:root {
  --ink: #10151a;
  --ink-soft: #4a545e;
  --ink-faint: #8993a0;
  --paper: #ffffff;
  --panel: #f4f6f8;
  --line: #dde2e7;
  --line-strong: #c3cad2;
  --accent: #0f6e56;
  --accent-ink: #04342c;
  --accent-soft: #e1f5ee;
  --danger: #a32d2d;
  --danger-soft: #fcebeb;
  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #eef1f4;
    --ink-soft: #b7c0c9;
    --ink-faint: #7c8792;
    --paper: #12161a;
    --panel: #191f24;
    --line: #2a3238;
    --line-strong: #3a444c;
    --accent: #3fcaa3;
    --accent-ink: #d6f5ea;
    --accent-soft: #163a30;
    --danger: #e88c8c;
    --danger-soft: #3a1f1f;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--paper); color: var(--ink); font-family: var(--font-sans); }
body { min-height: 100%; }

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .mark {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--accent-ink); background: var(--accent-soft);
  padding: 3px 8px; border-radius: 4px;
}
h1 { font-size: 18px; font-weight: 600; margin: 0; letter-spacing: -0.01em; }

.view { min-height: 100%; }

/* ---------- LOGIN ---------- */
#view-login {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px;
  border: 1px solid var(--line); border-radius: 12px;
  padding: 28px clamp(20px, 5vw, 32px);
  background: var(--panel);
}
.login-card .brand { margin-bottom: 10px; }
.lead { font-size: 13.5px; color: var(--ink-faint); margin: 0 0 22px; line-height: 1.5; }
.login-legal { margin: 18px 0 0; font-size: 12.5px; text-align: center; }
.login-legal a { color: var(--ink-faint); }

.btn-google {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: 8px;
  padding: 11px; font-family: var(--font-sans); font-size: 14px; font-weight: 500;
  color: var(--ink); cursor: pointer;
}
.btn-google:hover { border-color: var(--ink-faint); }

.divider { display: flex; align-items: center; gap: 10px; margin: 18px 0; color: var(--ink-faint); font-size: 12px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.auth-form { display: flex; flex-direction: column; gap: 4px; }
.field-label { font-size: 12px; font-family: var(--font-mono); color: var(--ink-soft); margin: 10px 0 5px; display: block; }
.auth-form input, textarea, input[type="text"] {
  width: 100%; border: 1px solid var(--line); border-radius: 7px;
  padding: 10px 12px; font-family: var(--font-sans); font-size: 14px;
  background: var(--paper); color: var(--ink); outline: none;
}
.auth-form input:focus, textarea:focus, input[type="text"]:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.auth-msg { font-size: 12.5px; min-height: 0; margin-top: 8px; display: none; padding: 8px 10px; border-radius: 7px; }
.auth-msg.on { display: block; }
.auth-msg.error { background: var(--danger-soft); color: var(--danger); }
.auth-msg.ok { background: var(--accent-soft); color: var(--accent-ink); }

.auth-actions { display: flex; gap: 8px; margin-top: 16px; }
.btn-primary {
  flex: 1; font-family: var(--font-sans); font-weight: 600; font-size: 14px;
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 11px; cursor: pointer;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:disabled { opacity: 0.55; cursor: default; }
.btn-secondary {
  flex: 1; font-family: var(--font-sans); font-weight: 500; font-size: 14px;
  background: transparent; color: var(--ink); border: 1px solid var(--line-strong);
  border-radius: 8px; padding: 11px; cursor: pointer;
}
.btn-secondary:hover { border-color: var(--ink-faint); }
.btn-secondary:disabled { opacity: 0.55; cursor: default; }

/* ---------- APP SHELL ---------- */
.app-header {
  padding: 16px clamp(16px, 4vw, 40px);
  padding-top: calc(16px + env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.user-box { display: flex; align-items: center; gap: 12px; }
.user-email { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-faint); }
.btn-ghost {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  background: transparent; color: var(--ink-soft); border: 1px solid var(--line);
  border-radius: 7px; padding: 7px 12px; cursor: pointer;
}
.btn-ghost:hover { border-color: var(--line-strong); color: var(--ink); }

/* ---------- GALLERY ---------- */
.gallery-wrap { padding: 24px clamp(16px, 4vw, 40px) 48px; }
.section-lead { font-size: 14px; color: var(--ink-faint); margin: 0 0 20px; }
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px;
}
.template-card {
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; cursor: pointer;
  background: var(--panel); text-align: left; padding: 0; font-family: inherit;
}
.template-card:hover { border-color: var(--accent); }
.swatch { height: 96px; display: flex; }
.swatch span { flex: 1; }
.template-card .info { padding: 12px 14px; }
.template-card .info .name { font-size: 14px; font-weight: 600; margin: 0 0 3px; }
.template-card .info .desc { font-size: 12px; color: var(--ink-faint); margin: 0; line-height: 1.4; }

/* ---------- EDITOR ---------- */
.editor-wrap { padding: 12px clamp(16px, 4vw, 40px) 40px; }
.back-btn { margin-bottom: 14px; }
.editor-main {
  display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 24px; align-items: start;
}
@media (max-width: 860px) { .editor-main { grid-template-columns: 1fr; } }

.pane-left { display: flex; flex-direction: column; }
.template-name { font-size: 15px; margin: 0 0 6px; }
.pane-left textarea { min-height: 100px; resize: vertical; font-family: var(--font-sans); line-height: 1.5; }
.pane-left textarea.footer-field { min-height: 60px; }

.pane-right { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; min-height: 520px; display: flex; flex-direction: column; }
.result-header {
  padding: 10px 14px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
  background: var(--panel);
}
.tabs { display: flex; gap: 2px; background: var(--paper); border-radius: 8px; padding: 3px; border: 1px solid var(--line); }
.tab-btn {
  font-family: var(--font-mono); font-size: 12px; border: none; background: transparent;
  color: var(--ink-faint); padding: 6px 12px; border-radius: 6px; cursor: pointer;
}
.tab-btn.active { background: var(--panel); color: var(--ink); box-shadow: 0 0 0 1px var(--line); }
.actions { display: flex; gap: 8px; }
.action-btn {
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  background: var(--paper); color: var(--ink); border: 1px solid var(--line);
  border-radius: 7px; padding: 7px 12px; cursor: pointer; display: flex; align-items: center; gap: 6px;
}
.action-btn:hover { border-color: var(--line-strong); }
.action-btn svg { width: 14px; height: 14px; }

.result-body { flex: 1; min-height: 0; position: relative; }
.preview-view { position: absolute; inset: 0; display: none; }
.preview-view.active { display: block; }
#preview-frame { width: 100%; height: 100%; border: none; background: #fff; }
#code-view {
  height: 100%; overflow: auto; margin: 0; padding: 18px 20px;
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.65;
  color: var(--ink-soft); white-space: pre-wrap; word-break: break-word;
}

.toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(12px);
  background: var(--ink); color: var(--paper); font-size: 13px;
  padding: 9px 16px; border-radius: 100px; opacity: 0; pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }

.type-filter { display:flex; gap:8px; margin:0 0 18px; flex-wrap:wrap; }
.chip { font:inherit; font-size:13px; padding:6px 14px; border:1px solid var(--line); border-radius:999px; background:var(--panel); color:var(--ink-soft); cursor:pointer; }
.chip.active { background:var(--ink); color:#fff; border-color:var(--ink); }
.template-card .info .tag { font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); margin:0 0 4px; }
.pane-left { max-height:calc(100vh - 140px); overflow:auto; padding-right:6px; }
.pane-right { min-height:calc(100vh - 140px); }

.nav { display:flex; gap:4px; }
.nav-btn { font:inherit; font-size:13px; padding:7px 12px; border:0; background:transparent; color:var(--ink-soft); border-radius:8px; cursor:pointer; }
.nav-btn.active { background:var(--paper); color:var(--ink); box-shadow:0 0 0 1px var(--line); }
.saved-card { position:relative; }
.saved-card .del { position:absolute; top:8px; right:8px; background:rgba(255,255,255,.92); border:1px solid var(--line); border-radius:6px; font-size:11px; padding:3px 8px; cursor:pointer; color:var(--danger); }
@media (max-width:720px){ .app-header{flex-wrap:wrap;gap:8px;} .nav{order:3;width:100%;overflow:auto;} }