/* ══════════════════════════════════════════════════════════════
   SPARKS FAULT FINDER — STYLES
   Light, warm, professional. Mobile-first, max-width card layout.
   Colour palette from logo:
     #b51a22  primary red
     #9a1f25  deep red (accents)
     #f18e29  orange (progress / highlights)
     #f5b045  light orange (hovers)
   ══════════════════════════════════════════════════════════════ */

#sparks-ff,
#sparks-ff *,
#sparks-ff *::before,
#sparks-ff *::after {
    box-sizing: border-box;
}

#sparks-ff {
    --sff-red:        #b51a22;
    --sff-red-deep:   #9a1f25;
    --sff-red-soft:   #fceef0;
    --sff-orange:     #f18e29;
    --sff-orange-lt:  #f5b045;
    --sff-orange-soft:#fff4e6;
    --sff-ink:        #1c1c1e;
    --sff-ink-soft:   #4a4a4d;
    --sff-muted:      #8a8a8e;
    --sff-bg:         #faf9f7;
    --sff-card:       #ffffff;
    --sff-border:     #e6e4e0;
    --sff-border-dk:  #cfcdc8;

    max-width: 720px;
    margin: 2rem auto;
    background: var(--sff-bg);
    border: 1px solid var(--sff-border);
    border-radius: 14px;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    color: var(--sff-ink);
    line-height: 1.5;
    box-shadow: 0 6px 24px rgba(0,0,0,0.04);
}

/* ── TOP BAR ─────────────────────────────────────────────────── */
#sparks-ff .sff-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #ffffff;
    border-bottom: 1px solid var(--sff-border);
    flex-wrap: wrap;
}

#sparks-ff .sff-topbar-controls {
    flex: 0 0 auto;
    display: flex;
    gap: 6px;
    align-items: center;
}

#sparks-ff .sff-nav-btn {
    appearance: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid var(--sff-border-dk);
    background: #ffffff;
    color: var(--sff-ink-soft);
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    line-height: 1;
    transition: background 0.15s, border-color 0.15s, color 0.15s, opacity 0.15s;
}

#sparks-ff .sff-nav-btn:hover:not(:disabled) {
    background: var(--sff-red-soft);
    border-color: var(--sff-red);
    color: var(--sff-red-deep);
}

#sparks-ff .sff-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#sparks-ff .sff-nav-icon {
    font-size: 15px;
    line-height: 1;
    display: inline-block;
}

#sparks-ff .sff-progress-wrap {
    flex: 1 1 120px;
    min-width: 80px;
}

#sparks-ff .sff-progress-track {
    height: 6px;
    background: var(--sff-border);
    border-radius: 999px;
    overflow: hidden;
}

#sparks-ff .sff-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--sff-orange), var(--sff-orange-lt));
    border-radius: 999px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#sparks-ff .sff-skip-btn {
    flex: 0 0 auto;
    appearance: none;
    border: 1px solid var(--sff-border-dk);
    background: #ffffff;
    color: var(--sff-ink-soft);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s;
}

#sparks-ff .sff-skip-btn:hover {
    background: var(--sff-orange-soft);
    border-color: var(--sff-orange);
    color: var(--sff-red-deep);
}

/* ── STAGE ───────────────────────────────────────────────────── */
#sparks-ff .sff-stage {
    padding: 28px 24px 32px;
    animation: sff-fade 0.3s ease-out;
}

@keyframes sff-fade {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: none; }
}

/* ── QUESTION SCREENS ────────────────────────────────────────── */
#sparks-ff .sff-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--sff-orange);
    margin-bottom: 8px;
}

#sparks-ff h2.sff-title {
    margin: 0 0 8px;
    font-size: 22px;
    line-height: 1.3;
    color: var(--sff-ink);
    font-weight: 700;
}

#sparks-ff .sff-subtitle {
    margin: 0 0 20px;
    color: var(--sff-ink-soft);
    font-size: 15px;
}

#sparks-ff .sff-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#sparks-ff .sff-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: var(--sff-card);
    border: 1.5px solid var(--sff-border);
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    width: 100%;
    font: inherit;
    color: var(--sff-ink);
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

#sparks-ff .sff-option:hover {
    border-color: var(--sff-orange);
    background: var(--sff-orange-soft);
}

#sparks-ff .sff-option:active {
    transform: scale(0.99);
}

#sparks-ff .sff-option--urgent {
    border-color: var(--sff-red-deep);
    background: var(--sff-red-soft);
}

#sparks-ff .sff-option--urgent:hover {
    border-color: var(--sff-red);
    background: #f9dee1;
}

#sparks-ff .sff-option-icon {
    flex: 0 0 auto;
    font-size: 22px;
    line-height: 1;
    width: 28px;
    text-align: center;
    margin-top: 1px;
}

#sparks-ff .sff-option-body {
    flex: 1 1 auto;
    min-width: 0;
}

#sparks-ff .sff-option-label {
    display: block;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.35;
    color: var(--sff-ink);
}

#sparks-ff .sff-option-desc {
    display: block;
    margin-top: 3px;
    color: var(--sff-ink-soft);
    font-size: 13px;
    line-height: 1.4;
}

#sparks-ff .sff-option--urgent .sff-option-label {
    color: var(--sff-red-deep);
}

/* ── BACK BUTTON ─────────────────────────────────────────────── */
#sparks-ff .sff-back {
    margin-top: 20px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    appearance: none;
    background: transparent;
    border: none;
    color: var(--sff-muted);
    font: inherit;
    font-size: 13px;
    cursor: pointer;
    padding: 6px 0;
}

#sparks-ff .sff-back:hover {
    color: var(--sff-red);
}

/* ── EMERGENCY SCREEN ────────────────────────────────────────── */
#sparks-ff .sff-emergency {
    background: var(--sff-red-deep);
    color: #ffffff;
    margin: -28px -24px -32px;
    padding: 32px 24px 40px;
}

#sparks-ff .sff-emergency .sff-category {
    color: #ffd6b3;
}

#sparks-ff .sff-emergency h2.sff-title,
#sparks-ff .sff-emergency p {
    color: #ffffff;
}

#sparks-ff .sff-emergency .sff-body {
    font-size: 16px;
    line-height: 1.55;
    margin-bottom: 24px;
}

#sparks-ff .sff-emergency .sff-body strong {
    color: #ffd6b3;
}

#sparks-ff .sff-call-big {
    display: block;
    width: 100%;
    padding: 20px 20px;
    background: #ffffff;
    color: var(--sff-red-deep);
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 20px;
    margin: 10px 0;
    transition: transform 0.1s, box-shadow 0.2s;
}

#sparks-ff .sff-call-big:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

#sparks-ff .sff-call-big small {
    display: block;
    margin-top: 2px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0.75;
    letter-spacing: 0.03em;
}

#sparks-ff .sff-emergency .sff-leave-details {
    display: block;
    text-align: center;
    margin-top: 12px;
    color: #fff;
    opacity: 0.85;
    font-size: 14px;
    text-decoration: underline;
    background: none;
    border: none;
    width: 100%;
    cursor: pointer;
    padding: 10px;
    font: inherit;
}

/* ── HANDOFF SCREENS ─────────────────────────────────────────── */
#sparks-ff .sff-handoff--urgent .sff-category {
    color: var(--sff-red);
}

#sparks-ff .sff-body {
    font-size: 15px;
    line-height: 1.55;
    color: var(--sff-ink-soft);
    margin: 0 0 20px;
}

#sparks-ff .sff-report {
    background: #ffffff;
    border: 1px solid var(--sff-border);
    border-radius: 10px;
    padding: 18px 18px 14px;
    margin: 0 0 20px;
}

#sparks-ff .sff-report h3 {
    margin: 0 0 12px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--sff-orange);
}

#sparks-ff .sff-report ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

#sparks-ff .sff-report li {
    padding: 7px 0;
    border-bottom: 1px dashed var(--sff-border);
    font-size: 14px;
    line-height: 1.45;
}

#sparks-ff .sff-report li:last-child {
    border-bottom: none;
}

#sparks-ff .sff-report .sff-rq {
    color: var(--sff-muted);
    display: block;
    font-size: 12px;
    margin-bottom: 1px;
}

#sparks-ff .sff-report .sff-ra {
    color: var(--sff-ink);
    font-weight: 500;
}

#sparks-ff .sff-tests {
    background: var(--sff-orange-soft);
    border-left: 3px solid var(--sff-orange);
    padding: 14px 16px;
    border-radius: 0 8px 8px 0;
    margin: 0 0 24px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--sff-ink);
}

#sparks-ff .sff-tests strong {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--sff-red-deep);
    margin-bottom: 6px;
}

/* ── CTA ROW ─────────────────────────────────────────────────── */
#sparks-ff .sff-cta-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}

#sparks-ff .sff-btn {
    appearance: none;
    border: none;
    padding: 14px 18px;
    border-radius: 10px;
    font: inherit;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    display: block;
    transition: transform 0.1s, background 0.15s, box-shadow 0.2s;
}

#sparks-ff .sff-btn--primary {
    background: var(--sff-red);
    color: #ffffff;
}

#sparks-ff .sff-btn--primary:hover {
    background: var(--sff-red-deep);
    box-shadow: 0 4px 14px rgba(181,26,34,0.25);
}

#sparks-ff .sff-btn--secondary {
    background: #ffffff;
    color: var(--sff-red);
    border: 1.5px solid var(--sff-red);
}

#sparks-ff .sff-btn--secondary:hover {
    background: var(--sff-red-soft);
}

#sparks-ff .sff-btn--ghost {
    background: transparent;
    color: var(--sff-ink-soft);
    border: 1.5px solid var(--sff-border-dk);
}

#sparks-ff .sff-btn--ghost:hover {
    border-color: var(--sff-ink-soft);
    color: var(--sff-ink);
}

#sparks-ff .sff-btn:active {
    transform: translateY(1px);
}

#sparks-ff .sff-btn-sub {
    display: block;
    margin-top: 3px;
    font-size: 12px;
    font-weight: 500;
    opacity: 0.75;
    letter-spacing: 0.04em;
}

/* ── SELF-HELP SCREEN ────────────────────────────────────────── */
#sparks-ff .sff-selfhelp .sff-category {
    color: #2a9d47;
}

#sparks-ff .sff-selfhelp .sff-body {
    background: #f0faf0;
    border-left: 3px solid #2a9d47;
    padding: 16px 18px;
    border-radius: 0 8px 8px 0;
    color: var(--sff-ink);
    font-size: 15px;
}

#sparks-ff .sff-selfhelp .sff-body strong {
    color: var(--sff-red);
}

/* ── CALLOUT FORM ────────────────────────────────────────────── */
#sparks-ff .sff-form .sff-body {
    margin-bottom: 20px;
}

#sparks-ff .sff-form fieldset {
    border: none;
    margin: 0 0 18px;
    padding: 0;
}

#sparks-ff .sff-form legend {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--sff-orange);
    margin-bottom: 10px;
    padding: 0;
}

#sparks-ff .sff-grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 480px) {
    #sparks-ff .sff-grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

#sparks-ff .sff-field {
    display: block;
}

#sparks-ff .sff-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--sff-ink);
    margin-bottom: 4px;
}

#sparks-ff .sff-field label .sff-opt {
    color: var(--sff-muted);
    font-weight: 400;
}

#sparks-ff .sff-field input,
#sparks-ff .sff-field textarea {
    display: block;
    width: 100%;
    padding: 11px 12px;
    font: inherit;
    font-size: 15px;
    border: 1.5px solid var(--sff-border);
    border-radius: 8px;
    background: #ffffff;
    color: var(--sff-ink);
    transition: border-color 0.15s, box-shadow 0.15s;
}

#sparks-ff .sff-field input:focus,
#sparks-ff .sff-field textarea:focus {
    outline: none;
    border-color: var(--sff-red);
    box-shadow: 0 0 0 3px rgba(181,26,34,0.12);
}

#sparks-ff .sff-field textarea {
    min-height: 90px;
    resize: vertical;
}

/* Honeypot — hidden from humans, visible to bots */
#sparks-ff .sff-honeypot {
    position: absolute !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    opacity: 0 !important;
}

#sparks-ff .sff-error {
    color: var(--sff-red-deep);
    background: var(--sff-red-soft);
    border: 1px solid var(--sff-red);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 12px;
}

/* ── SUCCESS SCREEN ──────────────────────────────────────────── */
#sparks-ff .sff-success {
    text-align: center;
    padding: 10px 0;
}

#sparks-ff .sff-success-tick {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #2a9d47;
    color: #ffffff;
    font-size: 36px;
    margin-bottom: 16px;
}

#sparks-ff .sff-success h2 {
    font-size: 24px;
    margin: 0 0 10px;
    color: var(--sff-ink);
}

#sparks-ff .sff-success p {
    font-size: 15px;
    color: var(--sff-ink-soft);
    margin: 0 0 16px;
}

#sparks-ff .sff-ref-box {
    display: inline-block;
    background: var(--sff-orange-soft);
    border: 1px dashed var(--sff-orange);
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 700;
    color: var(--sff-red-deep);
    letter-spacing: 0.05em;
    font-size: 16px;
    margin: 6px 0 24px;
}

#sparks-ff .sff-success .sff-call-big {
    background: var(--sff-red);
    color: #ffffff;
    max-width: 360px;
    margin: 0 auto 14px;
}

#sparks-ff .sff-success .sff-call-big:hover {
    background: var(--sff-red-deep);
}

/* ── MOBILE TUNING ───────────────────────────────────────────── */
@media (max-width: 480px) {
    #sparks-ff .sff-progress-wrap {
        order: 3;
        flex: 1 1 100%;
    }
    #sparks-ff .sff-topbar-controls {
        order: 1;
    }
    #sparks-ff .sff-skip-btn {
        order: 2;
        margin-left: auto;
    }
}

@media (max-width: 420px) {
    #sparks-ff {
        margin: 0.75rem;
        border-radius: 10px;
    }
    #sparks-ff .sff-stage {
        padding: 22px 16px 24px;
    }
    #sparks-ff h2.sff-title {
        font-size: 19px;
    }
    #sparks-ff .sff-topbar {
        padding: 10px 12px;
        gap: 8px;
    }
    #sparks-ff .sff-nav-btn {
        padding: 6px 8px;
        font-size: 12px;
    }
    #sparks-ff .sff-nav-label {
        display: none;
    }
    #sparks-ff .sff-nav-icon {
        font-size: 16px;
    }
    #sparks-ff .sff-skip-btn {
        font-size: 11px;
        padding: 5px 9px;
    }
}