:root {
     --navy: #003366;
     --red: #D70000;
 }

 html,
 body {
     overflow-x: hidden;
     width: 100%;
 }

 *,
 *::before,
 *::after {
     box-sizing: border-box;
 }

 /***** HERO MONOLITH REBUILD *****/
 /***** HERO MONOLITH REBUILD *****/

 .hero-central {
     min-height: calc(100vh - 80px);
     display: flex;
     align-items: center;
     justify-content: center;
     text-align: center;
     padding: 0;
     /* remove top offset to keep true center */
 }

 /* 中央に“圧縮された塊”を作る */
 .hero-inner-central {
     width: min(90%, 680px);
     margin: 0 auto;

     display: flex;
     flex-direction: column;
     align-items: center;

     /* 上下に強制的な隔離空間 */
     padding-top: 18vh;
     padding-bottom: 6vh;

     position: relative;
     z-index: 1;

     transform: translateY(-10vh);
 }

 /* シンボル（背景レイヤー化） */
 .hero-symbol-wrapper {
     position: absolute;
     top: 60%;
     left: 50%;
     transform: translate(-50%, -50%);
     pointer-events: none;
     z-index: 0;
 }

 .hero-symbol-inline {
     width: 1000px;
     opacity: 1;
     /* 初期はフル表示 */
 }

 /* ===== H1（支配レイヤー） ===== */
 .hero-title-max {
     font-family: "Sawarabi Mincho", serif;

     /* 核：極端なスケール */
     font-size: clamp(4rem, 15vw, 10rem);

     line-height: 0.88;
     letter-spacing: -0.06em;

     color: var(--navy);

     margin-bottom: 8px;

     position: relative;
     z-index: 2;
 }

 /* ===== H2（極端に小さく） ===== */
 .hero-title-sub-central {
     font-size: 1.4rem;
     color: var(--red);

     /* 意図的に距離を取る */
     margin-bottom: 56px;
 }

 /* ===== 説明（さらに弱く） ===== */
 .hero-description-central {
     margin-bottom: 64px;
 }

 .hero-description-central p {
     margin: 0 0 6px;
     font-size: 0.95rem;
     opacity: 0.75;
 }

 /* ===== CTA（低圧） ===== */
 .hero-cta-area-central {
     margin-top: 0;
 }

 /* ===== CTA LINK CENTRAL (Refined Arrow Animation) ===== */
 .cta-link-central {
     text-decoration: none;
     border-bottom: 1px solid var(--navy);
     color: var(--navy);

     font-size: 0.9rem;
     letter-spacing: 0.08em;

     opacity: 0.8;
 }

 .cta-link-central .cta-arrow {
     display: inline-block;
     margin-left: 6px;
     transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1),
         opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1);
 }

 .cta-link-central:hover .cta-arrow {
     transform: translateX(6px);
     opacity: 1;
 }

 /* Add initial state for animation */
 .hero-title-max,
 .hero-title-sub-central,
 .hero-description-central,
 .hero-cta-area-central {
     opacity: 0;
     transform: translateY(20px);
 }

 .cta-link-central {
     text-decoration: none;
     border-bottom: 1px solid var(--navy);
     color: var(--navy);
     letter-spacing: 0.08em;
 }

 .hero-title-max {
     letter-spacing: -0.08em;
     line-height: 0.85;
 }

 /* ===== HERO MOTION (FIXED) ===== */

 .hero-central.hero-loaded .hero-title-max {
     animation: fadeScale 2.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
     animation-delay: 0.8s;
     will-change: opacity, transform;
 }

 .hero-central.hero-loaded .hero-symbol-wrapper {
     animation: logoFadeOut 2.2s ease-out forwards;
     animation-delay: 0.2s;
 }

 .hero-central.hero-loaded .hero-title-sub-central {
     animation: fadeUp 1.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
     animation-delay: 1.2s;
     will-change: opacity, transform;
 }

 .hero-central.hero-loaded .hero-description-central {
     animation: fadeUp 1.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
     animation-delay: 1.7s;
     will-change: opacity, transform;
 }

 .hero-central.hero-loaded .hero-cta-area-central {
     animation: fadeUp 1.4s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
     animation-delay: 2.1s;
     will-change: opacity, transform;
 }

 /* ===== KEYFRAMES ===== */

 @keyframes fadeUp {
     to {
         opacity: 1;
         transform: translateY(0);
     }
 }

 @keyframes fadeScale {
     0% {
         opacity: 0;
         transform: scale(1.05);
     }

     100% {
         opacity: 1;
         transform: scale(1);
     }
 }

 @keyframes logoFadeOut {
     0% {
         opacity: 1;
     }

     100% {
         opacity: 0.1;
     }
 }

 /* ===== VALUE (Monolith Typography) ===== */

 /* ===== CONTACT (Monolith Closing) ===== */

 /* ===== GLOBAL MONOLITH ENFORCER ===== */

 /* 全セクションを中央支配に統一 */
 .mono {
     display: flex;
     flex-direction: column;
     align-items: center;
     text-align: center;

     width: min(90%, 720px);
     margin: 0 auto;
 }

 /* すべてのテキスト要素を中央に収束 */
 .mono h2,
 .mono h3,
 .mono p,
 .mono ul {
     margin-left: auto;
     margin-right: auto;
 }

 /* リストだけは可読性のため中央寄せ＋左揃え */
 .mono ul {
     text-align: left;
     max-width: 480px;
 }

 /* ===== MONO STACK (force vertical single-column flow) ===== */
 .mono-stack {
     display: flex !important;
     flex-direction: column !important;
     align-items: center;
     justify-content: center;

     width: 100%;
     margin: 0 auto;

     gap: 32px;
     /* vertical rhythm */
 }

 /* children normalization */
 .mono-stack>* {
     width: 100%;
     max-width: 640px;
     /* isolation band */
     margin-left: auto;
     margin-right: auto;
 }

 /* kill any grid behavior that breaks Monolith */
 .mono-stack[class*="grid"],
 .mono-stack[class*="panel"] {
     display: flex !important;
 }

 /* text hierarchy normalization */
 .mono-stack h2,
 .mono-stack h3 {
     font-family: "Sawarabi Mincho", serif;
     letter-spacing: -0.04em;
     margin-bottom: 12px;
 }

 .mono-stack p {
     font-size: 0.78rem;
     line-height: 2.05;
     letter-spacing: 0.03em;
     opacity: 0.58;
     margin-top: 6px;
 }

 .mono-stack ul {
     text-align: left;
     max-width: 520px;
     margin-top: 8px;
 }

 .mono-stack ul li {
     margin-bottom: 12px;
     line-height: 1.95;
     opacity: 0.65;
     font-size: 0.78rem;
 }

 /* tighter stack variant */
 .mono-stack-tight {
     gap: 18px;
 }

 /* セクション間の余白統一（Hero以下） */
 .section {
     padding: 14vh 0;
 }

 @media (max-width: 768px) {
     .section {
         padding: 10vh clamp(18px, 6vw, 30px);
     }

     /* prevent fixed-header overlap on About first section */
     .about-page .section {
         padding-top: max(150px, 16vh);
     }

     .contact-page .section {
         padding-top: max(150px, 16vh);
     }
 }

 /* ===== HERO TO FIRST SECTION TENSION ===== */
 .hero-central+.section {
     padding-top: 4vh;
 }

 /* ===== BLOCK TENSION (grouping vs isolation) ===== */

 /* tighten inner grouping */
 .mono-stack>*+* {
     margin-top: 0;
 }

 /* emphasize section separation */
 .section+.section {
     margin-top: 5vh;
 }

 /* ===== SCROLL MOTION (Emergence from Silence) ===== */

 /* initial state (enforced strictly to prevent ID specificity overrides) */
 .reveal h2:not(.is-visible),
 .reveal h3:not(.is-visible),
 .reveal .eyebrow:not(.is-visible),
 .reveal p:not(.is-visible),
 .reveal li:not(.is-visible),
 .reveal .mono-stack>*:not(.is-visible),
 .reveal .value-highlight:not(.is-visible) {
     opacity: 0 !important;
     transform: translateY(12px) !important;
     will-change: opacity, transform;
 }

 /* container becomes visible (no transform on container to avoid layout shift) */
 .reveal.is-visible {
     /* no-op for container; children handle motion */
 }

 /* headings: slower, earlier */
 .reveal h2.is-visible,
 .reveal h3.is-visible,
 .reveal .eyebrow.is-visible {
     opacity: 1;
     transform: translateY(0);
     transition: opacity 1.2s cubic-bezier(0.2, 0, 0, 1),
         transform 1.2s cubic-bezier(0.2, 0, 0, 1);
 }

 /* body: slightly later, same easing */
 .reveal p.is-visible,
 .reveal li.is-visible,
 .reveal .mono-stack>*.is-visible,
 .reveal .value-highlight.is-visible {
     opacity: 1;
     transform: translateY(0);
     transition: opacity 1.2s cubic-bezier(0.2, 0, 0, 1),
         transform 1.2s cubic-bezier(0.2, 0, 0, 1);
 }

 /* subtle overall opacity ramp for entire section to reinforce mass */
 .reveal {
     opacity: 1;
     /* keep container visible; children carry motion */
 }

 @media (max-width: 768px) {

     .reveal h2.is-visible,
     .reveal h3.is-visible,
     .reveal p.is-visible,
     .reveal li.is-visible,
     .reveal .mono-stack>*.is-visible {
         transition-duration: 1.1s;
     }
 }

 /* ===== QUIET RAIL HEADER ===== */

 .site-header {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     z-index: 100;

     /* 極限まで存在を消す */
     background: rgba(255, 255, 255, 0.02);
     backdrop-filter: blur(6px);

     transition: transform 0.6s cubic-bezier(0.2, 0, 0, 1),
         opacity 0.6s cubic-bezier(0.2, 0, 0, 1);
 }

 /* 内部レイアウト */
 .header-inner {
     width: min(100%, 720px);
     margin: 0 auto;
     padding: 20px 24px;

     display: flex;
     justify-content: space-between;
     align-items: center;
 }

 /* ロゴ */
 .header-logo {
     height: 85px;
     width: auto;
     opacity: 0.8;
     transition: opacity 0.3s ease;
 }

 .header-logo-link:hover .header-logo {
     opacity: 1;
 }

 /* ナビ */
 .header-nav {
     display: flex;
     gap: 16px;
 }

 /* リンク */
 .header-link {
     font-size: 0.8rem;
     letter-spacing: 0.06em;
     text-decoration: none;
     color: var(--navy);

     opacity: 0.6;
     transition: opacity 0.3s ease;
 }

 .header-link:hover {
     opacity: 1;
 }

 /* ===== SCROLL BEHAVIOR ===== */

 /* 下スクロールで消える */
 .site-header.hide {
     transform: translateY(-100%);
     opacity: 0;
 }

 /* 上スクロールで出る */
 .site-header.show {
     transform: translateY(0);
     opacity: 1;
 }

 /* ===== HEADER PRIVATE FLOW (NON-DESTRUCTIVE ADDITION) ===== */

 /* group layout inside header-nav */
 .nav-default,
 .nav-private {
     display: flex;
     align-items: center;
     gap: 16px;
 }

 /* default: show public, hide private */
 .nav-private {
     display: none;
 }

 /* when logged-in, swap groups */
 .site-header.is-logged-in .nav-default {
     display: none;
 }

 .site-header.is-logged-in .nav-private {
     display: flex;
 }

 /* subtle Login/Logout link treatment */
 .header-login {
     opacity: 0.7;
     font-size: 0.75rem;
 }

 .header-login:hover {
     opacity: 0.9;
 }

 /* ===== NAV COMBO BASE (DESKTOP FIRST) ===== */

 .nav-combo {
     display: flex;
     align-items: center;
     gap: 12px;
     position: relative;
 }

 .nav-drawer {
     display: flex;
     align-items: center;
     gap: 16px;
 }

 /* hamburger hidden on desktop */
 .mono-hamburger {
     display: none;
 }


 /* ===== LOGIN MONOLITH UI ===== */

 .login-wrapper {
     min-height: calc(100vh - 120px);
     display: flex;
     align-items: center;
     justify-content: center;
     flex-direction: column;
     text-align: center;
 }

 .login-form {
     transition: opacity 0.8s ease;
 }

 .login-result {
     display: none;
     opacity: 0;
 }

 .login-status {
     font-family: "Sawarabi Mincho", serif;
     font-size: 1.2rem;
     letter-spacing: 0.08em;
     opacity: 0.7;
 }

 /* tighten login spacing */
 .login-form .mono-title {
     margin-bottom: 24px;
 }

 .login-form .mono-lead {
     margin-bottom: 48px;
     opacity: 0.5;
 }

 .login-form .mono-link {
     font-size: 0.85rem;
     letter-spacing: 0.12em;
     opacity: 0.7;
     border-bottom: 1px solid var(--navy);
     text-decoration: none;
     color: var(--navy);
 }

 .login-form .mono-link:hover {
     opacity: 1;
 }

 /* ===== DASHBOARD MONOLITH TUNING ===== */

 .mono-container {
     width: min(90%, 720px);
     margin: 0 auto;
 }

 .mono-block {
     margin-bottom: 140px;
     /* stronger vertical isolation */
 }

 .mono-block:last-child {
     margin-bottom: 0;
 }

 .mono-subtitle {
     font-family: "Sawarabi Mincho", serif;
     font-size: clamp(2.8rem, 6vw, 3.6rem);
     letter-spacing: -0.05em;
     opacity: 0.98;
     margin-bottom: 72px;
     line-height: 1.05;
 }

 .mono-subtitle-strong {
     font-size: clamp(2.2rem, 5vw, 3rem);
     letter-spacing: -0.06em;
     line-height: 1.02;
     margin-bottom: 36px;
 }

 /* ===== EDITORIAL HIERARCHY (Eyebrow System) ===== */


 .mono-heading-group {
     display: flex;
     flex-direction: column;
     align-items: center;
     margin-bottom: 40px;
 }

 /* tighten relationship between heading and portrait (Founder block) */
 .mono-block[style*="text-align: center"] .mono-heading-group {
     margin-bottom: 24px;
 }

 /* Eyebrow-only (Founder) visual balance */
 .mono-block[style*="text-align: center"] .mono-eyebrow {
     margin-bottom: 16px;
     letter-spacing: 0.18em;
     opacity: 0.6;
 }

 .mono-eyebrow {
     font-size: 0.75rem;
     letter-spacing: 0.15em;
     text-transform: uppercase;
     opacity: 0.5;
     margin-bottom: 12px;
 }


 .mono-heading {
     font-family: "Sawarabi Mincho", serif;
     font-size: clamp(2.2rem, 5vw, 2.8rem);
     line-height: 1.1;
     margin-bottom: 0;
 }

 /* ===== MONO TEXT RHYTHM TUNING ===== */
 .mono-block p {
     line-height: 1.9;
     margin-top: 8px;
 }

 .mono-block ul {
     margin-top: 12px;
 }

 .mono-block ul li {
     margin-bottom: 10px;
     line-height: 1.9;
 }

 /* tighten stack inside blocks */
 .mono-block .mono-stack {
     gap: 20px;
 }

 /* links in dashboard feel quieter */
 .mono-block .mono-link {
     font-size: 0.8rem;
     letter-spacing: 0.1em;
     opacity: 0.6;
     color: var(--navy);
     text-decoration: none;
 }

 .mono-block .mono-link:hover {
     opacity: 1;
 }

 /* ===== BOOKING INPUT (MONOLITH FORM) ===== */

 .mono-input {
     width: 100%;
     max-width: 420px;

     background: transparent;
     border: none;
     border-bottom: 1px solid rgba(0, 0, 0, 0.2);

     padding: 8px 4px;

     font-size: 0.9rem;
     letter-spacing: 0.05em;
     text-align: left;

     outline: none;

     opacity: 0.7;
     transition: opacity 0.3s ease, border-color 0.3s ease;
 }

 .mono-input:focus {
     opacity: 1;
     border-bottom: 1px solid var(--navy);
 }

 .mono-input::placeholder {
     opacity: 0.4;
     letter-spacing: 0.04em;
 }

 /* button as text (non-button feel) */
 #request-btn {
     background: none;
     border: none;
     cursor: pointer;
     padding: 0;
 }

 #request-btn:hover {
     opacity: 1;
 }

 /* ===== DASHBOARD HIERARCHY ENHANCEMENT ===== */

 .mono-block-hero {
     margin-bottom: 160px;
 }

 .mono-block-core {
     margin-bottom: 140px;
 }

 .mono-strong {
     font-size: 1.05rem;
     letter-spacing: 0.02em;
     opacity: 0.9;
 }

 /* action emphasis but still quiet */
 .mono-block-action {
     margin-top: 80px;
     margin-bottom: 160px;
 }

 .mono-link-primary {
     font-size: 1rem;
     letter-spacing: 0.12em;
     opacity: 0.9;
     color: var(--navy);
     text-decoration: none;
 }

 .mono-link-cta {
     font-size: 1.1rem;
     letter-spacing: 0.14em;
     opacity: 1;
     border-bottom: 1px solid var(--navy);
     padding-bottom: 4px;
     transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
     color: var(--navy);
     text-decoration: none;
 }

 .mono-link-cta:hover {
     letter-spacing: 0.18em;
     opacity: 1;
 }

 .mono-link-primary:hover {
     opacity: 1;
 }

 /* muted settings */
 .mono-block-muted {
     opacity: 0.5;
 }

 .mono-muted {
     opacity: 0.5;
     font-size: 0.85rem;
 }

 /* ===== PAGE TOP OFFSET FIX ===== */
 .mono-container {
     padding-top: 120px;
 }

 /* prevent header overlap on first title */
 .mono-container .mono-block-hero {
     margin-top: 40px;
 }

 /* ===== METHOD PAGE TUNING ===== */

 /* step titles feel slightly more sequential (less aggressive than fit) */
 .method-page .mono-subtitle-strong {
     font-size: clamp(2.8rem, 6vw, 3.6rem);
     letter-spacing: -0.05em;
 }

 /* body slightly more readable (process explanation) */
 .method-page .mono-stack p {
     font-size: 0.85rem;
     line-height: 1.85;
     opacity: 0.65;
 }

 /* ===== METHOD STEPS (GAP SYSTEM) ===== */
 .method-steps-container {
     display: flex;
     flex-direction: column;
     gap: clamp(260px, 28vh, 360px);
     width: 100%;
 }

 .method-step {
     position: relative;
     width: 100%;
 }


 /* ===== METHOD FLOW LOCK (1→2→3 visual gravity) ===== */

 /* remove visual compression caused by transform */
 .method-page .mono-block {
     transform: none;
 }

 /* subtle opacity compression for forward motion perception */
 .method-page .mono-block:nth-of-type(2),
 .method-page .mono-block:nth-of-type(3),
 .method-page .mono-block:nth-of-type(4) {
     opacity: 0.96;
 }

 /* reinforce linear reading by narrowing later steps slightly */
 .method-page .mono-block:nth-of-type(3) .mono-stack>*,
 .method-page .mono-block:nth-of-type(4) .mono-stack>* {
     max-width: 600px;
 }

 /* ===== METHOD STEP NUMBER (BACKGROUND MASS) ===== */

 /* ===== METHOD STEP NUMBER (BACKGROUND MASS) ===== */
 .mono-step-number {
     position: absolute;
     top: 50%;
     left: 50%;
     transform: translate(-50%, -50%);

     font-family: "Sawarabi Mincho", serif;
     font-size: clamp(12rem, 25vw, 20rem);
     letter-spacing: -0.08em;
     line-height: 1;

     opacity: 0.1;

     pointer-events: none;
     z-index: 0;
     white-space: nowrap;
 }

 .mono-step {
     position: relative;
 }

 .mono-step-content {
     position: relative;
     z-index: 1;
 }

 .mono-step-inner {
     position: relative;
 }

 .method-page .mono-step-content {
     padding-left: 8px;
 }

 /* align number and title as a single visual block */
 .method-page .mono-block>.mono-step-number+.mono-subtitle {
     margin-top: 0;
 }

 /* slightly stronger presence and overlap precision on larger screens */
 @media (min-width: 1024px) {
     .mono-step-number {
         font-size: clamp(14rem, 22vw, 22rem);
         opacity: 0.08;
     }
 }

 /* ===== FOOTER MONOLITH (Editorial Stack) ===== */

 .site-footer {
     padding: 160px 0 80px;
     display: flex;
     justify-content: center;
 }

 .footer-inner {
     width: min(90%, 720px);
     margin: 0 auto;

     display: flex;
     flex-direction: column;
     align-items: center;
     text-align: center;

     gap: 28px;
 }

 /* ===== Layer 1: Primary ===== */
 .footer-primary {
     display: flex;
     flex-wrap: wrap;
     justify-content: center;
     gap: 18px;
 }

 .footer-primary .footer-link {
     font-size: 0.9rem;
     letter-spacing: 0.08em;
     opacity: 0.85;
 }

 /* ===== Layer 2: Legal ===== */
 .footer-legal {
     display: flex;
     gap: 16px;
 }

 .footer-legal .footer-link {
     font-size: 0.75rem;
     letter-spacing: 0.06em;
     opacity: 0.6;
 }

 /* ===== Layer 3: Social ===== */
 .footer-social {
     display: flex;
     gap: 14px;
 }

 .footer-social .footer-link {
     font-size: 0.7rem;
     letter-spacing: 0.06em;
     opacity: 0.5;
 }

 /* ===== Layer 4: Copyright ===== */
 .footer-copy {
     font-size: 0.65rem;
     letter-spacing: 0.04em;
     opacity: 0.4;
     margin-top: 8px;
 }

 /* ===== Shared Link Behavior ===== */
 .footer-link {
     text-decoration: none;
     color: var(--navy);
     transition: opacity 0.25s ease;
 }

 .footer-link:hover {
     opacity: 1;
 }

 /* ===== Mobile Tuning ===== */
 @media (max-width: 768px) {
     .site-footer {
         padding: 120px 0 60px;
     }

     .footer-inner {
         gap: 22px;
     }

     .footer-primary {
         gap: 14px;
     }
 }

 /* ===== MONO LABEL (Form Question) ===== */
 .mono-label {
     font-size: 0.75rem;
     letter-spacing: 0.04em;
     opacity: 0.6;
     margin-bottom: 6px;
     display: block;
     text-align: left;
 }

 /* ===== MONO BUTTON (HIGH-END ACTION UI) ===== */

 .mono-btn {
     display: inline-flex;
     align-items: center;
     justify-content: center;

     width: auto !important;

     padding: 0.8rem 2rem;

     background: #003366;
     color: #f7f4ee;

     border-radius: 5px;
     border: 1px solid rgba(0, 0, 0, 0.1);

     font-size: 0.9rem;
     font-weight: 500;
     letter-spacing: 0.08em;
     text-decoration: none;

     box-shadow: none;

     transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1) !important;
 }

 .mono-btn:hover {
     background: #00264d;
     box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
     letter-spacing: 0.1em;
 }

 .mono-btn-secondary {
     display: inline-flex;
     align-items: center;
     justify-content: center;

     width: auto !important;

     padding: 0.8rem 2rem;

     background: transparent;
     color: var(--navy);

     border-radius: 5px;
     border: 1px solid rgba(0, 0, 0, 0.18);

     font-size: 0.9rem;
     font-weight: 500;
     letter-spacing: 0.06em;
     text-decoration: none;

     box-shadow: none;

     transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
 }

 .mono-btn-secondary:hover {
     background: rgba(0, 0, 0, 0.03);
     letter-spacing: 0.1em;
 }

 /* ===== MONO POLICY BOX (Isolation Rule Highlight) ===== */

 .mono-policy-box {
     width: 100%;
     max-width: 640px;

     margin: 40px auto 0;

     padding: 1.2rem 1.6rem;

     border-left: 2px solid #D70000;
     background: rgba(0, 0, 0, 0.06);

     display: flex;
     flex-direction: column;
     align-items: flex-start;

     gap: 12px;
 }

 .mono-policy-box .mono-eyebrow {
     margin-bottom: 4px;
     opacity: 0.6;
 }

 .mono-policy-box .mono-strong {
     font-size: 0.95rem;
     line-height: 1.8;
     letter-spacing: 0.02em;
 }


 /* ===== MOBILE FIRST UX TUNING ===== */
 @media (max-width: 768px) {

     /* --- HERO TYPOGRAPHY --- */
     .hero-title-max {
         font-size: clamp(2.4rem, 8vw, 3.4rem);
         line-height: 1.08;
     }

     /* --- SECTION SPACING --- */
     .section {
         padding: 4rem clamp(18px, 6vw, 30px);
     }

     /* --- BUTTON TAP INTERACTION --- */
     .mono-btn:active {
         filter: brightness(0.92);
         transform: translateY(1px);
         box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
         transition:
             transform 120ms ease,
             filter 260ms ease,
             box-shadow 260ms ease;
     }

     .mono-btn-secondary:active {
         filter: brightness(0.95);
         transform: translateY(1px);
         transition:
             transform 120ms ease,
             filter 260ms ease;
     }

     /* --- LINK TAP FEEDBACK --- */
     a:active {
         opacity: 0.7;
         transition: opacity 180ms ease;
     }


     /* ===== MOBILE NAV (COMBO MENU) ===== */

     .nav-drawer {
         position: fixed;
         top: 0;
         right: 0;
         height: 100vh;
         width: 40vw;

         display: flex;
         flex-direction: column;
         align-items: flex-start;
         justify-content: flex-start;
         gap: 36px;

         padding: 116px 28px 36px;

         background: rgba(255, 255, 255, 0.78);
         backdrop-filter: blur(40px) saturate(170%);
         -webkit-backdrop-filter: blur(40px) saturate(170%);
         box-shadow: -18px 0 44px rgba(0, 0, 0, 0.12);
         border-left: 1px solid rgba(255, 255, 255, 0.45);
         z-index: 105;

         opacity: 0;
         pointer-events: none;
         transform: translateX(110%);

         transition:
             transform 0.62s cubic-bezier(0.22, 1, 0.36, 1),
             opacity 0.42s ease;
     }

     .nav-default,
     .nav-private {
         flex-direction: column;
         width: 100%;
         align-items: flex-start;
         justify-content: flex-start;
         text-align: left;
         gap: 18px;
     }

     /* enforce auth visibility in mobile drawer */
     .site-header:not(.is-logged-in) .nav-default {
         display: flex !important;
     }

     .site-header:not(.is-logged-in) .nav-private {
         display: none !important;
     }

     .site-header.is-logged-in .nav-default {
         display: none !important;
     }

     .site-header.is-logged-in .nav-private {
         display: flex !important;
     }


     /* ===== HAMBURGER (MONO) ===== */

     .mono-hamburger {
         display: flex;
         flex-direction: column;
         justify-content: center;
         gap: 5px;

         width: 32px;
         height: 32px;

         background: transparent;
         border: none;
         cursor: pointer;
         z-index: 110;
         margin-right: 10px;
         transform: translateX(-4px);
         position: relative;
     }

     .mono-hamburger-bar {
         width: 20px;
         height: 1px;
         background: var(--navy);
         opacity: 0.8;

         transition:
             transform 0.6s cubic-bezier(0.25, 1, 0.5, 1),
             opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1);
     }

     /* ===== NAV COMBO STRUCTURE ===== */

     .nav-combo[data-state="open"] .nav-drawer {
         opacity: 1;
         transform: translateX(0);
         pointer-events: auto;
     }

     /* hamburger animation (parent-based, robust) */
     .nav-combo[data-state="open"] .mono-hamburger-bar:nth-child(1) {
         transform: translateY(6px) rotate(45deg);
     }

     .nav-combo[data-state="open"] .mono-hamburger-bar:nth-child(2) {
         opacity: 0;
     }

     .nav-combo[data-state="open"] .mono-hamburger-bar:nth-child(3) {
         transform: translateY(-6px) rotate(-45deg);
     }

     /* spacing */
     .nav-default .header-link {
         font-size: 0.95rem;
         letter-spacing: 0.08em;
         opacity: 0.8;
         width: 100%;
         text-align: left;
     }

     .header-inner {
         gap: 12px;
         padding: 20px 6vw;
     }

     /* --- HERO SYMBOL & LOGO TUNING --- */
     .hero-symbol-inline {
         width: 135vw;
         max-width: 800px;
     }

     .header-logo {
         height: 75px;
     }
 }