/* ═══════════════════════════════════════════════════════════
   fetchOnce — Design System
   WCAG 2.1 AA compliant, four themes, system-aware
   ═══════════════════════════════════════════════════════════ */

/* ── Skip navigation (accessibility) ── */
.skip-nav {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 0 0 6px 6px;
    text-decoration: none;
    transition: top 0.1s;
}

.skip-nav:focus {
    top: 0;
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
}

/* ── Screen-reader only ── */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ═══════════════════════════════════════════════════════════
   DESIGN TOKENS
   ═══════════════════════════════════════════════════════════ */

/* ── Corgi Light ── */
[data-theme="corgi-light"] {
    /* Brand */
    --font: "Atkinson Hyperlegible", "Trebuchet MS", sans-serif;
    --font-mono: "IBM Plex Mono", "Fira Code", "Courier New", monospace;

    /* Surfaces */
    --bg:               #fdf9f4;
    --card-bg:          #fffdf9;
    --card-highlight-bg:#fff8ee;
    --input-bg:         #fffdf9;
    --input-readonly-bg:#f5f0e8;
    --redacted-bg:      #f0e8dc;

    /* Text */
    --text:         #2c1d10;
    --text-muted:   #6b5040;
    --text-subtle:  #9e8878;
    --key-text:     #4a3420;
    --redacted-text:#9e8878;

    /* Accent & interactive */
    --accent:       #9e4d08;
    --accent-hover: #7a3a06;
    --accent-text:  #9e4d08;
    --accent-glow:  rgba(158, 77, 8, 0.14);
    --btn-bg:       #9e4d08;
    --btn-text:     #ffffff;
    --btn-hover:    #7a3a06;

    /* Brand wordmark */
    --logo-fetch:   #6b5040;
    --logo-once:    #9e4d08;

    /* Borders */
    --border:       #e0d0bc;
    --border-light: #eae0d0;
    --border-row:   #f0e8de;

    /* Shadows */
    --card-shadow:  0 1px 3px rgba(80, 50, 20, 0.07), 0 1px 2px rgba(80, 50, 20, 0.05);

    /* Semantic states */
    --warn-bg:      #fff8ed;
    --warn-border:  #f0d9a8;
    --warn-text:    #7a4a08;
    --ok-bg:        #eef7f1;
    --ok-border:    #b0d8bc;
    --ok-text:      #2a5e3a;
    --done:         #2a7a3e;
    --danger:       #c43030;
    --danger-bg:    #fef0f0;
    --danger-border:#f0b8b8;

    /* Focus */
    --focus-ring:   #9e4d08;
    --focus-bg:     rgba(158, 77, 8, 0.08);

    /* Footer */
    --footer-link:  #9e8878;

    /* Skip nav */
    --skip-bg:      #9e4d08;
    --skip-text:    #ffffff;

    /* Decorative */
    --step-bg:      #9e4d08;
    --step-text:    #ffffff;
}

/* ── Corgi Dark ── */
[data-theme="corgi-dark"] {
    --font: "Atkinson Hyperlegible", "Trebuchet MS", sans-serif;
    --font-mono: "IBM Plex Mono", "Fira Code", "Courier New", monospace;

    --bg:               #18110a;
    --card-bg:          #221810;
    --card-highlight-bg:#2a1e0e;
    --input-bg:         #1e1408;
    --input-readonly-bg:#1e1408;
    --redacted-bg:      #2a1e12;

    --text:         #f2e4ce;
    --text-muted:   #c4a882;
    --text-subtle:  #8a7060;
    --key-text:     #dcc8a8;
    --redacted-text:#8a7060;

    --accent:       #f09030;
    --accent-hover: #d4781a;
    --accent-text:  #f09030;
    --accent-glow:  rgba(240, 144, 48, 0.16);
    --btn-bg:       #9e4d08;
    --btn-text:     #ffffff;
    --btn-hover:    #c06010;

    --logo-fetch:   #c4a882;
    --logo-once:    #f09030;

    --border:       #3a2818;
    --border-light: #2e2016;
    --border-row:   #2a1e14;

    --card-shadow:  0 1px 4px rgba(0, 0, 0, 0.35);

    --warn-bg:      #221800;
    --warn-border:  #4a3010;
    --warn-text:    #f0c060;
    --ok-bg:        #0e1e12;
    --ok-border:    #1e4028;
    --ok-text:      #60c880;
    --done:         #60c880;
    --danger:       #e86060;
    --danger-bg:    #2a1010;
    --danger-border:#5a2020;

    --focus-ring:   #f09030;
    --focus-bg:     rgba(240, 144, 48, 0.12);

    --footer-link:  #8a7060;
    --skip-bg:      #f09030;
    --skip-text:    #18110a;
    --step-bg:      #9e4d08;
    --step-text:    #ffffff;
}

/* ── Tweed Light ──
   Ivy League archive. Grey flannel charcoal, deep institutional green.
   Clean, heavy, clear. Not a bank — a great library. */
[data-theme="tweed-light"] {
    --font:         "Barlow", "Trebuchet MS", sans-serif;
    --font-display: "Bricolage Grotesque", "Arial Black", sans-serif;
    --font-mono:    "IBM Plex Mono", "Courier New", monospace;

    --bg:               #f4f3ef;
    --card-bg:          #faf9f6;
    --card-highlight-bg:#eef2ed;
    --input-bg:         #faf9f6;
    --input-readonly-bg:#eceae6;
    --redacted-bg:      #e2e0dc;

    --text:         #181816;
    --text-muted:   #525250;
    --text-subtle:  #828280;
    --key-text:     #282826;
    --redacted-text:#828280;

    --accent:       #1a3a28;
    --accent-hover: #0e2418;
    --accent-text:  #1a3a28;
    --accent-glow:  rgba(26, 58, 40, 0.10);
    --btn-bg:       #1a3a28;
    --btn-text:     #ffffff;
    --btn-hover:    #0e2418;

    --logo-fetch:   #525250;
    --logo-once:    #1a3a28;

    --border:       #cac8c2;
    --border-light: #dcdad6;
    --border-row:   #e4e2de;

    --card-shadow:  0 1px 3px rgba(20, 20, 16, 0.07), 0 1px 2px rgba(20, 20, 16, 0.04);

    --warn-bg:      #faf6e4;
    --warn-border:  #d4c870;
    --warn-text:    #5a5000;
    --ok-bg:        #eaf2ec;
    --ok-border:    #a0c8a8;
    --ok-text:      #1a4828;
    --done:         #1a5e30;
    --danger:       #a82020;
    --danger-bg:    #f8eaea;
    --danger-border:#d8a8a8;

    --focus-ring:   #1a3a28;
    --focus-bg:     rgba(26, 58, 40, 0.07);

    --footer-link:  #828280;
    --skip-bg:      #1a3a28;
    --skip-text:    #ffffff;
    --step-bg:      #1a3a28;
    --step-text:    #ffffff;
}

/* ── Tweed Dark ── */
[data-theme="tweed-dark"] {
    --font:         "Barlow", "Trebuchet MS", sans-serif;
    --font-display: "Bricolage Grotesque", "Arial Black", sans-serif;
    --font-mono:    "IBM Plex Mono", "Courier New", monospace;

    --bg:               #111210;
    --card-bg:          #181b17;
    --card-highlight-bg:#1c2419;
    --input-bg:         #141614;
    --input-readonly-bg:#141614;
    --redacted-bg:      #1c201a;

    --text:         #eceae4;
    --text-muted:   #9a9a92;
    --text-subtle:  #5e5e58;
    --key-text:     #d0cec8;
    --redacted-text:#5e5e58;

    --accent:       #5a9870;
    --accent-hover: #4a8060;
    --accent-text:  #5a9870;
    --accent-glow:  rgba(90, 152, 112, 0.13);
    --btn-bg:       #1a3a28;
    --btn-text:     #ffffff;
    --btn-hover:    #254f38;

    --logo-fetch:   #9a9a92;
    --logo-once:    #5a9870;

    --border:       #262822;
    --border-light: #1e2018;
    --border-row:   #1c1e18;

    --card-shadow:  0 1px 4px rgba(0, 0, 0, 0.5);

    --warn-bg:      #1a1c06;
    --warn-border:  #383808;
    --warn-text:    #c0c040;
    --ok-bg:        #0a1810;
    --ok-border:    #183820;
    --ok-text:      #5a9870;
    --done:         #5a9870;
    --danger:       #c04040;
    --danger-bg:    #200c0c;
    --danger-border:#502020;

    --focus-ring:   #5a9870;
    --focus-bg:     rgba(90, 152, 112, 0.10);

    --footer-link:  #5e5e58;
    --skip-bg:      #5a9870;
    --skip-text:    #111210;
    --step-bg:      #1a3a28;
    --step-text:    #ffffff;
}

/* ═══════════════════════════════════════════════════════════
   HIGH CONTRAST OVERRIDES (prefers-contrast: more)
   Each theme gets harder borders, darker text, higher ratios
   ═══════════════════════════════════════════════════════════ */

@media (prefers-contrast: more) {
    [data-theme="corgi-light"] {
        --text-muted:   #3c2818;
        --text-subtle:  #5c4030;
        --border:       #8a6040;
        --border-light: #a08060;
        --border-row:   #a08060;
        --warn-text:    #5c3000;
        --footer-link:  #5c4030;
        --card-shadow:  0 0 0 1px #8a6040;
        --focus-ring:   #5a2800;
        --accent-glow:  rgba(94, 40, 0, 0.2);
    }

    [data-theme="corgi-dark"] {
        --text-muted:   #e4c898;
        --text-subtle:  #b89878;
        --border:       #5a4030;
        --border-light: #4a3020;
        --border-row:   #4a3020;
        --footer-link:  #b89878;
        --card-shadow:  0 0 0 1px #5a4030;
        --focus-ring:   #ffc060;
        --accent:       #ffc060;
        --accent-text:  #ffc060;
    }

    [data-theme="tweed-light"] {
        --text-muted:   #202820;
        --text-subtle:  #3a4838;
        --border:       #606858;
        --border-light: #808878;
        --border-row:   #808878;
        --footer-link:  #3a4838;
        --card-shadow:  0 0 0 1px #606858;
        --focus-ring:   #004820;
        --accent-glow:  rgba(0, 72, 32, 0.2);
    }

    [data-theme="tweed-dark"] {
        --text-muted:   #c0d8c4;
        --text-subtle:  #88a88c;
        --border:       #3a5040;
        --border-light: #2a3c30;
        --border-row:   #2a3c30;
        --footer-link:  #88a88c;
        --card-shadow:  0 0 0 1px #3a5040;
        --focus-ring:   #80e898;
        --accent:       #80e898;
        --accent-text:  #80e898;
    }

    /* All themes: stronger focus ring */
    [data-theme] *:focus-visible {
        outline-width: 4px !important;
    }
}

/* ═══════════════════════════════════════════════════════════
   RESET
   ═══════════════════════════════════════════════════════════ */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ═══════════════════════════════════════════════════════════
   BASE STYLES
   ═══════════════════════════════════════════════════════════ */

html {
    font-size: 16px; /* Anchor for rem — supports browser font-size preferences */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    line-height: 1.6;
    min-height: 100vh;
    letter-spacing: 0.005em;
}

/* Global focus indicator — WCAG 2.4.7 Focus Visible */
*:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Remove default focus for mouse users without affecting keyboard users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Skip nav colour — set after body so --skip-* vars are live */
.skip-nav {
    background: var(--skip-bg);
    color: var(--skip-text);
}

.container {
    max-width: 660px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 2.5rem;
}

/* ═══════════════════════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════════════════════ */

h1, h2, h3, h4 {
    font-family: var(--font-display, var(--font));
    line-height: 1.3;
}

/* ═══════════════════════════════════════════════════════════
   LAYOUT — HEADER
   ═══════════════════════════════════════════════════════════ */

header[role="banner"] {
    text-align: center;
    margin-bottom: 2.25rem;
    position: relative;
}

.header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    border-radius: 6px;
}

.logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.04em;
    font-family: var(--font-display, var(--font));
}

.tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.125rem;
    letter-spacing: 0.02em;
}

.how-link {
    display: inline-block;
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--accent-text);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    border-radius: 4px;
}

.how-link:hover {
    opacity: 0.8;
}

/* ── Header controls (family picker + dark/light toggle) ── */
.header-controls {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* ── Theme family picker ── */
.theme-family-picker {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 7px;
    overflow: hidden;
}

.theme-family-btn {
    background: none;
    border: none;
    border-right: 1px solid var(--border);
    padding: 0 0.625rem;
    height: 38px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font);
    color: var(--text-muted);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.theme-family-btn:last-child {
    border-right: none;
}

.theme-family-btn[aria-pressed="true"] {
    background: var(--accent-glow);
    color: var(--accent-text);
}

.theme-family-btn:hover {
    background: var(--focus-bg);
    color: var(--accent-text);
}

/* ── Dark/light toggle ── */
.theme-toggle {
    width: 40px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border);
    border-radius: 7px;
    cursor: pointer;
    color: var(--text-muted);
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent-text);
    color: var(--accent-text);
    background: var(--focus-bg);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    display: block;
}

.theme-toggle .icon-light { display: none; }
.theme-toggle .icon-dark  { display: block; }

[data-theme$="-dark"] .theme-toggle .icon-light { display: block; }
[data-theme$="-dark"] .theme-toggle .icon-dark  { display: none; }

/* ═══════════════════════════════════════════════════════════
   LAYOUT — CARDS
   ═══════════════════════════════════════════════════════════ */

.card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.375rem;
    margin-bottom: 0.875rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-light);
}

.card-highlight {
    border-left: 3px solid var(--accent);
    background: var(--card-highlight-bg);
}

.card h2 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
    letter-spacing: -0.01em;
    font-family: var(--font-display, var(--font));
}

/* ═══════════════════════════════════════════════════════════
   STEPS
   ═══════════════════════════════════════════════════════════ */

.step-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.step-header h2 {
    margin-bottom: 0;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    min-width: 24px;
    background: var(--step-bg);
    color: var(--step-text);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    font-family: var(--font, sans-serif);
}

.step-done {
    background: var(--done);
}

/* ═══════════════════════════════════════════════════════════
   MODE TOGGLE
   ═══════════════════════════════════════════════════════════ */

.mode-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 7px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.mode-toggle button {
    padding: 0.4375rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font);
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.mode-toggle button.active {
    background: var(--btn-bg);
    color: var(--btn-text);
}

[data-theme^="tweed"] .mode-toggle {
    border-radius: 2px;
}

[data-theme^="tweed"] .mode-toggle button {
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════
   MESSAGE INPUT
   ═══════════════════════════════════════════════════════════ */

.message-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 1rem;
    font-family: var(--font);
    outline: none;
    background: var(--input-bg);
    color: var(--text);
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.message-input:focus-visible {
    border-color: var(--focus-ring);
    box-shadow: 0 0 0 3px var(--accent-glow);
    outline: none;
}

.message-input::placeholder {
    color: var(--text-subtle);
}

[data-theme^="tweed"] .message-input {
    border-radius: 2px;
}

/* ═══════════════════════════════════════════════════════════
   REVEALED MESSAGE
   ═══════════════════════════════════════════════════════════ */

.revealed-message {
    font-size: 1rem;
    line-height: 1.7;
    padding: 1rem;
    background: var(--input-readonly-bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    white-space: pre-wrap;
    word-break: break-word;
    margin-bottom: 0.875rem;
}

[data-theme^="tweed"] .revealed-message {
    border-radius: 2px;
}

/* ═══════════════════════════════════════════════════════════
   FORM ELEMENTS
   ═══════════════════════════════════════════════════════════ */

.pair-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    align-items: center;
}

.pair-row input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 1rem;
    font-family: var(--font);
    outline: none;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
    min-width: 0;
}

.pair-row input:focus-visible {
    border-color: var(--focus-ring);
    box-shadow: 0 0 0 3px var(--accent-glow);
    outline: none;
}

.pair-row input::placeholder {
    color: var(--text-subtle);
}

.btn-remove {
    background: none;
    border: 1px solid var(--border-light);
    border-radius: 7px;
    width: 36px;
    height: 36px;
    min-width: 36px;
    cursor: pointer;
    font-size: 1.125rem;
    color: var(--text-subtle);
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.btn-remove:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: var(--danger-bg);
}

/* 44px minimum touch target via padding trick */
.btn-secondary {
    background: none;
    border: 1.5px dashed var(--border);
    border-radius: 7px;
    padding: 0.5625rem 0.875rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: var(--font);
    color: var(--text-muted);
    width: 100%;
    margin-top: 0.5rem;
    transition: border-color 0.15s, color 0.15s;
}

.btn-secondary:hover {
    border-color: var(--accent-text);
    color: var(--accent-text);
}

.btn-primary {
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 7px;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-family: var(--font);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
    width: 100%;
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    background: var(--btn-hover);
}

.btn-primary:disabled {
    background: var(--border);
    color: var(--text-subtle);
    cursor: not-allowed;
}

select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 1rem;
    font-family: var(--font);
    outline: none;
    background: var(--input-bg);
    color: var(--text);
    cursor: pointer;
    appearance: auto;
}

select:focus-visible {
    border-color: var(--focus-ring);
    box-shadow: 0 0 0 3px var(--accent-glow);
    outline: none;
}

/* ── Link input display ── */
.link-display {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.875rem;
}

.link-display input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 0.8125rem;
    font-family: var(--font-mono);
    background: var(--input-readonly-bg);
    color: var(--text);
    outline: none;
    min-width: 0;
}

.link-display input:focus-visible {
    border-color: var(--focus-ring);
    box-shadow: 0 0 0 3px var(--accent-glow);
    outline: none;
}

.link-display .btn-primary {
    width: auto;
    flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   ALERTS / CALLOUTS
   ═══════════════════════════════════════════════════════════ */

.error-inline {
    color: var(--error-text, #b91c1c);
    font-size: 0.9rem;
    margin-top: 0.75rem;
}

.warning {
    color: var(--warn-text);
    font-size: 0.9375rem;
    background: var(--warn-bg);
    padding: 0.625rem 0.875rem;
    border-radius: 7px;
    border: 1px solid var(--warn-border);
    margin-top: 0.875rem;
    line-height: 1.5;
}

.success {
    color: var(--ok-text);
    font-size: 0.9375rem;
    background: var(--ok-bg);
    padding: 0.625rem 0.875rem;
    border-radius: 7px;
    border: 1px solid var(--ok-border);
    margin-top: 0.875rem;
    line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════
   PREVIEW TABLE (revealed secrets)
   ═══════════════════════════════════════════════════════════ */

.preview-table {
    margin-bottom: 0.875rem;
    border: 1px solid var(--border-row);
    border-radius: 8px;
    overflow: hidden;
}

.preview-row {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    padding: 0.75rem 0.875rem;
    border-bottom: 1px solid var(--border-row);
}

.preview-row:last-child {
    border-bottom: none;
}

.preview-key {
    font-weight: 600;
    font-size: 0.9375rem;
    min-width: 110px;
    color: var(--key-text);
    font-family: var(--font-display, var(--font));
    flex-shrink: 0;
}

.preview-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    flex: 1;
    word-break: break-all;
    line-height: 1.5;
}

.preview-value.redacted {
    color: var(--redacted-text);
    background: var(--redacted-bg);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.08em;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

/* ═══════════════════════════════════════════════════════════
   COPY / EXPORT BUTTONS
   ═══════════════════════════════════════════════════════════ */

.btn-copy {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.3125rem 0.625rem;
    font-size: 0.8125rem;
    font-family: var(--font);
    cursor: pointer;
    color: var(--text-muted);
    transition: border-color 0.15s, color 0.15s;
    flex-shrink: 0;
    line-height: 1.4;
}

.btn-copy:hover {
    border-color: var(--accent-text);
    color: var(--accent-text);
}

.revealed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.revealed-header h2 {
    margin-bottom: 0;
}

.export-buttons {
    display: flex;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.revealed-actions {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 0.875rem;
    flex-wrap: wrap;
}

.revealed-actions .success {
    flex: 1;
    margin-top: 0;
    min-width: 0;
}

.revealed-actions .btn-secondary {
    width: auto;
    margin-top: 0;
    flex-shrink: 0;
    align-self: flex-start;
}

.btn-new-secret {
    display: inline-block;
    margin-top: 1.5rem;
    text-align: center;
    text-decoration: none;
}

/* ═══════════════════════════════════════════════════════════
   ERROR PAGES
   ═══════════════════════════════════════════════════════════ */

.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.error-container {
    text-align: center;
    max-width: 420px;
    padding: 2.5rem 1.25rem;
}

.error-container .logo-link {
    margin-bottom: 2rem;
}

.error-code {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--accent-text);
    line-height: 1;
    margin-top: 1.5rem;
    letter-spacing: -0.05em;
    font-family: var(--font-display, var(--font));
}

.error-title {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-top: 0.5rem;
    color: var(--text);
    font-family: var(--font-display, var(--font));
}

.error-message {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    line-height: 1.6;
}

.error-container .copyright {
    margin-top: 2.5rem;
}

/* ═══════════════════════════════════════════════════════════
   BRAND WORDMARK
   ═══════════════════════════════════════════════════════════ */

.brand {
    font-weight: 700;
    white-space: nowrap;
    font-family: var(--font-display, var(--font));
}

.brand-fetch { color: var(--logo-fetch); }
.brand-once  { color: var(--logo-once); }

/* ═══════════════════════════════════════════════════════════
   INLINE CODE
   ═══════════════════════════════════════════════════════════ */

code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    padding: 0.1em 0.35em;
    border-radius: 4px;
    background: var(--redacted-bg);
    color: var(--accent-text);
}

/* ═══════════════════════════════════════════════════════════
   UTILITY
   ═══════════════════════════════════════════════════════════ */

.hidden {
    display: none !important;
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */

footer[role="contentinfo"] {
    text-align: center;
    margin-top: 2.5rem;
    color: var(--text-subtle);
    font-size: 0.875rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

.footer-links {
    margin-top: 0.75rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem 0;
}

.footer-links a {
    color: var(--footer-link);
    text-decoration: none;
    font-size: 0.8125rem;
    letter-spacing: 0.01em;
    padding: 0.25rem 0.375rem;
    border-radius: 4px;
}

.footer-links a:hover {
    color: var(--accent-text);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-links .dot {
    color: var(--border);
    font-size: 0.75rem;
    padding: 0 0.125rem;
    user-select: none;
}

.copyright {
    margin-top: 0.625rem;
    font-size: 0.8125rem;
    letter-spacing: 0.04em;
    color: var(--footer-link);
}

.copyright a {
    color: inherit;
    text-decoration: none;
    border-radius: 4px;
}

.copyright a:hover {
    color: var(--accent-text);
}

/* ═══════════════════════════════════════════════════════════
   PROSE PAGES (how-it-works, privacy, terms, security, etc.)
   ═══════════════════════════════════════════════════════════ */

.prose .card {
    line-height: 1.7;
}

.prose .card p {
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.prose .card p:last-child {
    margin-bottom: 0;
}

.prose .card h2 {
    color: var(--text);
    margin-bottom: 0.5rem;
}

/* Tweed prose: clean horizontal sections */
[data-theme^="tweed"] .prose .card {
    background: transparent;
    box-shadow: none;
    border: none;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: 0 0 1.625rem;
    margin-bottom: 1.625rem;
}

[data-theme^="tweed"] .prose .card:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

[data-theme^="tweed"] .prose .card h2 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-text);
    font-family: var(--font, sans-serif);
    font-weight: 600;
}

[data-theme^="tweed"] .prose .card-highlight {
    border-left: none;
    background: transparent;
    padding-left: 0;
}

/* ═══════════════════════════════════════════════════════════
   BREADCRUMB
   ═══════════════════════════════════════════════════════════ */

.breadcrumb {
    margin-bottom: 1.75rem;
}

.breadcrumb-link {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    border-radius: 4px;
    padding: 0.125rem 0;
    transition: color 0.15s;
}

.breadcrumb-link:hover {
    color: var(--accent-text);
    text-decoration: underline;
    text-underline-offset: 3px;
}

[data-theme^="tweed"] .breadcrumb-link {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    border-radius: 0;
}

/* ═══════════════════════════════════════════════════════════
   PROSE ARTICLE (how-it-works and similar long-form pages)
   ═══════════════════════════════════════════════════════════ */

.prose-article {
    line-height: 1.75;
}

.prose-article h1 {
    font-size: 1.625rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    color: var(--text);
    font-family: var(--font-display, var(--font));
    line-height: 1.2;
}

.prose-article section {
    padding: 1.75rem 0;
    border-top: 1px solid var(--border-light);
}

.prose-article section:first-of-type {
    border-top: none;
    padding-top: 0;
}

.prose-article h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.625rem;
    font-family: var(--font-display, var(--font));
    letter-spacing: -0.01em;
}

.prose-article p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    max-width: 64ch;
}

.prose-article p:last-child {
    margin-bottom: 0;
}

.prose-article code {
    font-size: 0.875rem;
}

/* Corgi prose: each section styled as a card */
[data-theme^="corgi"] .prose-article section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 2px 8px var(--accent-glow);
    padding: 1.5rem 1.75rem;
    margin-bottom: 1rem;
    border-top: 1px solid var(--border);
}

[data-theme^="corgi"] .prose-article section:first-of-type {
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
}

/* Tweed prose: Bricolage Grotesque heavy headings, ruled sections, label-style h2 */
[data-theme^="tweed"] .prose-article h1 {
    font-size: 2.25rem;
    font-weight: 800;
    font-style: normal;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 2.25rem;
}

[data-theme^="tweed"] .prose-article h2 {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-family: var(--font);
    font-weight: 700;
    color: var(--accent-text);
    margin-bottom: 0.625rem;
}

[data-theme^="tweed"] .prose-article section {
    border-top-color: var(--border);
}

[data-theme^="tweed"] .prose-article section:first-of-type {
    border-top: 2px solid var(--accent);
    padding-top: 1.75rem;
}

/* ═══════════════════════════════════════════════════════════
   CORGI — VISUAL CHARACTER
   Warm, editorial, handcrafted. Like a tool made by someone
   who genuinely cared. Ink on parchment, honey on oak.
   ═══════════════════════════════════════════════════════════ */

/* ── Warm atmospheric gradient behind content — fixed so it doesn't scroll ── */
[data-theme="corgi-light"] body {
    background-image:
        radial-gradient(ellipse 70% 50% at 12% 30%, rgba(212, 136, 42, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse 50% 60% at 88% 70%, rgba(180, 100, 20, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 60% 10%, rgba(212, 160, 60, 0.04) 0%, transparent 55%);
    background-attachment: fixed;
}

[data-theme="corgi-dark"] body {
    background-image:
        radial-gradient(ellipse 70% 50% at 12% 30%, rgba(240, 144, 48, 0.07) 0%, transparent 60%),
        radial-gradient(ellipse 50% 60% at 88% 70%, rgba(200, 100, 20, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 60% 10%, rgba(240, 160, 60, 0.04) 0%, transparent 55%);
    background-attachment: fixed;
}

/* ── Card: warm and substantial ── */
[data-theme^="corgi"] .card {
    transition: box-shadow 0.22s ease;
}

[data-theme^="corgi"] .card:hover {
    box-shadow: var(--card-shadow), 0 0 0 1px rgba(158, 77, 8, 0.07),
                0 4px 16px rgba(158, 77, 8, 0.06);
}

/* ── Step number: warm circle with glow ── */
[data-theme^="corgi"] .step-number {
    box-shadow: 0 2px 8px rgba(158, 77, 8, 0.25);
    font-size: 0.8125rem;
}

/* ── Tagline: light italic ── */
[data-theme^="corgi"] .tagline {
    font-style: italic;
}

/* ── Primary button: warm gradient + honey shadow ── */
[data-theme^="corgi"] .btn-primary {
    background: linear-gradient(160deg, #b05a10 0%, #9e4d08 100%);
    box-shadow: 0 4px 16px rgba(158, 77, 8, 0.3), 0 1px 3px rgba(158, 77, 8, 0.18);
    transition: background 0.18s ease, box-shadow 0.18s ease, transform 0.12s ease;
}

[data-theme^="corgi"] .btn-primary:hover:not(:disabled) {
    background: linear-gradient(160deg, #924410 0%, #7a3a06 100%);
    box-shadow: 0 6px 22px rgba(158, 77, 8, 0.38), 0 2px 6px rgba(158, 77, 8, 0.22);
    transform: translateY(-1px);
}

[data-theme^="corgi"] .btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(158, 77, 8, 0.22);
}

/* ── Link display: printed-ticket feel ── */
[data-theme^="corgi"] .link-display {
    flex-direction: column;
    gap: 0.625rem;
    border-top: 2px dashed var(--border);
    border-bottom: 2px dashed var(--border);
    padding: 0.875rem 0;
    margin: 0.75rem 0;
}

[data-theme^="corgi"] .link-display input {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-align: center;
    letter-spacing: 0.02em;
}

[data-theme^="corgi"] .link-display .btn-primary {
    width: 100%;
    flex-shrink: unset;
}

/* ── Entry animation: staggered warm rise ── */
@keyframes corgi-rise {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-theme^="corgi"] main > .card,
[data-theme^="corgi"] main > section.card {
    animation: corgi-rise 0.42s cubic-bezier(0.22, 1, 0.36, 1) both;
}

[data-theme^="corgi"] main > .card:nth-child(2),
[data-theme^="corgi"] main > section.card:nth-child(2) {
    animation-delay: 0.07s;
}

[data-theme^="corgi"] main > .card:nth-child(3),
[data-theme^="corgi"] main > section.card:nth-child(3) {
    animation-delay: 0.14s;
}

[data-theme^="corgi"] main > .card:nth-child(4),
[data-theme^="corgi"] main > section.card:nth-child(4) {
    animation-delay: 0.21s;
}

/* ── Warning / success alerts: warmer corners ── */
[data-theme^="corgi"] .warning,
[data-theme^="corgi"] .success {
    border-radius: 8px;
}

/* ── Preview table: warm row separators ── */
[data-theme^="corgi"] .preview-row:nth-child(even) {
    background: rgba(158, 77, 8, 0.025);
}


/* ═══════════════════════════════════════════════════════════
   TWEED — VISUAL CHARACTER
   British institutional precision. A private bank's secure
   document portal. Nothing decorative. Everything deliberate.
   ═══════════════════════════════════════════════════════════ */

/* ── Diagonal flannel twill on body — fixed so it doesn't scroll ── */
[data-theme="tweed-light"] body {
    background-image:
        repeating-linear-gradient(
            45deg,
            rgba(26, 58, 40, 0.018) 0px, rgba(26, 58, 40, 0.018) 1px,
            transparent 1px, transparent 5px
        ),
        repeating-linear-gradient(
            -45deg,
            rgba(26, 58, 40, 0.018) 0px, rgba(26, 58, 40, 0.018) 1px,
            transparent 1px, transparent 5px
        );
    background-attachment: fixed;
}

[data-theme="tweed-dark"] body {
    background-image:
        repeating-linear-gradient(
            45deg,
            rgba(90, 152, 112, 0.045) 0px, rgba(90, 152, 112, 0.045) 1px,
            transparent 1px, transparent 5px
        ),
        repeating-linear-gradient(
            -45deg,
            rgba(90, 152, 112, 0.045) 0px, rgba(90, 152, 112, 0.045) 1px,
            transparent 1px, transparent 5px
        );
    background-attachment: fixed;
}

/* ── Header: left-aligned, ruled base ── */
[data-theme^="tweed"] header[role="banner"] {
    text-align: left;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.625rem;
    margin-bottom: 2.25rem;
}

[data-theme^="tweed"] .header-inner {
    align-items: flex-start;
}

[data-theme^="tweed"] .logo {
    font-family: var(--font-display);
    font-size: 1.375rem;
    letter-spacing: -0.03em;
}

[data-theme^="tweed"] .tagline {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-top: 0.125rem;
}

[data-theme^="tweed"] .how-link {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    text-decoration: none;
    color: var(--accent-text);
    margin-top: 0.25rem;
}

[data-theme^="tweed"] .how-link:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
    opacity: 1;
}

/* ── Footer: left-aligned to match header ── */
[data-theme^="tweed"] footer[role="contentinfo"] {
    text-align: left;
    border-top-width: 2px;
    border-top-color: var(--accent);
}

[data-theme^="tweed"] .footer-links {
    justify-content: flex-start;
}

[data-theme^="tweed"] .copyright {
    text-align: left;
}

/* ── Cards: sharp boxes, no radius, flat border ── */
[data-theme^="tweed"] main .card {
    background: var(--card-bg);
    box-shadow: none;
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 1.625rem;
    margin-bottom: 0.75rem;
}

[data-theme^="tweed"] main .card:first-child {
    border-top: 2px solid var(--accent);
}

[data-theme^="tweed"] main .card.card-highlight {
    border-left: 2px solid var(--accent);
    background: var(--card-highlight-bg);
}

/* ── Step indicators: "STEP 01" small-caps label ── */
[data-theme^="tweed"] main {
    counter-reset: steps;
}

[data-theme^="tweed"] .step-header {
    counter-increment: steps;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    margin-bottom: 1.25rem;
}

[data-theme^="tweed"] .step-number {
    background: none;
    color: var(--accent-text);
    width: auto;
    height: auto;
    border-radius: 0;
    font-size: 0;          /* hide the raw digit */
    box-shadow: none;
}

[data-theme^="tweed"] .step-number::before {
    content: "STEP " counter(steps, decimal-leading-zero);
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-family: var(--font);
    color: var(--accent-text);
}

[data-theme^="tweed"] .step-done {
    background: none;
    color: var(--done);
}

[data-theme^="tweed"] .step-done::before {
    content: "✓ COMPLETE";
    color: var(--done);
}

[data-theme^="tweed"] .step-header h2 {
    font-family: var(--font-display);
    font-size: 1.1875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

/* ── Inputs: sharp, institutional ── */
[data-theme^="tweed"] .pair-row input,
[data-theme^="tweed"] select,
[data-theme^="tweed"] .link-display input,
[data-theme^="tweed"] .btn-remove,
[data-theme^="tweed"] .btn-secondary,
[data-theme^="tweed"] .btn-primary,
[data-theme^="tweed"] .btn-copy,
[data-theme^="tweed"] .warning,
[data-theme^="tweed"] .success,
[data-theme^="tweed"] .preview-table,
[data-theme^="tweed"] .card {
    border-radius: 2px;
}

/* ── Primary button: flat, authoritative ── */
[data-theme^="tweed"] .btn-primary {
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-size: 0.8125rem;
    font-weight: 700;
    box-shadow: none;
    border-radius: 2px;
    transition: background 0.15s ease;
}

[data-theme^="tweed"] .btn-primary:hover:not(:disabled) {
    background: var(--btn-hover);
    transform: none;
    box-shadow: none;
}

/* ── Secondary button: clean dashed rule ── */
[data-theme^="tweed"] .btn-secondary {
    border-style: solid;
    border-width: 1px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 2px;
}

/* ── Preview table: structured, no rounded corners ── */
[data-theme^="tweed"] .preview-key {
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0;
}

/* ── Warnings and success: left-border accent ── */
[data-theme^="tweed"] .warning {
    border-left: 3px solid var(--warn-border);
    border-radius: 0 2px 2px 0;
    background: var(--warn-bg);
}

[data-theme^="tweed"] .success {
    border-left: 3px solid var(--ok-border);
    border-radius: 0 2px 2px 0;
    background: var(--ok-bg);
}

/* ── Link display: clean document field ── */
[data-theme^="tweed"] .link-display input {
    font-size: 0.8125rem;
    background: var(--input-readonly-bg);
    border: 1px solid var(--border);
    border-radius: 2px;
}

/* ── Headings in all cards: Spectral ── */
[data-theme^="tweed"] .card h2 {
    font-family: var(--font-display);
}

/* ── Error code: Bricolage Grotesque heavy ── */
[data-theme^="tweed"] .error-code {
    font-family: var(--font-display);
    font-weight: 800;
    font-style: normal;
    letter-spacing: -0.05em;
}

/* ── Tweed prose pages: whole content in one semi-transparent box ──
   Uses :has() to target only pages with prose content, not action pages.
   color-mix() applies alpha without making children transparent. */
[data-theme^="tweed"] main:has(.prose-article),
[data-theme^="tweed"] main:has(.prose),
[data-theme^="tweed"] main:has(.timeline) {
    background: color-mix(in srgb, var(--card-bg) 62%, transparent);
    border: 1px solid var(--border);
    border-top: 2px solid var(--accent);
    padding: 2rem;
    margin-bottom: 1rem;
}

/* Within the box, prose sections already have their own border-top rules — leave them */
/* Reset the card backgrounds inside .prose since the outer box is the container now */
[data-theme^="tweed"] main:has(.prose) .prose .card {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 1.625rem 0;
    margin-bottom: 0;
    border-top: 1px solid var(--border);
    border-radius: 0;
}

[data-theme^="tweed"] main:has(.prose) .prose .card:first-child {
    border-top: none;
    padding-top: 0;
}

/* ── Tweed family picker: sharp corners, small-caps ── */
[data-theme^="tweed"] .theme-family-picker {
    border-radius: 2px;
}
[data-theme^="tweed"] .theme-family-btn {
    border-radius: 0;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.6875rem;
}
[data-theme^="tweed"] .theme-toggle {
    border-radius: 2px;
}

/* ── Mobile: restore left-padding for tweed header toggle ── */
@media (max-width: 480px) {
    [data-theme^="tweed"] header[role="banner"] {
        padding-top: 3.5rem;
    }
}


/* ═══════════════════════════════════════════════════════════
   ROADMAP TIMELINE
   ═══════════════════════════════════════════════════════════ */

.tl-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.tl-heading {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 0.5rem;
}

.tl-subheading {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0;
    max-width: 52ch;
    margin-inline: auto;
}

/* ── Outer container ── */
.timeline {
    position: relative;
    padding: 0.5rem 0 2rem;
}

/* ── The pole / spine ── */
.tl-spine {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    transform: translateX(-50%);
    background: var(--border);
    z-index: 0;
}

[data-theme^="corgi"] .tl-spine {
    background: linear-gradient(to bottom, var(--border-light), var(--border), var(--border-light));
}

[data-theme^="tweed"] .tl-spine {
    background: var(--accent);
    opacity: 0.25;
}

/* ── Each row: 3-column grid ── */
.tl-item {
    display: grid;
    grid-template-columns: 1fr 44px 1fr;
    align-items: center;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 1;
}

/* ── Centre node ── */
.tl-node {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.tl-dot {
    display: block;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg);
    box-shadow: 0 0 0 2px var(--accent);
    flex-shrink: 0;
}

/* Corgi: pulsing dot on "Next up" */
[data-theme^="corgi"] .tl-item:has(.next) .tl-dot {
    animation: tl-pulse 2.2s ease-in-out infinite;
}

@keyframes tl-pulse {
    0%, 100% { box-shadow: 0 0 0 2px var(--accent); }
    50%       { box-shadow: 0 0 0 6px var(--accent-glow); }
}

/* Tweed: square dot, no pulse */
[data-theme^="tweed"] .tl-dot {
    border-radius: 0;
    width: 12px;
    height: 12px;
    box-shadow: none;
    border: 2px solid var(--accent);
    background: var(--accent);
}

/* ── Connector lines from box to pole ── */
.tl-content {
    padding: 0.5rem;
}

.tl-box-left {
    padding-right: 1.25rem;
    display: flex;
    justify-content: flex-end;
}

.tl-box-right {
    padding-left: 1.25rem;
    display: flex;
    justify-content: flex-start;
}

.tl-empty {
    /* spacer column on the other side */
}

/* ── The box itself ── */
.tl-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    max-width: 340px;
    width: 100%;
    position: relative;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.tl-box h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0.375rem 0 0.625rem;
    line-height: 1.3;
}

.tl-box p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

/* Corgi: lift on hover, warm shadow */
[data-theme^="corgi"] .tl-box {
    box-shadow: 0 2px 8px var(--accent-glow);
}

[data-theme^="corgi"] .tl-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--accent-glow);
}

/* Tweed: square, flat, accent top border */
[data-theme^="tweed"] .tl-box {
    border-radius: 0;
    box-shadow: none;
    border-top: 2px solid var(--border);
}

[data-theme^="tweed"] .tl-box.shipped,
[data-theme^="tweed"] .tl-box.next {
    border-top-color: var(--accent);
}

/* ── Status badges ── */
.tl-status {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 0.2em 0.6em;
    border-radius: 4px;
}

.tl-box.shipped .tl-status {
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
}

.tl-box.next .tl-status {
    background: color-mix(in srgb, #2a7a3b 12%, transparent);
    color: #2a7a3b;
}

.tl-box.planned .tl-status {
    background: color-mix(in srgb, var(--text-muted) 10%, transparent);
    color: var(--text-muted);
}

[data-theme^="corgi"] .tl-box.shipped {
    border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}

[data-theme^="corgi"] .tl-box.next {
    border-color: color-mix(in srgb, #2a7a3b 35%, transparent);
    border-left: 3px solid #2a7a3b;
}

[data-theme^="corgi"] .tl-box.next .tl-dot {
    background: #2a7a3b;
    box-shadow: 0 0 0 2px #2a7a3b;
}

[data-theme^="tweed"] .tl-status {
    border-radius: 0;
    letter-spacing: 0.12em;
}

/* ── Mobile: collapse to single column ── */
@media (max-width: 640px) {
    .tl-spine {
        left: 20px;
    }

    .tl-item {
        grid-template-columns: 44px 1fr;
        grid-template-rows: auto;
        margin-bottom: 2rem;
    }

    .tl-box-left,
    .tl-box-right {
        grid-column: 2;
        grid-row: 1;
        padding-left: 1rem;
        padding-right: 0;
        justify-content: flex-start;
    }

    .tl-node {
        grid-column: 1;
        grid-row: 1;
        justify-content: flex-start;
        padding-left: 12px;
    }

    .tl-empty {
        display: none;
    }

    .tl-box {
        max-width: 100%;
    }
}

/* ═══════════════════════════════════════════════════════════
   SECURITY WHITEPAPER
   Formal document styling. Screen and print.
   ═══════════════════════════════════════════════════════════ */

.whitepaper {
    font-family: "Georgia", "Times New Roman", serif;
    color: var(--text);
    max-width: 72ch;
    margin: 0 auto;
    line-height: 1.75;
}

/* Cover page */
.wp-cover {
    border: 2px solid var(--border);
    border-top: 6px solid var(--accent);
    padding: 2.5rem 2.5rem 2rem;
    margin-bottom: 3rem;
    background: var(--card-bg);
}

.wp-cover-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 2rem;
}

.wp-cover-brand {
    font-family: var(--font);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.wp-title {
    font-size: 1.625rem;
    font-weight: 700;
    font-family: "Georgia", serif;
    line-height: 1.25;
    color: var(--text);
    margin: 0 0 0.375rem;
}

.wp-subtitle {
    font-size: 1rem;
    font-family: var(--font);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin: 0 0 1.75rem;
}

.wp-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 1.5rem;
    border-top: 1px solid var(--border);
    padding-top: 1.25rem;
    margin-bottom: 1.5rem;
}

.wp-meta-row {
    display: contents;
}

.wp-meta dt {
    font-family: var(--font);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0.25rem 0;
}

.wp-meta dd {
    font-family: var(--font);
    font-size: 0.875rem;
    color: var(--text);
    margin: 0;
    padding: 0.25rem 0;
}

.wp-abstract {
    font-size: 0.9375rem;
    color: var(--text-muted);
    font-style: italic;
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    margin: 0;
}

/* Table of contents */
.wp-toc {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 1.5rem 2rem;
    margin-bottom: 2.5rem;
}

.wp-toc-heading {
    font-family: var(--font);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 0 0 0.875rem;
}

.wp-toc-list {
    margin: 0;
    padding-left: 1.25rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 2rem;
}

.wp-toc-list li {
    font-family: var(--font);
    font-size: 0.875rem;
}

.wp-toc-list a {
    color: var(--accent-text);
    text-decoration: none;
}

.wp-toc-list a:hover {
    text-decoration: underline;
}

/* Sections */
.wp-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-light);
}

.wp-section:last-of-type {
    border-bottom: none;
}

.wp-section h2 {
    font-size: 1.125rem;
    font-weight: 700;
    font-family: var(--font);
    color: var(--text);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.375rem;
    margin: 0 0 1.25rem;
}

.wp-section h3 {
    font-size: 0.9375rem;
    font-weight: 700;
    font-family: var(--font);
    color: var(--text);
    margin: 1.5rem 0 0.625rem;
}

.wp-section p {
    margin-bottom: 0.875rem;
    font-size: 0.9375rem;
}

.wp-section p:last-child {
    margin-bottom: 0;
}

.wp-section code {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    background: var(--input-readonly-bg);
    padding: 0.1em 0.35em;
    border-radius: 3px;
}

/* Tables */
.wp-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font);
    font-size: 0.875rem;
    margin: 1rem 0;
}

.wp-table thead tr {
    background: var(--accent);
    color: #fff;
}

.wp-table thead th {
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8125rem;
    letter-spacing: 0.03em;
}

.wp-table tbody tr {
    border-bottom: 1px solid var(--border-light);
}

.wp-table tbody tr:nth-child(even) {
    background: var(--card-bg);
}

.wp-table td {
    padding: 0.5rem 0.75rem;
    vertical-align: top;
    color: var(--text-muted);
}

.wp-table td:first-child {
    color: var(--text);
    font-weight: 500;
    white-space: nowrap;
}

/* Lists */
.wp-list {
    margin: 0.5rem 0 0.875rem 1.25rem;
    padding: 0;
}

.wp-list li {
    margin-bottom: 0.375rem;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.wp-list li strong {
    color: var(--text);
}

/* Footer note */
.wp-footer-note {
    font-family: var(--font);
    font-size: 0.8125rem;
    color: var(--text-subtle);
    font-style: italic;
    border-top: 1px solid var(--border-light);
    padding-top: 1rem;
    margin-top: 1.5rem;
}

/* Tweed overrides — feels even more serious */
[data-theme^="tweed"] .wp-cover {
    border-radius: 0;
    border-top-width: 4px;
}

[data-theme^="tweed"] .wp-section h2 {
    font-family: var(--font-display);
    font-weight: 800;
    letter-spacing: -0.03em;
}

[data-theme^="tweed"] .wp-toc {
    border-radius: 0;
}

/* ── Print styles ── */
@media print {
    /* Hide navigation chrome */
    header[role="banner"],
    footer[role="contentinfo"],
    .breadcrumb,
    .skip-nav {
        display: none !important;
    }

    .container {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    body {
        background: #fff !important;
        color: #000 !important;
        font-size: 11pt;
    }

    .whitepaper {
        max-width: 100%;
        color: #000;
    }

    /* Cover page gets its own printed page */
    .wp-cover {
        page-break-after: always;
        border: 1pt solid #999;
        border-top: 4pt solid #000;
        background: #fff !important;
        padding: 3cm 2cm;
    }

    .wp-toc {
        page-break-after: always;
        background: #fff !important;
        border: 1pt solid #ccc;
    }

    /* Each section starts on a new page */
    .wp-section {
        page-break-before: always;
        border-bottom: none;
    }

    .wp-section h2 {
        border-bottom: 1.5pt solid #000;
        color: #000;
    }

    .wp-table thead tr {
        background: #222 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .wp-table tbody tr:nth-child(even) {
        background: #f5f5f5 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    /* Page numbers via CSS counter */
    @page {
        margin: 2cm 2.5cm;
        @bottom-center {
            content: "fetchOnce Security Whitepaper — Page " counter(page) " of " counter(pages);
            font-size: 8pt;
            color: #666;
        }
        @top-right {
            content: "CONFIDENTIAL: PUBLIC";
            font-size: 8pt;
            color: #666;
        }
    }
}

/* ═══════════════════════════════════════════════════════════
   REDUCED MOTION
   ═══════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
}

/* ═══════════════════════════════════════════════════════════
   PRINT
   ═══════════════════════════════════════════════════════════ */

@media print {
    body {
        background: #fff;
        color: #000;
        font-size: 12pt;
    }

    header[role="banner"],
    footer[role="contentinfo"],
    .btn-copy,
    .btn-secondary,
    .btn-primary,
    .export-buttons,
    .success,
    .theme-toggle,
    .skip-nav {
        display: none !important;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .preview-row {
        border-bottom: 1px solid #ccc;
    }

    .preview-value.redacted {
        background: #eee;
        color: #666;
    }

    a::after {
        content: none !important;
    }
}

/* ═══════════════════════════════════════════════════════════
   MOBILE
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 480px) {
    .container {
        padding: 1.5rem 1rem 1.5rem;
    }

    header[role="banner"] {
        padding-top: 3rem; /* room for absolute header-controls */
    }

    .pair-row {
        flex-wrap: wrap;
    }

    .pair-row input {
        min-width: 0;
    }

    .preview-key {
        min-width: 80px;
    }

    .error-code {
        font-size: 3.5rem;
    }

    .revealed-actions {
        flex-direction: column;
    }

    .revealed-actions .btn-secondary {
        width: 100%;
    }
}

/* ═══════════════════════════════════════════════════════════
   LARGE TEXT / BIG PRINT SUPPORT
   (Users who set browser font-size > 16px get proportional scaling.
    All sizing uses rem; this media query provides extra breathing room
    for users who prefer very large text.)
   ═══════════════════════════════════════════════════════════ */

@media (min-resolution: 1dppx) and (prefers-reduced-data: no-preference) {
    /* intentional: no changes; rem scaling handles large print automatically */
}

/* Extra comfortable layout at 200% text zoom */
@media (min-width: 900px) {
    .container {
        max-width: 720px;
    }
}