/* ===== Tech Audit Quiz — Frontend (v2.3) ===== */
.taq-app {
    /* Default theme matches the reference Tech Audit page (dark navy + green) */
    --taq-primary:        #1BC576;          /* green accent */
    --taq-primary-hover:  #159b5e;
    --taq-accent:         #3edd8a;
    --taq-bg:             #0b1530;          /* card bg (dark navy) */
    --taq-surface:        #131e3f;          /* option bg */
    --taq-surface-hover:  #1a2752;
    --taq-border:         rgba(255,255,255,0.10);
    --taq-border-hover:   rgba(27,197,118,0.45);
    --taq-text:           #ffffff;
    --taq-text-muted:     #94a3b8;
    --taq-success:        #1BC576;
    --taq-error:          #ef4444;
    --taq-radius:         16px;
    --taq-radius-sm:      12px;
    --taq-shadow:         none;
    --taq-font:           -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    --taq-font-size:      16px;
    --taq-question-size:  30px;
    --taq-button-radius:  12px;
    --taq-icon-size:      40px;
    --taq-icon-bg:        rgba(255,255,255,0.06);
    --taq-icon-color:     #ffffff;

    font-family: var(--taq-font);
    font-size: var(--taq-font-size);
    color: var(--taq-text);
    line-height: 1.55;
    width: 100%;
    box-sizing: border-box;
}
.taq-app *, .taq-app *::before, .taq-app *::after { box-sizing: border-box; }

/* Loader */
.taq-loader { display:flex; align-items:center; justify-content:center; padding: 60px 20px; }
.taq-spinner {
    width: 40px; height: 40px; border-radius: 50%;
    border: 3px solid var(--taq-border);
    border-top-color: var(--taq-primary);
    animation: taq-spin 0.8s linear infinite;
}
@keyframes taq-spin { to { transform: rotate(360deg); } }

/* Card */
.taq-card {
    background: transparent; /* keep backdrop transparent so it blends with section bg */
    border: 0;
    border-radius: var(--taq-radius);
    box-shadow: var(--taq-shadow);
    padding: 0;
    max-width: 720px;
    margin: 0 auto;
    animation: taq-fade-in 0.4s ease;
}
@keyframes taq-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Progress */
.taq-progress-wrap { margin-bottom: 28px; }
.taq-progress-meta {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 14px; margin-bottom: 12px;
    font-weight: 500;
}
.taq-progress-label {
    color: var(--taq-primary);
    font-weight: 600;
}
.taq-progress-count {
    color: var(--taq-text-muted);
    font-variant-numeric: tabular-nums;
}
.taq-progress-bar {
    height: 4px; width: 100%;
    background: rgba(255,255,255,0.10);
    border-radius: 999px; overflow: hidden;
}
.taq-progress-fill {
    height: 100%;
    background: var(--taq-primary);
    border-radius: 999px;
    transition: width 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    width: 0%;
}

/* Question */
.taq-question {
    font-size: var(--taq-question-size);
    font-weight: 700;
    line-height: 1.25;
    margin: 0 0 24px;
    color: var(--taq-text);
    letter-spacing: -0.01em;
}

/* Options */
.taq-options { display: grid; gap: 12px; margin-bottom: 18px; }
.taq-option {
    display: flex; align-items: center; gap: 16px;
    padding: 18px 22px;
    background: var(--taq-surface);
    border: 1px solid var(--taq-border);
    border-radius: var(--taq-radius-sm);
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    width: 100%;
    color: var(--taq-text);
    font-family: inherit;
}
.taq-option:hover {
    background: var(--taq-surface-hover);
    border-color: var(--taq-border-hover);
}
.taq-option.selected {
    background: var(--taq-surface-hover);
    border-color: var(--taq-primary);
}
.taq-option:focus-visible {
    outline: 2px solid var(--taq-primary);
    outline-offset: 2px;
}

/* Icon */
.taq-option-icon {
    width: var(--taq-icon-size);
    height: var(--taq-icon-size);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--taq-icon-bg);
    color: var(--taq-icon-color);
    border-radius: 10px;
    font-size: 20px;
    line-height: 1;
}
.taq-option-icon svg {
    width: 22px; height: 22px;
    display: block;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.taq-option-icon img { width: 22px; height: 22px; display:block; }
.taq-option-label { flex: 1 1 auto; }

/* Bottom hint (instead of buttons) */
.taq-hint {
    font-size: 13px;
    color: var(--taq-text-muted);
    text-align: left;
    font-style: italic;
    margin-top: 14px;
    min-height: 18px;
}

/* Back link */
.taq-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 0;
    color: var(--taq-text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    margin-bottom: 16px;
    font-family: inherit;
    transition: color 0.15s ease;
}
.taq-back:hover { color: var(--taq-text); }
.taq-back:disabled { opacity: 0.4; cursor: not-allowed; }

/* Form (final step) */
.taq-form-intro { margin-bottom: 24px; }
.taq-form-intro h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--taq-text);
}
.taq-form-intro p { color: var(--taq-text-muted); margin: 0; font-size: 15px; }

.taq-form { display: grid; gap: 14px; margin-bottom: 18px; }
.taq-field { display: flex; flex-direction: column; gap: 6px; }
.taq-field-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.taq-field-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--taq-text-muted);
    pointer-events: none;
    width: 18px; height: 18px;
}
.taq-field-icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.taq-field input {
    padding: 16px 18px 16px 46px;
    border: 1px solid var(--taq-border);
    border-radius: var(--taq-radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--taq-text);
    background: var(--taq-surface);
    transition: border-color 0.18s ease, background 0.18s ease;
    width: 100%;
}
.taq-field input::placeholder { color: var(--taq-text-muted); }
.taq-field input:focus {
    outline: none;
    border-color: var(--taq-primary);
    background: var(--taq-surface-hover);
}
.taq-field-error input { border-color: var(--taq-error); }
.taq-field-msg { font-size: 12px; color: var(--taq-error); min-height: 14px; padding-left: 4px; }

/* Submit button */
.taq-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 18px 28px;
    border: 0;
    border-radius: var(--taq-radius-sm);
    background: var(--taq-primary);
    color: #042713;
    font-size: 16px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.18s ease, transform 0.18s ease;
    margin-top: 4px;
}
.taq-submit:hover:not(:disabled) {
    background: var(--taq-primary-hover);
}
.taq-submit:disabled { opacity: 0.7; cursor: progress; }
.taq-submit svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.taq-submit-note {
    text-align: center;
    color: var(--taq-text-muted);
    font-size: 13px;
    margin-top: 14px;
}

/* Errors */
.taq-error-banner {
    background: rgba(239,68,68,0.1);
    color: #fecaca;
    border: 1px solid rgba(239,68,68,0.4);
    padding: 12px 16px; border-radius: var(--taq-radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
}

/* ====== Result screen ====== */
.taq-result { text-align: center; }
.taq-result-score-ring {
    width: 200px; height: 200px;
    margin: 0 auto 22px;
    position: relative;
}
.taq-result-score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.taq-result-score-ring circle { fill: none; stroke-width: 12; }
.taq-result-score-ring .taq-ring-bg { stroke: rgba(255,255,255,0.08); }
.taq-result-score-ring .taq-ring-fill {
    stroke: url(#taq-grad);
    stroke-linecap: round;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.taq-result-score-text {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.taq-result-score-num { font-size: 56px; font-weight: 800; color: var(--taq-text); line-height: 1; letter-spacing: -0.02em; }
.taq-result-score-label { font-size: 11px; color: var(--taq-text-muted); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.15em; }

.taq-result-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}
.taq-result-badge.beginner     { background: rgba(245,158,11,0.15); color: #fbbf24; border:1px solid rgba(251,191,36,0.4); }
.taq-result-badge.intermediate { background: rgba(59,130,246,0.15); color: #93c5fd; border:1px solid rgba(147,197,253,0.4); }
.taq-result-badge.advanced     { background: rgba(27,197,118,0.15);  color: #86efac; border:1px solid rgba(134,239,172,0.4); }

.taq-result h2 {
    font-size: 28px;
    margin: 0 0 12px;
    color: var(--taq-text);
    letter-spacing: -0.01em;
}
.taq-result-text { color: var(--taq-text-muted); font-size: 16px; margin-bottom: 28px; }

.taq-result-recs {
    text-align: left;
    background: var(--taq-surface);
    border: 1px solid var(--taq-border);
    border-radius: var(--taq-radius-sm);
    padding: 22px 24px;
    margin-bottom: 24px;
}
.taq-result-recs h3 {
    margin: 0 0 14px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--taq-primary);
}
.taq-result-recs ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.taq-result-recs li {
    display: flex; gap: 12px; align-items: flex-start;
    font-size: 15px;
    color: var(--taq-text);
    line-height: 1.5;
}
.taq-result-recs li::before {
    content: '✓';
    color: var(--taq-primary);
    font-weight: 700;
    flex-shrink: 0;
}

.taq-restart {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 0;
    color: var(--taq-text-muted);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 14px;
    border-radius: 8px;
    font-family: inherit;
}
.taq-restart:hover { color: var(--taq-text); background: rgba(255,255,255,0.05)!important; }

/* Responsive */
@media (max-width: 640px) {
    .taq-app { --taq-question-size: 24px; --taq-icon-size: 36px; }
    .taq-option { padding: 14px 16px; font-size: 15px; gap: 12px; }
    .taq-result-score-ring { width: 160px; height: 160px; }
    .taq-result-score-num { font-size: 44px; }
}
@media (max-width: 380px) {
    .taq-question { font-size: 22px; }
}