:root {
    --bg-color: #030d12;
    --text-primary: #e6f7f2;
    --text-secondary: #8fbdb2;
    --accent-primary: #00ffa2;
    --accent-hover: #00d989;
    --card-bg: rgba(6, 26, 33, 0.7);
    --card-border: rgba(0, 255, 162, 0.15);
    
    --risk-high: #ff2a5f;
    --risk-medium: #ff9b00;
    --risk-low: #00ffa2;
    --glow-primary: rgba(0, 255, 162, 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(0, 255, 162, 0.05) 0%, transparent 50%),
        linear-gradient(rgba(0, 255, 162, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 162, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.5;
}

/* Dynamic Background Orbs */
.background-effects {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 10s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, #00ffa2, #006642);
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 30vw;
    height: 30vw;
    background: radial-gradient(circle, #ff2a5f, #7a0024);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(30px, 50px) scale(1.1); }
}

/* Layout */
.container-inner {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    z-index: 1;
}

.page {
    display: none;
    animation: fadeIn 0.4s ease forwards;
    padding-top: 6rem;
    min-height: 100vh;
}

.page.active {
    display: block;
}

/* Page Headers */
.page-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 0 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Hero Section */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    gap: 4rem;
    min-height: 80vh;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #fff 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title .highlight {
    background: linear-gradient(to right, var(--accent-primary), #00d989);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.icon-large {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 3s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); filter: drop-shadow(0 0 10px rgba(0,255,162,0.3)); }
    50% { transform: scale(1.05); filter: drop-shadow(0 0 20px rgba(0,255,162,0.6)); }
    100% { transform: scale(1); filter: drop-shadow(0 0 10px rgba(0,255,162,0.3)); }
}

.highlight {
    color: var(--accent-primary);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.abstract-graphic {
    position: relative;
    width: 400px;
    height: 400px;
}

.glass-orb {
    position: absolute;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(0,255,162,0.4), rgba(0,102,66,0.1));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0,255,162,0.3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 40px rgba(0,255,162,0.2);
    animation: floatOrb 8s infinite alternate ease-in-out;
}

.orb-small {
    width: 150px;
    height: 150px;
    top: 30%;
    left: 70%;
    background: linear-gradient(135deg, rgba(255,42,95,0.4), rgba(122,0,36,0.1));
    border-color: rgba(255,42,95,0.3);
    animation-delay: -3s;
    box-shadow: 0 0 40px rgba(255,42,95,0.2);
}

@keyframes floatOrb {
    0% { transform: translate(-50%, -50%) translateY(0) rotate(0deg); }
    100% { transform: translate(-50%, -50%) translateY(-20px) rotate(10deg); }
}

.code-snippet {
    position: absolute;
    bottom: 10%;
    left: -15%;
    background: rgba(6, 26, 33, 0.8);
    border: 1px solid var(--card-border);
    padding: 1.5rem;
    border-radius: 12px;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    color: var(--accent-primary);
    backdrop-filter: blur(12px);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(0, 255, 162, 0.1);
    z-index: 2;
    animation: floatSnippet 6s infinite alternate ease-in-out;
}

@keyframes floatSnippet {
    from { transform: translateY(0); }
    to { transform: translateY(-15px); }
}

.features-band {
    background: linear-gradient(to bottom, transparent, rgba(6, 26, 33, 0.5));
    padding: 4rem 0;
    border-top: 1px solid var(--card-border);
}

.features-header {
    margin-bottom: 5rem;
    position: relative;
}

.features-header h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.features-header p {
    color: var(--text-secondary);
}

.dashboard-layout {
    max-width: 800px;
}

/* Glassmorphism Components */
.glass-panel, .glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.glass-panel {
    padding: 2rem;
    margin-bottom: 2rem;
}

/* Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

input {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--card-border);
    color: white;
    padding: 1rem 1.2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', monospace;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Buttons */
.primary-btn, .secondary-btn {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    border: none;
}

.primary-btn {
    background: var(--accent-primary);
    color: #000;
    box-shadow: 0 8px 25px rgba(0, 255, 162, 0.3);
    position: relative;
    overflow: hidden;
}

.primary-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.primary-btn:hover::after {
    opacity: 1;
}

.primary-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 30px rgba(0, 255, 162, 0.5);
}

.primary-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

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

.secondary-btn:hover {
    background: rgba(255,255,255,0.05);
}

.w-full {
    width: 100%;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

.hidden {
    display: none !important;
}

.error-message {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--risk-high);
    color: #fca5a5;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Results Section */
.result-section {
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.glass-card {
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
}

.glass-card h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
}

.text-white { color: white; }
.risk-high { color: var(--risk-high); }
.risk-medium { color: var(--risk-medium); }
.risk-low { color: var(--risk-low); }

.helper-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.explanation-panel {
    text-align: left;
    margin-top: 1rem;
}

.explanation-panel h3 {
    text-align: left;
    margin-bottom: 1rem;
}

.explanation-panel p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
}



/* Navigation */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    background: rgba(3, 13, 18, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 255, 162, 0.1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-brand span {
    color: var(--accent-primary);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

/* Utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }

/* About Page Specifics */
.about-content h3 {
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.about-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-list {
    list-style-position: inside;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-left: 0.5rem;
}

.feature-list li {
    margin-bottom: 0.4rem;
}
.feature-list li strong {
    color: var(--text-primary);
}

/* Features Grid on Home Page */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    text-align: left;
}

.feature-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
    padding: 2rem;
    border-radius: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 162, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.content-rich {
    max-width: 900px;
    margin: 0 auto;
}

/* Footer */
.global-footer {
    border-top: 1px solid var(--card-border);
    background: rgba(3, 13, 18, 0.85);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-brand {
    font-weight: 700;
    font-size: 1.2rem;
}

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

@media (max-width: 900px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-title { font-size: 2.5rem; }
}

@media (max-width: 600px) {
    .container-inner { padding: 1.5rem; }
    .page-header h1 { font-size: 2rem; }
    .cards-grid { grid-template-columns: 1fr; }
    .footer-content { 
        flex-direction: column; 
        gap: 1rem; 
        text-align: center; 
    }
    .nav-links {
        gap: 0.8rem;
        justify-content: center;
        width: 100%;
        margin-top: 1rem;
    }
    .glass-nav {
        flex-direction: column;
        padding: 1rem;
    }
    .page {
        padding-top: 8rem;
    }
}

/* Dashboard Split & Molecule Visual */
.dashboard-split {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.molecule-visual {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.molecule-visual img {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 1rem;
    background: white;
}

.placeholder-text {
    color: var(--text-secondary);
    font-style: italic;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .dashboard-split {
        grid-template-columns: 1fr;
    }
}


/* Workflow Section */
.workflow-section {
    padding: 6rem 0;
    border-top: 1px solid var(--card-border);
}

.section-header {
    margin-bottom: 4rem;
}

.workflow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.workflow-step {
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.step-num {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(0, 255, 162, 0.05);
    position: absolute;
    top: -10px;
    right: 10px;
    z-index: 0;
}

.workflow-step h3 {
    position: relative;
    z-index: 1;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.workflow-step p {
    position: relative;
    z-index: 1;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.about-box {
    padding: 2rem;
    text-align: left;
}

.about-box.wide {
    grid-column: span 2;
}

.about-box h3 {
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.about-box p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.grid-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    .about-box.wide {
        grid-column: span 1;
    }
}


/* Large Results Page Styles */
.results-top-bar {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.large-title {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.SMILES-text {
    color: var(--text-secondary);
    font-family: monospace;
    font-size: 0.9rem;
}

.large-results-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.primary-insight-card {
    padding: 3rem;
}

.insight-split {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.molecule-display {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    justify-content: center;
}

.molecule-display img {
    max-width: 100%;
    height: auto;
}

.main-metrics {
    flex: 1;
}

.huge-value {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 2rem;
}

.mid-value {
    font-size: 2rem;
    font-weight: 700;
}

.metrics-row {
    display: flex;
    gap: 2rem;
}

.models-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.model-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    border: 1px solid var(--card-border);
}

.model-name {
    font-weight: 600;
}

.model-prob-bar {
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    width: 100px;
    margin: 0 1rem;
    overflow: hidden;
}

.prob-fill {
    height: 100%;
    background: var(--accent-primary);
}

.full-width {
    grid-column: span 2;
}

.large-explanation {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-top: 1rem;
}

@media (max-width: 1100px) {
    .large-results-grid {
        grid-template-columns: 1fr;
    }
    .full-width {
        grid-column: span 1;
    }
    .insight-split {
        flex-direction: column;
    }
}


/* Metrics Table & Scientific Components */
.metrics-table-container {
    overflow-x: auto;
    margin-top: 2rem;
}

.metrics-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background: rgba(255,255,255,0.02);
    border-radius: 12px;
    overflow: hidden;
}

.metrics-table th, .metrics-table td {
    padding: 1.2rem;
    border-bottom: 1px solid var(--card-border);
}

.metrics-table th {
    background: rgba(0, 255, 162, 0.05);
    color: var(--accent-primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.metrics-table tr:last-child td {
    border-bottom: none;
}

.metrics-table tr:hover td {
    background: rgba(255,255,255,0.03);
}

/* SHAP Bar Chart styles */
.shap-bar-container {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.shap-row {
    display: grid;
    grid-template-columns: 150px 1fr 60px;
    align-items: center;
    gap: 1rem;
}

.shap-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shap-bar-bg {
    height: 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.shap-bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 1s ease-out;
}

.shap-val {
    font-size: 0.85rem;
    font-family: monospace;
    text-align: right;
}

.pos-bar { background: var(--risk-high); }
.neg-bar { background: var(--accent-primary); }


/* Neighbor & Alert Styles */
.similarity-alert {
    background: rgba(255, 155, 0, 0.1);
    border: 1px solid var(--risk-medium);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--risk-medium);
}

.neighbor-info {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    border: 1px solid var(--card-border);
    text-align: center;
}

.neighbor-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.neighbor-similarity {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.neighbor-label {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(255,255,255,0.1);
}