:root {
    --dark-bg: #121212;
    --primary-surface: #1E1E1E;
    --secondary-surface: #2a2a2a;
    --text-color: #EAEAEA;
    --text-muted: #999;
    --accent-color: #00bcd4; /* Cyan */
    --font-family: 'Poppins', sans-serif;

    --color-good: #4CAF50; /* Green */
    --color-bad: #F44336; /* Red */
    --color-neutral: #2196F3; /* Blue */
    --color-defense: #9C27B0; /* Purple */
    --color-data: #FFC107; /* Amber */
    --color-warning: #FF9800; /* Orange */
}

/* --- General Styles --- */
body {
    background-color: var(--dark-bg);
    color: var(--text-color);
    font-family: var(--font-family);
    margin: 0;
    display: flex;
    justify-content: center;  /* FIX 1: Allows page to grow taller than the screen */
    overflow-y: auto;   /* Shows vertical scrollbar ONLY when needed */
}

/* --- Find this existing rule --- */
.container {
    width: 95vw;
    max-width: 1400px;
    /* CHANGE THIS: from height to min-height to allow it to grow */
    min-height: 95vh;
    background-color: var(--primary-surface);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
}

header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--secondary-surface);
    text-align: center;
    position: relative;
}

header h1 {
    margin: 0;
    font-weight: 600;
    color: var(--accent-color);
}

.back-link {
    position: absolute;
    top: 25px;
    left: 30px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}
.back-link:hover { color: var(--accent-color); }

nav#sub-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

nav#sub-nav button {
    background-color: var(--secondary-surface);
    color: var(--text-color);
    border: 1px solid #444;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 14px;
    transition: background-color 0.3s, transform 0.2s;
}

nav#sub-nav button:hover, nav#sub-nav button.active {
    background-color: var(--accent-color);
    color: var(--dark-bg);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    min-height: 0;
}

#animation-canvas {
    flex-grow: 1;
    background-color: var(--dark-bg);
    border: 1px solid var(--secondary-surface);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

#explanation-box {
    height: 80px;
    background-color: var(--secondary-surface);
    border-radius: 10px;
    padding: 15px 20px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-muted);
    overflow-y: auto;
    text-align: center;
}


/* --- Welcome Page Styles --- */
.welcome-container { justify-content: center; text-align: center; }
.welcome-main {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 40px;
    /* ADD THIS: Allows cards to wrap onto the next line */
    flex-wrap: wrap;
}
.subtitle { font-size: 1.2rem; color: var(--text-muted); margin-top: 10px; }
.topic-card {
    background: var(--secondary-surface);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #444;
    text-decoration: none;
    color: var(--text-color);
    width: 250px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.topic-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 15px 30px rgba(0, 188, 212, 0.2);
}
.topic-card h2 { margin-top: 0; color: var(--accent-color); }
.topic-card p { color: var(--text-muted); }


/* --- Animation Element Styles --- */
.node, .attacker, .packet, .firewall, .server, .dns, .database, .pc, .layer, .callout {
    position: absolute;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    padding: 5px 10px;
    color: #fff;
    white-space: pre;
    text-align: center;
}

.pc { width: 80px; height: 60px; background-color: var(--color-neutral); border: 2px solid #64b5f6; }
.server { width: 60px; height: 80px; background-color: #555; border: 2px solid #888; }
.packet { width: 25px; height: 25px; background-color: var(--color-data); border-radius: 50%; padding: 0; }
.attacker { width: 50px; height: 50px; background-color: var(--color-bad); border-radius: 50%; border: 2px solid #ef5350; }
.layer { background-color: var(--secondary-surface); border: 1px solid #444; width: 120px; }
.callout { background-color: rgba(0,0,0,0.7); border: 1px solid var(--accent-color); color: var(--accent-color); }
.https-tunnel { position: absolute; background: linear-gradient(90deg, rgba(0,188,212,0), rgba(0,188,212,0.3), rgba(0,188,212,0)); border-radius: 50px; }
.terminal {
    position: absolute; top: 5%; left: 5%; right: 5%; bottom: 5%;
    background-color: #0d0d0d; border-radius: 8px; border: 1px solid #333;
    padding: 20px; font-family: 'Consolas', 'Courier New', monospace; font-size: 16px;
    color: #00ff00; white-space: pre-wrap; overflow-y: auto; opacity: 0;
}
.malicious-text { color: var(--color-bad); font-weight: bold; background-color: rgba(244, 67, 54, 0.2); }

/* --- Add these new styles to public/css/style.css --- */

.packet-detailed {
    width: 200px;
    height: auto;
    background-color: var(--secondary-surface);
    border: 2px solid var(--color-neutral);
    border-radius: 8px;
    padding: 0;
    flex-direction: column;
    align-items: stretch; /* Make children fill width */
    font-size: 13px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.6);
}

.packet-title {
    background-color: var(--color-neutral);
    color: #fff;
    padding: 5px;
    font-weight: 600;
    text-align: center;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}

.packet-body {
    padding: 10px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-muted);
}

.packet-body strong {
    color: var(--text-color);
}

/* --- ADD THESE NEW STYLES TO THE END of public/css/style.css --- */

/* CIA Triad Styles */
.cia-circle {
    position: absolute;
    width: 350px;
    height: 350px;
    border: 5px solid var(--secondary-surface);
    border-radius: 50%;
}
.cia-label {
    position: absolute;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-muted);
}
.cia-icon {
    position: absolute;
    font-size: 48px;
    opacity: 0;
}
.encryption-ring {
    position: absolute;
    border-radius: 50%;
    border: 3px solid var(--color-defense);
    box-shadow: 0 0 20px var(--color-defense);
}
.ddos-packet {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: var(--color-bad);
    border-radius: 50%;
}

/* Kill Chain & Defense Styles */
.timeline-bar {
    position: absolute;
    bottom: 20px;
    left: 5%;
    width: 90%;
    height: 40px;
    background-color: var(--secondary-surface);
    border-radius: 8px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.timeline-step {
    color: var(--text-muted);
    font-size: 13px;
    transition: color 0.5s, transform 0.3s;
}
.timeline-step.active {
    color: var(--color-bad);
    font-weight: 600;
    transform: scale(1.1);
}
.packet-tracer-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: var(--color-warning);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-warning);
}
.c2-heartbeat {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--color-bad);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-bad);
}
.data-packet {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: var(--color-data);
    border-radius: 3px;
}
.siem-alert {
    position: absolute;
    width: 180px;
    height: 70px;
    background-color: var(--color-bad);
    border: 3px solid #fff;
    border-radius: 10px;
    color: #fff;
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    padding-top: 15px;
    box-shadow: 0 0 30px var(--color-bad);
}
.nist-circle {
    position: absolute;
    width: 150px;
    height: 150px;
    border: 4px solid var(--text-muted);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    transition: border-color 0.5s, box-shadow 0.5s;
}

/* --- ADD THESE NEW STYLES to public/css/style.css for the ADVANCED Kill Chain --- */

/* General Elements for this scene */
.attacker-terminal {
    position: absolute;
    background-color: #0d0d0d;
    border: 1px solid var(--accent-color);
    border-radius: 5px;
    padding: 10px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 11px;
    color: var(--accent-color);
    white-space: pre;
}

.scan-packet {
    position: absolute;
    width: 20px;
    height: 4px;
    background-color: var(--color-warning);
    border-radius: 2px;
}

.info-bubble {
    position: absolute;
    background-color: var(--secondary-surface);
    border: 1px solid var(--color-neutral);
    padding: 5px 8px;
    border-radius: 5px;
    font-size: 11px;
}

.code-line {
    position: absolute;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    color: var(--color-good);
}

.email-client {
    position: absolute;
    background-color: #2d3748;
    border-radius: 8px;
    border: 1px solid #4a5568;
    overflow: hidden;
}
.email-header {
    background-color: #1a202c;
    padding: 8px;
    font-size: 12px;
    font-weight: 600;
}
.email-body {
    padding: 10px;
    font-size: 12px;
}
.email-attachment {
    background-color: #4a5568;
    padding: 5px;
    margin-top: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.email-attachment:hover {
    background-color: var(--color-bad);
}

.memory-bar {
    position: absolute;
    height: 30px;
    background-color: var(--secondary-surface);
    border: 1px solid #444;
    display: flex;
}
.memory-segment {
    height: 100%;
    background-color: var(--color-neutral);
}
.memory-exploit-code {
    height: 100%;
    background: repeating-linear-gradient(45deg, var(--color-bad), var(--color-bad) 5px, var(--color-warning) 5px, var(--color-warning) 10px);
}

.filesystem, .registry {
    position: absolute;
    font-family: 'Courier New', Courier, monospace;
    font-size: 11px;
    background-color: var(--secondary-surface);
    border-radius: 5px;
    padding: 10px;
}

.c2-path {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: dash 5s linear infinite;
}
@keyframes dash {
    to {
        stroke-dashoffset: 0;
    }
}

.zip-file {
    font-size: 32px;
}

/* --- ADD THESE ADVANCED STYLES for threat.html --- */
.data-source {
    width: 100px;
    height: 80px;
    border: 2px solid;
    flex-direction: column;
    padding: 5px;
}
.siem-console-adv {
    width: 200px;
    height: 120px;
    background-color: var(--secondary-surface);
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(0, 188, 212, 0.3);
}
.data-flow-packet {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}
.alert-box-adv {
    position: absolute;
    background-color: #333;
    border-left: 5px solid var(--color-warning);
    border-radius: 5px;
    padding: 15px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-color);
    width: 280px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.6);
}
.enrichment-service {
    width: 90px;
    height: 40px;
    border: 1px dashed var(--text-muted);
}
.evidence-node {
    font-size: 11px;
    background-color: var(--secondary-surface);
    border: 1px solid var(--color-neutral);
    padding: 8px;
}
.containment-wall {
    position: absolute;
    border: 3px dashed var(--color-warning);
    border-radius: 15px;
    box-shadow: 0 0 20px var(--color-warning);
}
.process-node {
    position: absolute;
    font-size: 12px;
    background-color: #333;
    padding: 5px 10px;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
}
.golden-image {
    font-size: 50px;
    color: var(--color-good);
}

.defender-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-neutral);
    border: 3px solid #64b5f6;
    border-radius: 50%;
    font-size: 28px;
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.5);
}

.vulnerability-dot {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--color-bad);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--color-bad);
}

.task-list {
    position: absolute;
    background-color: var(--secondary-surface);
    border-left: 4px solid var(--color-neutral);
    padding: 15px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-muted);
}

.task-list-item {
    opacity: 0.5;
    transition: opacity 0.5s, color 0.5s;
}
.task-list-item.active {
    opacity: 1;
    color: var(--text-color);
    font-weight: bold;
}

.report-icon {
    font-size: 48px;
    color: var(--color-data);
}

.patch-icon {
    font-size: 24px;
    color: var(--color-good);
}

.perimeter-wall {
    position: absolute;
    border: 4px dashed var(--secondary-surface);
    border-radius: 10px;
}

/* --- ADD THESE ADVANCED STYLES for redblue.html --- */

/* Scene Elements */
.corp-network {
    position: absolute;
    border: 2px dashed var(--secondary-surface);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-muted);
    justify-content: flex-start; /* Aligns text to top-left */
    align-items: flex-start;
    padding: 10px;
}

.scan-line {
    position: absolute;
    width: 2px;
    background: linear-gradient(var(--dark-bg), var(--color-warning), var(--dark-bg));
}

.c2-beacon {
    position: absolute;
    width: 8px; height: 8px;
    background-color: var(--color-bad);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-bad);
}

.siem-console-rb {
    position: absolute;
    width: 220px; height: 140px;
    background-color: var(--secondary-surface);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 10px;
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: var(--text-muted);
}

.analyst-icon-rb {
    width: 50px; height: 50px;
    font-size: 24px;
    border: 2px solid var(--color-neutral);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--color-neutral);
}

.action-item {
    padding: 8px 12px;
    border-radius: 5px;
    background-color: var(--secondary-surface);
    border: 1px solid #444;
}

.report-document {
    background-color: #333;
    border: 1px solid var(--color-data);
    width: 150px;
    height: 180px;
    padding: 10px;
    flex-direction: column;
    align-items: flex-start;
}

.report-document h3 {
    margin: 0 0 10px 0; color: var(--color-data); font-size: 14px;
}

.report-document p {
    font-size: 11px; color: var(--text-muted); line-height: 1.6;
}

/* --- ADD THESE REDESIGNED & ADVANCED STYLES for ir.html --- */

/* Scene: Intro Timeline */
.ir-timeline-bar {
    position: absolute;
    bottom: 50px;
    left: 5%;
    width: 90%;
    height: 4px;
    background-color: var(--secondary-surface); /* Consistent surface color */
    border-radius: 2px;
}

.ir-timeline-node {
    position: absolute;
    width: 20px; height: 20px;
    border: 3px solid var(--secondary-surface); /* Use consistent color */
    border-radius: 50%;
    background-color: var(--dark-bg);
    cursor: pointer;
    transition: border-color 0.5s, transform 0.3s; /* Smooth transitions */
}
.ir-timeline-node .label {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.5s; /* Smooth fade-in */
}
.ir-timeline-node.active .label { opacity: 1; color: var(--text-color); }


/* Scene: Creating the Plan */
.ir-plan-doc {
    background-color: var(--secondary-surface);
    border: 1px solid #444; /* Consistent border */
    border-radius: 12px;      /* Consistent rounding */
    box-shadow: 0 10px 30px rgba(0,0,0,0.5); /* Consistent shadow */
    width: 200px; height: 240px;
    padding: 15px;
    flex-direction: column;
    align-items: flex-start;
    transition: border-color 0.5s;
}
.ir-plan-doc:hover { border-color: var(--accent-color); }
.ir-plan-doc h3 { font-size: 16px; margin-bottom: 10px; color: var(--accent-color); }
.ir-plan-doc p { font-size: 12px; line-height: 1.8; opacity: 0; color: var(--text-muted); }


.ir-foundation-node {
    background: var(--secondary-surface);
    border: 1px solid #444; /* Match card styles */
    border-radius: 8px;     /* Match button styles */
    box-shadow: 0 4px 15px rgba(0,0,0,0.5); /* Consistent node shadow */
    font-size: 14px;
    padding: 10px 15px;
    transition: transform 0.3s, border-color 0.3s;
}
.ir-foundation-node:hover { transform: translateY(-5px); border-color: var(--accent-color); }


/* Scene: The IR Life Cycle */
.lifecycle-ring {
    position: absolute;
    width: 400px; height: 400px;
    border: 3px solid var(--secondary-surface); /* Solid, not dashed */
    border-radius: 50%;
}

.lifecycle-phase {
    position: absolute;
    width: 100px;
    padding: 8px 0;
    font-size: 14px;
    background-color: var(--dark-bg);
    border: 2px solid var(--secondary-surface); /* Start with default color */
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5); /* Consistent node shadow */
    transition: transform 0.3s, border-color 0.5s, box-shadow 0.5s;
}
.lifecycle-phase:hover {
    transform: scale(1.05);
    border-color: var(--accent-color);
}

/* Scene: Handling an Incident */
.log-source-node {
    width: 130px;
    border: 1px solid var(--secondary-surface); /* Professional border */
    background-color: var(--primary-surface); /* Slightly darker */
    box-shadow: 0 4px 15px rgba(0,0,0,0.5); /* Consistent shadow */
    border-radius: 8px; /* Consistent rounding */
}
.log-packet-ir {
    font-family: 'Courier New', monospace;
    font-size: 10px;
    padding: 2px 4px;
    background-color: var(--secondary-surface);
    border: 1px solid #444; /* Add a subtle border */
    border-radius: 3px;
    color: var(--text-muted);
    position: absolute;
}

.evidence-board {
    width: 320px;
    height: 220px;
    border: 2px solid var(--color-warning); /* Make border stronger */
    box-shadow: 0 0 30px rgba(255, 152, 0, 0.3); /* Add glowing shadow */
    background-color: var(--dark-bg); /* Use theme background */
    border-radius: 10px; /* Consistent rounding */
    padding: 15px;
}
.evidence-board h3 { color: var(--color-warning); margin-bottom: 10px; }
.evidence-board p { font-family: 'Courier New', monospace; color: var(--text-muted); }

/* Scene: Post-Incident Activity */
.lesson-learned-node {
    background-color: var(--color-good);
    color: var(--dark-bg); /* High contrast */
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 25px rgba(76, 175, 80, 0.4); /* Glowing green shadow */
    border: 2px solid #fff;
}


/* Scene: IR in the Cloud */
.responsibility-stack {
    width: 200px;
    display: flex;
    flex-direction: column-reverse; /* Stack from bottom up */
    border: 1px solid var(--secondary-surface); /* Professional border */
    background-color: var(--dark-bg);
    border-radius: 12px; /* Consistent rounding */
    box-shadow: 0 10px 30px rgba(0,0,0,0.5); /* Consistent shadow */
    overflow: hidden; /* Important for border-radius */
}
.responsibility-stack strong {
    color: var(--accent-color);
    padding: 10px;
    text-align: center;
}

.responsibility-block {
    width: 100%;
    padding: 5px 0;
    font-size: 12px; /* Make text slightly larger */
    text-align: center;
    border-top: 1px solid var(--secondary-surface); /* Consistent border */
    transition: background-color 0.5s ease-in-out; /* Slower transition */
}
.provider-resp { background-color: var(--color-neutral); color: #fff; }
.customer-resp { background-color: var(--color-data); color: #121212; }