/* =========================================================
   FOTOGRAFIA DIGITAL COM SMARTPHONE — Curso SENAI/Firjan
   Instrutor: Tiago Tavares
   Sistema de design compartilhado
   ========================================================= */

:root{
  /* Cores */
  --bg:            #0e0f13;
  --bg-2:          #15171d;
  --surface:       #1a1d25;
  --surface-2:     #21242e;
  --line:          #2c303b;
  --line-soft:     #23262f;

  --text:          #eef0f4;
  --text-soft:     #b9bfca;
  --text-mute:     #868d9a;

  --accent:        #f4b03e;   /* âmbar — hora dourada */
  --accent-2:      #ffd17a;
  --accent-deep:   #c9871f;
  --teal:          #5ec8c0;   /* secundária fria */
  --rose:          #e8736b;

  --ok:            #58c08b;
  --warn:          #f0a23a;
  --info:          #5aa6e8;
  --tip:           #6fcf97;

  /* Tipografia */
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --maxw: 1180px;
  --readw: 760px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px -22px rgba(0,0,0,.75);
  --shadow-sm: 0 8px 24px -14px rgba(0,0,0,.7);
  --header-h: 66px;
}

/* =========================================================
   TEMA CLARO
   ========================================================= */
[data-theme="light"]{
  --bg:           #faf8f4;
  --bg-2:         #f2ede6;
  --surface:      #e8e3da;
  --surface-2:    #ddd8ce;
  --line:         #c8bfb0;
  --line-soft:    #d8d2c8;
  --text:         #1a1612;
  --text-soft:    #3d3830;
  --text-mute:    #7a7268;
  --accent:       #b07808;
  --accent-2:     #8a5c00;
  --accent-deep:  #7a4c00;
  --teal:         #1a9e96;
  --rose:         #c04040;
  --shadow:       0 18px 50px -22px rgba(0,0,0,.18);
  --shadow-sm:    0 8px 24px -14px rgba(0,0,0,.12);
}
/* Elementos que usam cores hardcoded no tema escuro */
[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4  { color: var(--text); }
[data-theme="light"] strong { color: var(--text); }
[data-theme="light"] mark { background: linear-gradient(transparent 55%, rgba(176,120,8,.22) 55%); }
[data-theme="light"] code { background: var(--surface-2); color: var(--accent-deep); }
[data-theme="light"] ::selection { background: rgba(176,120,8,.25); color: var(--text); }
/* Header */
[data-theme="light"] .site-header { background: rgba(250,248,244,.95); border-bottom-color: var(--line); }
[data-theme="light"] .site-header.scrolled { box-shadow: 0 2px 18px rgba(0,0,0,.1); }
[data-theme="light"] .brand small { color: var(--text-mute); }
[data-theme="light"] .nav-links a { color: var(--text-soft); }
[data-theme="light"] .nav-links a:hover { color: var(--text); }
[data-theme="light"] .nav-links { background: var(--bg); }
/* TOC */
[data-theme="light"] .toc { background: var(--surface); border-color: var(--line); }
[data-theme="light"] .toc a { color: var(--text-soft); }
[data-theme="light"] .toc a.active { color: var(--accent); }
/* Cards e superfícies */
[data-theme="light"] .card { background: var(--surface); border-color: var(--line); }
[data-theme="light"] .callout { background: var(--surface); }
[data-theme="light"] .diagram { background: var(--surface); }
[data-theme="light"] .table-wrap { background: transparent; }
[data-theme="light"] table thead tr { background: var(--surface-2); }
[data-theme="light"] table th { color: var(--text-soft); border-color: var(--line); }
[data-theme="light"] table td { border-color: var(--line-soft); color: var(--text); }
[data-theme="light"] table tbody tr:hover { background: var(--surface); }
/* Objective box */
[data-theme="light"] .objective { background: var(--surface); border-color: var(--line); }
/* Pills */
[data-theme="light"] .pill { background: var(--surface-2); color: var(--text-soft); }
[data-theme="light"] .pill--ghost { border-color: var(--line); color: var(--text-mute); }
/* Hero — mantém escuro */
[data-theme="light"] .mod-hero { color: #fff; }
[data-theme="light"] .mod-hero h1,
[data-theme="light"] .mod-hero p { color: #fff; }
[data-theme="light"] .mod-hero .crumb a,
[data-theme="light"] .mod-hero .crumb { color: rgba(255,255,255,.7); }
/* Part ilustrations — mantém fundo escuro como diagrama */
[data-theme="light"] .part-ilu { background: rgba(0,0,0,.06); border-color: rgba(0,0,0,.12); }
/* Video cards */
[data-theme="light"] .video-card { background: var(--surface); border-color: var(--line); }
[data-theme="light"] .thumb { background: var(--surface-2); }
/* Pager */
[data-theme="light"] .pager a { background: var(--surface); }
/* Interactive lens */
[data-theme="light"] .lentes-list,
[data-theme="light"] .lente-panel { border-color: var(--line); background: var(--surface); }
[data-theme="light"] .lente-row { border-bottom-color: var(--line-soft); }
[data-theme="light"] .lente-row:hover { background: rgba(176,120,8,.07); border-left-color: rgba(176,120,8,.4); }
[data-theme="light"] .lente-row.sel { background: rgba(176,120,8,.12); border-left-color: var(--accent); }
[data-theme="light"] .lente-row b { color: var(--text); }
[data-theme="light"] .lente-panel-cap { border-top-color: var(--line-soft); }
/* Sensor diag */
[data-theme="light"] .sensor-diag { background: var(--surface); border-color: var(--line); }
/* Shutter sim */
[data-theme="light"] .shutter-sim { background: var(--surface); border-color: var(--line); }
[data-theme="light"] .shutter-btn { background: var(--surface-2); border-color: var(--line); color: var(--text-soft); }
[data-theme="light"] .shutter-btn:hover { border-color: var(--accent); color: var(--accent); }
[data-theme="light"] .shutter-btn.sel { border-color: var(--accent); color: var(--accent); background: rgba(176,120,8,.1); }
/* Quiz */
[data-theme="light"] .quiz-cta { background: var(--surface); border-color: var(--line); }
[data-theme="light"] .quiz-cta-meta span { color: var(--text-mute); }
[data-theme="light"] .quiz-container { background: var(--bg); color: var(--text); }
[data-theme="light"] .quiz-option { background: var(--surface); border-color: var(--line); color: var(--text); }
/* Bloom map */
[data-theme="light"] .bloom-card { background: var(--surface-2); }
[data-theme="light"] .bloom-obj li { color: var(--text-soft); }
/* Glossary */
[data-theme="light"] .glossary-search { background: var(--surface); border-color: var(--line); color: var(--text); }
[data-theme="light"] .term { border-bottom-color: var(--line-soft); }
[data-theme="light"] .term dt { color: var(--text); }

/* Transição suave de tema */
body,
.site-header,
.card,
.callout,
.toc,
.objective,
.diagram,
.part-ilu,
.sensor-diag,
.shutter-btn,
.lentes-list,
.lente-panel,
.lente-row,
.bloom-card,
table th,
table td { transition: background-color .28s ease, border-color .28s ease, color .18s ease; }

/* ---------- Theme toggle button ---------- */
.theme-btn { background: none; border: 1px solid rgba(255,255,255,.18); border-radius:8px;
  padding:7px 9px; cursor:pointer; color:var(--text-soft); display:flex; align-items:center;
  transition:all .18s; flex-shrink:0; }
.theme-btn svg { width:18px; height:18px; stroke:currentColor; display:block; }
.theme-btn:hover { border-color:var(--accent); color:var(--accent); }
[data-theme="light"] .theme-btn { border-color:rgba(0,0,0,.2); }

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:90px; -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:17px; line-height:1.72;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:var(--accent-2); text-decoration:none; transition:color .15s; }
a:hover{ color:#fff; }
h1,h2,h3,h4{ font-family:var(--serif); font-weight:600; line-height:1.16; color:#fff; letter-spacing:.2px; }
h2{ font-size:clamp(1.7rem,3.4vw,2.5rem); margin:0 0 .5em; }
h3{ font-size:clamp(1.25rem,2.2vw,1.6rem); margin:2.2em 0 .5em; }
h4{ font-size:1.12rem; margin:1.6em 0 .4em; font-weight:600; }
p{ margin:0 0 1.1em; }
strong{ color:#fff; font-weight:600; }
mark{ background:linear-gradient(transparent 55%, rgba(244,176,62,.35) 55%); color:inherit; padding:0 .1em; border-radius:2px; }
ul,ol{ margin:0 0 1.2em; padding-left:1.3em; }
li{ margin:.35em 0; }
hr{ border:none; border-top:1px solid var(--line); margin:2.5em 0; }
code{ font-family:ui-monospace,"SF Mono",Menlo,monospace; background:var(--surface-2); padding:.12em .45em; border-radius:6px; font-size:.9em; color:var(--accent-2); }
::selection{ background:rgba(244,176,62,.3); color:#fff; }

/* ---------- Layout helpers ---------- */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:22px; }
.narrow{ max-width:var(--readw); }
.section{ padding:clamp(48px,7vw,92px) 0; }
.eyebrow{ font-family:var(--sans); font-weight:700; font-size:.78rem; letter-spacing:.18em; text-transform:uppercase; color:var(--accent); margin:0 0 .8em; display:inline-flex; align-items:center; gap:.6em; }
.eyebrow::before{ content:""; width:26px; height:2px; background:var(--accent); display:inline-block; }
.lead{ font-size:1.18rem; color:var(--text-soft); }
.center{ text-align:center; }
.muted{ color:var(--text-mute); }

/* ---------- Reading progress ---------- */
#progress{ position:fixed; top:0; left:0; height:3px; width:0; z-index:120;
  background:linear-gradient(90deg,var(--accent-deep),var(--accent),var(--accent-2)); transition:width .1s linear; }

/* ---------- Header ---------- */
.site-header{ position:sticky; top:0; z-index:100; height:var(--header-h);
  background:rgba(14,15,19,.72); backdrop-filter:blur(14px) saturate(1.3);
  border-bottom:1px solid var(--line-soft); }
.site-header.scrolled{ background:rgba(14,15,19,.92); }
.nav{ height:var(--header-h); display:flex; align-items:center; justify-content:space-between; gap:18px; }
.brand{ display:flex; align-items:center; gap:11px; font-family:var(--serif); font-weight:600; font-size:1.06rem; color:#fff; }
.brand:hover{ color:#fff; }
.brand .lens{ width:30px; height:30px; flex:none; }
.brand small{ display:block; font-family:var(--sans); font-weight:500; font-size:.66rem; letter-spacing:.16em; text-transform:uppercase; color:var(--accent); margin-top:1px; }
.nav-links{ display:flex; align-items:center; gap:4px; list-style:none; margin:0; padding:0; }
.nav-links a{ color:var(--text-soft); font-size:.92rem; font-weight:500; padding:8px 13px; border-radius:9px; transition:.15s; }
.nav-links a:hover{ color:#fff; background:var(--surface); }
.nav-links a.active{ color:var(--accent-2); }
.nav-cta{ background:var(--accent); color:#1a1205 !important; font-weight:700 !important; }
.nav-cta:hover{ background:var(--accent-2); }
.burger{ display:none; background:none; border:1px solid var(--line); border-radius:9px; width:42px; height:38px; cursor:pointer; padding:0; }
.burger span{ display:block; width:18px; height:2px; background:#fff; margin:3px auto; transition:.25s; }
.burger.open span:nth-child(1){ transform:translateY(5px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity:0; }
.burger.open span:nth-child(3){ transform:translateY(-5px) rotate(-45deg); }

@media(max-width:900px){
  .burger{ display:block; }
  .nav-links{ position:fixed; inset:var(--header-h) 0 auto 0; flex-direction:column; align-items:stretch; gap:2px;
    background:var(--bg-2); border-bottom:1px solid var(--line); padding:14px 16px 22px;
    transform:translateY(-130%); transition:transform .3s ease; box-shadow:var(--shadow); }
  .nav-links.open{ transform:translateY(0); }
  .nav-links a{ padding:13px 14px; font-size:1rem; border-radius:10px; }
  .nav-cta{ text-align:center; margin-top:6px; }
}

/* ---------- Buttons ---------- */
.btn{ display:inline-flex; align-items:center; gap:.55em; font-weight:600; font-size:.96rem;
  padding:13px 24px; border-radius:60px; cursor:pointer; border:1px solid transparent; transition:.18s; }
.btn--primary{ background:var(--accent); color:#1a1205; }
.btn--primary:hover{ background:var(--accent-2); color:#1a1205; transform:translateY(-2px); }
.btn--ghost{ border-color:var(--line); color:var(--text); background:transparent; }
.btn--ghost:hover{ border-color:var(--accent); color:#fff; background:var(--surface); }
.btn-row{ display:flex; flex-wrap:wrap; gap:14px; }

/* ---------- Hero (home) ---------- */
.hero{ position:relative; padding:clamp(64px,11vw,140px) 0 clamp(56px,8vw,96px); overflow:hidden; }
.hero::before{ content:""; position:absolute; inset:0; z-index:-2;
  background:radial-gradient(1100px 560px at 78% -10%, rgba(244,176,62,.18), transparent 60%),
             radial-gradient(900px 500px at 8% 110%, rgba(94,200,192,.12), transparent 60%),
             var(--bg); }
.hero::after{ content:""; position:absolute; inset:0; z-index:-1; opacity:.5;
  background-image:radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0);
  background-size:34px 34px; mask-image:linear-gradient(180deg,#000,transparent); }
.hero h1{ font-size:clamp(2.5rem,6vw,4.4rem); letter-spacing:-.5px; margin:0 0 .35em; }
.hero h1 em{ font-style:italic; color:var(--accent); }
.hero .lead{ max-width:620px; font-size:clamp(1.05rem,2vw,1.3rem); }
.hero-meta{ display:flex; flex-wrap:wrap; gap:26px; margin:34px 0 30px; }
.hero-meta .stat b{ font-family:var(--serif); font-size:1.9rem; color:#fff; display:block; line-height:1; }
.hero-meta .stat span{ font-size:.82rem; color:var(--text-mute); text-transform:uppercase; letter-spacing:.1em; }

/* ---------- Cards grid ---------- */
.grid{ display:grid; gap:22px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media(max-width:860px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:580px){ .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{ background:var(--surface); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:26px; transition:.2s; position:relative; overflow:hidden; }
.card:hover{ border-color:#3a3f4d; transform:translateY(-3px); box-shadow:var(--shadow-sm); }

/* Module card */
.mod-card{ display:flex; flex-direction:column; color:var(--text); }
.mod-card:hover{ color:var(--text); }
.mod-card .num{ font-family:var(--serif); font-size:2.6rem; color:var(--accent); line-height:1; opacity:.85; }
.mod-card .ch{ margin-left:auto; align-self:flex-start; font-size:.74rem; font-weight:700; letter-spacing:.08em;
  background:var(--surface-2); border:1px solid var(--line); color:var(--accent-2); padding:5px 11px; border-radius:30px; }
.mod-card .top{ display:flex; align-items:center; width:100%; margin-bottom:10px; }
.mod-card h3{ margin:.1em 0 .35em; font-size:1.28rem; }
.mod-card p{ color:var(--text-soft); font-size:.96rem; margin-bottom:1em; }
.mod-card .go{ margin-top:auto; font-weight:600; color:var(--accent); font-size:.92rem; display:inline-flex; gap:.4em; align-items:center; }
.mod-card:hover .go{ gap:.7em; }
.mod-card::after{ content:""; position:absolute; left:0; top:0; height:3px; width:100%;
  background:linear-gradient(90deg,var(--accent),transparent); transform:scaleX(0); transform-origin:left; transition:.3s; }
.mod-card:hover::after{ transform:scaleX(1); }

/* ---------- Callouts (informações destacadas) ---------- */
.callout{ position:relative; background:var(--surface); border:1px solid var(--line);
  border-left:4px solid var(--accent); border-radius:12px; padding:18px 22px 18px 56px; margin:1.6em 0; }
.callout .ico{ position:absolute; left:16px; top:18px; font-size:1.25rem; line-height:1; }
.callout b.title{ display:block; font-family:var(--sans); font-weight:700; font-size:.78rem; letter-spacing:.12em;
  text-transform:uppercase; margin-bottom:.3em; color:var(--accent); }
.callout p:last-child{ margin-bottom:0; }
.callout--tip{ border-left-color:var(--tip); } .callout--tip b.title{ color:var(--tip); }
.callout--info{ border-left-color:var(--info); } .callout--info b.title{ color:var(--info); }
.callout--example{ border-left-color:var(--teal); } .callout--example b.title{ color:var(--teal); }
.callout--warn{ border-left-color:var(--warn); } .callout--warn b.title{ color:var(--warn); }
.callout--key{ border-left-color:var(--rose); background:linear-gradient(100deg,rgba(232,115,107,.08),var(--surface) 40%); }
.callout--key b.title{ color:var(--rose); }

/* ---------- Figures ---------- */
figure{ margin:1.8em 0; }
figure img{ width:100%; border-radius:var(--radius-sm); border:1px solid var(--line-soft); }
figure.frame img{ box-shadow:var(--shadow-sm); }
figcaption{ font-size:.85rem; color:var(--text-mute); margin-top:.7em; line-height:1.5; }
figcaption .credit{ display:block; font-size:.76rem; opacity:.7; font-style:italic; }
.fig-2{ display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start; }
@media(max-width:600px){ .fig-2{ grid-template-columns:1fr; } }
.img-tall{ aspect-ratio:3/4; object-fit:cover; }
.img-wide{ aspect-ratio:16/9; object-fit:cover; }

/* ---------- SVG diagram block ---------- */
.diagram{ background:var(--bg-2); border:1px solid var(--line); border-radius:var(--radius); padding:26px; margin:1.8em 0; }
.diagram svg{ width:100%; height:auto; display:block; }
.diagram .cap{ font-size:.85rem; color:var(--text-mute); margin-top:14px; text-align:center; }

/* ---------- Two-column module layout w/ sticky TOC ---------- */
.doc{ display:grid; grid-template-columns:240px minmax(0,1fr); gap:48px; align-items:start; }
.toc{ position:sticky; top:90px; align-self:start; font-size:.9rem; max-height:calc(100vh - 110px); overflow:auto; }
.toc h5{ font-family:var(--sans); text-transform:uppercase; letter-spacing:.14em; font-size:.7rem; color:var(--text-mute); margin:0 0 12px; }
.toc ol{ list-style:none; margin:0; padding:0; border-left:1px solid var(--line); }
.toc li a{ display:block; padding:6px 0 6px 16px; margin-left:-1px; color:var(--text-mute); border-left:2px solid transparent; line-height:1.35; }
.toc li a:hover{ color:var(--text); }
.toc li a.active{ color:var(--accent-2); border-left-color:var(--accent); font-weight:600; }
.doc-body{ min-width:0; }
.doc-body > section{ scroll-margin-top:90px; padding-bottom:1em; }
.doc-body > section + section{ margin-top:3.2em; padding-top:.6em; }
@media(max-width:940px){
  .doc{ grid-template-columns:1fr; gap:0; }
  .toc{ position:relative; top:0; max-height:none; margin-bottom:30px; background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:16px 18px; }
  .toc ol{ border-left:none; columns:2; }
  @media(max-width:540px){ .toc ol{ columns:1; } }
  .toc li a{ border-left:none; padding-left:0; }
  .toc li a.active{ border-left:none; }
}

/* ---------- Module hero banner ---------- */
.mod-hero{ position:relative; padding:clamp(56px,8vw,104px) 0 clamp(30px,4vw,48px); overflow:hidden; border-bottom:1px solid var(--line-soft); }
.mod-hero::before{ content:""; position:absolute; inset:0; z-index:-1; opacity:.16; background-size:cover; background-position:center; }
.mod-hero::after{ content:""; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(180deg,rgba(14,15,19,.55),var(--bg) 92%); }
.mod-hero .kicker{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-bottom:14px; }
.mod-hero .pill{ font-size:.75rem; font-weight:700; letter-spacing:.08em; background:var(--accent); color:#1a1205; padding:5px 13px; border-radius:30px; }
.mod-hero .pill--ghost{ background:transparent; border:1px solid var(--line); color:var(--text-soft); }
.mod-hero h1{ font-size:clamp(2.1rem,5vw,3.5rem); margin:0 0 .25em; }
.mod-hero p{ max-width:640px; color:var(--text-soft); font-size:1.12rem; margin:0; }

/* breadcrumb */
.crumb{ font-size:.85rem; color:var(--text-mute); margin-bottom:18px; }
.crumb a{ color:var(--text-mute); } .crumb a:hover{ color:var(--accent); }

/* ---------- Video cards (YouTube) ---------- */
.videos{ display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:18px; margin:1.6em 0; }
.video-card{ display:block; background:var(--surface); border:1px solid var(--line-soft); border-radius:14px; overflow:hidden; transition:.2s; }
.video-card:hover{ transform:translateY(-3px); border-color:#3a3f4d; box-shadow:var(--shadow-sm); }
.video-card .thumb{ position:relative; aspect-ratio:16/9;
  background:linear-gradient(135deg,#2a2118,#191b22); display:flex; align-items:center; justify-content:center; }
.video-card .thumb::after{ content:""; position:absolute; inset:0; background:radial-gradient(circle at 50% 45%, rgba(244,176,62,.18), transparent 60%); }
.video-card .play{ width:54px; height:54px; border-radius:50%; background:rgba(244,176,62,.95); display:grid; place-items:center; z-index:1; transition:.2s; }
.video-card:hover .play{ transform:scale(1.08); }
.video-card .play svg{ width:22px; height:22px; margin-left:3px; fill:#1a1205; }
.video-card .vc-body{ padding:14px 16px; }
.video-card .vc-tag{ font-size:.7rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--rose); }
.video-card .vc-title{ color:#fff; font-weight:600; font-size:.98rem; margin:.2em 0 .2em; line-height:1.3; }
.video-card .vc-sub{ font-size:.83rem; color:var(--text-mute); }
.video-embed{ position:relative; aspect-ratio:16/9; border-radius:14px; overflow:hidden; border:1px solid var(--line); margin:1.6em 0; }
.video-embed iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; }

/* ---------- Master photographer cards ---------- */
.masters{ display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:22px; }
.master{ background:var(--surface); border:1px solid var(--line-soft); border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column; transition:.2s; }
.master:hover{ transform:translateY(-4px); box-shadow:var(--shadow); border-color:#3a3f4d; }
.master .ph{ aspect-ratio:1/1; background:var(--surface-2); position:relative; overflow:hidden; }
.master .ph img{ width:100%; height:100%; object-fit:cover; filter:grayscale(.15) contrast(1.02); transition:.4s; }
.master:hover .ph img{ filter:grayscale(0); transform:scale(1.04); }
.master .ph.noimg{ display:grid; place-items:center; background:linear-gradient(135deg,#23262f,#171a21); }
.master .ph.noimg span{ font-family:var(--serif); font-size:3rem; color:var(--accent); opacity:.55; }
.master .m-body{ padding:20px 22px 24px; display:flex; flex-direction:column; flex:1; }
.master .m-flag{ font-size:.74rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--accent); margin-bottom:.3em; }
.master h3{ margin:0 0 .3em; font-size:1.32rem; }
.master .m-life{ font-size:.82rem; color:var(--text-mute); margin-bottom:.7em; }
.master p{ font-size:.93rem; color:var(--text-soft); margin-bottom:1em; }
.master .m-links{ margin-top:auto; display:flex; flex-wrap:wrap; gap:8px; }
.master .m-links a{ font-size:.82rem; padding:6px 12px; border:1px solid var(--line); border-radius:30px; color:var(--text-soft); }
.master .m-links a:hover{ border-color:var(--accent); color:#fff; }

/* ---------- Tables ---------- */
.table-wrap{ overflow-x:auto; margin:1.6em 0; border:1px solid var(--line); border-radius:12px; }
table{ width:100%; border-collapse:collapse; font-size:.94rem; min-width:440px; }
th,td{ text-align:left; padding:12px 16px; border-bottom:1px solid var(--line-soft); }
thead th{ background:var(--surface-2); color:var(--accent-2); font-size:.8rem; letter-spacing:.06em; text-transform:uppercase; }
tbody tr:last-child td{ border-bottom:none; }
tbody tr:hover{ background:rgba(255,255,255,.02); }

/* ---------- Pills / chips ---------- */
.chips{ display:flex; flex-wrap:wrap; gap:8px; margin:1em 0 1.4em; }
.chip{ font-size:.82rem; padding:6px 13px; border-radius:30px; background:var(--surface-2); border:1px solid var(--line); color:var(--text-soft); }
.chip.accent{ border-color:var(--accent-deep); color:var(--accent-2); }

/* ---------- Objective box (each module top) ---------- */
.objective{ display:grid; grid-template-columns:auto 1fr; gap:20px; align-items:center;
  background:linear-gradient(100deg,rgba(244,176,62,.07),var(--surface)); border:1px solid var(--line);
  border-radius:var(--radius); padding:22px 26px; margin-bottom:2.4em; }
.objective .o-ico{ width:52px; height:52px; }
.objective h4{ margin:0 0 .25em; color:var(--accent); font-size:.82rem; letter-spacing:.12em; text-transform:uppercase; font-family:var(--sans); }
.objective p{ margin:0; color:var(--text-soft); }

/* ---------- Step list (jornada/projeto) ---------- */
.steps{ counter-reset:step; list-style:none; padding:0; margin:1.6em 0; }
.steps li{ position:relative; padding:4px 0 22px 56px; border-left:2px solid var(--line); margin-left:18px; }
.steps li:last-child{ border-left-color:transparent; }
.steps li::before{ counter-increment:step; content:counter(step); position:absolute; left:-19px; top:0;
  width:36px; height:36px; border-radius:50%; background:var(--accent); color:#1a1205; font-weight:800;
  display:grid; place-items:center; font-family:var(--serif); }
.steps li h4{ margin:.1em 0 .3em; }
.steps li p{ margin:0; color:var(--text-soft); font-size:.96rem; }

/* ---------- Checklist ---------- */
.check{ list-style:none; padding:0; margin:1.2em 0; }
.check li{ position:relative; padding-left:32px; margin:.55em 0; }
.check li::before{ content:""; position:absolute; left:0; top:3px; width:20px; height:20px; border-radius:6px;
  background:var(--surface-2); border:1px solid var(--accent-deep); }
.check li::after{ content:"✓"; position:absolute; left:4px; top:1px; color:var(--accent); font-weight:800; font-size:.85rem; }

/* ---------- Atividade prática (exercícios) ---------- */
.exercise{ position:relative; background:linear-gradient(135deg,rgba(244,176,62,.09),var(--surface) 55%);
  border:1px solid var(--accent-deep); border-radius:var(--radius); padding:24px 28px 26px; margin:2.8em 0 1em; }
.exercise .ex-tag{ display:inline-flex; align-items:center; gap:.5em; font-family:var(--sans); font-weight:800;
  font-size:.74rem; letter-spacing:.14em; text-transform:uppercase; color:var(--accent); margin-bottom:.4em; }
.exercise h3{ margin:.1em 0 .35em; font-size:1.4rem; }
.exercise > p{ color:var(--text-soft); margin-bottom:1em; }
.exercise .ex-meta{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:1.2em; }
.exercise .ex-meta span{ font-size:.78rem; background:var(--bg-2); border:1px solid var(--line); color:var(--text-soft);
  padding:5px 12px; border-radius:30px; }
.exercise .ex-meta span b{ color:var(--accent-2); font-weight:600; }
.exercise ol{ margin:0 0 1.1em; padding-left:1.3em; }
.exercise ol li{ margin:.5em 0; }
.exercise ol li::marker{ color:var(--accent); font-weight:700; }
.exercise .ex-tip{ display:flex; gap:.7em; align-items:flex-start; background:var(--bg-2); border-radius:10px;
  padding:13px 16px; font-size:.92rem; color:var(--text-soft); border-left:3px solid var(--accent); }
.exercise .ex-tip b{ color:var(--accent); }

/* ---------- Editor interativo ao vivo ---------- */
.editor{ display:grid; grid-template-columns:1.35fr 1fr; gap:24px; background:var(--bg-2); border:1px solid var(--line);
  border-radius:var(--radius); padding:22px; margin:1.8em 0; align-items:stretch; }
@media(max-width:760px){ .editor{ grid-template-columns:1fr; } }
.editor-stage{ position:relative; border-radius:12px; overflow:hidden; aspect-ratio:4/3; background:#000; }
.editor-img{ width:100%; height:100%; object-fit:cover; display:block; transition:filter .06s linear; }
.editor-temp{ position:absolute; inset:0; mix-blend-mode:soft-light; opacity:0; pointer-events:none; transition:opacity .1s, background .1s; }
.editor-badge{ position:absolute; top:10px; left:10px; font-size:.68rem; font-weight:600; letter-spacing:.04em;
  background:rgba(0,0,0,.55); color:#fff; padding:4px 11px; border-radius:30px; backdrop-filter:blur(4px); display:flex; align-items:center; gap:.4em; }
.editor-badge::before{ content:""; width:7px; height:7px; border-radius:50%; background:#e8736b; box-shadow:0 0 6px #e8736b; }
.editor-controls{ display:flex; flex-direction:column; gap:15px; justify-content:center; }
.ec-row label{ display:flex; justify-content:space-between; align-items:baseline; font-size:.9rem; color:var(--text-soft); margin-bottom:8px; font-weight:500; }
.ec-row label output{ color:var(--accent-2); font-variant-numeric:tabular-nums; font-size:.85rem; }
.ec-row input[type=range]{ width:100%; -webkit-appearance:none; appearance:none; height:6px; border-radius:5px;
  background:var(--surface-2); outline:none; cursor:pointer; }
.ec-row input[type=range]::-webkit-slider-thumb{ -webkit-appearance:none; width:20px; height:20px; border-radius:50%;
  background:var(--accent); cursor:pointer; border:3px solid var(--bg-2); box-shadow:0 0 0 1px var(--accent-deep); transition:transform .1s; }
.ec-row input[type=range]::-webkit-slider-thumb:active{ transform:scale(1.15); }
.ec-row input[type=range]::-moz-range-thumb{ width:18px; height:18px; border-radius:50%; background:var(--accent);
  border:3px solid var(--bg-2); cursor:pointer; }
.ec-actions{ display:flex; gap:10px; margin-top:6px; }
.ec-actions .btn{ padding:9px 14px; font-size:.84rem; flex:1; justify-content:center; }
#ec-bw.active{ background:var(--accent); color:#1a1205; border-color:var(--accent); }
.editor-cap{ font-size:.85rem; color:var(--text-mute); margin:.2em 0 0; }

/* ---------- Cards clicáveis com exemplo (segmentos) ---------- */
.seg-card{ cursor:pointer; display:flex; flex-direction:column; }
.seg-card p{ margin-bottom:.9em; }
.seg-card .seg-hint{ margin-top:auto; font-size:.8rem; font-weight:600; color:var(--accent);
  display:inline-flex; align-items:center; gap:.4em; opacity:.85; transition:gap .15s, opacity .15s; }
.seg-card:hover{ border-color:var(--accent-deep); }
.seg-card:hover .seg-hint{ opacity:1; gap:.65em; }
.seg-card:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

/* ---------- Cards de partes da câmera ---------- */
.part-card{ display:flex; flex-direction:column; gap:0; }
.part-ilu{ background:rgba(244,176,62,.04); border-radius:10px; overflow:hidden;
  margin-bottom:14px; border:1px solid rgba(244,176,62,.12); }
.part-ilu svg{ width:100%; height:auto; display:block; }
.part-card h4{ margin:0 0 8px; font-size:1rem; }

/* ---------- CTA band ---------- */
.cta-band{ background:linear-gradient(115deg,#1d1810,#14161d); border:1px solid var(--line); border-radius:22px;
  padding:clamp(34px,5vw,60px); text-align:center; position:relative; overflow:hidden; }
.cta-band::before{ content:""; position:absolute; inset:0; opacity:.5;
  background:radial-gradient(600px 240px at 50% -30%, rgba(244,176,62,.25), transparent 70%); }
.cta-band > *{ position:relative; }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--line); background:var(--bg-2); padding:54px 0 30px; margin-top:60px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:34px; margin-bottom:34px; }
@media(max-width:760px){ .foot-grid{ grid-template-columns:1fr; gap:26px; } }
.site-footer h5{ font-family:var(--sans); text-transform:uppercase; letter-spacing:.12em; font-size:.74rem; color:var(--text-mute); margin:0 0 14px; }
.site-footer ul{ list-style:none; padding:0; margin:0; }
.site-footer li{ margin:.4em 0; }
.site-footer a{ color:var(--text-soft); font-size:.93rem; }
.site-footer a:hover{ color:var(--accent); }
.foot-brand p{ color:var(--text-mute); font-size:.92rem; max-width:330px; }
.instructor{ display:flex; align-items:center; gap:14px; margin-top:8px; }
.instructor .av{ width:46px; height:46px; border-radius:50%; background:var(--accent); color:#1a1205;
  display:grid; place-items:center; font-family:var(--serif); font-weight:700; font-size:1.2rem; }
.instructor b{ color:#fff; display:block; } .instructor span{ font-size:.82rem; color:var(--text-mute); }
.foot-bottom{ border-top:1px solid var(--line-soft); padding-top:22px; display:flex; flex-wrap:wrap; justify-content:space-between; gap:12px; font-size:.82rem; color:var(--text-mute); }

/* ---------- Back to top ---------- */
#toTop{ position:fixed; right:22px; bottom:22px; width:46px; height:46px; border-radius:50%; z-index:90;
  background:var(--accent); color:#1a1205; border:none; cursor:pointer; display:grid; place-items:center;
  opacity:0; pointer-events:none; transform:translateY(14px); transition:.25s; box-shadow:var(--shadow-sm); }
#toTop.show{ opacity:1; pointer-events:auto; transform:none; }
#toTop:hover{ background:var(--accent-2); }

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }
@media(prefers-reduced-motion:reduce){ .reveal{ opacity:1; transform:none; } html{ scroll-behavior:auto; } }

/* ---------- Quiz CTA ---------- */
.quiz-cta{ display:flex; align-items:center; gap:22px; background:linear-gradient(120deg,#1d1810,#14161d);
  border:1px solid var(--accent-deep); border-radius:18px; padding:26px 28px; margin:2.5em 0; flex-wrap:wrap; }
.quiz-cta-icon{ font-size:2.4rem; flex-shrink:0; }
.quiz-cta-body{ flex:1; min-width:200px; }
.quiz-cta-body h3{ margin:0 0 6px; font-size:1.25rem; color:#fff; }
.quiz-cta-body p{ margin:0 0 10px; color:var(--text-soft); font-size:.95rem; }
.quiz-cta-meta{ display:flex; gap:16px; flex-wrap:wrap; }
.quiz-cta-meta span{ font-size:.82rem; color:var(--accent); font-weight:600; }
.quiz-cta-btn{ white-space:nowrap; flex-shrink:0; }
@media(max-width:600px){ .quiz-cta{ flex-direction:column; align-items:flex-start; }
  .quiz-cta-btn{ width:100%; text-align:center; justify-content:center; } }

/* ---------- Quiz Modal ---------- */
#quizModal{ position:fixed; inset:0; z-index:300; background:rgba(8,8,12,.92);
  display:flex; align-items:center; justify-content:center; padding:16px; overflow-y:auto; }
.quiz-container{ background:var(--bg-2); border:1px solid var(--line); border-radius:20px;
  width:100%; max-width:640px; max-height:90vh; overflow-y:auto; padding:32px 34px;
  position:relative; scrollbar-width:thin; }
.quiz-fechar{ position:absolute; top:16px; right:18px; background:none; border:none;
  color:var(--text-mute); font-size:1.2rem; cursor:pointer; padding:6px 10px; border-radius:8px;
  transition:.15s; line-height:1; }
.quiz-fechar:hover{ background:var(--surface); color:#fff; }
.quiz-welcome{ text-align:center; }
.quiz-welcome-icon{ font-size:3rem; margin-bottom:10px; }
.quiz-welcome h2{ margin:0 0 4px; font-size:1.6rem; color:#fff; }
.quiz-welcome > p{ margin:0 0 6px; color:var(--accent); font-size:1rem; font-weight:600; }
.quiz-welcome-sub{ color:var(--text-soft); font-size:.93rem; margin:0 0 24px; }
.quiz-nome-label{ display:block; text-align:left; font-size:.88rem; color:var(--text-soft); font-weight:600; margin-bottom:4px; }
.quiz-nome-label input{ display:block; width:100%; margin-top:7px; padding:13px 16px;
  background:var(--surface); border:1px solid var(--line); border-radius:10px;
  color:#fff; font-size:1rem; font-family:var(--sans); outline:none; box-sizing:border-box; }
.quiz-nome-label input:focus{ border-color:var(--accent); }
.quiz-progress-bar{ height:5px; background:var(--surface); border-radius:5px; margin-bottom:18px; overflow:hidden; }
.quiz-progress-bar div{ height:100%; background:var(--accent); border-radius:5px; transition:width .4s ease; }
.quiz-counter{ font-size:.8rem; color:var(--text-mute); text-transform:uppercase; letter-spacing:.1em; margin-bottom:10px; }
.quiz-badge{ display:inline-block; font-size:.74rem; font-weight:700; color:#fff;
  padding:3px 12px; border-radius:20px; letter-spacing:.06em; margin-bottom:14px; }
.quiz-enunciado{ font-size:1.05rem; color:#fff; line-height:1.55; margin:0 0 18px; font-weight:500; }
.quiz-img-single{ width:100%; border-radius:10px; margin:0 0 18px; object-fit:cover; max-height:260px; display:block; }
.quiz-img-pair{ display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:0 0 18px; }
.quiz-img-pair img{ width:100%; border-radius:8px; object-fit:cover; aspect-ratio:4/3; }
.quiz-opcoes{ display:flex; flex-direction:column; gap:9px; margin-bottom:22px; }
.quiz-option{ display:flex; align-items:flex-start; gap:12px; padding:13px 16px;
  background:var(--surface); border:1px solid var(--line); border-radius:12px; cursor:pointer; transition:.15s; }
.quiz-option:hover{ border-color:var(--accent-deep); background:rgba(244,176,62,.07); }
.quiz-option input{ margin-top:3px; accent-color:var(--accent); flex-shrink:0; }
.quiz-option span{ font-size:.95rem; color:var(--text-soft); line-height:1.45; }
.quiz-option:has(input:checked){ border-color:var(--accent); background:rgba(244,176,62,.1); }
.quiz-option:has(input:checked) span{ color:#fff; }
.quiz-btn-prox{ width:100%; text-align:center; justify-content:center; margin-top:4px; }
.quiz-resultado{ text-align:center; }
.quiz-res-emoji{ font-size:3.2rem; margin-bottom:8px; }
.quiz-res-nome{ margin:0 0 4px; font-size:1.3rem; color:#fff; }
.quiz-res-score{ font-size:3.5rem; font-family:var(--serif); color:var(--accent); line-height:1; margin:8px 0 2px; }
.quiz-res-score span{ font-size:1.8rem; color:var(--text-mute); }
.quiz-res-pct{ font-size:1rem; color:var(--text-soft); margin-bottom:10px; }
.quiz-res-msg{ color:var(--text-soft); font-size:.95rem; margin:0 0 22px; }
.quiz-detalhes{ text-align:left; display:flex; flex-direction:column; gap:10px; margin-bottom:24px; }
.quiz-det-row{ display:flex; gap:12px; padding:12px 14px; border-radius:10px; font-size:.88rem; }
.quiz-det-row.certo{ background:rgba(126,200,110,.1); border:1px solid rgba(126,200,110,.25); }
.quiz-det-row.errado{ background:rgba(240,122,122,.08); border:1px solid rgba(240,122,122,.2); }
.quiz-det-ico{ font-size:1rem; font-weight:700; flex-shrink:0; padding-top:1px; }
.quiz-det-row.certo .quiz-det-ico{ color:#7ec86e; }
.quiz-det-row.errado .quiz-det-ico{ color:#f07a7a; }
.quiz-det-row b{ color:#fff; }
.quiz-det-row small{ color:var(--text-mute); display:block; margin-top:3px; }
.quiz-acoes{ display:flex; gap:12px; flex-wrap:wrap; }
.quiz-acoes .btn{ flex:1; justify-content:center; text-align:center; }
@keyframes shake{ 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }

/* ---------- Lightbox ---------- */
#lightbox{ position:fixed; inset:0; z-index:200; background:rgba(8,8,10,.94); display:none;
  align-items:center; justify-content:center; padding:30px; cursor:zoom-out; }
#lightbox.open{ display:flex; }
#lightbox img{ max-width:94vw; max-height:88vh; border-radius:8px; box-shadow:var(--shadow); }
#lightbox .lb-cap{ position:absolute; bottom:18px; left:0; right:0; text-align:center; color:var(--text-soft); font-size:.9rem; padding:0 20px; }
.zoomable{ cursor:zoom-in; }

/* ---------- Prev/Next nav ---------- */
.pager{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:3em; }
@media(max-width:560px){ .pager{ grid-template-columns:1fr; } }
.pager a{ border:1px solid var(--line); border-radius:14px; padding:18px 22px; display:block; transition:.2s; color:var(--text); }
.pager a:hover{ border-color:var(--accent); background:var(--surface); color:#fff; }
.pager .dir{ font-size:.74rem; text-transform:uppercase; letter-spacing:.12em; color:var(--text-mute); }
.pager .ttl{ font-family:var(--serif); font-size:1.1rem; color:#fff; margin-top:3px; }
.pager .next{ text-align:right; }

/* ---------- Misc utilities ---------- */
.tag-list{ display:flex; flex-wrap:wrap; gap:7px; }
.divider-label{ display:flex; align-items:center; gap:16px; margin:2.4em 0 1.4em; color:var(--text-mute); font-size:.78rem; text-transform:uppercase; letter-spacing:.14em; }
.divider-label::before,.divider-label::after{ content:""; flex:1; height:1px; background:var(--line); }
.glossary-search{ width:100%; padding:14px 18px; background:var(--surface); border:1px solid var(--line); border-radius:12px; color:#fff; font-size:1rem; margin-bottom:24px; font-family:var(--sans); }
.glossary-search:focus{ outline:none; border-color:var(--accent); }
.term{ border-bottom:1px solid var(--line-soft); padding:18px 0; }
.term dt{ font-family:var(--serif); font-size:1.2rem; color:#fff; margin-bottom:.2em; }
.term dd{ margin:0; color:var(--text-soft); }
.term .term-mod{ font-size:.72rem; text-transform:uppercase; letter-spacing:.08em; color:var(--accent); margin-left:8px; }

/* ---------- Bloom's taxonomy map ---------- */
.bloom-map{ margin:28px 0 36px; }
.bloom-title{ font-family:var(--serif); font-size:1.05rem; margin:0 0 5px; color:#fff; }
[data-theme="light"] .bloom-title{ color:var(--text); }
.bloom-sub{ font-size:.85rem; color:var(--text-mute); margin:0 0 16px; line-height:1.5; }
.bloom-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.bloom-card{ background:var(--surface); border-radius:10px; padding:13px 14px;
  border-left:3px solid var(--bc,#f4b03e); position:relative; overflow:hidden; }
.bloom-card::before{ content:""; position:absolute; inset:0; background:var(--bc,#f4b03e);
  opacity:.06; pointer-events:none; }
.bloom-lv{ font-weight:700; font-size:.78rem; color:var(--bc,#f4b03e); margin-bottom:2px;
  text-transform:uppercase; letter-spacing:.08em; }
.bloom-verbs{ font-size:.72rem; color:var(--text-mute); margin-bottom:8px; font-style:italic; }
.bloom-obj{ margin:0; padding-left:1em; display:flex; flex-direction:column; gap:4px; }
.bloom-obj li{ font-size:.78rem; color:var(--text-soft); line-height:1.4; margin:0; }
@media(max-width:640px){ .bloom-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:400px){ .bloom-grid{ grid-template-columns:1fr; } }

/* ---------- Sensor comparison ---------- */
.sensor-diag{ display:grid; grid-template-columns:auto 1fr; gap:24px; align-items:center; margin:24px 0;
  background:rgba(255,255,255,.02); border:1px solid rgba(255,255,255,.07); border-radius:12px; padding:20px; }
.sensor-diag svg{ width:220px; height:auto; flex-shrink:0; }
.sensor-legend{ display:flex; flex-direction:column; gap:10px; }
.sensor-legend-item{ display:flex; align-items:flex-start; gap:10px; font-size:.82rem; color:#b9bfca; line-height:1.4; }
.sensor-dot{ width:10px; height:10px; border-radius:2px; flex-shrink:0; margin-top:3px; }
@media(max-width:520px){ .sensor-diag{ grid-template-columns:1fr; } .sensor-diag svg{ width:100%; max-width:240px; margin:0 auto; } }

/* ---------- Interactive lens table ---------- */
.lentes-ui{ display:grid; grid-template-columns:1fr 190px; gap:16px; margin:20px 0; }
.lentes-list{ border:1px solid rgba(255,255,255,.09); border-radius:10px; overflow:hidden; }
.lente-row{ padding:11px 16px; cursor:pointer; border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .15s; border-left:3px solid transparent; display:flex; flex-direction:column; gap:2px; }
.lente-row:last-child{ border-bottom:none; }
.lente-row:hover{ background:rgba(244,176,62,.07); border-left-color:rgba(244,176,62,.4); }
.lente-row.sel{ background:rgba(244,176,62,.1); border-left-color:#f4b03e; }
.lente-row b{ font-size:.88rem; color:#e8dcc8; }
.lente-row small{ font-size:.76rem; color:#868d9a; }
.lente-panel{ border:1px solid rgba(255,255,255,.09); border-radius:10px; overflow:hidden;
  background:rgba(255,255,255,.02); display:flex; flex-direction:column; }
.lente-panel svg{ width:100%; height:auto; display:block; }
.lente-panel-cap{ padding:8px 10px; font-size:.74rem; color:#868d9a; text-align:center;
  border-top:1px solid rgba(255,255,255,.06); line-height:1.4; }
@media(max-width:580px){ .lentes-ui{ grid-template-columns:1fr; } .lente-panel{ display:none; } .lente-panel.mobile-show{ display:flex; } }

/* ---------- Shutter simulator ---------- */
.shutter-sim{ margin:24px 0; }
.shutter-wrap{ position:relative; width:100%; max-width:520px; margin:0 auto 16px; }
#shutterCanvas{ display:block; width:100%; border-radius:10px; border:2px solid #2a2a2a; background:#0d1117; }
.shutter-flash{ position:absolute; inset:0; background:#fff; opacity:0; border-radius:10px;
  pointer-events:none; transition:opacity 60ms linear; }
.shutter-flash.on{ opacity:1; }
.shutter-btns{ display:flex; gap:8px; justify-content:center; flex-wrap:wrap; margin:0 auto; max-width:520px; }
.shutter-btn{ background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.14); color:#b9bfca;
  padding:9px 14px; border-radius:8px; cursor:pointer; font-family:inherit; font-size:.82rem;
  text-align:center; transition:all .18s; line-height:1.5; min-width:70px; }
.shutter-btn:hover{ border-color:rgba(244,176,62,.5); color:#f4b03e; }
.shutter-btn.sel{ border-color:#f4b03e; color:#f4b03e; background:rgba(244,176,62,.1); }
.shutter-result-txt{ text-align:center; font-size:.85rem; color:#868d9a; margin-top:10px; min-height:1.2em; }