:root {
    --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-code: 'JetBrains Mono', Consolas, Monaco, monospace;
    --color-pseb-dark: #0f172a;
    --color-pseb-blue: #1e3a8a;
    --color-pseb-gold: #d97706;
    --color-surface: #ffffff;
    --color-bg: #f8fafc;
    --color-border: #e2e8f0;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: #1e293b;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.pseb-navbar {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border-bottom: 2px solid #f59e0b;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1050;
}

.pseb-logo-badge {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #ffffff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.brand-title {
    color: #ffffff;
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 0.04em;
}

.brand-subtitle {
    color: #94a3b8;
    font-size: 0.78rem;
    font-weight: 500;
}

.nav-btn {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.45rem 0.9rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-btn.active {
    color: #f59e0b;
    background-color: rgba(245, 158, 11, 0.15);
}

.banner-card {
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    border: 1px solid var(--color-border);
    border-radius: 16px;
}

.icon-circle {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-pill {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 0.4rem 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.pill-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: #64748b;
}

.pill-value {
    font-size: 0.8rem;
    font-weight: 600;
    color: #0f172a;
}

.config-card, .result-card {
    border-radius: 16px;
    background: #ffffff;
}

.qr-image-wrapper {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.qr-image-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08) !important;
}

.font-monospace {
    font-family: var(--font-code) !important;
}

.accordion-button:not(.collapsed) {
    background-color: #eff6ff;
    color: #1e40af;
}

.claim-presets-box {
    border-color: #cbd5e1 !important;
}

.pseb-footer {
    background-color: #ffffff;
    font-size: 0.85rem;
}