/* QR Code Generator - tool-specific styles. Accent #0f766e (teal-700). */

:root {
    --qr-accent: #0f766e;
    --qr-accent-dark: #115e59;
    --qr-accent-tint: #f0fdfa;
    --qr-border: #e2e8f0;
}

.page-hero h1 .qr-hero-mark {
    width: 1em;
    height: 1em;
    vertical-align: -0.12em;
    margin-right: 0.4rem;
    color: var(--qr-accent);
}

/* ---- Two-column app layout ---- */
.qr-app {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 20px;
    align-items: start;
}

/* ---- Content-type tabs ---- */
.qr-types {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.qr-type {
    font: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 7px 14px;
    border: 1px solid var(--qr-border);
    border-radius: 999px;
    background: #fff;
    color: #475569;
    cursor: pointer;
    transition: background 0.12s, color 0.12s, border-color 0.12s;
}
.qr-type:hover { border-color: var(--qr-accent); color: var(--qr-accent-dark); }
.qr-type.is-active {
    background: var(--qr-accent);
    border-color: var(--qr-accent);
    color: #fff;
}

/* ---- Dynamic fields ---- */
.qr-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.qr-field { min-width: 0; display: flex; flex-direction: column; }
.qr-field--wide { grid-column: 1 / -1; }
.qr-field--check { justify-content: flex-end; }
.qr-field-label { font-weight: 600; font-size: 0.86rem; color: #334155; margin-bottom: 5px; }
.qr-optional { color: #94a3b8; font-weight: 400; font-size: 0.82em; }

/* flex: 0 0 auto neutralises the shared .text-input { flex: 1 1 320px },
 * whose 320px flex-basis would otherwise become a 320px HEIGHT inside this
 * column-flex field and make single-line inputs look like big textareas. */
.qr-input { width: 100%; box-sizing: border-box; flex: 0 0 auto; }
.qr-textarea { resize: vertical; line-height: 1.5; min-height: 74px; }

.qr-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #334155;
    cursor: pointer;
    padding: 8px 0;
}
.qr-check input { width: 16px; height: 16px; accent-color: var(--qr-accent); }

/* ---- Selects + numeric inputs (shared shape) ---- */
.qr-select, .qr-num {
    width: 100%;
    box-sizing: border-box;
    font: inherit;
    font-size: 0.9rem;
    padding: 9px 12px;
    border: 1px solid #d7dbe0;
    border-radius: 8px;
    background-color: #fff;
    color: #1f2937;
}
.qr-select { padding-right: 28px; cursor: pointer; }
.qr-select:focus, .qr-num:focus { outline: 2px solid var(--qr-accent); border-color: var(--qr-accent); }

/* ---- Customize panel ---- */
.qr-customize {
    margin-top: 18px;
    border-top: 1px solid var(--qr-border);
    padding-top: 8px;
}
.qr-customize-summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--qr-accent-dark);
    padding: 8px 0;
    list-style: none;
}
.qr-customize-summary::-webkit-details-marker { display: none; }
.qr-customize-summary::before { content: '\25B8'; margin-right: 8px; font-size: 0.8em; transition: transform 0.15s; display: inline-block; }
.qr-customize[open] .qr-customize-summary::before { transform: rotate(90deg); }
.qr-customize-body { padding: 6px 0 4px; }

.qr-opt-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.qr-opt { display: flex; flex-direction: column; gap: 6px; }
.qr-opt-label { font-weight: 600; font-size: 0.86rem; color: #334155; }
.qr-opt-hint { color: #94a3b8; font-weight: 400; font-size: 0.85em; }
.qr-color {
    width: 100%;
    height: 40px;
    padding: 3px;
    border: 1px solid #d7dbe0;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.qr-opt--ecc { margin-top: 16px; }
.qr-ecc { display: flex; gap: 8px; margin-top: 2px; }
.qr-ecc-btn {
    flex: 1 1 0;
    font: inherit;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 8px 0;
    border: 1px solid var(--qr-border);
    border-radius: 8px;
    background: #fff;
    color: #475569;
    cursor: pointer;
}
.qr-ecc-btn:hover { border-color: var(--qr-accent); }
.qr-ecc-btn.is-active { background: var(--qr-accent); border-color: var(--qr-accent); color: #fff; }

.qr-opt--logo { margin-top: 16px; }
.qr-logo-row { display: flex; align-items: center; gap: 10px; margin-top: 4px; flex-wrap: wrap; }
.qr-logo-btn { cursor: pointer; }
.qr-logo-name { font-size: 0.84rem; color: #475569; word-break: break-all; }
.qr-logo-remove {
    border: 0; background: transparent; color: #dc2626;
    font-size: 0.84rem; font-weight: 600; cursor: pointer; padding: 2px 4px;
}
.qr-logo-note {
    margin: 8px 0 0;
    font-size: 0.82rem;
    color: var(--qr-accent-dark);
    background: var(--qr-accent-tint);
    border-radius: 8px;
    padding: 8px 12px;
}

/* ---- Preview ---- */
.qr-preview-card {
    position: sticky;
    top: 16px;
    background: #fff;
    border: 1px solid var(--qr-border);
    border-radius: 14px;
    padding: 18px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}
.qr-preview-wrap {
    position: relative;
    display: inline-block;
    max-width: 100%;
    border-radius: 10px;
    overflow: hidden;
}
.qr-canvas {
    display: block;
    width: 288px;
    max-width: 100%;
    height: auto;
    border: 1px solid var(--qr-border);
    border-radius: 8px;
    background:
        linear-gradient(45deg, #f1f5f9 25%, transparent 25%, transparent 75%, #f1f5f9 75%),
        linear-gradient(45deg, #f1f5f9 25%, #fff 25%, #fff 75%, #f1f5f9 75%);
    background-size: 16px 16px;
    background-position: 0 0, 8px 8px;
}
/* display:block above beats the UA [hidden] rule; without this override a
   hidden canvas keeps showing the STALE previous code above an error. */
.qr-canvas[hidden] { display: none; }
.qr-preview-wrap.is-placeholder .qr-canvas { opacity: 0.35; }
.qr-placeholder-note {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    padding: 8px 14px;
    max-width: 80%;
    font-size: 0.86rem;
    font-weight: 600;
    color: #475569;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--qr-border);
    border-radius: 8px;
}
.qr-error {
    margin: 12px 0 0;
    font-size: 0.86rem;
    color: #b91c1c;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 10px 12px;
    text-align: left;
}
.qr-meta {
    margin: 12px 0 0;
    font-size: 0.82rem;
    color: #64748b;
    font-variant-numeric: tabular-nums;
}
.qr-downloads {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
}
.qr-downloads .primary-btn,
.qr-downloads .ghost-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}
.qr-downloads button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Responsive ---- */
@media (max-width: 860px) {
    .qr-app { grid-template-columns: 1fr; }
    .qr-preview-card { position: static; order: -1; }
    .qr-canvas { width: 240px; }
}
@media (max-width: 480px) {
    .qr-fields { grid-template-columns: 1fr; }
    .qr-opt-grid { grid-template-columns: 1fr; }
    .qr-types { gap: 6px; }
    .qr-type { padding: 6px 11px; font-size: 0.84rem; }
}