ffffff 0%,
   #e7f4f6 100%
 );
}

/* Hero と Event の個別背景は sections-connected に統合 */
.sections-connected .hero {
 background: transparent;
 overflow: visible;
}
.sections-connected .event-section {
 background: transparent;
 overflow: visible;
 /* ③ event-section 自体にスタッキングコンテキストを作り
    写真・文字が capsule-layer(z:1) より必ず前面に来るようにする */
 position: relative;
 z-index: 2;
}

/* ========================================
   Capsule Layer（Hero〜Event を連続して覆う）
   hscnet.co.jp p-mv-capsule / p-home-lead 再現
   ・pill 形状（border-radius: 999px）
   ・ぼかしなし・グラデーション塗り・初期 rotate 定義済み
   ・GSAP が opacity / 浮遊 / scrub 変形を担う
   ======================================== */
.capsule-layer {
 position: absolute;
 inset: 0;
 pointer-events: none;
 z-index: 1; /* セクション背景(z:0)の上、コンテンツ(z:2)の下 */
 overflow: hidden;
}
.capsule-layer .c {
 position: absolute;
 border-radius: 999px;
 will-change: transform, opacity, filter;
 opacity: 0;            /* GSAP がフェードイン */
 filter: blur(20px);    /* GSAP が blur(0) に解除 = ピントが合う演出 */
}

/* セクションコンテンツはカプセルの前面に */
.sections-connected .hero-content {
 position: relative;
 z-index: 2;
}
.sections-connected .event-section > * {
 position: relative;
 z-index: 2;
}

/* ============================================================
   真円 11点（縦長カプセル版のグラデーション・配置を継承）
   width = height（縦長版の width×height 相乗平均）
   rotate は除去（円では効果なし）
   ============================================================ */

/* c--1: 左 大 ティール（一部はみ出し） */
.capsule-layer .c--1 {
 width: clamp(120px, 15vw, 200px);
 height: clamp(120px, 15vw, 200px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.62) 0%,
   rgba(14, 130, 136, 0.20) 100%);
 top: 0%;
 left: -6%;
}

/* c--2: 右 超大 ティール濃（主役・最大サイズ） */
.capsule-layer .c--2 {
 width: clamp(160px, 20vw, 260px);
 height: clamp(160px, 20vw, 260px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.88) 0%,
   rgba(12, 100, 105, 0.52) 100%);
 top: -10%;
 right: -8%;
}

/* c--3: 中央左 小 ティール淡（バンド10-20%）*/
.capsule-layer .c--3 {
 width: clamp(65px, 8vw, 108px);
 height: clamp(65px, 8vw, 108px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.50) 0%,
   rgba(24, 173, 181, 0.14) 100%);
 top: 14%;
 left: 30%;
}

/* c--4: 中央 中 ティール極淡（バンド20-30%）*/
.capsule-layer .c--4 {
 width: clamp(92px, 11.5vw, 150px);
 height: clamp(92px, 11.5vw, 150px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.26) 0%,
   rgba(24, 173, 181, 0.06) 100%);
 top: 28%;
 left: 40%;
}

/* c--5: 右内側 中 ティール（バンド30-40%）*/
.capsule-layer .c--5 {
 width: clamp(63px, 7.9vw, 106px);
 height: clamp(63px, 7.9vw, 106px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.58) 0%,
   rgba(24, 173, 181, 0.20) 100%);
 top: 34%;
 right: 18%;
}

/* c--6: Event 左 ティール（③Hero に合わせてサイズ縮小）*/
.capsule-layer .c--6 {
 width: clamp(68px, 8.5vw, 110px);
 height: clamp(68px, 8.5vw, 110px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.55) 0%,
   rgba(14, 130, 136, 0.20) 100%);
 top: 60%;
 left: -5%;
}

/* c--7: Event 右 ティール濃（③縮小）*/
.capsule-layer .c--7 {
 width: clamp(55px, 6.8vw, 90px);
 height: clamp(55px, 6.8vw, 90px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.65) 0%,
   rgba(12, 100, 105, 0.28) 100%);
 top: 62%;
 right: -5%;
}

/* c--8: Event 小 ティール淡（③縮小）*/
.capsule-layer .c--8 {
 width: clamp(36px, 4.5vw, 58px);
 height: clamp(36px, 4.5vw, 58px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.45) 0%,
   rgba(24, 173, 181, 0.12) 100%);
 top: 75%;
 right: 22%;
}

/* c--9: Hero 左内 小 ティール淡 */
.capsule-layer .c--9 {
 width: clamp(55px, 6.8vw, 90px);
 height: clamp(55px, 6.8vw, 90px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.40) 0%,
   rgba(24, 173, 181, 0.10) 100%);
 top: 8%;
 left: 16%;
}

/* c--10: Event 中央 ティール（③縮小）*/
.capsule-layer .c--10 {
 width: clamp(42px, 5.2vw, 68px);
 height: clamp(42px, 5.2vw, 68px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.38) 0%,
   rgba(24, 173, 181, 0.10) 100%);
 top: 78%;
 left: 28%;
}

/* c--11: Hero 右内 極小 ティール淡 */
.capsule-layer .c--11 {
 width: clamp(36px, 4.6vw, 61px);
 height: clamp(36px, 4.6vw, 61px);
 background: linear-gradient(160deg,
   rgba(24, 173, 181, 0.42) 0%,
   rgba(24, 173, 181, 0.12) 100%);
 top: 8%;
 right: 10%;
}

/* ============================================================
   ① 赤アクセント真円 5点（c--12〜c--16）
   サイズ小さめ・薄め、ティールと同様に濃淡で奥行き表現
   Hero エリアのテキスト中央を避けて配置
   ============================================================ */

/* c--12: 左中 小 赤 中濃 */
.capsule-layer .c--12 {
 width: clamp(32px, 4vw, 52px);
 height: clamp(32px, 4vw, 52px);
 background: linear-gradient(160deg,
   rgba(192, 6, 6, 0.55) 0%,
   rgba(192, 6, 6, 0.18) 100%);
 top: 24%;
 left: 7%;
}

/* c--13: 右中下 小 赤 淡 */
.capsule-layer .c--13 {
 width: clamp(28px, 3.5vw, 46px);
 height: clamp(28px, 3.5vw, 46px);
 background: linear-gradient(160deg,
   rgba(192, 6, 6, 0.38) 0%,
   rgba(192, 6, 6, 0.10) 100%);
 top: 38%;
 left: 68%;
}

/* c--14: 左中下 極小 赤 やや濃 */
.capsule-layer .c--14 {
 width: clamp(22px, 2.8vw, 38px);
 height: clamp(22px, 2.8vw, 38px);
 background: linear-gradient(160deg,
   rgba(192, 6, 6, 0.65) 0%,
   rgba(192, 6, 6, 0.24) 100%);
 top: 44%;
 left: 6%;
}

/* c--15: 右中上 中小 赤 極淡 */
.capsule-layer .c--15 {
 width: clamp(36px, 4.5vw, 58px);
 height: clamp(36px, 4.5vw, 58px);
 background: linear-gradient(160deg,
   rgba(192, 6, 6, 0.30) 0%,
   rgba(192, 6, 6, 0.08) 100%);
 top: 18%;
 right: 24%;
}

/* c--16: 右中下 小 赤 中淡 */
.capsule-layer .c--16 {
 width: clamp(26px, 3.2vw, 44px);
 height: clamp(26px, 3.2vw, 44px);
 background: linear-gradient(160deg,
   rgba(192, 6, 6, 0.48) 0%,
   rgba(192, 6, 6, 0.15) 100%);
 top: 46%;
 right: 7%;
}
.hero-title {
 max-width: 600px;
 width: 90%;
 margin: 0 auto 30px;
}
.hero-title .text-year {
 font-size: 64px;
 display: inline-block;
}
.hero-date, .hero-venue {
 font-size: clamp(16px, 1.5vw, 18px);
 font-weight: 600;
 margin-bottom: 12px;
}
/* Countdown */
.countdown-timer {
 display: flex;
 justify-content: center;
 align-items: center;
 gap: 15px;
 margin: 40px auto;
}
.timer-box {
 border: 2px solid var(--bg-gray);
 background: rgba(255, 255, 255, 0.7);
 box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
 border-radius: 8px;
 padding: 15px 20px 12px;
 min-width: 90px;
 display: flex;
 flex-direction: column;
 align-items: center;
}
.timer-value {
 font-size: 30px;
 font-weight: 600;
 line-height: 1;
}
.timer-label {
 font-size: 12px;
 margin-top: 2px;
}
.timer-colon {
 font-size: 24px;
 font-weight: 600;
}
.apply-btn-large {
 display: inline-block;
 background-color: #18adb5;
 color: #fff;
 font-size: clamp(18px, 3vw, 28px);
 font-weight: 600;
 padding: 15px;
 letter-spacing: 1px;
 border-radius: 40px;
 box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
 transition: transform 0.2s;
 width: 80%;
 max-width: 400px;
}
.apply-btn-large:hover {
 transform: translateY(-2px);
}
/* Event Section */
.event-container {
 max-width: 900px;
 margin: 0 auto;
 display: flex;
 gap: 40px;
 flex-wrap: wrap;
}
@media (max-width: 768px) {
 .section {
  padding: 60px 20px;
 }
 .event-container {
  flex-direction: column-reverse;
  gap: 20px;
 }
 .info-list {
  text-align: center;
  margin: auto;
 }
}
.event-images {
 flex: 1;
 min-width: 300px;
 display: flex;
 flex-direction: column;
 gap: 5px;
}
.event-image-box img {
 width: 100%;
 height: auto;
 border-radius: 4px;
 box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
 aspect-ratio: 16 / 9;
 object-fit: cover;
 object-position: top center;
}
.img-placeholder {
 width: 100%;
 height: 150px;
 background-color: #000;
 color: #fff;
 display: flex;
 justify-content: center;
 align-items: center;
 border-radius: 4px;
}
.event-details {
 flex: 1;
 min-width: 300px;
 font-feature-settings: "palt"1;
 display: flex;
 align-items: center;
}
.info-list dt {
 color: #18adb5;
 font-weight: 600;
 font-size: 14px;
 margin-bottom: 5px;
}
.info-list dd {
 margin-bottom: 20px;
 font-weight: 600;
}
/* Theme Section */
.theme-box {
 max-width: 820px;
 margin: 0 auto;
 text-align: center;
}
.theme-subtitle {
 font-size: clamp(24px, 3.4vw, 32px);
 font-weight: 600;
 margin-bottom: 20px;
 line-height: 1.5;
}
.theme-text {
 text-align: left;
 font-size: clamp(15px, 2vw, 18px);
 line-height: 2.0;
 letter-spacing: 0.04em;
}
/* Speakers Section */
.speakers-container {
 max-width: 1280px;
 margin: 0 auto;
 display: flex;
 flex-wrap: wrap;
 justify-content: center;
 gap: 30px;
}
.speaker-card {
 background-color: var(--bg-white);
 border-radius: 8px;
 overflow: hidden;
 box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
 cursor: pointer;
 transition: transform 0.2s, box-shadow 0.2s;
 display: flex;
 flex-direction: column;
 width: 280px;
}
.speaker-card:hover {
 transform: translateY(-5px);
 box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}
.speaker-photo {
 width: 100%;
 aspect-ratio: 1;
 object-fit: cover;
 object-position: top center;
 background-color: #000;
}
.speaker-info {
 padding: 20px 10px;
 text-align: center;
 flex-grow: 1;
}
.speaker-name {
 font-size: 18px;
 font-weight: 600;
 margin-bottom: 5px;
}
.speaker-org {
 color: var(--link-blue);
 font-size: 14px;
 margin-bottom: 5px;
 letter-spacing: 0.03em;
}
.speaker-title {
 font-size: 13px;
 color: var(--text-secondary);
 line-height: 1.5;
 letter-spacing: 0.03em;
}
/* Coming Soon Text */
.coming-soon-text {
 text-align: center;
 font-size: clamp(24px, 3vw, 30px);
 color: #bbb;
 font-weight: 600;
 padding: 80px 0 100px;
}
/* Program Section — card-based layout */
.program-container {
 max-width: 980px;
 margin: 0 auto;
 display: flex;
 flex-direction: column;
 gap: 0;
 border-bottom: 2px solid var(--border-color);
}
.program-note {
 max-width: 980px;
 margin: 24px auto 0;
 text-align: right;
 font-size: clamp(13px, 1.4vw, 14px);
 line-height: 1.7;
 letter-spacing: 0.04em;
 color: var(--text-secondary);
}
@media (max-width: 768px) {
 .program-note {
  text-align: left;
 }
}
/* PC: 2-column grid — time left, content right */
.pg-card {
 border-top: 2px solid var(--border-color);
 padding: 30px 0;
 display: grid;
 grid-template-columns: 160px 1fr;
 gap: 0 40px;
}
.pg-time {
 font-size: clamp(20px, 2.5vw, 24px);
 font-weight: 500;
 color: var(--link-blue);
 letter-spacing: 0.5px;
 grid-row: 1 / 20;
 line-height: 1.6em;
}
.pg-content {
 min-width: 0;
}
.program-label {
 display: inline-block;
 background-color: var(--robosta-red);
 color: #fff;
 font-size: 13px;
 font-weight: 600;
 padding: 4px 14px;
 border-radius: 3px;
 margin-bottom: 8px;
 letter-spacing: 0.04em;
}
.pg-title {
 font-size: clamp(18px, 2.5vw, 24px);
 font-weight: 600;
 line-height: 1.5;
 color: var(--link-blue);
 margin: 0 0 10px;
}
.pg-lead {
 font-size: 15px;
 line-height: 1.8;
 color: var(--text-primary);
 margin: 0 0 6px;
 letter-spacing: 0.04em;
}
.pg-note {
 font-size: 15px;
 line-height: 1.8;
 color: var(--text-primary);
 margin: 4px 0 0;
 letter-spacing: 0.04em;
}
.pg-detail-btn {
 display: inline-block;
 font-size: 13px;
 font-weight: 600;
 border-radius: 20px;
 padding: 3px 16px;
 cursor: pointer;
 transition: background-color 0.2s, color 0.2s;
 margin-bottom: 16px;
 background-color: var(--link-blue);
 color: #fff;
}
.pg-detail-btn:hover {
 background-color: var(--link-blue);
 color: #fff;
}
/* Break row */
.pg-break {
 border-top-color: var(--border-color);
}
.pg-break .pg-time, .pg-break .pg-title {
 color: var(--text-secondary);
}
/* Speaker rows inside program card */
.pg-speakers {
 display: flex;
 flex-direction: column;
 gap: 16px;
 margin-top: 4px;
}
.pg-speaker {
 display: flex;
 align-items: center;
 gap: 14px;
}
.pg-speaker-clickable {
 cursor: pointer;
}
.pg-speaker-photo {
 width: 60px;
 height: 60px;
 object-fit: cover;
 object-position: top center;
 flex-shrink: 0;
}
.pg-speaker-info {
 display: flex;
 flex-direction: column;
 gap: 2px;
}
.pg-speaker-org {
 font-size: 13px;
 color: var(--text-secondary);
 line-height: 1.5;
 letter-spacing: 0.03em;
}
.pg-speaker-name {
 font-size: clamp(16px, 2vw, 20px);
 font-weight: 600;
 line-height: 1.4;
 letter-spacing: 0.02em;
}
/* Program Modal */
.program-modal-header {
 display: flex;
 align-items: center;
 gap: 12px;
 margin-bottom: 15px;
}
.program-modal-time {
 font-size: clamp(20px, 3vw, 30px);
 font-weight: 600;
 color: var(--link-blue);
 margin-bottom: 5px;
}
.program-modal-title {
 font-size: 22px;
 font-weight: 600;
 line-height: 1.5;
 color: var(--link-blue);
 margin-bottom: 10px;
}
.program-modal-speakers {
 margin-bottom: 20px;
 padding-bottom: 20px;
 border-bottom: 1px solid #eee;
 display: flex;
 flex-direction: column;
 gap: 12px;
}
.pg-modal-speaker {
 display: flex;
 align-items: center;
 gap: 12px;
}
.pg-modal-speaker-photo {
 width: 80px;
 height: 80px;
 object-fit: cover;
 object-position: top center;
 flex-shrink: 0;
}
.pg-modal-speaker-org {
 font-size: 14px;
 line-height: 1.4em;
 display: block;
 color: var(--text-secondary);
}
.program-modal-detail p {
 font-size: 16px;
 line-height: 1.9;
 margin-bottom: 15px;
 letter-spacing: 0.04em;
}
.program-modal-agenda {
 padding-left: 20px;
 font-size: 16px;
 line-height: 1.9;
 letter-spacing: 0.04em;
}
.program-modal-agenda li {
 margin-bottom: 5px;
 list-style-type: decimal;
}
/* Tickets Section */
.tickets-container {
 max-width: 900px;
 margin: 0 auto;
 display: flex;
 gap: 32px;
 flex-wrap: wrap;
 justify-content: center;
 padding-top: 20px;
}
.ticket-card {
 flex: 1;
 min-width: 300px;
 max-width: 400px;
 background-color: var(--bg-white);
 border-radius: 20px;
 border: 1px solid var(--border-color);
 display: flex;
 flex-direction: column;
 position: relative;
 box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
 transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.ticket-card:hover {
 transform: translateY(-6px);
 box-shadow: 0 16px 36px rgba(0, 0, 0, 0.1);
}
.ticket-card.ticket-featured {
 border: 2px solid var(--robosta-red);
}
/* Badge */
.ticket-badge {
 position: absolute;
 top: -14px;
 left: 50%;
 transform: translateX(-50%);
 background: linear-gradient(135deg, var(--robosta-red), #e53e3e);
 color: #fff;
 font-size: 13px;
 font-weight: 700;
 padding: 6px 22px;
 border-radius: 20px;
 letter-spacing: 0.1em;
 box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
 white-space: nowrap;
}
.ticket-badge-sub {
 background: linear-gradient(135deg, var(--link-blue), #1dc4cd);
}
.ticket-card-header {
 text-align: center;
 padding: 36px 24px 24px;
}
.ticket-name {
 font-size: clamp(18px, 2.4vw, 24px);
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: 18px;
 letter-spacing: 0.08em;
}
.ticket-price {
 line-height: 1;
 margin-bottom: 14px;
 letter-spacing: 0;
 display: flex;
 align-items: baseline;
 justify-content: center;
 gap: 2px;
}
.ticket-price-num {
 font-size: clamp(56px, 8vw, 70px);
 font-weight: 600;
 color: var(--robosta-red);
 line-height: 1;
 letter-spacing: 0;
 font-family: "Roboto", var(--font-sans);
}
.ticket-card:not(.ticket-featured) .ticket-price-num {
 color: var(--link-blue);
}
.ticket-price-unit {
 font-size: clamp(13px, 1.4vw, 15px);
 font-weight: 600;
 color: var(--text-secondary);
 letter-spacing: 0.04em;
 font-feature-settings: "palt" 1;
}
.ticket-sub {
 display: inline-block;
 font-size: 12px;
 color: var(--text-secondary);
 background-color: var(--bg-gray);
 padding: 4px 14px;
 border-radius: 12px;
 letter-spacing: 0.08em;
}
.ticket-card-body {
 padding: 8px 28px 32px;
 display: flex;
 flex-direction: column;
 flex-grow: 1;
}
.ticket-features {
 margin-bottom: 20px;
 flex-grow: 1;
}
.ticket-features li {
 position: relative;
 padding-left: 32px;
 margin-bottom: 14px;
 font-size: clamp(14px, 1.5vw, 15px);
 line-height: 1.8;
 letter-spacing: 0.04em;
 color: var(--text-primary);
}
.ticket-features li::before {
 content: "";
 position: absolute;
 left: 0;
 top: 6px;
 width: 20px;
 height: 20px;
 border-radius: 50%;
 background-color: var(--robosta-red);
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
 background-repeat: no-repeat;
 background-position: center;
 background-size: 12px;
}
.ticket-card:not(.ticket-featured) .ticket-features li::before {
 background-color: var(--link-blue);
}
.ticket-note {
 font-size: 12px;
 color: var(--robosta-red);
 margin-bottom: 20px;
 line-height: 1.7;
 letter-spacing: 0.04em;
 padding: 12px 14px;
 background-color: rgba(192, 6, 6, 0.05);
 border-radius: 8px;
}
.ticket-btn {
 display: block;
 width: 100%;
 text-align: center;
 background: linear-gradient(135deg, var(--robosta-red), #e53e3e);
 color: #fff;
 font-size: clamp(15px, 1.7vw, 17px);
 font-weight: 700;
 font-family: inherit;
 padding: 16px;
 border: none;
 border-radius: 40px;
 transition: transform 0.2s ease, box-shadow 0.3s ease;
 letter-spacing: 0.08em;
 box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
 cursor: pointer;
}
.ticket-card:not(.ticket-featured) .ticket-btn {
 background: linear-gradient(135deg, var(--link-blue), #1dc4cd);
}
.tickets-note {
 max-width: 720px;
 margin: 40px auto 0;
 padding-left: 1.5em;
 text-align: left;
 font-size: clamp(13px, 1.4vw, 14px);
 line-height: 1.7;
 letter-spacing: 0.04em;
 color: var(--text-secondary);
}
.tickets-note li {
 list-style-type: "※";
 padding-left: 0.3em;
}
.tickets-note li + li {
 margin-top: 0.8em;
}
.tickets-note a {
 color: inherit;
 text-decoration: underline;
 transition: color 0.2s ease;
}
.tickets-note a:hover,
.tickets-note a:focus {
 color: var(--link-blue);
}
@media (max-width: 768px) {
 .tickets-note {
  margin-top: 32px;
 }
}
/* Sponsor Tier Titles */
.sponsor-tier-title.gold {
 color: #b8860b;
}
.sponsor-tier-title.silver {
 color: #888;
}
.sponsor-category + .sponsor-category {
 margin-top: 40px;
}
/* Sponsors Section */
.sponsor-category {
 text-align: center;
 max-width: 1440px;
 margin: 0 auto;
}
.sponsor-tier-title {
 color: #18adb5;
 margin-bottom: 20px;
 font-size: clamp(24px, 3vw, 30px);
}
.sponsor-logos {
 display: flex;
 justify-content: center;
 gap: 20px 30px;
 flex-wrap: wrap;
}
.sponsor-logo-placeholder {
 max-width: 300px;
 width: 44%;
 border-radius: 4px;
 background-color: #fff;
}
.sponsor-platinum .sponsor-logo-placeholder {
    max-width: 400px;
    width: 80%;
}
.sponsor-logo-placeholder a, .sponsor-logo-text {
 display: flex;
 justify-content: center;
 align-items: center;
 aspect-ratio: 300 / 100;
 display: flex;
 justify-content: center;
 align-items: center;
 padding: 10px 30px;
 box-sizing: content-box;
 font-size: 16px;
 font-weight: 600;
}
.sponsor-logo-placeholder img {
 width: 100%;
 height: 100%;
 object-fit: contain;
}
/* Location Section */
.location-container {
 max-width: 900px;
 margin: 0 auto;
 display: flex;
 gap: 40px;
 flex-wrap: wrap;
 align-items: center;
}
.location-info {
 flex: 1;
 min-width: 300px;
}
.location-name {
 font-size: 20px;
 font-weight: 600;
 margin-bottom: 15px;
}
.location-address {
 margin-bottom: 20px;
 line-height: 1.5;
}
.access-list {
 list-style-type: none;
}
.access-list li {
 margin-bottom: 10px;
 position: relative;
 padding-left: 15px;
}
.access-list li::before {
 content: "・";
 position: absolute;
 left: 0;
}
.location-image {
 flex: 1;
 min-width: 300px;
}
.location-image img {
 width: 100%;
 height: auto;
 border-radius: 4px;
 box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
 aspect-ratio: 5 / 4;
 object-fit: cover;
}
.location-map {
 width: 100%;
 line-height: 0;
}
.location-map iframe {
 display: block;
 filter: grayscale(50%) contrast(1.1);
}
/* Footer */
.footer {
 background-color: #333;
 color: #fff;
 text-align: center;
 padding: 20px;
 font-size: 14px;
}
/* Modal */
.modal {
 display: none;
 position: fixed;
 z-index: 10000001;
 left: 0;
 top: 0;
 width: 100%;
 height: 100%;
 background-color: rgba(0, 0, 0, 0);
 backdrop-filter: blur(0px);
 -webkit-backdrop-filter: blur(0px);
 align-items: center;
 justify-content: center;
 opacity: 0;
 transition: opacity 0.3s ease, background-color 0.3s ease, backdrop-filter 0.3s ease;
}
.modal.is-active {
 opacity: 1;
 background-color: rgba(0, 0, 0, 0.6);
 backdrop-filter: blur(4px);
 -webkit-backdrop-filter: blur(4px);
}
/* Prevent body scroll when modal is open */
body.modal-open {
 overflow: hidden;
}
.modal-content {
 background-color: #fff;
 margin: 0;
 padding: 30px;
 border-radius: 8px;
 width: 90%;
 max-width: 800px;
 position: relative;
 max-height: 80vh;
 overflow-y: auto;
 opacity: 0;
 transition: opacity 0.35s ease;
}
.modal.is-active .modal-content {
 opacity: 1;
}
.modal-body {
 transform: translateY(24px) scale(0.96);
 transition: transform 0.4s cubic-bezier(0.34, 1.4, 0.5, 1);
}
.modal.is-active .modal-body {
 transform: translateY(0) scale(1);
}
.close-btn {
 position: absolute;
 top: 15px;
 right: 15px;
 z-index: 10;
 font-size: 0;
 font-weight: 600;
 cursor: pointer;
 transition: transform 0.3s ease, background-color 0.3s ease; /* colorをbackground-colorに変更 */
 display: flex;
 align-items: center;
 justify-content: center;
 width: 50px;
 height: 50px;
 border-radius: 50%;
 background-color: var(--robosta-red);
}
.close-btn:hover {
 background-color: var(--robosta-red);
 transform: rotate(90deg);
}
.close-btn::before {
 content: "";
 position: absolute;
 top: 0;
 bottom: 0;
 left: 0;
 right: 0;
 margin: auto;
 width: 50%;
 height: 50%;
 -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E");
 mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E");
 -webkit-mask-repeat: no-repeat;
 mask-repeat: no-repeat;
 -webkit-mask-size: contain;
 mask-size: contain;
 background-color: #fff;
 transition: background-color 0.3s ease;
}
.close-btn:hover::before {
 background-color: #fff;
}
/* Modal Inner Layout (PC Default) */
.modal-speaker-layout {
 display: flex;
 gap: 30px;
 align-items: flex-start;
}
.modal-speaker-img {
 flex-shrink: 0;
 width: 200px;
}
.modal-speaker-img img {
 width: 200px;
 height: 200px;
 object-fit: cover;
 object-position: top center;
 /* Slightly rounded instead of full circle looks better for split view */
}
.modal-speaker-text {
 text-align: left;
}
.modal-speaker-name {
 font-size: 24px;
 margin-bottom: 5px;
}
.modal-speaker-org {
 color: var(--link-blue);
 margin-bottom: 5px;
 font-weight: 600;
}
.modal-speaker-title {
 font-size: 14px;
 color: var(--text-secondary);
 margin-bottom: 15px;
 padding-bottom: 15px;
 border-bottom: 1px solid #eee;
}
.modal-speaker-bio {
 line-height: 1.9;
 font-size: 16px;
 letter-spacing: 0.04em;
}
/* Hamburger Menu Defaults */
.hamburger {
 display: none;
 flex-direction: column;
 justify-content: space-between;
 width: 30px;
 height: 22px;
 background: transparent;
 border: none;
 cursor: pointer;
 padding: 0;
 z-index: 2001;
 /* Above mobile nav list */
}
.hamburger span {
 display: block;
 width: 100%;
 height: 3px;
 background-color: #fff;
 border-radius: 3px;
 transition: transform 0.3s ease, opacity 0.3s ease;
}
/* Responsive */
@media (max-width: 896px) {
 .header-inner {
  padding: 5px 20px;
 }
 .header-logo-img {
  height: 35px;
 }
 .nav {
  display: flex;
  justify-content: flex-end;
 }
 .hamburger {
  display: flex;
 }
 /* Hamburger open state styling */
 .hamburger.open span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
 }
 .hamburger.open span:nth-child(2) {
  opacity: 0;
 }
 .hamburger.open span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
 }
 .nav-list {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.95);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5%;
  transition: right 0.3s ease;
  z-index: 2000;
  padding: 0;
 }
 .nav-list.open {
  right: 0;
 }
}

@media (max-width: 768px) {
 .hero-title .text-year {
  font-size: 48px;
 }
 .countdown-timer {
  gap: 5px;
 }
 .timer-box {
  min-width: 70px;
  padding: 12px 10px 10px;
 }
 /* Speakers section (2 columns on mobile) */
 .speakers-container {
  gap: 15px;
 }
 .speaker-card {
  width: calc(50% - 7.5px);
 }
 .speaker-name {
  font-size: 15px;
  margin-bottom: 2px;
 }
 .speaker-org {
  font-size: 10px;
 }
 .speaker-title {
  font-size: 10px;
 }
 .speaker-info {
  padding: 10px;
 }
 /* Program mobile */
 .pg-card {
  padding: 24px 0;
  grid-template-columns: 1fr;
 }
 .pg-time {
  grid-row: auto;
  margin-bottom: 6px;
 }
 .pg-speaker-photo {
  width: 50px;
  height: 50px;
 }
 .pg-break {
  align-items: flex-start;
  gap: 4px;
  grid-template-columns: 160px 1fr;
 }
 /* Tickets mobile */
 .tickets-container {
  flex-direction: column;
  align-items: center;
  gap: 40px;
  padding-top: 24px;
 }
 .ticket-card {
  width: 100%;
  max-width: 400px;
 }
 .ticket-card-header {
  padding: 32px 20px 20px;
 }
 .ticket-card-body {
  padding: 8px 22px 28px;
 }
 /* Mobile Modal Layout Override */
 .modal-speaker-layout {
  flex-direction: column;
  align-items: center;
  gap: 20px;
 }
 .modal-speaker-text {
  text-align: center;
 }
 .modal-speaker-title {
  border-bottom: none;
  padding-bottom: 0;
 }
 .modal-speaker-bio {
  text-align: left;
  border-top: 1px solid #eee;
  padding-top: 20px;
 }
 .location-name {
  text-align: center;
 }
 .location-container {
  flex-direction: column;
 }
 /* Modal mobile fullscreen */
 .modal-content {
  width: 100%;
  height: 100vh;
  max-height: 100vh;
  border-radius: 0;
  padding: 80px 20px 20px;
  overflow-y: auto;
 }
 .close-btn {
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 2001;
 }
}
/* Scroll Reveal Animations */
.fade-up {
 opacity: 0;
 transform: translateY(30px);
 transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-up.visible {
 opacity: 1;
 transform: translateY(0);
}
/* Delay for staggered children if needed */
.delay-100 {
 transition-delay: 100ms;
}
.delay-200 {
 transition-delay: 200ms;
}
/* Back to Top Button */
.back-to-top {
 position: fixed;
 bottom: -60px;
 /* Hide initially */
 right: 30px;
 width: 50px;
 height: 50px;
 background-color: var(--robosta-red);
 color: white;
 border: none;
 border-radius: 50%;
 cursor: pointer;
 display: flex;
 align-items: center;
 justify-content: center;
 box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
 transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), transform 0.3s ease, background-color 0.3s;
 z-index: 999;
}
.back-to-top.show {
 bottom: 30px;
}
.back-to-top:hover {
 background-color: var(--robosta-red-hover);
 transform: translateY(-5px);
}
@media (max-width: 768px) {
 .back-to-top {
  right: 20px;
  width: 45px;
  height: 45px;
 }
 .back-to-top.show {
  bottom: 20px;
 }
}
/* ------------------------------
	レスポンシブ
------------------------------ */
.sp {
 display: none;
}
@media (max-width: 768px) {
 .sp {
  display: block;
 }
 .pc {
  visibility: hidden;
  display: none;
 }
}