/* ===== Design Tokens ===== */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;

  --radius-sm: 0.375rem; --radius-md: 0.625rem; --radius-lg: 0.9rem;
  --radius-xl: 1.25rem; --radius-full: 9999px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --content: 1120px;
  --content-narrow: 680px;
}

/* Brand palette — Tiffany blue / teal, white, silver */
:root,
[data-theme='light'] {
  --brand: #0ABAB5;          /* tiffany blue */
  --brand-bright: #0fc8c2;
  --brand-deep: #075E5B;     /* deep teal — text & primary buttons */
  --brand-ink: #053F3D;      /* deepest teal — headings */
  --brand-soft: #E6F6F4;     /* very light teal tint */
  --brand-soft-2: #D2EEEB;

  --silver: #C7CDD0;
  --silver-soft: #E8ECEE;

  --bg: #ffffff;
  --surface: #F7FBFA;
  --surface-2: #EEF7F5;
  --surface-offset: #F2F8F7;
  --border: #D7E5E2;
  --divider: #E2EDEC;

  --text: #14302E;
  --text-muted: #5A6B69;
  --text-faint: #93A3A1;

  --shadow-sm: 0 1px 2px rgba(7, 94, 91, 0.06);
  --shadow-md: 0 6px 22px rgba(7, 94, 91, 0.10);
  --shadow-lg: 0 18px 48px rgba(7, 94, 91, 0.16);
}

[data-theme='dark'] {
  --brand: #2DD4CE;
  --brand-bright: #49DDD7;
  --brand-deep: #7FE7E2;
  --brand-ink: #B6EFEC;
  --brand-soft: #12302E;
  --brand-soft-2: #163a37;

  --silver: #5A6669;
  --silver-soft: #1b2426;

  --bg: #0C1B1A;
  --surface: #112321;
  --surface-2: #152927;
  --surface-offset: #112321;
  --border: #243c3a;
  --divider: #1d3431;

  --text: #DCEAE8;
  --text-muted: #8FA3A0;
  --text-faint: #5d706d;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 6px 22px rgba(0,0,0,0.34);
  --shadow-lg: 0 18px 48px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --brand: #2DD4CE; --brand-bright: #49DDD7; --brand-deep: #7FE7E2;
    --brand-ink: #B6EFEC; --brand-soft: #12302E; --brand-soft-2: #163a37;
    --silver: #5A6669; --silver-soft: #1b2426;
    --bg: #0C1B1A; --surface: #112321; --surface-2: #152927;
    --surface-offset: #112321; --border: #243c3a; --divider: #1d3431;
    --text: #DCEAE8; --text-muted: #8FA3A0; --text-faint: #5d706d;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3); --shadow-md: 0 6px 22px rgba(0,0,0,0.34);
    --shadow-lg: 0 18px 48px rgba(0,0,0,0.45);
  }
}

/* ===== Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;scroll-behavior:smooth;scroll-padding-top:84px}
body{min-height:100dvh;line-height:1.65;font-family:var(--font-body,sans-serif);font-size:var(--text-base);color:var(--text);background:var(--bg);overflow-x:hidden}
img,picture,video,svg{display:block;max-width:100%;height:auto}
ul[role='list']{list-style:none}
input,button,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{text-wrap:balance;line-height:1.14;font-family:var(--font-display,serif);color:var(--brand-ink);letter-spacing:-0.01em}
p,li,figcaption{text-wrap:pretty;max-width:70ch}
::selection{background:rgba(10,186,181,0.22);color:var(--text)}
:focus-visible{outline:2.5px solid var(--brand-deep);outline-offset:3px;border-radius:var(--radius-sm)}
button{cursor:pointer;background:none;border:none}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--brand-ink)}
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

.container{width:100%;max-width:var(--content);margin-inline:auto;padding-inline:clamp(1.25rem,5vw,2.5rem)}

.eyebrow{font-family:var(--font-body);font-size:var(--text-xs);font-weight:600;letter-spacing:0.18em;text-transform:uppercase;color:var(--brand-deep);display:inline-flex;align-items:center;gap:.6em}
.eyebrow::before{content:"";width:28px;height:1.5px;background:var(--brand)}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;font-family:var(--font-body);font-size:var(--text-sm);font-weight:600;line-height:1;padding:0.95em 1.5em;border-radius:var(--radius-full);border:1.5px solid transparent;transition:transform var(--transition),background var(--transition),color var(--transition),box-shadow var(--transition);text-align:center}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--brand-deep);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--brand-ink);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,0.65)}
.btn--ghost:hover{background:rgba(255,255,255,0.12);color:#fff}
.btn--light{background:var(--brand-soft);color:var(--brand-deep)}
.btn--light:hover{background:var(--brand-soft-2);color:var(--brand-ink)}
.btn--block{width:100%}
.btn svg{width:1.1em;height:1.1em}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:60;background:color-mix(in oklab, var(--bg) 86%, transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--divider);transition:box-shadow var(--transition)}
.header--scrolled{box-shadow:var(--shadow-sm)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--brand-ink)}
.brand__mark{height:42px;width:auto;flex:none;object-fit:contain}
.brand__name{font-family:var(--font-display);font-weight:700;font-size:1.06rem;line-height:1.05;color:var(--brand-ink)}
.brand__name span{display:block;font-size:0.66rem;font-weight:600;letter-spacing:0.16em;text-transform:uppercase;color:var(--brand-deep);font-family:var(--font-body);margin-top:2px}
.nav{display:flex;align-items:center;gap:.3rem}
.nav a{font-size:var(--text-sm);font-weight:500;color:var(--text);padding:.5rem .8rem;border-radius:var(--radius-full);white-space:nowrap}
.nav a:hover{color:var(--brand-deep);background:var(--brand-soft)}
.header__actions{display:flex;align-items:center;gap:.5rem}
.theme-toggle{width:40px;height:40px;border-radius:var(--radius-full);display:grid;place-items:center;color:var(--text-muted);border:1px solid var(--border)}
.theme-toggle:hover{color:var(--brand-deep);background:var(--brand-soft)}
.menu-btn{display:none;width:42px;height:42px;border-radius:var(--radius-full);place-items:center;color:var(--brand-ink);border:1px solid var(--border)}
.menu-btn:hover{background:var(--brand-soft)}

/* ===== Hero ===== */
.hero{position:relative;min-height:min(86vh,760px);display:flex;align-items:center;color:#fff;overflow:hidden;isolation:isolate}
.hero__media{position:absolute;inset:0;z-index:-2}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(in oklab, rgba(6,63,61,0.78) 0%, rgba(7,94,91,0.55) 45%, rgba(7,94,91,0.35) 100%)}
.hero__inner{padding-block:clamp(3.5rem,9vw,7rem);max-width:760px}
.hero .eyebrow{color:var(--brand-bright)}
.hero .eyebrow::before{background:var(--brand-bright)}
.hero h1{color:#fff;font-size:var(--text-3xl);font-weight:700;margin-block:.4rem .9rem;text-shadow:0 2px 30px rgba(0,0,0,0.25)}
.hero__sub{font-size:var(--text-lg);color:rgba(255,255,255,0.92);max-width:46ch;margin-bottom:1.8rem}
.hero__sub strong{color:#fff;font-weight:600}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem}
.badge-501{display:inline-flex;align-items:center;gap:.5em;font-size:var(--text-xs);font-weight:600;letter-spacing:0.05em;color:rgba(255,255,255,0.9);border:1px solid rgba(255,255,255,0.4);padding:.4em .9em;border-radius:var(--radius-full);background:rgba(255,255,255,0.08);margin-bottom:1.3rem}

/* ===== Sections ===== */
.section{padding-block:clamp(var(--space-12),7vw,var(--space-24))}
.section--tint{background:var(--surface)}
.section--soft{background:var(--brand-soft)}
.section__head{max-width:var(--content-narrow);margin-bottom:clamp(1.8rem,4vw,3rem)}
.section__head.center{margin-inline:auto;text-align:center}
.section__head.center .eyebrow::before{display:none}
.section__head.center .eyebrow{justify-content:center}
.section h2{font-size:var(--text-2xl);font-weight:700;margin-block:.4rem .8rem}
.section__lead{font-size:var(--text-lg);color:var(--text-muted)}

/* ===== About / Mission ===== */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(1.5rem,5vw,3.5rem);align-items:center}
.split--rev .split__media{order:2}
.split__media{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--border)}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.founder__media{max-width:380px;width:100%;justify-self:center;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);border:6px solid var(--bg);outline:1px solid var(--border)}
.founder__media img{width:100%;object-fit:cover;aspect-ratio:4/5}
.lead-p{font-size:var(--text-lg);color:var(--text);margin-bottom:1rem}
.lead-p.muted{color:var(--text-muted)}
.verse{margin-top:1.6rem;padding:1.4rem 1.6rem;border-left:3px solid var(--brand);background:var(--surface-2);border-radius:0 var(--radius-md) var(--radius-md) 0}
.verse p{font-family:var(--font-display);font-style:italic;font-size:var(--text-lg);color:var(--brand-ink);line-height:1.5}
.verse cite{display:block;margin-top:.6rem;font-style:normal;font-family:var(--font-body);font-size:var(--text-sm);font-weight:600;letter-spacing:0.04em;color:var(--brand-deep)}

/* ===== Cards / Accept grid ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2.5vw,1.6rem)}
.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);padding:clamp(1.4rem,3vw,2rem);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.card__icon{width:54px;height:54px;border-radius:var(--radius-md);display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-deep);margin-bottom:1rem}
.card__icon svg{width:30px;height:30px}
.card h3{font-size:var(--text-lg);font-weight:700;margin-bottom:.2rem}
.card__tag{font-size:var(--text-xs);font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:var(--brand-deep);margin-bottom:.9rem;display:block}
.card ul{margin-top:.6rem;display:grid;gap:.45rem}
.card li{position:relative;padding-left:1.4em;font-size:var(--text-sm);color:var(--text-muted);max-width:none}
.card li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ===== Steps ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,3vw,2rem);counter-reset:step}
.step{position:relative;padding-top:1rem}
.step__num{font-family:var(--font-display);font-weight:700;font-size:2.2rem;color:var(--brand);line-height:1;margin-bottom:.7rem}
.step h3{font-size:var(--text-lg);font-weight:700;margin-bottom:.4rem}
.step p{font-size:var(--text-sm);color:var(--text-muted)}

.feature-media{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--border);margin-top:clamp(1.6rem,4vw,2.4rem)}
.feature-media img{width:100%;aspect-ratio:16/7;object-fit:cover}

/* ===== Get involved ===== */
.involve{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2.5vw,1.6rem)}
.involve__item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:clamp(1.4rem,3vw,1.9rem);text-align:left}
.involve__item h3{font-size:var(--text-lg);font-weight:700;margin:.5rem 0 .3rem}
.involve__item p{font-size:var(--text-sm);color:var(--text-muted);margin-bottom:1rem}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(1.5rem,5vw,3rem);align-items:start}
.contact-info{display:grid;gap:1.1rem}
.contact-row{display:flex;gap:.9rem;align-items:flex-start}
.contact-row__icon{width:42px;height:42px;flex:none;border-radius:var(--radius-full);display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-deep)}
.contact-row__icon svg{width:20px;height:20px}
.contact-row h4{font-size:var(--text-sm);font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:.15rem;font-family:var(--font-body)}
.contact-row p,.contact-row a{font-size:var(--text-base);color:var(--text);font-weight:500}
.contact-row a:hover{color:var(--brand-deep)}

.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:clamp(1.4rem,4vw,2rem);box-shadow:var(--shadow-sm)}
.join-wrap{max-width:680px;margin-inline:auto}
.form-success{display:flex;gap:.9rem;align-items:center;background:var(--brand-soft);border:1px solid var(--brand);border-radius:var(--radius-lg);padding:1.1rem 1.25rem;margin-bottom:1rem;color:var(--text)}
.form-success svg{width:26px;height:26px;flex:0 0 auto;color:var(--brand)}
.form-success strong{display:block;font-size:var(--text-base)}
.form-success span{display:block;font-size:var(--text-sm);color:var(--text-muted)}
.form-card h3{font-size:var(--text-xl);font-weight:700;margin-bottom:.3rem}
.form-card .muted{color:var(--text-muted);font-size:var(--text-sm);margin-bottom:1.4rem}
.field{margin-bottom:1rem}
.field label{display:block;font-size:var(--text-xs);font-weight:600;letter-spacing:0.05em;text-transform:uppercase;color:var(--text-muted);margin-bottom:.4rem}
.field input,.field textarea,.field select{width:100%;padding:.85rem 1rem;border:1.5px solid var(--border);border-radius:var(--radius-md);background:var(--bg);color:var(--text);font-size:var(--text-base);transition:border-color var(--transition),box-shadow var(--transition)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.field textarea{resize:vertical;min-height:90px}
.form-note{font-size:var(--text-xs);color:var(--text-faint);margin-top:.8rem;text-align:center}

/* ===== Footer ===== */
.footer{background:var(--brand-ink);color:rgba(255,255,255,0.82);padding-block:clamp(2.4rem,5vw,3.4rem) 1.6rem}
.footer *{color:inherit}
.footer__top{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between;align-items:center;padding-bottom:1.6rem;border-bottom:1px solid rgba(255,255,255,0.16)}
.footer .brand__name{color:#fff}
.footer .brand__name span{color:var(--brand-bright)}
.footer .brand__mark{color:var(--brand-bright)}
.footer__nav{display:flex;flex-wrap:wrap;gap:1.2rem}
.footer__nav a{font-size:var(--text-sm);color:rgba(255,255,255,0.82)}
.footer__nav a:hover{color:#fff}
.footer__bottom{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;justify-content:space-between;align-items:center;padding-top:1.4rem;font-size:var(--text-xs);color:rgba(255,255,255,0.66)}
.footer__phone{font-family:var(--font-display);font-weight:700;font-size:1.15rem;color:#fff}
.footer__email{font-weight:600;color:#fff;text-decoration:none}
.footer__email:hover{color:var(--brand)}

/* ===== Reveal (progressive enhancement — content visible without JS) ===== */
.reveal{opacity:1;transform:none}
html.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
html.js .reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:880px){
  .nav,.header__actions .btn--light{display:none}
  .menu-btn{display:grid}
  .split,.contact-grid{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .cards,.involve,.steps{grid-template-columns:1fr}
}
@media (max-width:560px){
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
}

/* Mobile nav drawer */
.drawer{position:fixed;inset:0 0 0 auto;width:min(82vw,340px);background:var(--bg);border-left:1px solid var(--border);box-shadow:var(--shadow-lg);transform:translateX(100%);transition:transform var(--transition);z-index:80;padding:1.2rem;display:flex;flex-direction:column;gap:.3rem}
.drawer.open{transform:none}
.drawer a{padding:.85rem 1rem;border-radius:var(--radius-md);font-size:var(--text-base);font-weight:500;color:var(--text)}
.drawer a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.drawer .btn{margin-top:1rem}
.scrim{position:fixed;inset:0;background:rgba(6,40,38,0.5);opacity:0;visibility:hidden;transition:opacity var(--transition);z-index:70}
.scrim.open{opacity:1;visibility:visible}