/* ===================================
   CITADEL - Global Styles
   Green/Purple Theme with Knowledge Nodes
   =================================== */

:root {
    /* Core Colors - Green/Deep Purple */
    --bg-primary: #0a0a12;
    --bg-secondary: #0f0f1a;
    --bg-card: rgba(20, 20, 35, 0.6);
    --bg-card-hover: rgba(30, 30, 50, 0.8);

    /* Accent Colors */
    --accent-primary: #10b981;
    /* Emerald */
    --accent-secondary: #8b5cf6;
    /* Purple */
    --accent-glow: rgba(16, 185, 129, 0.3);
    --accent-purple-glow: rgba(139, 92, 246, 0.2);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-text: linear-gradient(135deg, #10b981 0%, #8b5cf6 100%);
    --gradient-bg: radial-gradient(ellipse at top, #1a0a2e 0%, #0a0a12 50%, #0a1a0f 100%);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #9494a4;
    /* Improved contrast for accessibility */

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;

    /* Borders & Effects */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --glass-bg: rgba(20, 20, 35, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--gradient-bg);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Nodes Animation */
.bg-nodes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

.bg-node {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-glow);
    animation: pulse 3s ease-in-out infinite;
}

.bg-node::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, var(--accent-glow), transparent);
    transform-origin: left center;
    opacity: 0.3;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    width: 100%;
    margin: 0 auto;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 18, 0.82);
    backdrop-filter: blur(16px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-scroll-hidden {
    opacity: 0;
    pointer-events: none;
    top: -30px;
}

.nav-centered {
    justify-content: center;
}

.nav-centered .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%) scale(1.3);
    transition: transform 0.4s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: var(--font-weight-bold);
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.8rem;
    color: var(--accent-primary);
    /* Emerald Green */
    text-shadow: 0 0 20px var(--accent-glow);
}

.nav-pricing {
    margin-left: auto;
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    opacity: 0;
    transform: translateX(10px);
    transition: all 0.4s ease;
}

.nav-pricing.show {
    opacity: 1;
    transform: translateX(0);
}

.nav-pricing:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    padding: 20px 24px 60px;
    position: relative;
    z-index: 1;
}

.hero-logo-container {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-large {
    font-size: 3.5rem;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}

.logo-large .logo-icon {
    font-size: 4.5rem;
}

.splash-text {
    position: absolute;
    top: 60%;
    right: -60px;
    transform: rotate(-15deg);
    background: none;
    color: var(--accent-primary);
    padding: 0;
    font-family: 'Press Start 2P', cursive;
    font-weight: 400;
    font-size: 1.2rem;
    text-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
    white-space: nowrap;
    pointer-events: none;
    z-index: 10;
    animation: breathing 0.4s ease-in-out infinite alternate;
}

@keyframes breathing {
    from {
        transform: rotate(-15deg) scale(1);
    }

    to {
        transform: rotate(-15deg) scale(1.1);
    }
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--accent-purple-glow);
    border: 1px solid var(--accent-secondary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--accent-secondary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.btn-discord {
    background: #5865F2;
    color: white;
    padding: 12px 24px;
}

.btn-discord:hover {
    background: #4752C4;
    transform: translateY(-2px);
}

.discord-icon {
    width: 20px;
    height: 20px;
}

/* Hero Visual - Node Cluster */
.hero-visual {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    opacity: 0.15;
    pointer-events: none;
}

.node-cluster {
    position: relative;
    width: 300px;
    height: 300px;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 30px var(--accent-glow);
}

.node-1 {
    top: 60px;
    left: 30px;
    animation: float 4s ease-in-out infinite;
}

.node-2 {
    top: 60px;
    right: 30px;
    animation: float 4s ease-in-out infinite 0.5s;
}

.node-3 {
    bottom: 60px;
    left: 60px;
    animation: float 4s ease-in-out infinite 1s;
}

.node-4 {
    bottom: 60px;
    right: 60px;
    animation: float 4s ease-in-out infinite 1.5s;
}

.node-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 1.2rem;
    box-shadow: 0 0 60px var(--accent-glow);
}

.connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.connection-line {
    stroke: var(--accent-primary);
    stroke-width: 2;
    opacity: 0.3;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sections */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: 60px;
}

/* Organic Knowledge Cell Styling */
.nexus-node {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 80px;
    /* Highly elliptical node feel */
    padding: 48px 40px;
    backdrop-filter: var(--glass-blur);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: cell-float 6s ease-in-out infinite;
}

.nexus-node::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 80px;
    padding: 2px;
    background: linear-gradient(135deg, var(--accent-primary), transparent, var(--accent-secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.3;
    transition: opacity 0.5s ease;
}

.nexus-node:hover {
    background: rgba(16, 185, 129, 0.05);
    transform: translateY(-10px) scale(1.02);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 60px rgba(16, 185, 129, 0.2),
        inset 0 0 20px rgba(16, 185, 129, 0.1);
}

.nexus-node:hover::before {
    opacity: 1;
    animation: border-rotate 4s linear infinite;
}

@keyframes border-rotate {
    0% {
        filter: hue-rotate(0deg);
    }

    100% {
        filter: hue-rotate(360deg);
    }
}

@keyframes cell-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Problem Section - High-Energy Connections */
.node-flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 60px;
    position: relative;
    padding: 40px 0;
}

.node-connector-lines {
    position: absolute;
    top: 50%;
    left: 10%;
    width: 80%;
    height: 3px;
    background: linear-gradient(90deg,
            transparent 0%,
            var(--accent-glow) 50%,
            transparent 100%);
    filter: blur(2px);
    z-index: 1;
    animation: energy-beam 4s ease-in-out infinite;
}

@keyframes energy-beam {

    0%,
    100% {
        opacity: 0.2;
        transform: scaleX(0.8);
    }

    50% {
        opacity: 0.6;
        transform: scaleX(1.1);
    }
}

@media (max-width: 768px) {
    .node-connector-lines {
        display: none;
    }

    .nexus-node {
        border-radius: 40px;
        padding: 40px 24px;
    }
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* Solution Section */
.solution {
    background-color: var(--bg-primary);
    background-image: linear-gradient(180deg, transparent 0%, var(--accent-purple-glow) 50%, transparent 100%);
}

.solution-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.solution-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.solution-list {
    list-style: none;
    text-align: left;
    display: inline-block;
}

.solution-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 1.1rem;
}

.check {
    background-color: var(--bg-primary);
    color: #ffffff;
    font-weight: bold;
}

/* How It Works - Animated Flow Path */
.steps-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    position: relative;
}

/* How It Works - High-Velocity Flow Path */
.flow-path {
    flex: 1;
    height: 60px;
    min-width: 80px;
}

.flow-path svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.path-main {
    fill: none;
    stroke: var(--accent-primary);
    stroke-width: 3;
    stroke-linecap: round;
    opacity: 0.4;
}

.path-glow {
    fill: none;
    stroke: var(--accent-primary);
    stroke-width: 8;
    stroke-linecap: round;
    opacity: 0.2;
    filter: blur(6px);
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: flow-pulse 2s linear infinite;
    /* Faster energy flow */
}

@keyframes flow-pulse {
    0% {
        stroke-dashoffset: 200;
        opacity: 0;
    }

    20% {
        opacity: 0.6;
    }

    80% {
        opacity: 0.6;
    }

    100% {
        stroke-dashoffset: 0;
        opacity: 0;
    }
}

.step {
    flex: 0 1 320px;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    /* Square with rounded corners for node feel */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin: 0 auto 24px;
    box-shadow: 0 0 30px var(--accent-glow);
    transform: rotate(45deg);
}

.step-number span {
    transform: rotate(-45deg);
}

@media (max-width: 1024px) {
    .steps-flow {
        flex-direction: column;
        gap: 60px;
    }

    .flow-path {
        transform: rotate(90deg);
        height: 60px;
    }
}

/* What's Included - Simplified Sub-Hero */
.included-hero {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 80px !important;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.included-hero-visual {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
    position: relative;
}

.mini-node-cluster {
    position: relative;
    width: 100%;
    height: 100%;
    animation: cell-float 5s ease-in-out infinite;
}

.mini-node {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--accent-glow);
    z-index: 2;
    transform: translate(-50%, -50%);
}

.node-doc-center {
    width: 85px;
    height: 85px;
    font-size: 2.8rem;
    left: 100px;
    top: 100px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--accent-primary);
}

.node-brain {
    width: 55px;
    height: 55px;
    font-size: 1.8rem;
    left: 40px;
    top: 40px;
}

.node-bulb {
    width: 55px;
    height: 55px;
    font-size: 1.8rem;
    left: 160px;
    top: 40px;
}

.node-note {
    width: 50px;
    height: 50px;
    font-size: 1.6rem;
    left: 50px;
    top: 160px;
}

.mini-connections {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.mini-line {
    stroke: var(--accent-primary);
    stroke-width: 2;
    stroke-opacity: 0.3;
    stroke-dasharray: 4 4;
}

.included-hero-content {
    text-align: left;
}

.included-hero-content h3 {
    font-size: 2rem;
    margin-bottom: 16px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.included-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.mini-features {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.pill {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.pill:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
    transform: translateY(-2px);
}

@media (max-width: 850px) {
    .included-hero {
        flex-direction: column;
        padding: 60px 40px !important;
        text-align: center;
    }

    .included-hero-visual {
        margin-bottom: 40px;
    }

    .included-hero-content {
        text-align: center;
    }

    .mini-features {
        justify-content: center;
    }
}

/* Pricing */
.pricing {
    text-align: center;
}

.pricing-card {
    max-width: 450px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    background-image: var(--glass-bg);
    border: 2px solid var(--accent-primary);
    border-radius: 24px;
    padding: 48px;
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 0 60px var(--accent-glow);
}

.pricing-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 24px;
}

.pricing-amount {
    margin-bottom: 12px;
}

.limited-tag {
    background-color: #2a0a0a;
    /* Darker red-tinted background for contrast compliance */
    background-image: linear-gradient(rgba(255, 0, 0, 0.1), rgba(255, 0, 0, 0.1));
    border: 1px solid rgba(255, 0, 0, 0.4);
    color: #ffffff;
    /* Absolute maximum contrast boosted for accessibility */
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 32px;
}

.currency {
    font-size: 2rem;
    vertical-align: top;
    margin-right: 4px;
}

.price {
    font-size: 5rem;
    font-weight: var(--font-weight-extrabold);
    line-height: 1;
}

.period {
    display: block;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-note {
    background-color: var(--bg-primary);
    /* Explicit bg for contrast calc */
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background-color: var(--bg-primary);
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo-icon,
.footer-brand .logo-text {
    display: inline;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-top: 12px;
}

.footer-community h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.footer-community p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.footer-bottom {
    background-color: var(--bg-primary);
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-subtle);
    color: #f0f0f5;
    /* Primary text for footer for high contrast */
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }

    .hero-visual {
        display: none;
    }

    .step-arrow {
        display: none;
    }

    .included-card.main {
        grid-column: span 1;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }

    .btn {
        width: 100%;
    }

    .pricing-card {
        padding: 32px 24px;
    }

    .price {
        font-size: 4rem;
    }
}