/* ===========================================================
   sharedhabits blog — shared styles
   Extends the design language of the landing page (Sora, green
   accent, 22px radii, soft shadows).
   =========================================================== */

:root{
  --bg:#ffffff; --ink:#0d0d0d; --muted:#8a8a8a; --line:#eee;
  --cream:#fbf7f0; --green:#16a34a; --green-bright:#22c55e; --green-soft:#eafaf0;
  --ice:#0ea5e9; --ice-soft:#e8f6ff; --ice-fill:#ddf0ff;
  --orange:#fc4c02;            /* Strava brand orange */
  --sky:#A9C6CC;               /* bruma de las portadas */
  --sea:#17709E;               /* azul profundo de las portadas: enlaces y CTA */
  --coral:#FF8A63;             /* coral de las portadas, para fondos oscuros */
  --orange-soft:#fff1ec;
  --radius:22px; --maxw:1180px; --readw:720px;
  --ease:cubic-bezier(.16,.84,.44,1);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
html{scroll-behavior:smooth}
body{font-family:'Sora',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);
  background:var(--bg);overflow-x:hidden;line-height:1.65}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.read{max-width:var(--readw);margin:0 auto;padding:0 24px}

/* ---------- nav ---------- */
#nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid transparent;transition:border-color .3s}
#nav.scrolled{border-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px;
  max-width:var(--maxw);margin:0 auto;padding:0 24px}
.logo{font-weight:700;font-size:1.45rem;letter-spacing:-.04em;color:var(--ink);text-decoration:none}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-link{font-size:.92rem;font-weight:500;color:var(--muted);text-decoration:none;transition:color .2s}
.nav-link:hover,.nav-link[aria-current="page"]{color:var(--ink)}
.nav-dl{padding:10px 18px;border-radius:12px;font-size:.9rem;background:var(--ink);color:#fff;
  font-weight:600;text-decoration:none;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.nav-dl:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.2)}
@media(max-width:560px){.nav-dl{display:none}}

/* language switcher — real links to the counterpart URL, no JS, no auto-redirect */
.lang-switch{display:flex;border:1.5px solid #e8e8e8;border-radius:11px;overflow:hidden;
  font-size:.8rem;font-weight:600}
.lang-switch a{padding:7px 11px;color:var(--muted);text-decoration:none;transition:.2s;line-height:1.2}
.lang-switch a:hover{color:var(--ink)}
.lang-switch a[aria-current="true"]{background:var(--ink);color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:1rem;
  border:none;cursor:pointer;border-radius:16px;padding:16px 26px;text-decoration:none;font-family:inherit;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s}
.btn:active{transform:scale(.96)}
.btn-dark{background:var(--ink);color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.18)}
.btn-dark:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(0,0,0,.26)}
.btn-ghost{background:transparent;border:1.5px solid #e4e4e4;color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 10px 30px rgba(252,76,2,.28)}
.btn-orange:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(252,76,2,.36)}
.btn .apple{width:20px;height:20px;fill:currentColor}
.btn small{display:block;font-size:.62rem;font-weight:400;opacity:.75;letter-spacing:.04em;line-height:1}
.btn b{font-size:1rem;font-weight:600;line-height:1.1}

/* ---------- typography ---------- */
h1,h2,h3{letter-spacing:-.03em;line-height:1.1;font-weight:600}
.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--orange)}

/* ---------- blog index hero ---------- */
.blog-hero{padding:clamp(54px,8vw,96px) 0 clamp(38px,5vw,58px);
  background:radial-gradient(120% 90% at 85% -20%,var(--orange-soft) 0%,transparent 55%),
             radial-gradient(100% 80% at 0% 0%,var(--ice-soft) 0%,transparent 50%)}
.blog-hero h1{font-size:clamp(2.15rem,6vw,4.1rem);margin:16px 0 20px;max-width:14ch}
.blog-hero p{font-size:clamp(1.02rem,2.2vw,1.28rem);color:var(--muted);font-weight:300;max-width:60ch}

/* ---------- post cards ---------- */
.posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;
  padding-bottom:clamp(60px,9vw,110px)}
.post-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;overflow:hidden;text-decoration:none;color:inherit;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.post-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(0,0,0,.09);border-color:#e2e2e2}
/* portadas: ver landing/blog/covers/STYLE.md */
.post-cover{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;background:var(--sky)}
.post-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;gap:10px}
.post-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.72rem;color:var(--muted)}
.tag{font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--orange-soft);color:var(--orange);border-radius:20px;padding:5px 11px}
.post-card h2{font-size:1.28rem;line-height:1.25}
.post-card p{font-size:.94rem;color:var(--muted);font-weight:300;flex:1}
.post-more{font-size:.88rem;font-weight:600;color:var(--sea)}

/* ---------- article ---------- */
.article-head{padding:clamp(38px,6vw,68px) 0 clamp(24px,4vw,40px);
  background:radial-gradient(110% 90% at 80% -30%,var(--orange-soft) 0%,transparent 58%)}
.article-head.orange{background:radial-gradient(110% 90% at 80% -30%,var(--orange-soft) 0%,transparent 58%)}
.crumbs{font-size:.8rem;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.article-head h1{font-size:clamp(1.95rem,4.9vw,3.15rem);margin:14px 0 18px}
.standfirst{font-size:clamp(1.02rem,2.1vw,1.2rem);color:var(--muted);font-weight:300}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;
  font-size:.82rem;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}
.byline .dot{opacity:.45}

article{padding:clamp(24px,4vw,40px) 0 clamp(60px,9vw,100px)}
article h2{font-size:clamp(1.5rem,3.4vw,2.05rem);margin:52px 0 16px;scroll-margin-top:86px}
article h3{font-size:clamp(1.15rem,2.4vw,1.35rem);margin:34px 0 12px;scroll-margin-top:86px}
article p{margin-bottom:20px;font-size:1.05rem;font-weight:300;color:#2b2b2b}
article p strong,article li strong{font-weight:600;color:var(--ink)}
article a{color:var(--sea);text-decoration:underline;text-underline-offset:3px;
  text-decoration-thickness:1.5px;text-decoration-color:rgba(23,112,158,.35);transition:text-decoration-color .2s}
article a:hover{text-decoration-color:var(--sea)}
article ul,article ol{margin:0 0 22px 1.1rem;display:flex;flex-direction:column;gap:11px}
article li{font-size:1.05rem;font-weight:300;color:#2b2b2b;padding-left:4px}
article li::marker{color:var(--orange)}
article hr{border:none;border-top:1px solid var(--line);margin:46px 0}
article figure{margin:32px 0}
article figcaption{font-size:.82rem;color:var(--muted);margin-top:10px;text-align:center}

/* table of contents */
.toc{background:var(--cream);border:1px solid #f0e8da;border-radius:18px;padding:22px 26px;margin:34px 0 42px}
.toc h2{font-size:.78rem!important;font-weight:600;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px!important}
.toc ol{margin:0 0 0 1.1rem;gap:8px}
.toc li{font-size:.95rem}
.toc a{color:var(--ink);text-decoration:none}
.toc a:hover{color:var(--sea);text-decoration:underline}

/* pull quote */
.pull{border-left:3px solid var(--orange);padding:6px 0 6px 22px;margin:34px 0;
  font-size:clamp(1.15rem,2.6vw,1.5rem);font-weight:300;line-height:1.4;letter-spacing:-.02em;color:var(--ink)}
.pull b{font-weight:600}

/* key-fact / note boxes */
.note{background:var(--ice-soft);border:1px solid #d4ecfb;border-radius:18px;padding:22px 24px;margin:32px 0}
.note.ice{background:var(--ice-soft);border-color:#d4ecfb}
.note.warn{background:#fff8e8;border-color:#f5e6c0}
.note p:last-child{margin-bottom:0}
.note .lbl{font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--sea);margin-bottom:9px;display:block}
.note.ice .lbl{color:var(--ice)}
.note.warn .lbl{color:#b7791f}

/* numbered steps */
.steps-list{counter-reset:s;list-style:none;margin-left:0!important}
.steps-list li{counter-increment:s;position:relative;padding-left:46px;min-height:32px}
.steps-list li::before{content:counter(s);position:absolute;left:0;top:1px;width:30px;height:30px;
  border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;
  font-size:.85rem;font-weight:700}

/* comparison table */
.table-scroll{overflow-x:auto;margin:30px 0;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:460px;font-size:.94rem}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);font-weight:300}
th{font-weight:600;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
tbody tr:hover{background:#fafafa}

/* ---------- promo blocks ---------- */
.promo{border-radius:var(--radius);padding:clamp(28px,4vw,40px);margin:44px 0;text-align:center}
.promo.app{background:var(--ink);color:#fff;box-shadow:0 26px 60px rgba(0,0,0,.18)}
.promo.app h3{font-size:clamp(1.3rem,3vw,1.75rem);margin-bottom:12px;color:#fff}
.promo.app p{color:rgba(255,255,255,.66);font-weight:300;max-width:46ch;margin:0 auto 22px;font-size:1rem}
.promo.app .eyebrow{color:var(--coral);margin-bottom:14px}
.promo.strava{background:var(--orange);color:#fff;box-shadow:0 26px 60px rgba(252,76,2,.26)}
.promo.strava h3{font-size:clamp(1.3rem,3vw,1.75rem);margin-bottom:12px;color:#fff}
.promo.strava p{color:rgba(255,255,255,.85);font-weight:300;max-width:48ch;margin:0 auto 22px;font-size:1rem}
.promo.strava .eyebrow{color:rgba(255,255,255,.75);margin-bottom:14px}
.promo .btn{margin-top:2px}

/* the code chip */
.code-chip{display:inline-flex;align-items:center;gap:12px;background:rgba(255,255,255,.14);
  border:1.5px dashed rgba(255,255,255,.5);border-radius:14px;padding:12px 20px;margin:0 auto 22px;
  font-size:1.45rem;font-weight:700;letter-spacing:.14em;color:#fff}
.code-chip button{background:rgba(255,255,255,.2);border:none;color:#fff;font-family:inherit;
  font-size:.68rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:7px 11px;
  border-radius:8px;cursor:pointer;transition:background .2s}
.code-chip button:hover{background:rgba(255,255,255,.34)}
.code-chip.light{background:var(--orange-soft);border-color:var(--orange);color:var(--orange)}
.code-chip.light button{background:var(--orange);color:#fff}

/* inline code token used inside body copy */
code{font-family:'SF Mono',ui-monospace,Menlo,monospace;background:#f4f4f4;border-radius:6px;
  padding:2px 7px;font-size:.9em;letter-spacing:.04em}

/* ---------- FAQ ---------- */
.faq{margin:38px 0}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:500;font-size:1.05rem;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--orange);font-size:1.5rem;font-weight:300;
  line-height:1;transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:14px 0 4px;color:var(--muted);font-size:1rem}

/* ---------- related posts ---------- */
.related{border-top:1px solid var(--line);padding-top:34px;margin-top:52px}
.related h2{font-size:1.15rem!important;margin:0 0 20px!important;letter-spacing:-.02em}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.related-card{border:1px solid var(--line);border-radius:16px;padding:20px;text-decoration:none;color:inherit;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.related-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(0,0,0,.07)}
.related-card .t{font-weight:600;font-size:1rem;line-height:1.3;margin-bottom:7px;letter-spacing:-.02em}
.related-card .d{font-size:.86rem;color:var(--muted);font-weight:300}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:46px 0;color:var(--muted);font-size:.85rem}
.foot-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;align-items:center}
.foot-logo{font-weight:700;color:var(--ink);font-size:1.2rem;letter-spacing:-.04em}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.foot-links a{color:var(--muted);font-size:.85rem;text-decoration:none}
.foot-links a:hover{color:var(--ink)}

/* ---------- affiliate / transparency disclosure ---------- */
.disclosure{font-size:.8rem;color:var(--muted);font-weight:300;background:#fafafa;
  border:1px solid var(--line);border-radius:14px;padding:15px 18px;margin:34px 0 0;line-height:1.55}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.07s}.reveal.d2{transition-delay:.14s}.reveal.d3{transition-delay:.21s}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important}
  html{scroll-behavior:auto}
}

/* ===========================================================
   Illustrations & app roundup components
   All artwork is inline SVG built in-house: no external
   requests, no third-party logos or screenshots.
   =========================================================== */

/* figure shell */
.fig{margin:38px 0}
.fig-card{border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,3.5vw,30px);
  background:#fff;overflow:hidden}
.fig-card.cream{background:var(--cream);border-color:#f0e8da}
.fig-card.greenish{background:var(--green-soft);border-color:#d6f0e0}
.fig-card svg{width:100%;height:auto;display:block}
.fig figcaption{font-size:.83rem;color:var(--muted);margin-top:12px;text-align:center;font-weight:300;
  line-height:1.5}
.fig-title{font-size:.72rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px}

/* svg text defaults so illustrations match the page type */
.fig-card text{font-family:'Sora',sans-serif}

/* ---------- app cards ---------- */
.app-grid{display:grid;gap:18px;margin:32px 0}
.app-card{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.app-card:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(0,0,0,.07)}
.app-card.ours{border-color:#cdebd9;background:linear-gradient(180deg,var(--green-soft),#fff 62%)}
.app-card.strava-card{border-color:#ffd6c4;background:linear-gradient(180deg,var(--orange-soft),#fff 62%)}
.app-head{display:flex;align-items:center;gap:14px;margin-bottom:6px;flex-wrap:wrap}
.app-mark{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;flex:none;
  background:#f4f4f4}
.app-mark svg{width:26px;height:26px;display:block}
.app-name{font-size:1.22rem;font-weight:600;letter-spacing:-.02em;line-height:1.2}
.app-for{font-size:.76rem;font-weight:600;letter-spacing:.04em;color:var(--green);
  background:var(--green-soft);border-radius:20px;padding:5px 12px;white-space:nowrap}
.app-for.o{color:var(--orange);background:var(--orange-soft)}
.app-for.n{color:var(--muted);background:#f4f4f4}
.app-card p{font-size:1rem;font-weight:300;color:#2b2b2b;margin:14px 0 0}
.app-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.app-meta span{font-size:.74rem;font-weight:400;color:#666;background:#f6f6f6;border-radius:8px;
  padding:6px 11px}
.app-verdict{margin-top:16px;padding-top:15px;border-top:1px solid var(--line);font-size:.93rem;
  font-weight:300;color:#444}
.app-verdict b{font-weight:600;color:var(--ink)}
.app-card .btn{margin-top:18px;font-size:.92rem;padding:13px 22px}

/* ---------- decision matrix ---------- */
.matrix{margin:32px 0;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.matrix-row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;
  padding:16px 20px;border-bottom:1px solid var(--line)}
.matrix-row:last-child{border-bottom:none}
.matrix-row:nth-child(odd){background:#fafafa}
.matrix-problem{font-size:.98rem;font-weight:300;color:#2b2b2b}
.matrix-arrow{color:var(--green);font-size:1.1rem;flex:none}
.matrix-pick{font-size:.98rem;font-weight:600;letter-spacing:-.01em;text-align:right}
@media(max-width:620px){
  .matrix-row{grid-template-columns:1fr;gap:6px;text-align:left}
  .matrix-arrow{display:none}
  .matrix-pick{text-align:left;color:var(--green)}
}