/* ============================================
   Sequências IA — Styles
   DESIGN DIRECTION: Airmail Dispatch (Hard Rule #16 — new, no other tool uses it).
   Palette/type/layout: vintage postal / airmail — kraft manila paper (#efe6d3) +
     postal-navy ink (#1c2b4a) + airmail red (#c8102e) + par-avion blue (#2f5aa8);
     treated condensed grotesk UPPER/tracked display + typewriter-mono franking
     labels + humanist sans body; red-white-blue chevron border, dashed perforation,
     postmark-ring stamps, kraft grain.
   Signature: each e-mail in the sequence renders as a piece of DISPATCHED MAIL —
     an envelope card with a circular postmark stamp showing the send day
     (DIA 0 / DIA 2…) on a par-avion chevron timeline rail; postmark glyph on the gate.
   NOTE: app chrome = Airmail Dispatch; the e-mail PREVIEW artifact itself uses a
     clean realistic inbox/email-client look (system fonts) to stay accurate + export-safe.
   ============================================ */

:root {
  /* Paper surfaces */
  --paper: #efe6d3;          /* page — kraft/manila */
  --paper-2: #e7dcc4;        /* deeper kraft */
  --card: #fbf7ee;           /* envelope white / panels */
  --card-2: #f5eeddff;       /* subtle panel */
  --ink: #1c2b4a;            /* postal navy — primary text + display */
  --ink-soft: #46506a;       /* secondary text */
  --ink-dim: #6b654f;        /* muted meta on kraft — darkened for AA contrast */
  --line: #d8cbac;           /* kraft hairline */
  --line-strong: #c2b18b;    /* stronger rule */

  /* Postal accents */
  --red: #c8102e;            /* airmail red */
  --red-deep: #9e0b23;
  --blue: #2f5aa8;           /* par-avion blue */
  --blue-deep: #24467f;
  --green: #256b48;          /* stamp green / success — darkened for AA contrast */
  --gold: #a8842c;

  /* Status */
  --good: #256b48;
  --warn: #b25e00;
  --bad: #c8102e;

  /* Spacing */
  --space-xs: 4px; --space-sm: 8px; --space-md: 16px;
  --space-lg: 24px; --space-xl: 32px; --space-2xl: 48px;

  /* Radius — postal stationery is mostly square with tiny softening */
  --radius-sm: 3px; --radius-md: 5px; --radius-lg: 8px; --radius-xl: 10px;

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "Roboto Condensed", "Oswald", system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, "DejaVu Sans Mono", Consolas, monospace;

  --shadow-mail: 0 1px 0 rgba(28,43,74,.04), 0 10px 26px -14px rgba(28,43,74,.28);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* kraft paper texture + faint postal grid — replaces the old purple bg-gradient */
.bg-gradient {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(circle at 18% 12%, rgba(47,90,168,.05), transparent 40%),
    radial-gradient(circle at 85% 82%, rgba(200,16,46,.05), transparent 42%),
    repeating-linear-gradient(0deg, rgba(28,43,74,.022) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, rgba(28,43,74,.022) 0 1px, transparent 1px 26px),
    var(--paper);
}

/* Airmail red-white-blue chevron stripe (borders + accents) */
.airmail-stripe {
  height: 8px;
  background: repeating-linear-gradient( -45deg,
    var(--red) 0 12px, var(--card) 12px 24px, var(--blue) 24px 36px, var(--card) 36px 48px );
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}

/* Screens */
.screen { display: none; min-height: 100vh; }
.screen.active { display: flex; flex-direction: column; animation: fadeIn .4s ease-out; }

/* ============================================ MEMBERSHIP GATE */
#gate-screen { align-items: center; justify-content: center; padding: var(--space-lg); }
.gate-container { width: 100%; max-width: 460px; }

.gate-header { text-align: center; margin-bottom: var(--space-lg); }

/* postmark brand glyph */
.brandmark {
  width: 84px; height: 84px; margin: 0 auto var(--space-md);
  border-radius: 50%; position: relative;
  border: 2.5px solid var(--red);
  display: flex; align-items: center; justify-content: center;
  color: var(--red);
  box-shadow: 0 0 0 5px rgba(200,16,46,.08);
}
.brandmark::before {
  content: ""; position: absolute; inset: 7px; border-radius: 50%;
  border: 1.5px dashed rgba(200,16,46,.55);
}
.brandmark svg { width: 40px; height: 40px; position: relative; z-index: 1; }

/* headline — NOT a gradient (anti-slop); treated condensed ink display */
.gradient-text {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.5vw, 52px);
  font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink); line-height: .96; margin-bottom: var(--space-sm);
}
.gradient-text .amp { color: var(--red); }

.subtitle { color: var(--ink-soft); font-size: 15px; margin-bottom: var(--space-md); }

.community-badge {
  display: inline-block; background: rgba(47,90,168,.1);
  color: var(--blue-deep); padding: 6px 16px; border-radius: 100px;
  font-size: 12px; font-weight: 700; letter-spacing: .02em;
  border: 1px solid rgba(47,90,168,.28);
}

/* Gate form — styled like an envelope */
.gate-form {
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: left; margin: var(--space-lg) 0;
  box-shadow: var(--shadow-mail);
  position: relative; overflow: hidden;
}
.gate-form::before { /* envelope flap hint */
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  background: repeating-linear-gradient( -45deg,
    var(--red) 0 10px, transparent 10px 20px, var(--blue) 20px 30px, transparent 30px 40px );
  opacity: .9;
}

.form-group { margin-bottom: var(--space-lg); }
.form-group label {
  display: block; font-family: var(--font-mono); font-size: 12px;
  text-transform: uppercase; letter-spacing: .08em; font-weight: 600;
  color: var(--ink-dim); margin-bottom: var(--space-sm);
}
.form-group input, textarea, select {
  width: 100%; padding: 12px 14px;
  background: #fffdf8; border: 1px solid var(--line-strong);
  border-radius: var(--radius-md); color: var(--ink);
  font-size: 16px; font-family: inherit; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.form-group input:focus, textarea:focus, select:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,90,168,.18);
}
.form-group input::placeholder, textarea::placeholder { color: #a89f88; }

/* Buttons */
.btn-primary {
  width: 100%; padding: 14px 24px;
  background: var(--red); color: #fff; border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: .06em;
  font-size: 16px; font-weight: 700; cursor: pointer;
  transition: background .15s, transform .08s, box-shadow .15s;
  min-height: 48px; box-shadow: 0 2px 0 var(--red-deep);
}
.btn-primary:hover { background: var(--red-deep); }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 0 0 var(--red-deep); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-secondary {
  width: 100%; padding: 13px 24px; background: transparent;
  color: var(--ink); border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-md); font-size: 15px; font-weight: 600;
  font-family: inherit; cursor: pointer; transition: border-color .15s, background .15s;
  min-height: 48px;
}
.btn-secondary:hover { border-color: var(--blue); background: rgba(47,90,168,.06); }

.btn-danger {
  width: 100%; padding: 12px 24px; background: rgba(200,16,46,.08);
  color: var(--red); border: 1px solid rgba(200,16,46,.3);
  border-radius: var(--radius-md); font-size: 14px; font-weight: 600;
  font-family: inherit; cursor: pointer; min-height: 44px; transition: background .15s;
}
.btn-danger:hover { background: rgba(200,16,46,.15); }

.btn-icon {
  background: var(--card); border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); color: var(--ink-soft); padding: 8px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px; transition: border-color .15s, color .15s, background .15s;
}
.btn-icon:hover { border-color: var(--blue); color: var(--ink); }

.btn-text, .btn-loading { display: inline; }

.error-message {
  color: var(--bad); font-size: 14px; margin-top: var(--space-md);
  text-align: center; font-weight: 500;
}

.gate-footer { color: var(--ink-dim); font-size: 13px; text-align: center; }
.gate-footer a { color: var(--blue-deep); text-decoration: none; font-weight: 600; }
.gate-footer a:hover { text-decoration: underline; }

/* ============================================ API KEY SCREEN */
#key-screen { align-items: center; justify-content: center; padding: var(--space-lg); }
.key-container {
  width: 100%; max-width: 540px; background: var(--card);
  border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  padding: var(--space-xl); box-shadow: var(--shadow-mail);
}
.key-container h2 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .03em; font-size: clamp(22px, 4vw, 28px); font-weight: 800; margin-bottom: var(--space-sm); }
.key-inputs { display: flex; flex-direction: column; gap: var(--space-md); margin: var(--space-lg) 0; }
.key-input-group { background: var(--card-2); border: 1px solid var(--line); border-radius: var(--radius-md); padding: var(--space-lg); }
.key-input-group label { display: block; font-size: 14px; font-weight: 700; margin-bottom: var(--space-sm); }
.key-input-wrapper { position: relative; display: flex; gap: var(--space-sm); }
.key-input-wrapper input {
  flex: 1; padding: 12px 14px; background: #fffdf8; border: 1px solid var(--line-strong);
  border-radius: var(--radius-md); color: var(--ink); font-size: 14px; font-family: var(--font-mono);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
.key-input-wrapper input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,90,168,.18); }
.key-toggle {
  background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  color: var(--ink-soft); padding: 0 12px; cursor: pointer; font-size: 13px; min-width: 44px; font-weight: 600;
}
.key-status { font-size: 12px; margin-top: var(--space-xs); color: var(--ink-dim); font-family: var(--font-mono); }
.key-status.saved { color: var(--good); }
.key-actions { display: flex; flex-direction: column; gap: var(--space-md); }
.key-info { margin-top: var(--space-lg); color: var(--ink-soft); font-size: 14px; }
.key-info summary { cursor: pointer; color: var(--blue-deep); font-weight: 700; }
.key-info-content { margin-top: var(--space-md); padding: var(--space-lg); background: var(--card-2); border-radius: var(--radius-md); border: 1px solid var(--line); }
.key-info-content p { margin-bottom: var(--space-sm); }
.key-info-content code { background: var(--paper-2); padding: 2px 6px; border-radius: 4px; font-size: 13px; font-family: var(--font-mono); }

/* ============================================ APP SCREEN */
#app-screen { min-height: 100vh; }
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-md) var(--space-xl);
  border-bottom: 2px solid var(--ink);
  position: sticky; top: 0; z-index: 100;
  background: rgba(239,230,211,.94); backdrop-filter: blur(8px);
}
.header-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.header-mark {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  border: 2px solid var(--red); color: var(--red);
  display: flex; align-items: center; justify-content: center;
}
.header-mark svg { width: 20px; height: 20px; }
.app-title {
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: .05em;
  font-size: 20px; font-weight: 800; color: var(--ink); white-space: nowrap;
}
.app-title .amp { color: var(--red); }
.header-right { display: flex; gap: var(--space-sm); }

.app-main { flex: 1; width: 100%; max-width: 1240px; margin: 0 auto; padding: var(--space-lg) var(--space-xl); }

.app-footer { text-align: center; padding: var(--space-xl); color: var(--ink-dim); font-size: 13px; border-top: 1px solid var(--line); }
.footer-links { margin-top: 8px; }
.footer-links a { color: var(--ink-dim); text-decoration: none; font-size: 12px; }
.footer-links a:hover { color: var(--blue-deep); text-decoration: underline; }
.footer-sep { margin: 0 8px; color: var(--ink-dim); opacity: .5; }

/* ============================================ STUDIO (tool) */
.studio { display: grid; grid-template-columns: 380px 1fr; gap: var(--space-lg); align-items: start; }
.studio > * { min-width: 0; } /* COR-026 — let the 1fr stage shrink; inner scrollers scroll */

/* Compositor (left) */
.compositor {
  background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-mail); overflow: hidden; position: sticky; top: 86px;
}
.compositor-head {
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 8px; background: var(--card-2);
}
.compositor-head .frank {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--red); border: 1.5px solid var(--red); padding: 2px 6px; border-radius: 2px; transform: rotate(-3deg);
}
.compositor-head h2 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .04em; font-size: 18px; font-weight: 800; }
.compositor-body { padding: 18px; display: flex; flex-direction: column; gap: 16px; }

.field label { display: block; font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-dim); margin-bottom: 6px; font-weight: 600; }
.field textarea { min-height: 76px; resize: vertical; line-height: 1.5; font-size: 15px; }
.field .hint { font-size: 12px; color: var(--ink-dim); margin-top: 4px; line-height: 1.45; }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 13px; padding: 7px 12px; border-radius: 100px; cursor: pointer;
  background: #fffdf8; border: 1.5px solid var(--line-strong); color: var(--ink-soft);
  font-family: inherit; transition: all .12s; min-height: 34px; font-weight: 500;
}
.chip:hover { border-color: var(--blue); }
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); font-weight: 600; }
.chip.active.red { background: var(--red); border-color: var(--red); }

.field select { cursor: pointer; }

.compositor-foot { padding: 4px 18px 18px; }
#generate-btn { width: 100%; }

/* Stage (right) */
.stage { background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); box-shadow: var(--shadow-mail); overflow: hidden; }
.stage-tabs { display: flex; gap: 0; border-bottom: 2px solid var(--ink); background: var(--card-2); }
.tab {
  flex: 1; padding: 13px 10px; background: none; border: none; cursor: pointer;
  font-family: var(--font-display); text-transform: uppercase; letter-spacing: .05em;
  font-size: 13px; font-weight: 700; color: var(--ink-dim);
  border-bottom: 3px solid transparent; margin-bottom: -2px; transition: color .12s, border-color .12s; min-height: 46px;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--red); border-bottom-color: var(--red); }
.tab-panel { display: none; padding: var(--space-lg); }
.tab-panel.active { display: block; animation: fadeIn .25s ease-out; }

/* empty + loading states */
.empty-state { text-align: center; padding: 48px 20px; color: var(--ink-dim); }
.empty-state .env-glyph { width: 72px; height: 72px; margin: 0 auto 16px; color: var(--line-strong); }
.empty-state h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .04em; font-size: 20px; color: var(--ink-soft); margin-bottom: 8px; }
.empty-state p { font-size: 14px; max-width: 340px; margin: 0 auto; }

.loading-state { text-align: center; padding: 52px 20px; }
.postmark-spin {
  width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%;
  border: 3px solid rgba(200,16,46,.2); border-top-color: var(--red);
  animation: spin 1s linear infinite;
}
.loading-state h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .04em; font-size: 18px; color: var(--ink); }
.loading-state p { color: var(--ink-dim); font-size: 13px; margin-top: 6px; }

/* ---- PREVIEW tab: sequence rail + inbox preview ---- */
.seq-summary {
  font-size: 14px; color: var(--ink-soft); background: var(--card-2);
  border: 1px solid var(--line); border-left: 3px solid var(--blue);
  border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 18px;
}
.seq-summary strong { color: var(--ink); }

.preview-grid { display: grid; grid-template-columns: 260px 1fr; gap: 18px; align-items: start; }
.preview-grid > * { min-width: 0; }

/* the timeline rail of dispatched mail */
.rail { position: relative; padding-left: 6px; }
.rail::before { content: ""; position: absolute; left: 25px; top: 12px; bottom: 12px; width: 2px;
  background: repeating-linear-gradient(0deg, var(--blue) 0 6px, transparent 6px 12px); }
.mail-item {
  position: relative; display: flex; gap: 12px; align-items: flex-start;
  padding: 10px 12px 10px 0; cursor: pointer; border-radius: var(--radius-sm); width: 100%; text-align: left;
  background: none; border: none; font-family: inherit; margin-bottom: 4px;
}
.mail-item:hover .mail-mini { border-color: var(--blue); }
/* postmark stamp on the rail */
.postmark {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: 50%; z-index: 1;
  border: 2px solid var(--red); color: var(--red); background: var(--paper);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--font-mono); line-height: 1; transform: rotate(-6deg); transition: transform .12s;
}
.mail-item.active .postmark { transform: rotate(0); background: var(--red); color: #fff; }
.postmark .pm-dia { font-size: 8px; letter-spacing: .06em; }
.postmark .pm-n { font-size: 15px; font-weight: 700; }
.mail-mini { flex: 1; min-width: 0; background: var(--card-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 10px; transition: border-color .12s; }
.mail-item.active .mail-mini { border-color: var(--red); background: #fff; box-shadow: 0 4px 14px -8px rgba(28,43,74,.4); }
.mail-mini .mm-when { display: block; font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); }
.mail-mini .mm-obj { display: block; font-size: 13px; font-weight: 700; color: var(--ink); margin: 3px 0 3px; }
.mail-mini .mm-subj { display: block; font-size: 12px; color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* the realistic inbox/email preview — clean, accurate, system-font (export-safe) */
.subj-toggle { display: flex; gap: 6px; align-items: center; margin-bottom: 10px; }
.subj-toggle .lbl { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); }
.ab-btn { font-family: var(--font-mono); font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 100px; border: 1.5px solid var(--line-strong); background: #fffdf8; color: var(--ink-soft); cursor: pointer; min-height: 30px; }
.ab-btn.active { background: var(--blue); color: #fff; border-color: var(--blue); }

.email-preview {
  background: #fff; border: 1px solid #e3e4e8; border-radius: 8px; overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a1a1a; box-shadow: 0 8px 26px -16px rgba(0,0,0,.4);
}
.ep-head { padding: 14px 16px; border-bottom: 1px solid #edeef1; }
.ep-subject { font-size: 16px; font-weight: 700; color: #111; line-height: 1.3; }
.ep-preview-text { font-size: 13px; color: #8a8f98; margin-top: 3px; }
.ep-from { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.ep-avatar { width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0; background: linear-gradient(135deg, var(--red), var(--blue)); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; }
.ep-from-meta { min-width: 0; line-height: 1.3; }
.ep-from-name { font-size: 13px; font-weight: 600; color: #1a1a1a; }
.ep-from-sub { font-size: 12px; color: #8a8f98; }
.ep-body { padding: 18px 16px; font-size: 14.5px; line-height: 1.62; color: #2a2a2a; }
.ep-body p { margin: 0 0 12px; white-space: pre-wrap; word-break: break-word; }
.ep-body p:last-child { margin-bottom: 0; }
.ep-cta { display: inline-block; margin-top: 6px; background: var(--red); color: #fff; font-weight: 700; font-size: 14px; padding: 11px 22px; border-radius: 6px; text-decoration: none; }
.ep-foot { padding: 12px 16px; border-top: 1px solid #edeef1; font-size: 11px; color: #a0a4ab; }

/* ---- COPY tab ---- */
.copy-toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.copy-email {
  border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  margin-bottom: 16px; overflow: hidden; background: var(--card);
}
.ce-head { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--card-2); border-bottom: 1px solid var(--line); }
.ce-badge {
  font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .06em;
  color: var(--red); border: 1.5px solid var(--red); border-radius: 2px; padding: 2px 6px; flex-shrink: 0;
}
.ce-obj { font-weight: 700; font-size: 14px; color: var(--ink); flex: 1; min-width: 0; }
.ce-when { font-family: var(--font-mono); font-size: 10px; color: var(--ink-dim); text-transform: uppercase; letter-spacing: .06em; }
.ce-body { padding: 14px; }
.copy-block { margin-bottom: 12px; }
.copy-block:last-child { margin-bottom: 0; }
.cb-label { display: flex; align-items: center; gap: 8px; margin-bottom: 5px; }
.cb-label .lbl { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); font-weight: 600; }
.cb-count { font-family: var(--font-mono); font-size: 10px; color: var(--good); margin-left: auto; }
.cb-count.over { color: var(--bad); font-weight: 700; }
.cb-item { display: flex; align-items: flex-start; gap: 8px; background: var(--card-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 10px; }
.cb-item .txt { flex: 1; min-width: 0; font-size: 14px; color: var(--ink); line-height: 1.5; word-break: break-word; }
.cb-item.subj .txt { font-weight: 600; }
.mini-count { font-family: var(--font-mono); font-size: 10px; color: var(--good); flex-shrink: 0; padding-top: 2px; }
.mini-count.over { color: var(--bad); font-weight: 700; }
.copy-btn {
  flex-shrink: 0; background: var(--card); border: 1px solid var(--line-strong); color: var(--ink-soft);
  border-radius: var(--radius-sm); width: 30px; height: 30px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .12s;
}
.copy-btn:hover { border-color: var(--blue); color: var(--blue); }
.copy-btn.done { border-color: var(--good); color: var(--good); font-weight: 700; }
.regen-email-btn {
  margin-top: 6px; background: transparent; border: 1.5px dashed var(--line-strong); color: var(--ink-soft);
  border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12px; font-weight: 600; cursor: pointer; font-family: inherit; min-height: 38px; transition: all .12s;
}
.regen-email-btn:hover { border-color: var(--blue); color: var(--blue); }
.regen-email-btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---- EXPORT tab ---- */
.export-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.export-card {
  border: 1px solid var(--line-strong); border-radius: var(--radius-md); padding: 16px;
  background: var(--card-2); text-align: left; cursor: pointer; font-family: inherit; transition: border-color .12s, transform .08s;
  display: flex; gap: 12px; align-items: flex-start; min-height: 84px;
}
.export-card:hover { border-color: var(--blue); }
.export-card:active { transform: translateY(1px); }
.export-card .ec-ic { width: 34px; height: 34px; flex-shrink: 0; border-radius: 6px; background: var(--card); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; color: var(--red); }
.export-card .ec-t { font-weight: 700; font-size: 14px; color: var(--ink); }
.export-card .ec-d { font-size: 12px; color: var(--ink-dim); margin-top: 2px; }
.export-note { margin-top: 16px; font-size: 12px; color: var(--ink-dim); text-align: center; }

/* small utility */
.btn-tiny {
  background: var(--card); border: 1.5px solid var(--line-strong); color: var(--ink);
  border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12px; font-weight: 600;
  cursor: pointer; font-family: inherit; min-height: 36px; display: inline-flex; align-items: center; gap: 6px; transition: all .12s;
}
.btn-tiny:hover { border-color: var(--blue); color: var(--blue); }
.btn-tiny.solid { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-tiny.solid:hover { background: var(--red); border-color: var(--red); color: #fff; }

/* ============================================ MODAL */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; }
.modal-overlay { position: absolute; inset: 0; background: rgba(28,43,74,.5); backdrop-filter: blur(3px); }
.modal-content {
  position: relative; background: var(--card); border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg); padding: var(--space-xl); width: 90%; max-width: 480px;
  max-height: 84vh; overflow-y: auto; box-shadow: var(--shadow-mail);
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-lg); }
.modal-header h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: .03em; font-size: 18px; font-weight: 800; }
.modal-actions { display: flex; flex-direction: column; gap: var(--space-md); margin-top: var(--space-lg); }
.model-picker-wrap { margin-top: 10px; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 600; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
  z-index: 12000; box-shadow: 0 8px 24px -8px rgba(0,0,0,.5); max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--red-deep); }

/* ============================================ RESPONSIVE */
@media (max-width: 960px) {
  .studio { grid-template-columns: 1fr; }
  .compositor { position: static; }
}
@media (max-width: 640px) {
  .preview-grid { grid-template-columns: 1fr; }
  .rail::before { left: 25px; }
  .export-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .app-main { padding: var(--space-md); }
  .app-header { padding: var(--space-md); }
}
@media (max-width: 480px) {
  .gate-form, .key-container { padding: var(--space-lg); }
  .modal-content { padding: var(--space-lg); }
  .gradient-text { letter-spacing: .02em; }
}
@media (max-width: 375px) {
  .app-header { padding: 10px 12px; }
  .app-title { font-size: 17px; }
  .tab { font-size: 11px; padding: 12px 4px; }
  .tab-panel { padding: var(--space-md); }
  .compositor-body { padding: 14px; }
}

/* ============================================ ANIMATIONS */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================ PRINT */
@media print {
  .bg-gradient, .app-header, .app-footer, .btn-icon, .compositor, .stage-tabs, .copy-toolbar { display: none; }
  body { background: #fff; color: #000; }
}

/* focus-visible accessibility floor (every direction) */
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }