/* ========================================
   QR PAGE - MAIN STYLES
   ======================================== */

/* ===== Tool Navigation ===== */
.tool-nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    position: sticky;
    top: 60px;
    z-index: 40;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.85);
}

.tool-nav .container {
    display: flex;
    align-items: center;
    gap: 20px;
}

.tool-nav-back {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.tool-nav-back:hover {
    color: var(--primary);
}

.tool-nav-title {
    font-weight: 600;
    color: var(--text);
    font-size: 0.9rem;
}

/* ===== QR Page ===== */
.qr-page {
    max-width: 820px;
    margin: 0 auto;
    padding: 24px 0 60px;
}

/* ===== Header ===== */
.qr-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 28px;
}

.qr-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: linear-gradient(135deg, #e6f0ff, #b3d4ff);
    color: #1a73e8;
}

.qr-icon svg {
    width: 32px;
    height: 40px;
}

.qr-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.qr-header p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-top: 2px;
}

/* ===== QR Card ===== */
.qr-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 36px;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

/* ===== QR Code ===== */
.qr-code {
    text-align: center;
}

.qr-code img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 12px;
    background: white;
    padding: 12px;
    border: 1px solid var(--border);
    display: block;
    margin: 0 auto;
}

.qr-label {
    margin-top: 14px;
}

.qr-label strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
}

.qr-label span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* ===== Instructions ===== */
.qr-instructions h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 14px;
}

.qr-instructions ol {
    padding-left: 20px;
    margin: 0 0 16px 0;
}

.qr-instructions ol li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 4px 0;
}

.qr-instructions ol li strong {
    color: var(--text);
}

/* ===== Notes ===== */
.qr-note {
    margin-top: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
}

.qr-note svg {
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--primary);
}

.qr-note span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.qr-note.warning {
    background: #fef3c7;
    border-left-color: #f59e0b;
}

.qr-note.warning svg {
    color: #f59e0b;
}

.qr-note.warning span {
    color: #78350f;
}

/* ===== Back Link ===== */
.qr-back {
    margin-top: 20px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary);
}

.back-link svg {
    transition: transform 0.2s;
}

.back-link:hover svg {
    transform: translateX(-4px);
}