:root {
    --bg-gradient: radial-gradient(120% 120% at 20% 20%, #0e1a34 0%, #081020 35%, #050a16 65%, #040811 100%);
    --card-bg: rgba(255, 255, 255, 0.04);
    --card-strong: rgba(255, 255, 255, 0.07);
    --text-primary: #f3f5f9;
    --text-secondary: #b8c1d4;
    --border-color: rgba(255, 255, 255, 0.08);
    --accent: #37d6ad;
    --accent-2: #f6c572;
    --muted: #6e7891;
    --success-color: #37d6ad;
}

body {
    font-family: 'Space Grotesk', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.hero-section {
    background: linear-gradient(135deg, rgba(55, 214, 173, 0.08), rgba(246, 197, 114, 0.08));
    backdrop-filter: blur(18px);
    border-radius: 24px;
    margin: 2rem 0;
    padding: 3rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

.hero-title {
    color: var(--text-primary);
    font-size: clamp(2.4rem, 3.5vw, 3.2rem);
    font-weight: 700;
    text-shadow: 0 6px 30px rgba(0,0,0,0.45);
    margin-bottom: 1rem;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
}

.hero-cta .btn {
    border-radius: 14px;
    font-weight: 600;
}

.hero-trust .pill {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
}

.btn-primary {
    background: linear-gradient(135deg, #37d6ad, #45e4b9);
    border: none;
    color: #04101d;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2fc99f, #3bdbaf);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--text-primary);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.1);
}

.fingerprint-card {
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.45);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.fingerprint-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.card-header {
    background: var(--card-strong);
    color: var(--text-primary);
    border-radius: 15px 15px 0 0 !important;
    padding: 1.25rem 1.5rem;
    border: none;
}

.card-body {
    background: var(--card-bg);
    color: var(--text-primary);
}

.fingerprint-data-wrapper {
    position: relative;
}

.fingerprint-hash, .fingerprint-raw {
    font-family: 'Source Code Pro', 'Courier New', monospace;
    background: rgba(255, 255, 255, 0.04);
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow-wrap: break-word;
    word-break: break-all; /* Fallback */
}

.fingerprint-hash {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--accent-2);
    padding-right: 40px;
}

.fingerprint-raw {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-height: 150px;
    overflow-y: auto;
    padding-right: 40px;
}

.copy-btn {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 5px;
    transition: color 0.2s ease, transform 0.2s ease;
}

.copy-btn:hover {
    color: var(--text-primary);
    transform: translateY(-50%) scale(1.1);
}

.copy-btn.copied {
    color: var(--success-color);
}

.component-breakdown {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.component-item {
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0.25rem;
    margin: 0;
}

.component-item:last-child {
    border-bottom: none;
}

.component-label {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.component-value {
    font-family: 'Source Code Pro', 'Courier New', monospace;
    color: var(--text-secondary);
    font-size: 0.85rem;
    overflow-wrap: break-word;
}

.toggle-details-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
}

.toggle-details-btn:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.12);
}

.toggle-details-btn .fa-chevron-down {
    transition: transform 0.3s ease;
}

.toggle-details-btn:not(.collapsed) .fa-chevron-down {
    transform: rotate(180deg);
}

.loading-spinner, .error-message, .info-section {
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    border: 1px solid var(--border-color);
}

.loading-spinner {
    font-size: 1.2rem;
    text-align: center;
}

.error-message {
    background: rgba(220, 53, 69, 0.16);
    color: #ffb3ba;
}

.info-section {
    background: var(--card-bg);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.badge-custom {
    background: linear-gradient(135deg, #37d6ad, #2fc99f);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin: 0.2rem;
    border: 1px solid var(--border-color);
}

.icon-gradient {
    background: linear-gradient(135deg, #37d6ad, #f6c572);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
}

.section-title {
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 600;
}

.accordion-button {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.accordion-button:not(.collapsed) {
    color: var(--accent-2);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(55, 214, 173, 0.25);
}

.accordion-body {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
}

.faq-accordion .accordion-item {
    margin-bottom: 1.1rem;
}

.faq-accordion .accordion-item:last-of-type {
    margin-bottom: 0;
}

.action-buttons {
    gap: 0.75rem;
}

.action-buttons .btn {
    border-radius: 999px;
}

.results-actions {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.guidance-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.guidance-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem 1.3rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.32);
}

.guidance-card ul {
    padding-left: 1rem;
    color: var(--text-secondary);
}

.copy-toast {
    position: fixed;
    bottom: 22px;
    right: 22px;
    background: rgba(4, 16, 29, 0.9);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.45);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1060;
}

.copy-toast.show {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 576px) {
    .copy-btn {
        position: static;
        transform: none;
        margin-top: 0.4rem;
    }

    .fingerprint-hash, .fingerprint-raw {
        padding-right: 1rem;
    }

    .hero-section {
        padding: 2.25rem 1.5rem;
    }
}