* { box-sizing: border-box; }
:root { color-scheme: dark; --ink: #08131c; --panel: #0e1c27; --panel-light: #132735; --line: #284452; --text: #edf5f4; --muted: #9db1b7; --cyan: #8ae6dc; --orange: #ff896f; }
body { margin: 0; min-height: 100vh; color: var(--text); background: radial-gradient(circle at top right, #153642, var(--ink) 45%); font-family: Verdana, Arial, sans-serif; }
a { color: var(--cyan); }
.toolkit-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px clamp(20px, 5vw, 70px); background: #0e1c27; border-bottom: 1px solid var(--line); }
.brand { color: var(--cyan); font-size: 1.25rem; font-weight: 700; letter-spacing: .16em; text-decoration: none; }
.toolkit-header nav { display: flex; flex-wrap: wrap; gap: 18px; font-size: .78rem; }
.toolkit-shell { width: min(100% - 36px, 1220px); margin: auto; padding: 44px 0 70px; }
.toolkit-hero { padding: 34px; border: 1px solid var(--line); background: linear-gradient(135deg, #102936, #0e1c27); }
.eyebrow { margin: 0 0 12px; color: var(--cyan); font-size: .7rem; font-weight: 700; letter-spacing: .16em; }
h1 { margin: 0; font-size: clamp(2.6rem, 7vw, 5.4rem); line-height: .95; }
h1 span { color: var(--orange); }
.status { color: var(--muted); line-height: 1.6; }
.toolkit-summary { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; margin-top: 26px; color: var(--muted); }
.toolkit-summary strong { color: var(--orange); font-size: 2rem; }
.workspace-notice { margin: 24px 0; padding: 14px 16px; color: #ffe2d7; background: #3a251f; border-left: 4px solid var(--orange); font-size: .8rem; line-height: 1.6; }
.tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 8px; }
.tab { flex: 0 0 auto; padding: 11px 14px; color: var(--muted); background: var(--panel); border: 1px solid var(--line); font: inherit; font-size: .72rem; cursor: pointer; }
.tab[aria-selected="true"] { color: var(--ink); background: var(--cyan); border-color: var(--cyan); }
.feature-panel { margin-top: 18px; padding: 24px; background: var(--panel); border: 1px solid var(--line); }
.panel-heading { display: flex; justify-content: space-between; align-items: start; gap: 18px; }
h2 { margin: 0; font-size: clamp(1.4rem, 3vw, 2.3rem); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.feature-card { display: grid; gap: 12px; min-height: 190px; padding: 16px; background: var(--panel-light); border: 1px solid var(--line); }
.feature-number { color: var(--orange); font-family: monospace; font-size: .78rem; }
.feature-card h3 { margin: 0; font-size: .95rem; }
.feature-card textarea { width: 100%; min-height: 62px; resize: vertical; color: var(--text); background: var(--ink); border: 1px solid var(--line); font: inherit; font-size: .75rem; padding: 8px; }
.feature-card label { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: .72rem; }
button, .primary-button, .secondary-button { padding: 10px 14px; color: var(--ink); background: var(--cyan); border: 1px solid var(--cyan); font: inherit; font-size: .72rem; font-weight: 700; cursor: pointer; text-decoration: none; }
.secondary-button { color: var(--cyan); background: transparent; }
button:disabled { opacity: .5; cursor: not-allowed; }
.access-error { margin-top: 24px; padding: 28px; background: var(--panel); border: 1px solid var(--line); }
@media (max-width: 800px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .toolkit-header { align-items: flex-start; flex-direction: column; } .toolkit-hero, .feature-panel { padding: 18px; } .feature-grid { grid-template-columns: 1fr; } .panel-heading { flex-direction: column; } }