/* English Coffee Break. One layout system, two themes:
   body.t-lessons = warm, bookish (Georgia, cream, navy, gold)
   body.t-tool    = cool, software (Space Grotesk, graphite, mint)        */

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
img{display:block;max-width:100%}
a{text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0;font-weight:700;color:inherit}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- themes ---------- */
body.t-lessons{
  --bg:#FFFDF5; --band:#F6F0DA; --card:#FFFFFF; --ink:#1B2A47; --muted:#5E6577; --line:#E7DFC2;
  --accent:#2B5EA6; --accent-d:#1F4A85; --on-accent:#fff; --hl:#FFD966;
  --dark:#1F3864; --on-dark:#fff; --dark-muted:#C9D3EA;
  --hf:Georgia,"Times New Roman",serif; --bf:Inter,-apple-system,"Helvetica Neue",Arial,sans-serif; --mf:var(--bf);
  --nav-bg:rgba(255,253,245,.85); --r:6px; --track:-.02em; --h-weight:700;
}
body.t-tool{
  --bg:#0A0F1E; --band:#0F1630; --card:#141C38; --ink:#EEF2FF; --muted:#8F9BC0; --line:#222C52;
  --accent:#3DE0A5; --accent-d:#2cc48d; --on-accent:#04140E; --hl:#8B7CFF;
  --dark:#0F1630; --on-dark:#EEF2FF; --dark-muted:#8F9BC0;
  --hf:"Space Grotesk",Inter,-apple-system,sans-serif; --bf:Inter,-apple-system,"Helvetica Neue",Arial,sans-serif; --mf:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --nav-bg:rgba(10,15,30,.8); --r:16px; --track:-.035em; --h-weight:700;
}

body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.5 var(--bf);letter-spacing:-.011em;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
h1,h2,h3{font-family:var(--hf);letter-spacing:var(--track)}

/* ---------- nav + switcher ---------- */
.nav{position:sticky;top:0;z-index:20;background:var(--nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.nav .in{max-width:1040px;margin:0 auto;padding:0 22px;height:52px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font-family:Georgia,"Times New Roman",serif;font-weight:700;font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink)}
.brand:hover{text-decoration:none}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:26px;align-items:center}
.nav li a{font-size:13px;color:var(--ink);opacity:.8}
.nav li a:hover{opacity:1;text-decoration:none}
.nav .pill{background:var(--accent);color:var(--on-accent);opacity:1;padding:6px 14px;border-radius:999px;font-weight:600}
@media (max-width:640px){.nav li.opt{display:none}.brand{letter-spacing:.12em;font-size:12px}}

.switch-wrap{display:flex;justify-content:center;padding:34px 22px 0}
.switch{display:inline-flex;background:var(--band);border:1px solid var(--line);border-radius:999px;padding:4px;gap:2px}
.switch a{font:600 15px/1 var(--bf);padding:12px 22px;border-radius:999px;color:var(--muted);letter-spacing:-.01em;white-space:nowrap}
.switch a:hover{text-decoration:none;color:var(--ink)}
.switch a[aria-current="page"]{background:var(--accent);color:var(--on-accent)}

/* ---------- layout ---------- */
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
.center{text-align:center}
section{padding:92px 0}
@media (max-width:700px){section{padding:60px 0}}
.band{background:var(--band)}
.dark{background:var(--dark);color:var(--on-dark)}
.dark .eyebrow{color:var(--dark-muted)}
.dark .sub{color:var(--dark-muted)}

.eyebrow{font:600 15px/1.3 var(--mf);color:var(--muted);margin-bottom:12px;letter-spacing:0}
.t-tool .eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--accent)}
.t-lessons .eyebrow{font-family:var(--hf);font-style:italic;font-weight:400;font-size:19px;color:var(--accent)}
.h-hero{font-size:clamp(40px,7vw,78px);line-height:1.04}
.h-sec{font-size:clamp(30px,4.6vw,52px);line-height:1.08}
.sub{font-size:clamp(18px,2.2vw,23px);line-height:1.35;font-weight:400;color:var(--muted);margin:20px auto 0;max-width:32em;letter-spacing:-.012em}
.t-lessons .h-hero em,.t-lessons .h-sec em{font-style:italic;background:linear-gradient(transparent 62%,var(--hl) 62%,var(--hl) 92%,transparent 92%);padding:0 .05em}
.t-tool .h-hero span{color:var(--accent)}

.row{display:flex;gap:22px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-block;background:var(--accent);color:var(--on-accent);padding:13px 26px;border-radius:999px;font:600 16px/1.3 var(--bf);letter-spacing:-.01em}
.btn:hover{background:var(--accent-d);text-decoration:none}
.t-lessons .btn{border-radius:4px}
.btn.light{background:#fff;color:#1F3864}
.btn.light:hover{background:#eef2fa}
.more{font-size:18px;font-weight:600}
.more::after{content:" ›"}

/* ---------- lessons: hero stage ---------- */
.hero{padding:56px 0 0;text-align:center;overflow:hidden}
.stage{display:flex;align-items:flex-end;justify-content:center;gap:clamp(12px,2vw,24px);margin:60px auto 0;padding:0 22px 84px;max-width:1040px}
.stage img{width:31%;aspect-ratio:1;border-radius:8px;box-shadow:rgba(31,56,100,.28) 4px 8px 30px;background:#fff;height:auto}
.stage img.mid{width:34%;margin-bottom:44px}

/* ---------- facts ---------- */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fact{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:38px 24px;text-align:center}
.fact b{display:block;font:700 clamp(30px,3.6vw,46px)/1 var(--hf);letter-spacing:var(--track);white-space:nowrap}
.fact span{display:block;margin-top:12px;color:var(--muted);font-size:17px}
@media (max-width:800px){.facts{grid-template-columns:1fr}}

/* ---------- free ---------- */
.free{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:52px;text-align:left}
.freecard{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r);padding:34px;display:flex;flex-direction:column;gap:12px}
.freecard h3{font-size:30px;line-height:1.1}
.freecard p{color:var(--dark-muted)}
.freecard .lv{font:700 12px/1 var(--bf);letter-spacing:.1em;text-transform:uppercase;color:#FFD966}
.freecard .btn{align-self:flex-start;margin-top:8px;background:#FFD966;color:#1F3864}
@media (max-width:760px){.free{grid-template-columns:1fr}}

/* ---------- catalog ---------- */
.seg{display:inline-flex;background:var(--band);border:1px solid var(--line);border-radius:999px;padding:3px;margin-top:30px}
.seg button{font:600 14px/1 var(--bf);border:0;background:transparent;color:var(--muted);padding:9px 18px;border-radius:999px;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.15)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px;margin-top:46px;text-align:left}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;color:inherit}
.card:hover{text-decoration:none;border-color:var(--accent)}
.card .im{aspect-ratio:1;background:var(--band)}
.card .im img{width:100%;height:100%;object-fit:cover}
.card .b{padding:16px 18px 20px;display:flex;flex-direction:column;gap:4px;flex:1}
.card .m{font:700 11px/1.3 var(--bf);letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.card h3{font-size:19px;line-height:1.2}
.card p{color:var(--muted);font-size:15px;line-height:1.4;margin-top:2px}
.card .go{margin-top:auto;padding-top:12px;font-weight:600;color:var(--accent)}
.card .go::after{content:" ›"}

/* ---------- tool: mock ---------- */
.mock{display:grid;grid-template-columns:1.25fr .12fr 1fr;gap:0;align-items:center;margin:64px auto 0;max-width:1000px;text-align:left}
.doc,.mail{background:#fff;color:#1d2433;border-radius:14px;box-shadow:0 30px 80px rgba(0,0,0,.45);overflow:hidden}
.bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid #e6e9f2;font:600 13px var(--bf);color:#4a5370;background:#f6f7fb}
.dot{width:10px;height:10px;border-radius:50%;background:#d6dae8;display:inline-block}
.doc table{width:100%;border-collapse:collapse;font-size:14px}
.doc th{font:600 11px var(--mf);text-transform:uppercase;letter-spacing:.08em;color:#6b7390;text-align:left;padding:10px 16px;border-bottom:1px solid #e6e9f2;width:28%}
.doc td{padding:10px 16px;border-bottom:1px solid #eef0f6;vertical-align:top}
.chip{display:inline-block;background:#e6fbf3;color:#0b7a55;border:1px solid #9fe7cc;border-radius:999px;font:600 12px var(--bf);padding:3px 10px}
.arrow{text-align:center;color:var(--accent);font:700 28px var(--hf)}
.mail .hdr{padding:14px 18px;border-bottom:1px solid #e6e9f2;font-size:13px;color:#4a5370;line-height:1.7}
.mail .hdr b{color:#1d2433}
.mail .msg{padding:18px;font-size:15px;line-height:1.55}
.mail .msg p{margin:0 0 10px}
.cap{margin-top:20px;font:500 13px var(--mf);color:var(--muted);text-align:center}
@media (max-width:860px){.mock{grid-template-columns:1fr;gap:14px}.arrow{transform:rotate(90deg);font-size:24px}}

/* ---------- tool: steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:52px;text-align:left}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px}
.step i{font:700 13px var(--mf);font-style:normal;color:var(--hl);letter-spacing:.1em;display:block}
.step b{display:block;margin-top:18px;font:700 21px/1.2 var(--hf);letter-spacing:var(--track)}
.step span{display:block;margin-top:8px;color:var(--muted);font-size:15px}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* ---------- footer ---------- */
footer{background:var(--band);color:var(--muted);font-size:12px;line-height:1.5;padding:28px 0 40px;border-top:1px solid var(--line)}
footer .in{max-width:1040px;margin:0 auto;padding:0 22px;display:flex;justify-content:space-between;gap:12px 28px;flex-wrap:wrap}
footer a{color:var(--muted);text-decoration:underline}

/* ---------- small additions ---------- */
section[id]{scroll-margin-top:64px}
.legal{margin-top:36px}
.legal h2{font-size:22px;margin:34px 0 8px}
.legal p,.legal li{color:var(--muted);margin-bottom:12px}
.legal ul{padding-left:1.2em;margin:0}
.legal b{color:var(--ink)}
.t-lessons .dark .eyebrow{color:#FFD966}

/* Google sign-in button, per Google's branding guidelines (light theme). */
.gbtn{display:inline-flex;align-items:center;height:44px;padding:0 14px 0 12px;background:#fff;color:#1F1F1F;border:1px solid #747775;border-radius:999px;font:500 15px/20px "Google Sans",Roboto,Arial,sans-serif;letter-spacing:.01em;white-space:nowrap}
.gbtn:hover{text-decoration:none;background:#f6f8fb;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.gbtn .g{margin-right:10px;flex:none}
.gbtn[hidden],.btn[hidden],.fine[hidden],.sub[hidden]{display:none}
.nav .pill{white-space:nowrap}
.fine{margin-top:14px;font-size:14px;color:var(--muted)}
.steps.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:760px){.steps.three{grid-template-columns:1fr}}