/* ==========================================================================
   Sourav Dikshit — site styles
   Apple-inspired: the system font (San Francisco on Apple devices), quiet
   greys, generous space, one blue for actions. Every page uses this file.
   ========================================================================== */

/* ---------- Colors (light, then dark) ---------- */
:root{
  --bg:#FFFFFF; --alt:#F5F5F7; --tile:#F5F5F7; --tile-on-alt:#FFFFFF;
  --ink:#1D1D1F; --ink2:#424245; --muted:#6E6E73; --line:#D2D2D7;
  --blue:#0071E3; --blue-hover:#0077ED; --link:#0066CC;
  --navy:#1A2A49; --navy-ink:#F5F5F7; --navy-muted:#B4BED0; --navy-link:#6CB0FF;
  --nav:rgba(255,255,255,.8); --nav-line:rgba(0,0,0,.08);
  --nav-h:48px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Inter","Helvetica Neue",Helvetica,Arial,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#000000; --alt:#101012; --tile:#1D1D1F; --tile-on-alt:#1D1D1F;
    --ink:#F5F5F7; --ink2:#D2D2D7; --muted:#A1A1A6; --line:#3A3A3C;
    --link:#2997FF; --nav:rgba(22,22,23,.8); --nav-line:rgba(255,255,255,.1);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#000000; --alt:#101012; --tile:#1D1D1F; --tile-on-alt:#1D1D1F;
  --ink:#F5F5F7; --ink2:#D2D2D7; --muted:#A1A1A6; --line:#3A3A3C;
  --link:#2997FF; --nav:rgba(22,22,23,.8); --nav-line:rgba(255,255,255,.1);
  color-scheme:dark;
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.47 var(--font);letter-spacing:-.022em;-webkit-font-smoothing:antialiased;padding-top:env(safe-area-inset-top,0px)}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:600;text-wrap:balance}
p{text-wrap:pretty}
img{max-width:100%}
a{color:var(--link)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--blue);color:#fff;padding:10px 16px;border-radius:980px;text-decoration:none}
.skip:focus{top:10px}

.wrap{width:100%;max-width:1024px;margin-inline:auto;padding-inline:clamp(16px,4vw,22px)}
.wrap-narrow{max-width:740px}
.center{text-align:center}
.sec{padding-block:clamp(72px,10vw,120px)}
.sec-alt{background:var(--alt)}
.inline{color:var(--link);text-decoration:none}
.inline:hover{text-decoration:underline}

/* ---------- Type scale ---------- */
.eyebrow{font-size:clamp(17px,2vw,21px);font-weight:600;color:var(--muted);letter-spacing:-.01em}
.h-display{font-size:clamp(48px,8vw,80px);line-height:1.04;letter-spacing:-.015em;font-weight:600}
.h-sec{font-size:clamp(32px,5vw,56px);line-height:1.07;letter-spacing:-.005em;font-weight:600}
.tagline{font-size:clamp(24px,3.4vw,32px);line-height:1.2;letter-spacing:-.01em;font-weight:600}
.lead{font-size:clamp(19px,2.2vw,21px);line-height:1.42;color:var(--muted);letter-spacing:-.015em}
.fine{font-size:12px;color:var(--muted);letter-spacing:-.01em}
.fine a{color:var(--muted)}

/* ---------- Global nav ---------- */
.gnav{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--nav);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--nav-line)}
.gnav-in{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{color:var(--ink);text-decoration:none;font-size:15px;font-weight:600;letter-spacing:-.01em}
.gnav-links{display:flex;gap:clamp(18px,3vw,32px)}
.gnav-links a{color:var(--ink);text-decoration:none;font-size:12px;opacity:.8;letter-spacing:-.01em}
.gnav-links a:hover,.gnav-links a[aria-current]{opacity:1}
.menu-btn{display:none;width:44px;height:44px;margin-right:-12px;background:none;border:0;padding:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:6px;color:var(--ink)}
.menu-btn span{display:block;width:17px;height:1.5px;background:currentColor;border-radius:1px;transition:transform .25s ease}
.gnav.open .menu-btn span:first-child{transform:translateY(3.75px) rotate(45deg)}
.gnav.open .menu-btn span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.menu{position:absolute;left:0;right:0;top:100%;height:calc(100vh - var(--nav-h));height:calc(100dvh - var(--nav-h));background:var(--bg);overflow-y:auto}
.menu ul{padding-block:16px 40px}
.menu a{display:block;padding:8px 0;font-size:28px;font-weight:600;letter-spacing:-.015em;color:var(--ink);text-decoration:none}
.menu a:hover{color:var(--link)}
.menu a[aria-current]{color:var(--muted)}
@media (max-width:640px){.gnav-links{display:none}.menu-btn{display:flex}}
@media (min-width:641px){.menu{display:none!important}}

/* ---------- Local nav (a page's own bar, like "iPhone 18 Pro … Buy") ---------- */
.lnav{position:sticky;top:calc(var(--nav-h) + env(safe-area-inset-top,0px));z-index:20;background:var(--nav);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--nav-line)}
.lnav-in{min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.lnav-title{font-size:clamp(17px,2vw,21px);font-weight:600;letter-spacing:-.015em;color:var(--ink);text-decoration:none}
.lnav-links{display:flex;align-items:center;gap:clamp(16px,2.5vw,24px)}
.lnav-links a:not(.btn){font-size:12px;color:var(--ink2);text-decoration:none}
.lnav-links a:not(.btn):hover{color:var(--ink)}
@media (max-width:640px){.lnav-links a:not(.btn){display:none}}

/* ---------- Buttons and links ---------- */
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;margin-top:28px}
.center .actions,.actions.center{justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:980px;font:400 17px/1 var(--font);letter-spacing:-.022em;text-decoration:none;border:0;cursor:pointer;background:var(--blue);color:#fff;transition:background-color .2s ease}
.btn:hover{background:var(--blue-hover)}
.btn-sm{min-height:28px;padding:0 12px;font-size:12px}
.more{color:var(--link);text-decoration:none;font-size:17px;letter-spacing:-.022em}
.more::after{content:"\00a0\203A"}
.more:hover{text-decoration:underline}

/* ---------- Hero (centered, Apple product style) ---------- */
.hero{text-align:center;padding-top:clamp(56px,9vw,100px)}
.hero .eyebrow{margin-bottom:10px}
.hero .tagline{margin-top:14px}
.hero .lead{max-width:32em;margin:16px auto 0}
.hero-figure{margin:clamp(40px,6vw,64px) auto 0;width:min(100%,440px);aspect-ratio:4/5;border-radius:28px;overflow:hidden;background:var(--navy)}
.hero-figure img{display:block;width:100%;height:100%;object-fit:cover;object-position:var(--pos,50% 35%)}

/* ---------- Where I've worked ---------- */
.worked{padding-block:clamp(48px,7vw,72px)}
.worked .wrap{display:flex;flex-direction:column;align-items:center;gap:26px}
.worked p{font-size:14px;font-weight:600;color:var(--muted)}
.worked ul{display:flex;flex-wrap:wrap;justify-content:center;gap:20px clamp(20px,4vw,44px)}
.worked li{display:flex;flex-direction:column;align-items:center;gap:10px;font-size:12px;color:var(--muted)}
.worked img{display:block;width:clamp(52px,7vw,64px);height:auto;aspect-ratio:1;border-radius:22%;box-shadow:0 0 0 1px var(--line)}

/* ---------- Tiles (home "Explore the work.") ---------- */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:clamp(36px,5vw,56px)}
@media (max-width:760px){.tiles{grid-template-columns:minmax(0,1fr)}}
.tile{background:var(--tile-on-alt);border-radius:28px;padding:clamp(40px,5.5vw,56px) clamp(24px,4vw,44px);text-align:center;display:flex;flex-direction:column;align-items:center;min-width:0;overflow:hidden}
.tile .eyebrow{font-size:clamp(17px,1.8vw,19px)}
.tile h3{font-size:clamp(30px,3.8vw,40px);line-height:1.1;letter-spacing:-.005em;margin-top:4px}
.tile p.sub{font-size:clamp(17px,1.9vw,19px);color:var(--ink2);margin-top:10px;max-width:24em}
.tile .actions{justify-content:center;margin-top:22px}
.tile-feature{grid-column:1/-1;background:var(--navy);color:var(--navy-ink)}
.tile-feature .eyebrow{color:var(--navy-muted)}
.tile-feature h3{font-size:clamp(40px,6vw,64px)}
.tile-feature p.sub{color:var(--navy-muted)}
.tile-feature .more{color:var(--navy-link)}
.tile-art{margin-top:clamp(36px,5vw,56px);width:min(100%,640px)}
.tile-art img{display:block;width:100%;height:auto}

/* ---------- Band (full-width navy section, for a closing call to action) ---------- */
.band{background:var(--navy);color:var(--navy-ink)}
.band .lead{color:var(--navy-muted)}
.band .more{color:var(--navy-link)}

/* ---------- Post cards ---------- */
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:clamp(36px,5vw,56px);text-align:left}
@media (max-width:860px){.posts{grid-template-columns:minmax(0,1fr)}}
.post-card{display:flex;flex-direction:column;gap:10px;background:var(--tile);border-radius:24px;padding:28px;text-decoration:none;color:var(--ink);transition:transform .3s ease}
.sec-alt .post-card{background:var(--tile-on-alt)}
.post-card:hover{transform:scale(1.015)}
.post-card .tag{font-size:12px;font-weight:600;color:var(--muted)}
.post-card h3{font-size:21px;line-height:1.24;letter-spacing:-.015em}
.post-card p{color:var(--muted);font-size:15px}
.post-card time{margin-top:auto;padding-top:12px;font-size:12px;color:var(--muted)}

/* ---------- Devices lineup ---------- */
.lineup{margin:clamp(40px,6vw,64px) auto 0;width:min(100%,820px)}
.lineup img{display:block;width:100%;height:auto}
/* columns match the device widths in devices.svg, so each name sits under its device */
.lineup-names{display:grid;grid-template-columns:minmax(0,400fr) minmax(0,40fr) minmax(0,165fr) minmax(0,32fr) minmax(0,72fr) minmax(0,28fr) minmax(0,53fr);width:min(100%,820px);margin:24px auto 0}
.lineup-names li{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12px;color:var(--muted);white-space:nowrap;justify-self:center}
.lineup-names li:nth-child(2){grid-column:3}.lineup-names li:nth-child(3){grid-column:5}.lineup-names li:nth-child(4){grid-column:7}
@media (max-width:640px){.lineup-names{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 28px}}
.lineup-names b{font-size:17px;font-weight:600;color:var(--ink)}

/* ---------- Offer cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:clamp(36px,5vw,56px);text-align:left}
@media (max-width:860px){.cards{grid-template-columns:minmax(0,1fr)}}
.card{background:var(--tile-on-alt);border-radius:24px;padding:32px 28px;display:flex;flex-direction:column;gap:10px}
.card .tag{font-size:12px;font-weight:600;color:var(--muted)}
.card h3{font-size:24px;line-height:1.16;letter-spacing:-.015em}
.card p{color:var(--muted)}
.card .facts{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:14px;color:var(--ink2)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,48px);margin-top:clamp(36px,5vw,56px)}
@media (max-width:760px){.steps{grid-template-columns:minmax(0,1fr)}}
.steps .n{font-size:48px;font-weight:600;line-height:1;color:var(--line)}
.steps h3{font-size:24px;margin-top:12px}
.steps p{color:var(--muted);margin-top:6px}

/* ---------- Split (photo + text) ---------- */
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(28px,5vw,64px);align-items:center}
.split-photo{border-radius:28px;overflow:hidden;aspect-ratio:4/5;max-width:100%;background:var(--navy)}
.split-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 32%}
.split-text .eyebrow{margin-bottom:8px}
.split-text p:not(.eyebrow){color:var(--ink2);margin-top:16px;max-width:34em}
@media (max-width:760px){.split{grid-template-columns:minmax(0,1fr)}.split-photo{width:min(100%,360px)}}

/* ---------- Rows (principles) ---------- */
.rows{margin-top:clamp(36px,5vw,56px);border-top:1px solid var(--line);text-align:left}
.rows li{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:8px 32px;padding:28px 0;border-bottom:1px solid var(--line)}
.rows h3{font-size:clamp(21px,2.4vw,24px);letter-spacing:-.015em}
.rows p{color:var(--muted)}
@media (max-width:700px){.rows li{grid-template-columns:minmax(0,1fr)}}

/* ---------- Timeline ---------- */
.timeline{margin:clamp(36px,5vw,56px) auto 0;max-width:640px;text-align:left;position:relative}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 32px 40px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--muted)}
.timeline li.now::before{background:var(--blue);border-color:var(--blue)}
.timeline .when{font-size:12px;font-weight:600;color:var(--muted)}
.timeline h3{font-size:21px;margin-top:2px}
.timeline p{color:var(--muted);margin-top:4px}
.sec-alt .timeline li::before{background:var(--alt)}
.sec-alt .timeline li.now::before{background:var(--blue)}

/* ---------- Pillars (three short statements) ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,48px);margin-top:clamp(36px,5vw,56px);text-align:left}
@media (max-width:760px){.pillars{grid-template-columns:minmax(0,1fr)}}
.pillars h3{font-size:clamp(24px,2.8vw,28px);letter-spacing:-.015em}
.pillars p{color:var(--muted);margin-top:8px}

/* ---------- Big statement ---------- */
.statement{font-size:clamp(24px,3.2vw,32px);line-height:1.3;font-weight:600;letter-spacing:-.015em;color:var(--muted);max-width:30em;margin-inline:auto}
.statement strong{color:var(--ink);font-weight:600}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:clamp(32px,5vw,48px) auto 0;border-top:1px solid var(--line);text-align:left}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 0;font-size:clamp(19px,2.2vw,21px);font-weight:600;letter-spacing:-.015em}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:28px;font-weight:300;color:var(--muted);transition:transform .2s ease;flex:none}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list details p{color:var(--muted);padding:0 0 24px;max-width:40em}

/* ---------- Newsletter ---------- */
.sub-form{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:460px;margin:28px auto 0}
.sub-form input{flex:1 1 220px;min-height:44px;padding:0 16px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:17px}
.sub-msg{flex-basis:100%;font-size:14px;color:var(--muted)}
.note .fine{margin-top:16px}

/* ---------- Article ---------- */
.article-head{padding-top:clamp(48px,8vw,88px)}
.article-head .eyebrow{font-size:14px;margin-bottom:12px}
.article-head h1{font-size:clamp(34px,5.4vw,56px);line-height:1.08;letter-spacing:-.01em}
.article-head .dek{font-size:clamp(19px,2.2vw,24px);line-height:1.38;color:var(--muted);margin-top:16px;letter-spacing:-.015em}
.article-head .byline{margin-top:24px;font-size:14px;color:var(--muted)}
.prose{padding-block:clamp(36px,5vw,56px) clamp(56px,8vw,96px)}
.prose > * + *{margin-top:20px}
.prose p,.prose li{font-size:19px;line-height:1.58;color:var(--ink2)}
.prose h2{font-size:clamp(26px,3vw,32px);line-height:1.15;letter-spacing:-.01em;margin-top:52px;color:var(--ink)}
.prose h3{font-size:21px;margin-top:36px}
.prose ul,.prose ol{padding-left:1.3em}
.prose ul{list-style:disc}.prose ol{list-style:decimal}
.prose li + li{margin-top:10px}
.prose strong{color:var(--ink);font-weight:600}
.prose code{font:15px/1.4 ui-monospace,"SF Mono",Menlo,monospace;background:var(--tile);padding:2px 6px;border-radius:6px}
.callout{background:var(--tile);border-radius:20px;padding:24px 28px}
.callout p{font-size:17px}
.article-end{border-top:1px solid var(--line);padding-top:32px;margin-top:48px}

/* ---------- Footer ---------- */
.foot{background:var(--alt);font-size:12px;color:var(--muted);padding-block:36px 24px;letter-spacing:-.01em}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:24px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.foot h2{font-size:12px;font-weight:600;color:var(--ink);margin-bottom:10px}
.foot li + li{margin-top:8px}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--ink);text-decoration:underline}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;padding-top:18px}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .menu-btn span,.post-card,.btn,.faq-list summary::after{transition:none}
}