/* ==============================
   TIHNA — Complete Stylesheet
   Dark premium · Teal #00C9A7
   Cabinet Grotesk + Satoshi
   ============================== */

/* --- TOKENS --- */
:root {
  --bg:        #09090B;
  --surface:   #111113;
  --surface2:  #18181B;
  --surface3:  #222225;
  --border:    rgba(255,255,255,0.08);
  --divider:   rgba(255,255,255,0.05);
  --text:      #F4F4F5;
  --muted:     #A1A1AA;
  --faint:     #52525B;
  --teal:      #00C9A7;
  --teal-dim:  rgba(0,201,167,0.10);
  --teal-glow: 0 0 40px rgba(0,201,167,0.18);
  --blue:      #7DD3FC;
  --purple:    #A78BFA;
  --amber:     #F59E0B;
  --font-d:    'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-b:    'Satoshi', 'Inter', sans-serif;
  --ease:      cubic-bezier(0.16,1,0.3,1);
}

/* --- RESET --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--font-b);font-size:clamp(1rem,.95rem+.25vw,1.125rem);color:var(--text);background:var(--bg);min-height:100dvh;line-height:1.65;overflow-x:hidden}
img,svg{display:block;max-width:100%;height:auto}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-d);line-height:1.1;text-wrap:balance}
p,li{text-wrap:pretty}
::selection{background:rgba(0,201,167,.2);color:var(--text)}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}
ul{list-style:none}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* --- LAYOUT HELPERS --- */
.container{width:100%;max-width:1440px;margin-inline:auto;padding-inline:clamp(1.5rem,4vw,5rem)}
.section{padding-block:clamp(5rem,9vw,10rem)}
.teal{color:var(--teal)}
.teal-text{color:var(--teal)}
.left-align{text-align:left}
.mt-8{margin-top:2rem}

/* --- BUTTONS --- */
.btn-primary{display:inline-flex;align-items:center;gap:.5rem;background:var(--teal);color:#09090B;font-family:var(--font-b);font-weight:700;border-radius:9999px;border:none;cursor:pointer;transition:background 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease)}
.btn-primary:hover{background:#00b396;transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,201,167,.3)}
.btn-ghost{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.06);color:var(--text);font-family:var(--font-b);font-weight:600;border-radius:9999px;border:1px solid var(--border);cursor:pointer;transition:background 180ms var(--ease)}
.btn-ghost:hover{background:rgba(255,255,255,.11)}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:transparent;color:var(--text);font-family:var(--font-b);font-weight:600;border-radius:9999px;border:1px solid var(--border);cursor:pointer;transition:border-color 180ms var(--ease),color 180ms var(--ease)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal)}
.btn-sm{font-size:.875rem;padding:.45rem 1.1rem}
.btn-lg{font-size:1rem;padding:.9rem 2.25rem}
.btn-full{width:100%;justify-content:center}

/* --- NAV --- */
.nav{position:sticky;top:0;z-index:100;background:rgba(9,9,11,.88);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--divider)}
.nav-inner{display:flex;align-items:center;gap:2.5rem;max-width:1440px;margin-inline:auto;padding-inline:clamp(1.5rem,4vw,5rem);height:68px}
.logo{display:flex;align-items:center;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:2rem;flex:1}
.nav-links a{font-size:.875rem;font-weight:500;color:var(--muted);transition:color 180ms var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:.75rem;margin-left:auto}
.hamburger{display:none;flex-direction:column;gap:5px;padding:.375rem}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all 180ms var(--ease)}
.mobile-menu{display:none;flex-direction:column;gap:1rem;padding:1.5rem clamp(1.25rem,5vw,3rem) 2rem;border-top:1px solid var(--divider)}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1rem;font-weight:500;color:var(--muted)}
.mobile-menu .btn-primary{align-self:flex-start;margin-top:.5rem}
@media(max-width:900px){.nav-links{display:none}.nav-right .btn-primary{display:none}.hamburger{display:flex}}
@media(max-width:900px){.nav-right .btn-sm:not(.hamburger){display:none}}

/* --- HERO --- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-start;overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40}
.hero-fade-top{position:absolute;inset:0;background:linear-gradient(180deg,var(--bg) 0%,transparent 20%)}
.hero-fade-bottom{position:absolute;inset:0;background:linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
#heroCanvas{position:absolute;bottom:0;left:0;right:0;width:100%;height:140px;opacity:.6;pointer-events:none}
.hero-content{position:relative;z-index:2;text-align:center;width:100%;max-width:1440px;margin-inline:auto;padding-inline:clamp(1.5rem,5vw,6rem);padding-block:clamp(2.5rem,6vw,8rem);display:flex;flex-direction:column;align-items:center;gap:2rem}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap;flex-wrap:nowrap;font-size:.8125rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--teal);background:rgba(0,201,167,.08);border:1px solid rgba(0,201,167,.2);border-radius:9999px;padding:.45rem 1.375rem}
.hero h1{font-size:clamp(3rem,1rem+5.8vw,8.5rem);font-weight:900;letter-spacing:-.04em;max-width:26ch;line-height:1.0}
.hero-sub{font-size:clamp(1.0625rem,.95rem+.6vw,1.375rem);color:var(--muted);max-width:68ch;line-height:1.85}
.hero-cta-group{display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap;justify-content:center;margin-top:.75rem;width:100%}
.hero-stats{display:flex;align-items:center;gap:3rem;flex-wrap:wrap;justify-content:center;margin-top:1.75rem;padding-top:2rem;border-top:1px solid var(--divider)}
.stat{display:flex;flex-direction:column;align-items:center;gap:2px}
.stat-num{font-family:var(--font-d);font-size:clamp(1.75rem,1.4rem+1.1vw,2.75rem);font-weight:900;color:var(--teal)}
.stat-label{font-size:.875rem;color:var(--muted)}
.stat-divider{width:1px;height:52px;background:var(--border)}

/* --- PROBLEM STRIP --- */
.problem-strip{background:rgba(0,201,167,.06);border-top:1px solid rgba(0,201,167,.12);border-bottom:1px solid rgba(0,201,167,.12);padding-block:2rem}
.problem-strip p{max-width:1440px;margin-inline:auto;padding-inline:clamp(1.5rem,4vw,5rem);font-size:clamp(1rem,.95rem+.3vw,1.125rem);color:var(--muted);text-align:center;line-height:1.8}
.problem-strip strong{color:var(--text)}

/* --- SECTION LABELS/TITLES --- */
.section-label{font-size:.875rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal);margin-bottom:1rem}
.section-title{font-size:clamp(2.375rem,1.2rem+3vw,4.5rem);font-weight:900;margin-bottom:1.5rem;letter-spacing:-.03em}
.section-sub{font-size:clamp(1rem,.95rem+.25vw,1.175rem);color:var(--muted);max-width:80ch;line-height:1.9;margin-bottom:0}

/* --- PROGRAMS SECTION --- */
.programs-section .container{text-align:center}
.programs-section .section-sub{margin-inline:auto;margin-bottom:3.5rem}
.programs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;text-align:left}
@media(max-width:900px){.programs-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.programs-grid{grid-template-columns:1fr}}

.program-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:2.25rem;display:flex;flex-direction:column;gap:1.5rem;transition:transform 200ms var(--ease),border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.program-card:hover{transform:translateY(-4px);border-color:rgba(0,201,167,.25);box-shadow:var(--teal-glow)}
.program-card--featured{border-color:rgba(0,201,167,.3);background:linear-gradient(150deg,rgba(0,201,167,.07) 0%,var(--surface) 60%);position:relative}
.featured-tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--teal);color:#09090B;font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:.3rem .9rem;border-radius:9999px;white-space:nowrap}

.program-top{display:flex;align-items:center;gap:.875rem}
.program-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sleep-icon{background:rgba(0,201,167,.1);color:var(--teal)}
.calm-icon{background:rgba(125,211,252,.1);color:var(--blue)}
.focus-icon{background:rgba(167,139,250,.1);color:var(--purple)}
.program-name{font-family:var(--font-d);font-size:1.2rem;font-weight:800;line-height:1.2}
.program-hz{font-size:.75rem;color:var(--teal);font-weight:600;font-variant-numeric:tabular-nums;margin-top:2px}

.wave-canvas{width:100%;height:52px;border-radius:8px;background:var(--surface2);display:block}

.program-outcome{background:var(--surface2);border-radius:12px;padding:1rem 1.125rem;border-left:3px solid var(--teal)}
.outcome-big{font-family:var(--font-d);font-size:clamp(1.75rem,1.5rem+.8vw,2.25rem);font-weight:900;color:var(--teal);line-height:1}
.outcome-label{font-size:.78rem;color:var(--muted);margin-top:.25rem;line-height:1.5}

.program-desc{font-size:.875rem;color:var(--muted);line-height:1.7}

.program-citation{display:flex;align-items:center;gap:.4rem;font-size:.78rem}
.program-citation svg{color:var(--teal);flex-shrink:0}
.program-citation a{color:var(--teal);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(0,201,167,.35);transition:text-decoration-color 150ms}
.program-citation a:hover{text-decoration-color:var(--teal)}

.program-free-note{font-size:.75rem;font-weight:600;color:var(--muted);margin-top:auto}
.programs-disclaimer{font-size:.78rem;color:var(--faint);max-width:640px;margin-inline:auto;margin-top:2.5rem;line-height:1.7}

/* --- APP SECTION --- */
.app-section{background:var(--surface);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.app-inner{display:grid;grid-template-columns:1.15fr 0.85fr;gap:clamp(4rem,7vw,9rem);align-items:center}
@media(max-width:900px){.app-inner{grid-template-columns:1fr}.app-mockup{order:-1;max-width:360px;margin-inline:auto}}
.app-text{display:flex;flex-direction:column;gap:1.75rem}
.feature-list{display:flex;flex-direction:column;gap:1.1rem}
.feature-item{display:flex;align-items:flex-start;gap:1rem;font-size:clamp(.9375rem,.9rem+.2vw,1.0625rem);color:var(--muted);line-height:1.75}
.feature-item strong{color:var(--text)}
.feature-dot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex-shrink:0;margin-top:.45rem}
.app-mockup img{width:100%;max-width:460px;border-radius:28px;box-shadow:var(--teal-glow),0 40px 100px rgba(0,0,0,.6);margin-inline:auto;transition:transform 300ms var(--ease)}
.app-mockup img:hover{transform:scale(1.02) rotate(-1deg)}

/* --- SCIENCE --- */
.science-section{position:relative;overflow:hidden}
.science-bg{position:absolute;inset:0;pointer-events:none}
.science-bg img{width:100%;height:100%;object-fit:cover;opacity:.15}
.science-overlay{position:absolute;inset:0;background:linear-gradient(180deg,var(--bg) 0%,rgba(9,9,11,.88) 40%,rgba(9,9,11,.88) 60%,var(--bg) 100%);pointer-events:none;z-index:0}
.science-inner{position:relative;z-index:2;text-align:center}
.science-inner .section-sub{margin-inline:auto;margin-bottom:3rem}

.studies-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.75rem;text-align:left;margin-bottom:3rem}
@media(max-width:760px){.studies-grid{grid-template-columns:1fr}}

/* Study cards ARE real links — make them feel clickable */
.study-card{display:flex;gap:1.5rem;align-items:flex-start;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:20px;padding:2rem;cursor:pointer;transition:background 200ms var(--ease),border-color 200ms var(--ease),transform 200ms var(--ease);text-decoration:none;color:inherit;position:relative;z-index:3;-webkit-tap-highlight-color:rgba(0,201,167,.15);touch-action:manipulation}
.study-card:hover{background:rgba(0,201,167,.06);border-color:rgba(0,201,167,.28);transform:translateY(-3px)}
.study-card:active{background:rgba(0,201,167,.1);border-color:rgba(0,201,167,.4);transform:scale(0.98)}
.study-card:focus-visible{outline:2px solid var(--teal);outline-offset:3px}
.study-hz{font-family:var(--font-d);font-size:clamp(1.5rem,1.2rem+.8vw,2rem);font-weight:900;color:var(--teal);flex-shrink:0;min-width:64px;line-height:1.1}
.study-body{display:flex;flex-direction:column;gap:.4rem}
.study-result{font-size:1.0625rem;font-weight:700;color:#fff;line-height:1.35}
.study-detail{font-size:.9375rem;color:rgba(255,255,255,.5);line-height:1.7}
.study-source{font-size:.78rem;color:var(--teal);font-weight:600;margin-top:.25rem;display:flex;align-items:center;gap:.3rem}
.study-source::after{content:'↗';font-size:.7rem;opacity:.8}
.science-note{font-size:clamp(.9375rem,.9rem+.25vw,1.0625rem);color:rgba(255,255,255,.45);max-width:1000px;margin-inline:auto;line-height:1.85}

/* --- HOW IT WORKS --- */
.steps-section{background:var(--surface);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider)}
.steps-section .section-title{margin-bottom:3.5rem}
.steps-list{max-width:100%;display:grid;grid-template-columns:repeat(2,1fr);gap:0 5rem}@media(max-width:900px){.steps-list{grid-template-columns:1fr;max-width:680px;margin-inline:auto}}
.step-row{display:grid;grid-template-columns:68px 1fr;gap:1.75rem;align-items:start;padding-bottom:3rem;position:relative}
.step-row:not(:last-child)::after{content:'';position:absolute;left:32px;top:60px;width:2px;height:calc(100% - 32px);background:linear-gradient(to bottom,var(--teal),rgba(0,201,167,.1));opacity:.3}@media(min-width:860px){.step-row:nth-child(2)::after{display:none}}
.step-num{width:60px;height:60px;border-radius:14px;background:var(--teal-dim);border:1px solid rgba(0,201,167,.2);color:var(--teal);font-family:var(--font-d);font-weight:900;font-size:1.125rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;letter-spacing:-.01em}
.step-content h3{font-size:clamp(1.125rem,1rem+.5vw,1.5rem);font-weight:700;margin-bottom:.75rem}
.step-content p{font-size:clamp(.9375rem,.9rem+.2vw,1.0625rem);color:var(--muted);line-height:1.85}

/* --- COMPARISON --- */
.comparison-section{}
.comparison-section .section-title{margin-bottom:2.5rem}
.comparison-wrap{overflow-x:auto;border-radius:20px;border:1px solid var(--border)}
.compare-table{width:100%;border-collapse:collapse;font-size:.9375rem}
.compare-table th,.compare-table td{padding:1.125rem 1.5rem;text-align:center;border-bottom:1px solid var(--divider)}
.compare-table th:first-child,.compare-table td:first-child{text-align:left;color:var(--muted)}
.compare-table thead tr{background:var(--surface2)}
.compare-table thead th{font-family:var(--font-d);font-weight:700;font-size:.875rem}
.compare-table tbody tr{background:var(--surface);transition:background 150ms}
.compare-table tbody tr:hover{background:var(--surface2)}
.compare-table tbody tr:last-child td{border-bottom:none}
.tihna-col{background:rgba(0,201,167,.05)!important}
.compare-table .tihna-col th,.compare-table .tihna-col{color:var(--teal);font-weight:600}
.yes{color:var(--teal);font-weight:700}
.no{color:var(--faint)}
.partial{color:var(--amber)}

/* --- PRICING --- */
.pricing-section .section-title,.pricing-section .section-label{text-align:center}
.pricing-section .section-sub{text-align:center;margin-inline:auto;margin-bottom:3.5rem}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;align-items:start}
@media(max-width:900px){.pricing-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.pricing-grid{grid-template-columns:1fr;max-width:520px;margin-inline:auto}}

.price-card{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:2.5rem;display:flex;flex-direction:column;gap:1.5rem;position:relative}
.price-card--hero{border-color:var(--teal);background:linear-gradient(150deg,rgba(0,201,167,.08) 0%,var(--surface) 60%);box-shadow:var(--teal-glow)}
.price-card--lifetime{border-color:rgba(245,158,11,.25)}
.price-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--teal);color:#09090B;font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:.3rem .9rem;border-radius:9999px;white-space:nowrap}
.price-badge--gold{background:var(--amber);color:#1a0f00}
.price-card h3{font-family:var(--font-d);font-size:1.2rem;font-weight:800}
.price-amount{font-family:var(--font-d);font-size:clamp(2rem,1.6rem+.8vw,2.6rem);font-weight:900;line-height:1.1;letter-spacing:-.03em}
.price-period{font-size:.875rem;color:var(--muted);font-family:var(--font-b);font-weight:400;letter-spacing:0}
.price-sub-note{font-size:.78rem;color:var(--teal);font-weight:600;margin-top:-.5rem}
.price-features{display:flex;flex-direction:column;gap:.625rem;flex:1}
.price-features li{font-size:.875rem;color:var(--muted);display:flex;align-items:center;gap:.5rem}
.price-features li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--teal);flex-shrink:0}
.price-note{font-size:.75rem;color:var(--faint);text-align:center}

/* --- WAITLIST --- */
.waitlist-section{position:relative;overflow:hidden;background:var(--bg)}
.waitlist-bg{position:absolute;inset:0;pointer-events:none}
.waitlist-bg::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 50% 100%,rgba(0,201,167,.1) 0%,transparent 70%)}
#ctaCanvas{width:100%;height:100%;opacity:.3}
.waitlist-inner{position:relative;z-index:2;text-align:center;display:flex;flex-direction:column;align-items:center;gap:2rem;max-width:1000px;margin-inline:auto}
.waitlist-inner .section-title{font-size:clamp(2.75rem,1.5rem+4.5vw,6rem)}

.waitlist-form{width:100%;max-width:680px}
.form-row{display:flex;gap:.75rem;flex-wrap:wrap}
.email-input{flex:1;min-width:240px;background:var(--surface2);border:1px solid var(--border);border-radius:9999px;padding:.75rem 1.5rem;font-size:.9375rem;font-family:var(--font-b);color:var(--text);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);outline:none}
.email-input::placeholder{color:var(--faint)}
.email-input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,201,167,.12)}
.form-submit{white-space:nowrap;flex-shrink:0}
#formStatus{font-size:.875rem;color:var(--teal);min-height:1.2em;margin-top:.75rem;font-weight:600}
.form-privacy{font-size:.75rem;color:var(--faint);margin-top:.5rem}
.waitlist-disclaimer{font-size:.75rem;color:var(--faint)}

/* --- FOOTER --- */
.footer{background:var(--surface);border-top:1px solid var(--divider);padding-top:clamp(3rem,6vw,5rem)}
.footer-inner{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:clamp(2rem,4vw,4rem);padding-bottom:3rem}
@media(max-width:768px){.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-inner{grid-template-columns:1fr}}
.footer-brand{display:flex;flex-direction:column;gap:1rem}
.footer-brand p{font-size:.875rem;color:var(--muted);line-height:1.7}
.footer-links{display:contents}
.footer-col{display:flex;flex-direction:column;gap:.625rem}
.footer-col h4{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:.375rem}
.footer-col a{font-size:.8125rem;color:var(--muted);transition:color 150ms var(--ease);line-height:1.5}
.footer-col a:hover{color:var(--teal)}
.footer-bottom{border-top:1px solid var(--divider);padding-block:1.25rem}
.footer-bottom p{font-size:.72rem;color:var(--faint);text-align:center;line-height:1.75;max-width:none}

/* --- INSIGHT BRIDGE --- */
.insight-bridge{background:rgba(255,255,255,.03);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);padding-block:3.5rem}
.insight-bridge__text{max-width:1100px;margin-inline:auto;padding-inline:clamp(1.5rem,4vw,5rem);font-size:clamp(1.0625rem,1rem+.4vw,1.3125rem);color:var(--muted);text-align:center;line-height:1.9;font-style:normal}
.insight-bridge__text em{color:var(--text);font-style:italic;font-weight:500}


/* ============================================================
   RESPONSIVE BREAKPOINTS — Full device coverage
   xl   ≥ 1440px  (large desktop, 4K)
   lg   1280–1439 (MacBook 13/15)
   md   1024–1279 (iPad landscape, small laptop)
   sm   768–1023  (iPad portrait)
   xs   480–767   (large phone landscape / small tablet)
   2xs  ≤ 479     (iPhone SE → iPhone 16 Pro Max)
   ============================================================ */

/* ── xl: 1440px+ — fill the full viewport width ── */
@media (min-width: 1440px) {
  .hero h1 { font-size: clamp(5rem,4.5vw,8.5rem); }
  .section-title { font-size: clamp(3rem,2.8vw,4.5rem); }
  .programs-grid { grid-template-columns: repeat(3,1fr); }
  .pricing-grid  { grid-template-columns: repeat(3,1fr); }
  .steps-list    { grid-template-columns: repeat(2,1fr); }
}

/* ── lg: MacBook 13/15 (1280–1439px) ── */
@media (max-width: 1439px) and (min-width: 1280px) {
  .hero h1 { font-size: clamp(3.5rem,4vw,6rem); }
  .section-title { font-size: clamp(2.5rem,3vw,4rem); }
}

/* ── md: iPad landscape + small laptop (1024–1279px) ── */
@media (max-width: 1279px) and (min-width: 1024px) {
  .hero h1 { font-size: clamp(3rem,4.5vw,5.5rem); max-width:20ch; }
  .hero-sub { font-size: clamp(1rem,1.5vw,1.25rem); max-width:58ch; }
  .section-title { font-size: clamp(2.25rem,3.5vw,3.5rem); }
  .programs-grid { grid-template-columns: repeat(3,1fr); gap:1.5rem; }
  .pricing-grid  { grid-template-columns: repeat(3,1fr); gap:1.5rem; }
  .steps-list    { grid-template-columns: repeat(2,1fr); gap:0 3rem; }
}

/* ── sm: iPad portrait (768–1023px) ── */
@media (max-width: 1023px) and (min-width: 768px) {
  .container { padding-inline: clamp(1.5rem,4vw,3rem); }
  .hero h1 { font-size: clamp(2.75rem,5vw,4.5rem); max-width:22ch; }
  .hero-sub { font-size: clamp(.9375rem,1.5vw,1.125rem); max-width:56ch; }
  .hero { min-height: auto; }
  .hero-content { padding-block: clamp(3rem,6vw,5.5rem); }
  .section-title { font-size: clamp(2rem,3.5vw,3rem); }
  .section-sub { max-width:65ch; }
  .programs-grid { grid-template-columns: repeat(2,1fr); gap:1.25rem; }
  .pricing-grid  { grid-template-columns: repeat(2,1fr); gap:1.25rem; }
  .steps-list    { grid-template-columns: 1fr; max-width:600px; margin-inline:auto; }
  .app-inner     { grid-template-columns: 1fr; }
  .app-mockup    { order:-1; max-width:360px; margin-inline:auto; }
  .studies-grid  { grid-template-columns: repeat(2,1fr); }
  .footer-inner  { grid-template-columns: 1fr 1fr; gap:2.5rem; }
  .insight-bridge__text { font-size:1rem; max-width:90%; }
}

/* ── xs: Large phone / small tablet (480–767px) ── */
@media (max-width: 767px) and (min-width: 480px) {
  .container { padding-inline: 1.5rem; }
  .hero { min-height: auto; }
  .hero h1 { font-size: clamp(2.5rem,6vw,3.75rem); max-width:18ch; }
  .hero-sub { font-size: clamp(.9375rem,2vw,1.0625rem); max-width:52ch; }
  .hero-content { padding-inline:1.75rem; padding-block: clamp(3.5rem,8vw,5rem); }
  .hero-cta-group { gap:.875rem; }
  .hero-badge { font-size:.75rem; padding:.35rem 1rem; }
  .hero-stats { gap:1.5rem; }
  .section-title { font-size: clamp(1.875rem,5vw,2.5rem); }
  .section-sub { font-size:.9375rem; max-width:90%; }
  .programs-grid { grid-template-columns: 1fr; max-width:480px; margin-inline:auto; }
  .pricing-grid  { grid-template-columns: 1fr; max-width:480px; margin-inline:auto; }
  .steps-list    { grid-template-columns: 1fr; max-width:540px; margin-inline:auto; }
  .app-inner     { grid-template-columns: 1fr; }
  .app-mockup    { order:-1; max-width:320px; margin-inline:auto; }
  .studies-grid  { grid-template-columns: 1fr; }
  .footer-inner  { grid-template-columns: 1fr 1fr; gap:2rem; }
  .comparison-wrap { font-size:.8125rem; }
  .compare-table th,.compare-table td { padding:.75rem .875rem; }
  .insight-bridge__text { font-size:.9375rem; }
  .science-note { font-size:.9rem; }
}

/* ── 2xs: iPhone SE → iPhone 16 Pro Max (≤ 479px) ── */
@media (max-width: 479px) {
  .container { padding-inline: 1.25rem; }

  /* Nav */
  .nav-inner { padding-inline: 1.25rem; height:60px; }

  /* Hero */
  .hero { min-height: 100svh; align-items:flex-start; }
  .hero-content { padding-inline:1.25rem; padding-block: clamp(3rem,10svh,5rem); gap:1.5rem; }
  .hero-badge { font-size:.7rem; padding:.3rem .875rem; letter-spacing:.07em; white-space:nowrap; }
  .hero h1 { font-size: clamp(2.125rem,8.5vw,3rem); max-width:16ch; line-height:1.06; letter-spacing:-.025em; }
  .hero-sub { font-size:.9375rem; max-width:38ch; line-height:1.75; }
  .hero-cta-group { flex-direction:column; align-items:stretch; gap:.75rem; width:100%; }
  .hero-cta-group .btn-primary, .hero-cta-group .btn-ghost { width:100%; justify-content:center; }
  .btn-lg { font-size:.9375rem; padding:.875rem 1.5rem; }
  .hero-stats { gap:0; padding-top:1.5rem; }
  .stat-divider { height:32px; }
  .stat-num { font-size:1.5rem; }
  .stat-label { font-size:.75rem; }

  /* Sections */
  .section { padding-block: clamp(3rem,8vw,5rem); }
  .section-label { font-size:.75rem; margin-bottom:.75rem; }
  .section-title { font-size: clamp(1.75rem,7.5vw,2.375rem); letter-spacing:-.02em; margin-bottom:1rem; }
  .section-sub { font-size:.9375rem; max-width:100%; line-height:1.75; }

  /* Problem strip */
  .problem-strip { padding-block:1.25rem; }
  .problem-strip p { font-size:.9rem; }

  /* Programs */
  .programs-grid { grid-template-columns:1fr; gap:1.25rem; }
  .program-card { padding:1.5rem; border-radius:18px; }
  .programs-section .section-sub { margin-bottom:2.5rem; }

  /* App section */
  .app-inner { gap:2.5rem; }
  .app-mockup img { max-width:260px; border-radius:20px; }
  .app-text { gap:1.5rem; }
  .feature-list { gap:1rem; }
  .feature-item { font-size:.875rem; }

  /* Science */
  .studies-grid { grid-template-columns:1fr; gap:1rem; }
  .study-card { padding:1.25rem; border-radius:14px; gap:1rem; }
  .study-hz { font-size:1.5rem; min-width:52px; }
  .study-result { font-size:.9375rem; }
  .study-detail { font-size:.8125rem; }
  .science-note { font-size:.875rem; max-width:100%; }
  .science-inner .section-sub { margin-bottom:2.5rem; }

  /* How it works */
  .steps-list { grid-template-columns:1fr; max-width:100%; }
  .step-row { grid-template-columns:56px 1fr; gap:1.25rem; padding-bottom:2rem; }
  .step-num { width:50px; height:50px; font-size:1rem; }
  .step-content h3 { font-size:1.0625rem; }
  .step-content p { font-size:.875rem; }
  .steps-section .section-title { margin-bottom:2.5rem; }

  /* Comparison */
  .comparison-section .section-title { font-size:1.75rem; }
  .compare-table { font-size:.8125rem; }
  .compare-table th,.compare-table td { padding:.625rem .75rem; }

  /* Pricing */
  .pricing-grid { grid-template-columns:1fr; gap:1.25rem; }
  .price-card { padding:1.75rem; border-radius:20px; }
  .price-amount { font-size:2rem; }
  .pricing-section .section-sub { margin-bottom:2.5rem; }

  /* Waitlist */
  .waitlist-inner { max-width:100%; gap:1.5rem; }
  .waitlist-inner .section-title { font-size:clamp(2rem,8vw,2.75rem); }
  .form-row { flex-direction:column; gap:.625rem; }
  .email-input { min-width:0; width:100%; }
  .form-submit { width:100%; justify-content:center; }
  .waitlist-form { max-width:100%; }
  .waitlist-section { padding-block:clamp(3rem,8vw,5rem); }

  /* Insight bridge */
  .insight-bridge { padding-block:2rem; }
  .insight-bridge__text { font-size:.9375rem; }

  /* Footer */
  .footer-inner { grid-template-columns:1fr; gap:2rem; padding-bottom:2rem; }
  .footer-brand p { font-size:.8125rem; }
  .footer-col a { font-size:.8125rem; }
  .footer { padding-top:2.5rem; }
}

/* ── Safe area insets (iPhone notch / Dynamic Island) ── */
@supports (padding: max(0px)) {
  .nav { padding-left: max(0px, env(safe-area-inset-left)); padding-right: max(0px, env(safe-area-inset-right)); }
  .hero-content { padding-left: max(1.25rem, env(safe-area-inset-left)); padding-right: max(1.25rem, env(safe-area-inset-right)); }
  @media (max-width:479px) {
    .footer { padding-bottom: max(1rem, env(safe-area-inset-bottom)); }
    .waitlist-section { padding-bottom: max(3rem, calc(3rem + env(safe-area-inset-bottom))); }
  }
}

/* ── Touch targets — all interactive elements min 44×44px on mobile ── */
@media (max-width: 900px) {
  .nav-links a { min-height: 44px; display:inline-flex; align-items:center; }
  .btn-primary, .btn-ghost, .btn-outline { min-height: 44px; }
  .hamburger { min-width:44px; min-height:44px; justify-content:center; align-items:center; }
}

/* ── Prevent horizontal scroll on all devices ── */
html, body { max-width: 100%; overflow-x: hidden; }
.hero, .problem-strip, .insight-bridge { max-width: 100vw; overflow-x: hidden; }

/* ============================================================
   SCIENCE FINDINGS + BLOG PREVIEW ROWS
   ============================================================ */

.science-findings {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 4rem;
}

/* Each finding = stat column + blog card column */
.finding-row {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
  align-items: center;
  padding: 3rem 0;
}
.finding-row--reverse {
  grid-template-columns: 1fr 1.6fr;
  direction: rtl;
}
.finding-row--reverse > * {
  direction: ltr;
}

.finding-divider {
  height: 1px;
  background: rgba(255,255,255,.07);
  width: 100%;
}

/* LEFT: stat block */
.finding-hz {
  font-family: var(--font-d);
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: .6rem;
}
.finding-number {
  font-family: var(--font-d);
  font-size: clamp(2.8rem, 2rem + 2vw, 4.5rem);
  font-weight: 900;
  color: #fff;
  line-height: 1;
  margin-bottom: .35rem;
}
.finding-vs {
  font-size: .9375rem;
  color: rgba(255,255,255,.45);
  margin-bottom: 1rem;
  line-height: 1.4;
}
.finding-plain {
  font-size: .9375rem;
  color: rgba(255,255,255,.65);
  line-height: 1.65;
  margin-bottom: 1.25rem;
  max-width: 340px;
}
.finding-source-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .875rem;
  font-weight: 700;
  color: var(--teal);
  text-decoration: none;
  background: rgba(0,201,167,.08);
  border: 1.5px solid rgba(0,201,167,.4);
  border-radius: 9999px;
  padding: .6rem 1.25rem;
  min-height: 44px;
  transition: background 160ms, border-color 160ms, transform 120ms;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(0,201,167,.2);
  cursor: pointer;
  position: relative;
  z-index: 10;
}
.finding-source-link:hover {
  background: rgba(0,201,167,.15);
  border-color: var(--teal);
}
.finding-source-link:active {
  background: rgba(0,201,167,.22);
  border-color: var(--teal);
  transform: scale(0.97);
}

/* RIGHT: blog card */
.finding-blog-card {
  display: flex;
  flex-direction: row;
  gap: 1.5rem;
  align-items: center;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: background 200ms, border-color 200ms, transform 200ms;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(0,201,167,.1);
}
.finding-blog-card:hover {
  background: rgba(0,201,167,.05);
  border-color: rgba(0,201,167,.25);
  transform: translateY(-3px);
}
.finding-blog-card:active {
  transform: scale(0.99);
  background: rgba(0,201,167,.08);
}
.finding-blog-img {
  flex-shrink: 0;
  width: 180px;
  height: 140px;
  overflow: hidden;
}
.finding-blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 400ms;
}
.finding-blog-card:hover .finding-blog-img img {
  transform: scale(1.05);
}
.finding-blog-body {
  padding: 1.25rem 1.5rem 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.finding-blog-tag {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--teal);
}
.finding-blog-body h3 {
  font-family: var(--font-d);
  font-size: clamp(.9375rem, .875rem + .3vw, 1.0625rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.35;
  margin: 0;
}
.finding-blog-body p {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
  line-height: 1.6;
  margin: 0;
}
.finding-blog-cta {
  font-size: .8125rem;
  font-weight: 700;
  color: var(--teal);
  margin-top: .25rem;
}

/* Bottom CTA strip */
.science-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
  padding-top: 1rem;
}
.science-bottom__text {
  font-size: clamp(.9375rem, .9rem + .2vw, 1.0625rem);
  color: rgba(255,255,255,.45);
  max-width: 640px;
  line-height: 1.75;
}

/* ---- RESPONSIVE ---- */

/* Large tablet: tighten the blog card image */
@media (max-width: 1100px) {
  .finding-row,
  .finding-row--reverse {
    grid-template-columns: 1fr 1.4fr;
    gap: 2rem;
  }
  .finding-blog-img {
    width: 140px;
    height: 120px;
  }
}

/* Tablet: stack stat above card */
@media (max-width: 860px) {
  .finding-row,
  .finding-row--reverse {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    direction: ltr;
  }
  .finding-row--reverse > * {
    direction: ltr;
  }
  .finding-plain {
    max-width: 100%;
  }
  .finding-blog-img {
    width: 130px;
    height: 110px;
  }
  .finding-blog-body {
    padding: 1rem 1rem 1rem 0;
  }
}

/* Mobile: blog card goes vertical */
@media (max-width: 560px) {
  .finding-row {
    padding: 2rem 0;
  }
  .finding-blog-card {
    flex-direction: column;
    gap: 0;
  }
  .finding-blog-img {
    width: 100%;
    height: 180px;
  }
  .finding-blog-body {
    padding: 1rem 1.25rem 1.25rem;
  }
  .finding-number {
    font-size: 3rem;
  }
  .finding-source-link {
    width: 100%;
    justify-content: center;
    font-size: .9375rem;
    padding: .75rem 1.5rem;
    min-height: 48px;
    margin-top: .25rem;
  }
  .finding-blog-cta {
    font-size: .875rem;
    font-weight: 700;
  }
}

/* =====================================================
   Study Modal — bottom sheet (index.html)
   ===================================================== */
#study-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: flex-end;
  justify-content: center;
}
#study-modal-overlay.is-open { display: flex; }
#study-modal-sheet {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: #111214;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px 20px 0 0;
  padding: 2rem 1.75rem 2.5rem;
  transform: translateY(100%);
  transition: transform 320ms cubic-bezier(0.32,0.72,0,1);
  max-height: 88svh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
#study-modal-sheet.is-visible { transform: translateY(0); }
#study-modal-drag-bar {
  width: 40px; height: 4px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  margin: 0 auto 1.5rem;
}
#study-modal-close {
  position: absolute; top: 1.25rem; right: 1.25rem;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.07); border: none;
  color: #aaa; font-size: 1.25rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 200ms, color 200ms;
}
#study-modal-close:hover { background: rgba(255,255,255,0.14); color: #fff; }
#study-modal-badge {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.3em 0.85em; border-radius: 100px; margin-bottom: 0.6rem;
}
#study-modal-journal { font-size: 0.8rem; color: #666; margin: 0 0 0.6rem; }
#study-modal-title {
  font-family: 'Cabinet Grotesk', sans-serif;
  font-size: 1.15rem; font-weight: 700; color: #fff;
  margin: 0 0 1rem; line-height: 1.35; padding-right: 2rem;
}
#study-modal-stat-box {
  background: rgba(0,201,167,0.08);
  border: 1px solid rgba(0,201,167,0.2);
  border-radius: 10px; padding: 0.75rem 1rem; margin-bottom: 1rem;
}
#study-modal-stat {
  font-family: 'Cabinet Grotesk', sans-serif;
  font-size: 1rem; font-weight: 700; color: #00C9A7;
}
#study-modal-finding {
  font-size: 0.9rem; color: #b0b0b0; line-height: 1.65; margin: 0 0 1.5rem;
}
#study-modal-open-btn {
  display: block; width: 100%; text-align: center;
  background: transparent; border: 1.5px solid rgba(0,201,167,0.45);
  color: #00C9A7; font-family: 'Cabinet Grotesk', sans-serif;
  font-size: 0.95rem; font-weight: 700; padding: 0.875rem 1rem;
  border-radius: 12px; text-decoration: none; margin-bottom: 0.75rem;
  transition: background 200ms, border-color 200ms; min-height: 48px;
}
#study-modal-open-btn:hover { background: rgba(0,201,167,0.08); border-color: #00C9A7; }
#study-modal-cta {
  display: block; width: 100%; text-align: center;
  background: #00C9A7; color: #09090B;
  font-family: 'Cabinet Grotesk', sans-serif;
  font-size: 0.95rem; font-weight: 800; padding: 0.875rem 1rem;
  border-radius: 12px; text-decoration: none;
  transition: opacity 200ms; min-height: 48px;
}
#study-modal-cta:hover { opacity: 0.9; }
@media (min-width: 641px) {
  #study-modal-sheet { border-radius: 20px; margin-bottom: 2rem; max-width: 560px; }
}

/* =====================================================
   Brainwave Spectrum Guide
   ===================================================== */
.spectrum-guide {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
  padding: 1.25rem 1.5rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 14px;
}
.spectrum-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  white-space: nowrap;
  flex-shrink: 0;
}
.spectrum-track {
  display: flex;
  flex: 1;
  align-items: stretch;
  gap: 0;
  position: relative;
}
.spectrum-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #00C9A7, #7DD3FC, #F59E0B, #A78BFA);
  transform: translateY(-50%);
  z-index: 0;
}
.spectrum-node {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  line-height: 1.3;
  position: relative;
  z-index: 1;
  padding-top: 0.25rem;
}
.spectrum-node small {
  display: block;
  font-size: 0.6rem;
  font-weight: 400;
  color: rgba(255,255,255,0.3);
  margin-top: 0.15rem;
}
.spectrum-node::before {
  content: '';
  display: block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #00C9A7;
  margin: 0 auto 0.4rem;
  border: 2px solid #09090B;
}
.spectrum-node:nth-child(1)::before { background: #5B9BD5; }
.spectrum-node:nth-child(2)::before { background: #00C9A7; }
.spectrum-node:nth-child(3)::before { background: #7DD3FC; }
.spectrum-node:nth-child(4)::before { background: #F59E0B; }
.spectrum-node:nth-child(5)::before { background: #A78BFA; }

@media (max-width: 600px) {
  .spectrum-guide {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
  }
  .spectrum-track {
    width: 100%;
  }
  .spectrum-node {
    font-size: 0.6rem;
  }
  .spectrum-node small {
    display: none;
  }
}

/* Spectrum guide — dim (Delta) and active (Tihna waves) node states */
.spectrum-node--dim {
  color: rgba(255,255,255,0.2);
}
.spectrum-node--dim::before {
  background: rgba(255,255,255,0.15) !important;
  border-color: rgba(255,255,255,0.1) !important;
}
.spectrum-node--dim small {
  color: rgba(255,255,255,0.15);
  font-size: 0.55rem;
}
.spectrum-node--tihna {
  color: rgba(255,255,255,0.7);
}
.spectrum-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  text-align: center;
  margin: -1.5rem 0 2.5rem;
  font-style: italic;
}

/* =============================================
   FOUNDERS MODAL — Multi-step waitlist form
   ============================================= */

/* Scarcity bar above waitlist section */
.founders-scarcity-bar {
  background: linear-gradient(90deg, rgba(0,201,167,0.12) 0%, rgba(0,201,167,0.06) 100%);
  border: 1px solid rgba(0,201,167,0.25);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
  max-width: 680px;
  width: 100%;
}
.founders-scarcity-bar .badge {
  background: var(--teal);
  color: #09090B;
  font-family: var(--font-b);
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  white-space: nowrap;
}
.founders-scarcity-bar .scarcity-text {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-b);
}
.founders-scarcity-bar .scarcity-text strong {
  color: var(--teal);
}
.founders-progress-wrap {
  width: 100%;
  max-width: 680px;
}
.founders-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--faint);
  font-family: var(--font-b);
  margin-bottom: 0.4rem;
}
.founders-progress-label span:last-child {
  color: var(--teal);
  font-weight: 700;
}
.founders-progress-bar {
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 9999px;
  overflow: hidden;
}
.founders-progress-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 9999px;
  transition: width 1s cubic-bezier(0.4,0,0.2,1);
}

/* ===== MODAL OVERLAY ===== */
#founders-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
#founders-modal-overlay.is-open {
  display: flex;
}
#founders-modal {
  background: #111113;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 120px rgba(0,0,0,0.8), 0 0 0 1px rgba(0,201,167,0.08);
  animation: modalIn 0.3s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes modalIn {
  from { opacity:0; transform:scale(0.93) translateY(16px); }
  to   { opacity:1; transform:scale(1) translateY(0); }
}
.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  font-size: 1.1rem;
  transition: background 150ms, color 150ms;
  z-index: 10;
  line-height: 1;
  padding: 0;
}
.modal-close-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }

/* Modal header */
.modal-header {
  padding: 2rem 2rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.modal-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(0,201,167,0.12);
  border: 1px solid rgba(0,201,167,0.25);
  border-radius: 9999px;
  padding: 0.3rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.85rem;
}
.modal-badge::before {
  content: '●';
  font-size: 0.5rem;
  animation: pulse-dot 1.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; } 50% { opacity:0.3; }
}
.modal-title {
  font-family: var(--font-d);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  color: #fff;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}
.modal-subtitle {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
  margin: 0;
}
.modal-spots-left {
  margin-top: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #F59E0B;
}
.modal-spots-left svg { flex-shrink: 0; }

/* Step progress dots */
.modal-steps {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 1.25rem 2rem 0;
}
.step-dot {
  height: 3px;
  flex: 1;
  border-radius: 9999px;
  background: rgba(255,255,255,0.1);
  transition: background 0.3s;
}
.step-dot.active { background: var(--teal); }
.step-dot.done { background: rgba(0,201,167,0.4); }
.modal-step-label {
  font-size: 0.72rem;
  color: var(--faint);
  padding: 0.5rem 2rem 0;
  font-family: var(--font-b);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Form body */
.modal-body {
  padding: 1.5rem 2rem 2rem;
}
.modal-step { display: none; }
.modal-step.active { display: block; }

/* Field groups */
.f-group {
  margin-bottom: 1.25rem;
}
.f-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.45rem;
  letter-spacing: 0.02em;
}
.f-group label span.req { color: var(--teal); margin-left: 2px; }
.f-input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  font-family: var(--font-b);
  color: var(--text);
  outline: none;
  transition: border-color 180ms, box-shadow 180ms;
  box-sizing: border-box;
}
.f-input::placeholder { color: rgba(255,255,255,0.2); }
.f-input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0,201,167,0.1);
}
.f-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
@media (max-width: 480px) { .f-row-2 { grid-template-columns: 1fr; } }
select.f-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.3)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
select.f-input option { background: #1a1a1c; color: #fff; }
textarea.f-input {
  resize: vertical;
  min-height: 90px;
  line-height: 1.5;
}

/* Chip selects */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chip-option {
  position: relative;
}
.chip-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.chip-option label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 9999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: all 150ms;
  margin: 0;
  letter-spacing: 0;
}
.chip-option input:checked + label {
  background: rgba(0,201,167,0.14);
  border-color: rgba(0,201,167,0.5);
  color: var(--teal);
}
.chip-option label:hover {
  border-color: rgba(255,255,255,0.22);
  color: rgba(255,255,255,0.9);
}

/* Rating stars */
.star-group {
  display: flex;
  gap: 0.35rem;
}
.star-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: rgba(255,255,255,0.15);
  transition: color 150ms, transform 150ms;
  padding: 0.1rem;
  line-height: 1;
}
.star-btn.active, .star-btn:hover { color: #F59E0B; transform: scale(1.15); }

/* Navigation buttons */
.modal-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}
.btn-modal-back {
  flex: 0 0 auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 9999px;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 150ms;
  font-family: var(--font-b);
}
.btn-modal-back:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-modal-next {
  flex: 1;
  background: var(--teal);
  border: none;
  border-radius: 9999px;
  padding: 0.85rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 800;
  color: #09090B;
  cursor: pointer;
  transition: all 180ms;
  font-family: var(--font-b);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.btn-modal-next:hover { background: #00b396; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(0,201,167,0.3); }
.btn-modal-next:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Success state */
.modal-success {
  text-align: center;
  padding: 3rem 2rem;
}
.modal-success .success-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}
.modal-success h3 {
  font-family: var(--font-d);
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 0.75rem;
}
.modal-success p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
  margin: 0 0 0.5rem;
}
.modal-success .highlight {
  color: var(--teal);
  font-weight: 700;
}
.modal-success .success-perks {
  margin: 1.5rem auto;
  text-align: left;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.modal-success .perk {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  font-weight: 600;
}
.modal-success .perk::before {
  content: '✓';
  color: var(--teal);
  font-weight: 800;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.f-error {
  font-size: 0.75rem;
  color: #f87171;
  margin-top: 0.3rem;
  display: none;
}
.f-error.visible { display: block; }

@media (max-width: 600px) {
  #founders-modal { border-radius: 16px; }
  .modal-header, .modal-body { padding-inline: 1.25rem; }
  .modal-steps, .modal-step-label { padding-inline: 1.25rem; }
}