/**
 * roadmap.css - Roadmap Diagram & Layout
 *
 * Styles for the main roadmap visualization including
 * the SVG nodes, connecting edges, and section headers.
 */

/* -----------------------------------------------------------------------------
 * Page Layout
 * -------------------------------------------------------------------------- */

.roadmap-page {
    position: relative;
    min-height: 100vh;
}

/* -----------------------------------------------------------------------------
 * Background Decorations
 * -------------------------------------------------------------------------- */

.bg-decorations {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: var(--z-background);
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 600px;
    background: var(--gradient-glow-orange);
    border-radius: 50%;
    filter: blur(120px);
}

.noise-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><filter id="noiseFilter"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="4" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23noiseFilter)"/></svg>');
}

/* -----------------------------------------------------------------------------
 * Main Content
 * -------------------------------------------------------------------------- */

.main-content {
    position: relative;
    z-index: var(--z-base);
    padding-top: 8rem;
    padding-bottom: 8rem;
}

.roadmap-container {
    max-width: 120rem;
    margin: 0 auto;
    padding: 0 var(--space-4);
    overflow-x: auto;
}

/* -----------------------------------------------------------------------------
 * Roadmap Header
 * -------------------------------------------------------------------------- */

.roadmap-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.roadmap-header h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(234, 88, 12, 0.5);
    margin: 0 0 var(--space-3) 0;
    letter-spacing: -0.025em;
}

.roadmap-subtitle {
    font-size: 1.25rem;
    color: var(--slate-400);
    margin: 0;
}

/* -----------------------------------------------------------------------------
 * SVG Diagram
 * -------------------------------------------------------------------------- */

.roadmap-diagram {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
}

/* -----------------------------------------------------------------------------
 * Section Headers
 * -------------------------------------------------------------------------- */

.section-header-group {
    cursor: default;
}

.section-badge-bg {
    fill: rgba(0, 0, 0, 0.4);
    stroke: var(--slate-700);
    stroke-width: 1;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
}

.section-icon {
    color: var(--orange-500);
}

.section-title {
    fill: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    font-family: "JetBrains Mono", monospace;
}

/* -----------------------------------------------------------------------------
 * Roadmap Nodes
 * -------------------------------------------------------------------------- */

.roadmap-node {
    cursor: pointer;
    transition: all var(--transition-slow);
}

.roadmap-node .node-rect {
    stroke-width: 2;
    rx: 8px;
    transition: all var(--transition-base);
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.5));
}

.roadmap-node .node-text {
    font-size: 0.85rem;
    pointer-events: none;
    text-anchor: middle;
    dominant-baseline: middle;
    font-family: "JetBrains Mono", monospace;
    font-weight: 500;
}

/* -----------------------------------------------------------------------------
 * Main Topic Nodes
 * -------------------------------------------------------------------------- */

.type-main .node-rect {
    fill: var(--bg-secondary);
    stroke: var(--orange-600);
    filter: drop-shadow(0 0 10px rgba(234, 88, 12, 0.4));
}

.type-main .node-text {
    fill: var(--text-primary);
    font-weight: 700;
    font-size: 0.95rem;
}

/* -----------------------------------------------------------------------------
 * Sub Topic Nodes
 * -------------------------------------------------------------------------- */

.type-sub .node-rect {
    fill: rgba(26, 26, 26, 0.4);
    stroke: var(--slate-700);
    stroke-width: 1.5;
}

.type-sub .node-text {
    fill: var(--text-secondary);
    font-weight: 500;
}

/* -----------------------------------------------------------------------------
 * Node Hover State
 * -------------------------------------------------------------------------- */

.roadmap-node:hover .node-rect {
    fill: var(--bg-card-hover);
    stroke: var(--text-primary);
    filter: drop-shadow(0 0 15px rgba(234, 88, 12, 0.8));
    transform: translateY(-1px);
}

.roadmap-node:hover .node-text {
    fill: var(--text-primary);
}

/* -----------------------------------------------------------------------------
 * Node Highlighted State (Search Match)
 * Using stronger selectors to override base styles without !important
 * -------------------------------------------------------------------------- */

.roadmap-node.node-highlighted .node-rect {
    stroke: var(--orange-500);
    stroke-width: 3;
    filter: drop-shadow(0 0 20px rgba(234, 88, 12, 0.9));
    animation: highlight-pulse 1.5s ease-in-out infinite;
}

.roadmap-node.node-highlighted .node-text {
    fill: var(--text-primary);
    font-weight: 700;
}

/* Override type-specific styles for highlighted nodes */
.roadmap-node.node-highlighted.type-main .node-rect,
.roadmap-node.node-highlighted.type-sub .node-rect {
    stroke: var(--orange-500);
    stroke-width: 3;
    filter: drop-shadow(0 0 20px rgba(234, 88, 12, 0.9));
}

.roadmap-node.node-highlighted.type-sub .node-text {
    fill: var(--text-primary);
    font-weight: 700;
}

@keyframes highlight-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 15px rgba(234, 88, 12, 0.8));
    }
    50% {
        filter: drop-shadow(0 0 25px rgba(234, 88, 12, 1));
    }
}

/* -----------------------------------------------------------------------------
 * Connector Dots
 * -------------------------------------------------------------------------- */

.connector-dot {
    fill: var(--slate-600);
    transition: fill var(--transition-base);
}

.roadmap-node:hover .connector-dot {
    fill: var(--orange-400);
}

/* -----------------------------------------------------------------------------
 * Edges
 * -------------------------------------------------------------------------- */

.roadmap-edge {
    stroke: var(--slate-700);
    stroke-width: 2;
    fill: none;
    transition: stroke var(--transition-base);
}

.edge-cross-section {
    stroke: var(--orange-600);
    stroke-dasharray: 4, 4;
    opacity: 0.8;
}

.arrowhead-fill {
    fill: var(--orange-600);
}

/* -----------------------------------------------------------------------------
 * Roadmap End Marker
 * -------------------------------------------------------------------------- */

.roadmap-end {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: var(--space-24);
    color: var(--slate-600);
}

.roadmap-end__line {
    width: 1px;
    height: 3rem;
    background: linear-gradient(to bottom, var(--slate-700), transparent);
}

.roadmap-end__marker {
    padding: var(--space-4);
    border: 1px dashed var(--slate-800);
    border-radius: var(--radius-md);
    font-family: "JetBrains Mono", monospace;
    font-size: 0.875rem;
    margin-bottom: var(--space-4);
}

.roadmap-end__text {
    font-size: 0.75rem;
}

/* -----------------------------------------------------------------------------
 * Level Badges
 * -------------------------------------------------------------------------- */

.level-badge {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.level-beginner {
    fill: #4ade80;
}

.level-intermediate {
    fill: #fbbf24;
}

.level-advanced {
    fill: #f87171;
}

/* -----------------------------------------------------------------------------
 * Responsive
 * -------------------------------------------------------------------------- */

@media (max-width: 768px) {
    .main-content {
        padding-top: 6rem;
    }

    .roadmap-header h1 {
        font-size: 2rem;
    }

    .roadmap-subtitle {
        font-size: 1rem;
    }

    .roadmap-node .node-text {
        font-size: 0.625rem;
    }
}

@media (max-width: 640px) {
    .roadmap-container {
        padding: 0 var(--space-2);
    }
}