@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --bg-dark: #070e10;
    --bg-medium: #0e1a1e;
    --bg-light: #16272c;
    --primary: #00ffd5; /* Electric Bioluminescent Cyan */
    --primary-glow: rgba(0, 255, 213, 0.3);
    --secondary: #bd5beb; /* Primordial Purple */
    --secondary-glow: rgba(189, 91, 235, 0.25);
    --accent: #ff8800; /* Lightning Amber Spark */
    --accent-glow: rgba(255, 136, 0, 0.3);
    --text-bright: #e6f6f5;
    --text-normal: #a5c4c2;
    --text-muted: #648c89;
    --border: rgba(0, 255, 213, 0.15);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 32px;
    --font-heading: 'Outfit', sans-serif;
    --font-mono: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-normal);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-light);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Background Canvas */
#ambient-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 50% 50%, var(--bg-medium) 0%, var(--bg-dark) 100%);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-bright);
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

button {
    cursor: pointer;
    font-family: inherit;
}

/* Sticky Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 8%;
    background: rgba(7, 14, 16, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 255, 213, 0.06);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 24px;
    color: var(--text-bright);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

nav {
    display: flex;
    align-items: center;
    gap: 35px;
}

nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-normal);
    position: relative;
    padding: 5px 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--primary);
    box-shadow: 0 0 8px var(--primary-glow);
    transition: var(--transition);
}

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

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

.spark-nav-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--bg-dark) !important;
    font-weight: 700;
    font-family: var(--font-mono);
    box-shadow: 0 4px 15px var(--primary-glow);
    transition: var(--transition);
}

.spark-nav-btn::after {
    display: none;
}

.spark-nav-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(189, 91, 235, 0.5);
    color: var(--bg-dark) !important;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-bright);
    font-size: 24px;
}

/* Home Hero Section */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 60px 8%;
    background-image: linear-gradient(to bottom, rgba(7, 14, 16, 0.92), rgba(7, 14, 16, 0.95)), url('../images/primordial-pond.png');
    background-size: cover;
    background-position: center;
}

.hero-content {
    max-width: 850px;
    text-align: center;
    position: relative;
    z-index: 5;
}

.tagline {
    font-family: var(--font-mono);
    color: var(--primary);
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid rgba(0, 255, 213, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(0, 255, 213, 0.05);
}

.hero h1 {
    font-size: 72px;
    font-family: var(--font-heading);
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-bright) 40%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 20px;
    color: var(--text-normal);
    margin-bottom: 45px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 16px;
    transition: var(--transition);
}

.cta-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--bg-dark);
    box-shadow: 0 4px 20px var(--primary-glow);
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(189, 91, 235, 0.45);
}

.cta-secondary {
    border: 1.5px solid rgba(0, 255, 213, 0.3);
    color: var(--text-bright);
    background: rgba(22, 39, 44, 0.4);
    margin-left: 20px;
}

.cta-secondary:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 213, 0.08);
    transform: translateY(-3px);
}

/* general sections */
section {
    padding: 100px 8%;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: 40px;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header p {
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(14, 26, 30, 0.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(0, 255, 213, 0.35);
    box-shadow: 0 15px 40px rgba(0, 255, 213, 0.05);
    transform: translateY(-5px);
}

/* Theory Grid Page */
.theory-intro {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-bottom: 80px;
}

.theory-intro-text {
    flex: 1.2;
}

.theory-intro-text h2 {
    font-size: 38px;
    margin-bottom: 20px;
}

.theory-intro-text p {
    margin-bottom: 20px;
    font-size: 16px;
}

.theory-intro-graphic {
    flex: 0.8;
    background: linear-gradient(135deg, rgba(22, 39, 44, 0.8) 0%, rgba(189, 91, 235, 0.1) 100%);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.molecular-orb {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary) 0%, rgba(189, 91, 235, 0.4) 100%);
    filter: blur(8px);
    position: absolute;
    animation: pulseGlow 4s infinite alternate;
}

/* Historical Letter styling */
.historical-letter {
    background: #fdfaf2;
    border: 1px solid #d4c2a5;
    color: #4a3e2a;
    border-radius: 4px;
    padding: 50px;
    font-family: 'Georgia', serif;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    line-height: 1.8;
    max-width: 800px;
    margin: 60px auto 0;
    position: relative;
}

.historical-letter::before {
    content: '"';
    font-size: 120px;
    color: rgba(74, 62, 42, 0.05);
    position: absolute;
    top: -20px;
    left: 20px;
    font-family: serif;
}

.letter-header {
    font-style: italic;
    margin-bottom: 24px;
    border-bottom: 1px dashed rgba(74, 62, 42, 0.2);
    padding-bottom: 12px;
}

.letter-signature {
    margin-top: 30px;
    text-align: right;
    font-weight: bold;
    font-style: italic;
}

/* Laboratory Spark Page */
.lab-layout {
    display: flex;
    gap: 60px;
    padding: 60px 8%;
}

.lab-workspace {
    flex: 1.3;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.flask-container {
    height: 480px;
    background: rgba(7, 14, 16, 0.6);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 30px rgba(0, 255, 213, 0.05);
}

/* Chemical Flask graphics using CSS */
.beaker-glass {
    position: relative;
    width: 250px;
    height: 300px;
    border: 6px solid #a5c4c2;
    border-bottom-left-radius: 125px 90px;
    border-bottom-right-radius: 125px 90px;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    overflow: hidden;
    background: transparent;
    display: flex;
    align-items: flex-end;
}

.beaker-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 100px;
    border: 6px solid #a5c4c2;
    border-top: none;
    background: transparent;
}

.beaker-fluid {
    width: 100%;
    height: 25%;
    background: linear-gradient(135deg, rgba(0, 255, 213, 0.45) 0%, rgba(189, 91, 235, 0.5) 100%);
    position: relative;
    transition: all 0.6s ease;
}

/* Bubbles inside beaker */
.bubble-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    bottom: 0;
    animation: riseUp 2.5s infinite ease-in;
}

/* Lightning Spark overlay */
.lightning-flash {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 10;
    pointer-events: none;
    opacity: 0;
}

.lightning-flash.sparking {
    animation: flashStrike 0.8s ease-out;
}

.lightning-svg {
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 280px;
    stroke: var(--accent);
    stroke-width: 4;
    fill: none;
    filter: drop-shadow(0 0 10px var(--accent-glow));
    opacity: 0;
}

.lightning-svg.strike {
    opacity: 1;
}

/* Lab controls panel */
.lab-controls {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.chemical-selector {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chem-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 25px;
    background: var(--bg-medium);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-normal);
    font-family: var(--font-mono);
    font-size: 14px;
    transition: var(--transition);
}

.chem-btn span.tag {
    font-size: 10px;
    background: rgba(0, 255, 213, 0.1);
    color: var(--primary);
    padding: 4px 8px;
    border-radius: 4px;
}

.chem-btn:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 213, 0.04);
}

.chem-btn.selected {
    border-color: var(--secondary);
    background: rgba(189, 91, 235, 0.08);
    color: var(--text-bright);
    box-shadow: 0 0 15px var(--secondary-glow);
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.slider-group label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    justify-content: space-between;
}

.slider-group label span {
    color: var(--primary);
}

.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-light);
    outline: none;
    transition: var(--transition);
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary-glow);
    cursor: pointer;
    transition: var(--transition);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.spark-trigger-btn {
    width: 100%;
    padding: 20px;
    background: linear-gradient(135deg, var(--accent) 0%, #ff4500 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--text-bright);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 5px 20px rgba(255, 136, 0, 0.3);
    transition: var(--transition);
}

.spark-trigger-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 136, 0, 0.55);
}

.spark-trigger-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Synthesis Result modal/card */
.result-panel {
    background: rgba(14, 26, 30, 0.95);
    border: 1.5px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 30px;
    margin-top: 20px;
    display: none;
    opacity: 0;
    transform: scale(0.95);
    transition: var(--transition);
    box-shadow: 0 10px 40px var(--accent-glow);
}

.result-panel.show {
    display: block;
    opacity: 1;
    transform: scale(1);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1.5px dashed rgba(255, 136, 0, 0.2);
    padding-bottom: 12px;
    margin-bottom: 15px;
}

.result-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    background: rgba(255, 136, 0, 0.15);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.result-body h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-bright);
}

.result-body p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Evolution Stage Cards */
.evolution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.evo-stage-card {
    background: rgba(14, 26, 30, 0.75);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    padding: 45px 35px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.evo-stage-badge {
    position: absolute;
    top: 25px;
    right: 25px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--primary);
    background: rgba(0, 255, 213, 0.08);
    padding: 5px 12px;
    border-radius: 4px;
    border: 1px solid rgba(0, 255, 213, 0.15);
}

.evo-icon {
    font-size: 40px;
    margin-bottom: 24px;
    text-shadow: 0 0 15px var(--primary-glow);
}

.evo-stage-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.evo-stage-card p {
    font-size: 14px;
    margin-bottom: 30px;
    flex-grow: 1;
}

.evo-list-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.evo-seeds-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.evo-seed-item {
    background: var(--bg-medium);
    padding: 14px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
    font-size: 13px;
    transition: var(--transition);
}

.evo-seed-item:hover {
    transform: translateX(4px);
    background: var(--bg-light);
}

.evo-seed-item h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.evo-seed-item p {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0;
}

/* Footer layout */
footer {
    background: var(--bg-dark);
    padding: 80px 8% 40px;
    border-top: 1px solid rgba(0, 255, 213, 0.06);
    color: var(--text-muted);
}

.footer-main {
    display: flex;
    justify-content: space-between;
    gap: 50px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 380px;
}

.footer-brand p {
    font-size: 14px;
    margin-top: 15px;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-col h4 {
    color: var(--text-bright);
    font-size: 16px;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    font-size: 14px;
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(0, 255, 213, 0.05);
    padding-top: 40px;
    font-size: 13px;
    font-family: var(--font-mono);
}

/* Custom Notifications alert */
.lab-alert {
    position: fixed;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(14, 26, 30, 0.95);
    border: 1.5px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: 14px 28px;
    font-family: var(--font-mono);
    color: var(--text-bright);
    z-index: 1000;
    box-shadow: 0 5px 25px var(--primary-glow);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.lab-alert.show {
    bottom: 30px;
}

/* Animations declarations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseGlow {
    0% {
        transform: translate(-30%, -20%) scale(1.0);
        opacity: 0.5;
    }
    100% {
        transform: translate(-25%, -25%) scale(1.2);
        opacity: 0.85;
    }
}

@keyframes riseUp {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }
    20% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
        transform: translateY(-160px) scale(1.2);
    }
}

@keyframes flashStrike {
    0%, 20%, 40%, 60%, 80%, 100% {
        background: transparent;
    }
    10%, 30%, 50% {
        background: rgba(255, 255, 255, 0.35);
    }
}

/* Responsive styles */
@media (max-width: 900px) {
    header {
        padding: 20px 4%;
    }
    nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(7, 14, 16, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 50px;
        gap: 35px;
        transition: var(--transition);
        z-index: 99;
    }
    nav.active {
        left: 0;
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero h1 {
        font-size: 48px;
    }
    .hero p {
        font-size: 16px;
    }
    .cta-secondary {
        margin-left: 0;
        margin-top: 15px;
    }
    .theory-intro {
        flex-direction: column;
        gap: 40px;
    }
    .theory-intro-graphic {
        width: 100%;
        height: 250px;
    }
    .lab-layout {
        flex-direction: column;
        padding: 40px 4%;
    }
    .evolution-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-main {
        flex-direction: column;
        gap: 40px;
    }
    .footer-links {
        flex-direction: column;
        gap: 40px;
    }
}

/* Dropdown Menu (Ecosystem) */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    cursor: pointer;
    text-decoration: none;
    color: var(--text-normal);
    font-weight: 500;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(14, 26, 30, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    min-width: 180px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.5);
    z-index: 100;
    margin-top: 10px;
}

.dropdown-content a {
    color: var(--text-normal);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: 13px;
    transition: var(--transition);
}

.dropdown-content a:hover {
    background: rgba(0, 255, 213, 0.08);
    color: var(--primary);
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* Authentication Modal styles */
.auth-tabs {
    display: flex;
    border-bottom: 1.5px solid var(--border);
    margin-bottom: 20px;
}

.auth-tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 10px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.auth-tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.auth-input-group {
    margin-bottom: 15px;
}

.auth-input-group label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.auth-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1.5px solid var(--border);
    color: var(--text-normal);
    padding: 10px;
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
}

.auth-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 8px rgba(0, 255, 213, 0.2);
}

/* Forum and Cards Hover */
.thread-card:hover {
    border-color: rgba(0, 255, 213, 0.3) !important;
    box-shadow: 0 5px 15px rgba(0, 255, 213, 0.05);
}

.evo-seed-item {
    transition: var(--transition);
}
.evo-seed-item:hover {
    border-color: rgba(189, 91, 235, 0.3) !important;
    box-shadow: 0 5px 15px rgba(189, 91, 235, 0.05);
}