:root {
    /* Dark Theme with Modern Palette */
    --bg-main: #140A0A; /* Very dark red/brown tint */
    --bg-glass: rgba(30, 15, 15, 0.6);
    --bg-glass-hover: rgba(45, 20, 20, 0.8);
    --border-glass: rgba(239, 68, 68, 0.15); /* #EF4444 with low opacity */
    
    --primary: #EF4444; /* High Severity / Brand */
    --primary-hover: #DC2626;
    --primary-glow: rgba(239, 68, 68, 0.3);
    
    --secondary: #F87171;
    --accent: #F59E0B; /* Medium Severity */
    --safe: #10B981; /* No Breaches */
    
    --text-primary: #F9FAFB;
    --text-secondary: #D1D5DB;
    --text-muted: #9CA3AF;
    
    --control-bg: rgba(255, 255, 255, 0.05);
    --control-border: rgba(255, 255, 255, 0.1);
    
    --shadow-glass: 0 8px 32px 0 rgba(239, 68, 68, 0.05);
    --shadow-inner: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem 1.5rem;
    
    /* Subtle radial gradient background */
    background-image: 
        radial-gradient(circle at top center, rgba(239, 68, 68, 0.08) 0%, transparent 50%),
        radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
}

.app-container {
    width: 100%;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.logo h1 span {
    color: var(--primary);
}

.badge-secure {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--safe);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Glassmorphism Panels */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    box-shadow: var(--shadow-glass), var(--shadow-inner);
}

/* Hero Section */
.hero {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.hero p strong {
    color: var(--secondary);
}

/* Search Box */
.search-box {
    display: flex;
    gap: 0.75rem;
    padding: 1rem;
    margin-top: 1rem;
    position: relative;
    z-index: 10;
}

.input-wrapper {
    position: relative;
    flex: 1;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

input[type="email"] {
    width: 100%;
    height: 100%;
    padding: 0 1rem 0 3rem;
    background: var(--control-bg);
    border: 1px solid var(--control-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

input[type="email"]:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

input[type="email"]::placeholder {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0 1.5rem;
    height: 3.2rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--control-border);
}

.btn-secondary:hover {
    background-color: var(--control-bg);
    color: var(--text-primary);
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Status Section */
.status-section {
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.status-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.status-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.status-icon.danger {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--primary);
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.2);
}

.status-icon.safe {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--safe);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.status-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.status-card p {
    color: var(--text-secondary);
}

/* Results Section */
.results-section h3, .recommendations-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.severity-filter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.glass-input {
    background: var(--bg-glass);
    border: 1px solid var(--control-border);
    color: var(--text-primary);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
}

.glass-input:focus {
    outline: none;
    border-color: var(--text-muted);
}

.breach-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.breach-item {
    padding: 1.5rem;
    transition: transform 0.2s ease, background-color 0.2s;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.breach-item:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-2px);
}

.breach-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.breach-title {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.breach-title h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #fff;
}

.breach-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.severity-badge {
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.severity-high {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--primary);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.severity-medium {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--accent);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.severity-low {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--safe);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.breach-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.compromised-data {
    margin-top: 0.5rem;
}

.compromised-data h5 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.data-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.data-tag {
    background: var(--control-bg);
    border: 1px solid var(--control-border);
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-primary);
}

/* Recommendations */
.recommendations-panel {
    padding: 1.5rem;
}

.action-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.action-list li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.action-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-icon.warning {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--primary);
}

.action-icon.alert {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--accent);
}

.action-icon.info {
    background-color: rgba(96, 165, 250, 0.1);
    color: #60A5FA;
}

.action-text h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 0.25rem;
}

.action-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Footer */
footer {
    display: flex;
    justify-content: center;
    margin-top: auto;
    padding-top: 2rem;
}

.privacy-notice {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--control-bg);
    border: 1px solid var(--control-border);
    padding: 1rem;
    border-radius: 8px;
    max-width: 600px;
}

.privacy-notice svg {
    flex-shrink: 0;
    color: var(--safe);
    margin-top: 0.1rem;
}

@media (max-width: 600px) {
    .search-box {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}