:root {
    --bg-base: #030612;
    --bg-panel: rgba(10, 15, 30, 0.75);
    --bg-input: rgba(15, 23, 42, 0.6);
    --border-color: rgba(6, 182, 212, 0.15);
    --border-focus: rgba(6, 182, 212, 0.6);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #00f2fe;
    --accent-gradient: linear-gradient(135deg, #00f2fe, #1e40af);
    --glass-blur: blur(16px);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    background-image: linear-gradient(rgba(3, 6, 18, 0.88), rgba(3, 6, 18, 0.94)), url('cyberpunk_bg2.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
    overflow-x: hidden;
    position: relative;
}

/* Background Animations */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.background-elements::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 35%;
    background-image: linear-gradient(rgba(0, 242, 254, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 242, 254, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: linear-gradient(to top, rgba(0,0,0,1), transparent);
    -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,1), transparent);
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: float 20s infinite ease-in-out alternate;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: #0ea5e9;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: #1e40af;
    bottom: -200px;
    right: -100px;
    animation-delay: -5s;
}

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

.container {
    width: 100%;
    max-width: 1280px;
    position: relative;
    z-index: 1;
    transition: max-width 0.4s ease;
}

/* Adjust container width depending on active view for perfect alignment */
.container.auth-active {
    max-width: 1100px;
}

.container.app-active {
    max-width: 1200px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent-gradient);
    border-radius: 8px;
    mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"/></svg>') no-repeat center / contain;
    -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"/></svg>') no-repeat center / contain;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text; 
    -webkit-text-fill-color: transparent;
}

.tm {
    font-size: 1rem;
    vertical-align: super;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
}

/* Glass Panel Form */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.form-section {
    margin-bottom: 2rem;
}

.section-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 500;
    color: #e2e8f0;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-color);
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin: 2rem 0;
}

/* Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.row {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.half { flex: 1 1 200px; }
.third { flex: 1 1 150px; }

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.badge {
    background: rgba(139, 92, 246, 0.2);
    color: #c4b5fd;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 6px;
    vertical-align: middle;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="email"],
select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

input::placeholder {
    color: rgba(148, 163, 184, 0.4);
}

input:focus, select:focus {
    border-color: var(--border-focus);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

.select-container {
    position: relative;
}

.select-container::after {
    content: '▼';
    font-size: 0.7rem;
    color: var(--text-secondary);
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

select {
    appearance: none;
    cursor: pointer;
}

/* Checkboxes */
.checkbox-trigger {
    margin: 1.5rem 0;
}

.custom-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    position: relative;
}

.custom-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    height: 20px;
    width: 20px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-right: 10px;
    position: relative;
    transition: var(--transition);
}

.custom-checkbox:hover input ~ .checkmark {
    border-color: var(--border-focus);
}

.custom-checkbox input:checked ~ .checkmark {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 4px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-label {
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Card Checkboxes (Grid) */
.grid-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.card-checkbox {
    display: block;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: var(--transition);
}

.card-checkbox .checkmark {
    position: absolute;
    right: 10px;
    top: 15px;
    margin: 0;
}

.card-checkbox:hover {
    border-color: rgba(148, 163, 184, 0.3);
    transform: translateY(-2px);
}

.card-checkbox input:checked ~ .card-content h3 {
    color: var(--accent-color);
}

.card-checkbox:has(input:checked) {
    border-color: var(--accent-color);
    background: rgba(14, 165, 233, 0.05);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.card-checkbox .switch {
    pointer-events: none;
    transform: scale(0.85);
    transform-origin: left center;
    margin: 0;
}

.card-checkbox input:checked ~ .card-content .switch .slider {
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
}

.card-checkbox input:checked ~ .card-content .switch .slider:before {
    transform: translateX(18px) !important; /* Adjusted slightly for a perfect visual fit */
    background-color: #ffffff !important;
}

.card-content h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0;
    transition: var(--transition);
    pointer-events: none;
}

.card-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: calc(37.4px + 0.75rem);
    pointer-events: none;
}

/* Switches (Toggles) */
.advanced-toggles {
    margin-bottom: 1.5rem;
}

.toggle-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .4s;
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

input:checked + .slider:before {
    transform: translateX(20px);
    background-color: white;
}

.toggle-label {
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Hidden Groups */
.hidden-group {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.hidden-group.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

#secondary-ligand-group.show {
    display: block; /* override row flex */
}

/* Submit Button */
.form-actions {
    margin-top: 3rem;
    text-align: right;
}

.submit-btn {
    position: relative;
    background: var(--bg-input);
    color: white;
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.btn-glow {
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
    opacity: 0;
    transform: scale(0.5);
    transition: var(--transition);
    z-index: 1;
}

.submit-btn:hover {
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(14, 165, 233, 0.6);
}

.submit-btn:hover::before {
    opacity: 1;
}

.submit-btn:hover .btn-glow {
    opacity: 1;
    transform: scale(1);
}

.btn-text, .btn-icon {
    position: relative;
    z-index: 2;
}

.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.submit-btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Responsive */
@media (max-width: 768px) {
    .glass-panel {
        padding: 1.5rem;
    }
    .row {
        flex-direction: column;
        gap: 1rem;
    }
    .form-actions {
        text-align: center;
    }
    .submit-btn {
        width: 100%;
        justify-content: center;
    }
}

/* --- Auth Views & Utility Classes --- */
.full-width {
    width: 100%;
    justify-content: center;
}

.auth-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.auth-switch {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.auth-switch a:hover {
    color: #38bdf8;
    text-decoration: underline;
}

.helper-text {
    font-size: 0.8rem;
    color: #10b981;
    margin-top: 0.5rem;
}

/* Header for Authenticated Form */
.auth-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#user-greeting {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    color: var(--accent-color);
    font-weight: 500;
}

.text-btn {
    background: transparent;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.text-btn:hover {
    color: #f87171;
    text-decoration: underline;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    border-left: 4px solid var(--accent-color);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    font-size: 0.95rem;
    animation: slideIn 0.3s ease forwards;
    opacity: 0;
    transform: translateX(100%);
    max-width: 350px;
}

.toast.error {
    border-left-color: #ef4444;
}

.toast.success {
    border-left-color: #10b981;
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* --- Premium Landing Page Styles --- */
.landing-view {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 0 auto;
    padding: 1rem 0;
    gap: 3.5rem;
}

.landing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    background: rgba(17, 24, 39, 0.4);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 1rem;
}

.landing-header .logo-container {
    margin: 0;
    justify-content: flex-start;
}

.landing-header .brand-logo {
    max-height: 48px;
    border-radius: 6px;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.landing-nav {
    display: flex;
    gap: 2rem;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    padding: 0.25rem 0;
    transition: var(--transition);
}

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

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
    box-shadow: 0 0 8px var(--accent-color);
}

.nav-item.active::after, .nav-item:hover::after {
    width: 100%;
}

.request-demo-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--text-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.request-demo-btn:hover {
    background: rgba(14, 165, 233, 0.1);
    box-shadow: 0 0 15px rgba(14, 165, 233, 0.25);
    transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    min-height: 500px;
    margin-top: -3rem;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
    align-items: flex-start;
}

.hero-title {
    font-family: 'Outfit', sans-serif;
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: #ffffff;
}

.gradient-text {
    background: linear-gradient(90deg, #00f2fe, #0ea5e9, #1e40af);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
}

.title-white {
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 580px;
    font-weight: 300;
    margin: 0;
}

.hero-buttons {
    display: flex;
    justify-content: flex-start;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.explore-btn {
    background: #00f2fe;
    color: #030612;
    border: none;
    padding: 0.9rem 2.2rem;
    border-radius: 10px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
    transition: var(--transition);
}

.explore-btn:hover {
    background: #38bdf8;
    box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
    transform: translateY(-2px);
}

.btn-icon-rocket {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.explore-btn:hover .btn-icon-rocket {
    transform: translate(2px, -2px) scale(1.1);
}

.watch-demo-btn {
    background: transparent;
    border: 1px solid #00f2fe;
    color: #00f2fe;
    padding: 0.9rem 2.2rem;
    border-radius: 10px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
}

.watch-demo-btn:hover {
    background: rgba(0, 242, 254, 0.1);
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
    transform: translateY(-2px);
}

.btn-icon-play {
    width: 18px;
    height: 18px;
    color: #00f2fe;
}

/* Hero Right Visuals */
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.molecule-visualizer {
    width: 100%;
    max-width: 650px;
    height: 650px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.molecule-graphic {
    width: 100%;
    height: 100%;
}

.molecule-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    mix-blend-mode: screen;
    filter: drop-shadow(0 0 30px rgba(0, 242, 254, 0.25));
    animation: none !important;
    transform: none !important;
}

@keyframes rotateMolecule {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.pulse-node {
    animation: pulseGlow 3s infinite ease-in-out alternate;
}

.pulse-node-delayed {
    animation: pulseGlow 3.5s infinite ease-in-out alternate;
    animation-delay: 1.5s;
}

@keyframes pulseGlow {
    0% { r: 14px; opacity: 0.8; }
    100% { r: 17px; opacity: 1; filter: drop-shadow(0 0 12px var(--accent-color)); }
}

/* Floating Glassmorphism Cards */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: var(--transition);
    animation: floatCard 6s infinite ease-in-out;
}

.floating-card:hover {
    border-color: #00f2fe;
    box-shadow: 0 20px 45px rgba(0, 242, 254, 0.35);
    transform: translateY(-5px) scale(1.02);
}

.binding-affinity-card {
    top: 15%;
    right: -10%;
    animation-delay: 0s;
}

.ic50-card {
    bottom: 12%;
    right: -5%;
    animation-delay: -3s;
}

@keyframes floatCard {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

.card-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.4rem;
    border-radius: 10px;
}

.card-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.card-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.card-value {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
}

.mini-chart {
    margin-top: 4px;
}

/* Features Bar */
.features-bar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
    width: 100%;
    background: rgba(10, 15, 30, 0.4);
    backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(0, 242, 254, 0.15);
    border-radius: 20px;
    padding: 1.5rem 1.25rem;
    margin-top: -4rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-right: 1px solid rgba(148, 163, 184, 0.1);
}

.feature-item:last-child {
    border-right: none;
}

.feature-icon-container {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
    transition: var(--transition);
}

.feature-item:hover .feature-icon-container {
    border-color: #00f2fe;
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.35);
    transform: scale(1.05);
}

.feature-svg-icon {
    width: 22px;
    height: 22px;
    color: #00f2fe;
    filter: drop-shadow(0 0 4px rgba(0, 242, 254, 0.6));
}

.feature-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.feature-info h4 {
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.2;
}

.feature-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

/* --- Premium Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(6, 9, 19, 0.85);
    backdrop-filter: blur(12px);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 90%;
    max-width: 900px;
    background: rgba(17, 24, 39, 0.85) !important;
    border-color: rgba(14, 165, 233, 0.3) !important;
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    padding: 2.5rem 2rem 2rem 2rem;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.modal-close-btn:hover {
    color: #ef4444;
}

.modal-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1.5rem;
    text-align: center;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 ratio */
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Responsive Customizations */
@media (max-width: 1024px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .hero-left {
        align-items: center;
        text-align: center;
    }
    .hero-subtitle {
        margin: 0 auto;
    }
    .hero-buttons {
        justify-content: center;
    }
    .features-bar {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    .feature-item:nth-child(3) {
        border-right: none;
    }
    .binding-affinity-card {
        right: 0%;
    }
    .ic50-card {
        right: 5%;
    }
}

@media (max-width: 768px) {
    .landing-header {
        flex-direction: column;
        gap: 1.25rem;
        padding: 1rem;
    }
    .landing-nav {
        gap: 1.25rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero-title {
        font-size: 2.75rem;
    }
    .features-bar {
        grid-template-columns: 1fr;
        padding: 1rem;
    }
    .feature-item {
        border-right: none;
        border-bottom: 1px solid rgba(148, 163, 184, 0.1);
        padding-bottom: 1rem;
    }
    .feature-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
}


/* --- Custom Layout for Cards with Icons --- */
.card-layout-flex {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.card-icon-wrapper {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    box-shadow: inset 0 0 10px rgba(0, 242, 254, 0.1);
    transition: var(--transition);
}

.feature-icon {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 0 5px rgba(0, 242, 254, 0.5));
}

.card-checkbox:hover .card-icon-wrapper {
    background: rgba(14, 165, 233, 0.1);
    border-color: rgba(14, 165, 233, 0.4);
    box-shadow: inset 0 0 15px rgba(0, 242, 254, 0.2), 0 0 10px rgba(0, 242, 254, 0.2);
}

.card-checkbox input:checked ~ .card-layout-flex .card-icon-wrapper {
    background: rgba(14, 165, 233, 0.15);
    border-color: var(--accent-color);
    box-shadow: inset 0 0 15px rgba(0, 242, 254, 0.3), 0 0 15px rgba(0, 242, 254, 0.4);
}

.card-content-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card-content-body h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.2rem;
    transition: var(--transition);
    color: var(--text-primary);
}

.card-checkbox input:checked ~ .card-layout-flex .card-content-body h3 {
    color: var(--accent-color);
}

.card-content-body p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

.card-action-wrapper {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-check-svg {
    width: 24px;
    height: 24px;
    color: var(--border-color);
    transition: var(--transition);
}

.circle-check-svg path {
    stroke-dasharray: 20;
    stroke-dashoffset: 20;
    transition: stroke-dashoffset 0.3s ease-in-out;
}

.card-checkbox input:checked ~ .card-layout-flex .card-action-wrapper .circle-check-svg {
    color: var(--accent-color);
}

.card-checkbox input:checked ~ .card-layout-flex .card-action-wrapper .circle-check-svg path {
    stroke-dashoffset: 0;
}

/* Make grid responsive to fit these nicely */
.grid-checkboxes {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .grid-checkboxes {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

/* Advanced Simulations Layout */
.advanced-toggles {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.custom-advanced-toggle {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.85rem 1rem;
    width: 100%;
    min-width: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.custom-advanced-toggle:hover {
    border-color: rgba(14, 165, 233, 0.4);
    background: rgba(15, 23, 42, 0.6);
}

.custom-advanced-toggle:has(input:checked) {
    border-color: var(--accent-color);
    background: rgba(14, 165, 233, 0.07);
}

.custom-advanced-toggle:has(input:checked) .adv-icon-wrapper {
    background: rgba(14, 165, 233, 0.15);
    border-color: var(--accent-color);
}

.adv-icon-wrapper {
    width: 40px;
    height: 40px;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    flex-shrink: 0;
}

.adv-icon-wrapper .feature-icon {
    width: 20px;
    height: 20px;
}

.adv-label-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.toggle-label {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.toggle-sublabel {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 640px) {
    .advanced-toggles {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem;
    }
    .custom-advanced-toggle {
        padding: 0.6rem 0.75rem;
    }
    .toggle-label {
        font-size: 0.8rem;
    }
    .toggle-sublabel {
        display: none;
    }
}