/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Source+Code+Pro:wght@300;400;500;700&display=swap');

/* CSS Variables */
:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #111111;
    --terminal-bg: #0d1117;
    --accent-green: #00ff41;
    --accent-red: #ff0040;
    --accent-yellow: #ffff00;
    --text-primary: #00ff41;
    --text-secondary: #ffffff;
    --text-muted: #666666;
    --border-color: #333333;
    --success-color: #00ff00;
    --error-color: #ff0000;
    --warning-color: #ffaa00;
}

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

body {
    font-family: 'Source Code Pro', monospace;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Matrix Background */
.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.1;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        var(--accent-green) 2px,
        var(--accent-green) 4px
    );
    animation: matrix-scroll 20s linear infinite;
}

@keyframes matrix-scroll {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

/* Terminal Container */
.terminal-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--terminal-bg);
    border: 2px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 
        0 0 20px var(--accent-green),
        inset 0 0 20px rgba(0, 255, 65, 0.1);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Terminal Header */
.terminal-header {
    background: var(--secondary-bg);
    padding: 10px 20px;
    border-bottom: 1px solid var(--accent-green);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-title {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.terminal-controls {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: var(--accent-red); }
.dot.yellow { background: var(--accent-yellow); }
.dot.green { background: var(--accent-green); }

/* Terminal Content */
.terminal-content {
    flex: 1;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login Form Styles */
.login-form, .register-form {
    max-width: 600px;
    width: 100%;
}

.ascii-art {
    text-align: center;
    margin-bottom: 40px;
}

.ascii-art pre {
    color: var(--accent-green);
    font-size: 8px;
    line-height: 1;
    text-shadow: 0 0 10px var(--accent-green);
}

.login-prompt, .register-prompt {
    margin-bottom: 30px;
}

.prompt {
    color: var(--accent-green);
    font-weight: 500;
}

.typing-text {
    animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--accent-green);
    width: 0;
    animation-fill-mode: forwards;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-green); }
}

/* Form Styles */

.input-group {
    margin-bottom: 20px;
}

.terminal-label {
    display: block;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 14px;
}

.terminal-input {
    width: 100%;
    background: var(--primary-bg);
    border: 1px solid var(--accent-green);
    color: var(--text-primary);
    padding: 12px 16px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    border-radius: 4px;
    outline: none;
    transition: all 0.3s ease;
}

.terminal-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
    background: rgba(0, 255, 65, 0.05);
}

.terminal-button, .purchase-button {
    width: 100%;
    background: transparent;
    border: 2px solid var(--accent-green);
    color: var(--accent-green);
    padding: 15px 20px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.terminal-button:hover, .purchase-button:hover {
    background: var(--accent-green);
    color: var(--primary-bg);
    box-shadow: 0 0 20px var(--accent-green);
    transform: translateY(-2px);
}

.register-link, .login-link {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
}

.link-green {
    color: var(--accent-green);
    text-decoration: none;
    transition: all 0.3s ease;
}

.link-green:hover {
    text-shadow: 0 0 5px var(--accent-green);
}

/* Terminal Footer */
.terminal-footer {
    background: var(--secondary-bg);
    padding: 15px 20px;
    border-top: 1px solid var(--accent-green);
    text-align: center;
}

.system-info {
    color: var(--text-muted);
    font-size: 12px;
}

/* Glitch Effects */
.glitch {
    position: relative;
    color: var(--accent-green);
    animation: glitch 2s infinite;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    animation: glitch-1 0.5s infinite;
    color: var(--accent-red);
    z-index: -1;
}

.glitch::after {
    animation: glitch-2 0.5s infinite;
    color: var(--accent-yellow);
    z-index: -2;
}

@keyframes glitch {
    0%, 14%, 15%, 49%, 50%, 99%, 100% {
        transform: translate3d(0, 0, 0);
    }
    1%, 13% {
        transform: translate3d(-2px, 0, 0);
    }
    16%, 48% {
        transform: translate3d(2px, 0, 0);
    }
}

@keyframes glitch-1 {
    0%, 14%, 15%, 49%, 50%, 99%, 100% {
        transform: translate3d(0, 0, 0);
    }
    1%, 13% {
        transform: translate3d(2px, 0, 0);
    }
    16%, 48% {
        transform: translate3d(-2px, 0, 0);
    }
}

@keyframes glitch-2 {
    0%, 20%, 21%, 62%, 63%, 99%, 100% {
        transform: translate3d(0, 0, 0);
    }
    21%, 61% {
        transform: translate3d(-1px, 0, 0);
    }
    63%, 99% {
        transform: translate3d(1px, 0, 0);
    }
}

.glitch-text {
    animation: glitch-text 2s ease-in-out infinite alternate;
}

@keyframes glitch-text {
    0% {
        text-shadow: 0.4389924193300864px 0 1px var(--accent-red), -0.4389924193300864px 0 1px var(--accent-yellow), 0 0 3px;
    }
    5% {
        text-shadow: 2.7928974010788217px 0 1px var(--accent-red), -2.7928974010788217px 0 1px var(--accent-yellow), 0 0 3px;
    }
    10% {
        text-shadow: 0.02956275843481219px 0 1px var(--accent-red), -0.02956275843481219px 0 1px var(--accent-yellow), 0 0 3px;
    }
    15% {
        text-shadow: 0.40218538552878136px 0 1px var(--accent-red), -0.40218538552878136px 0 1px var(--accent-yellow), 0 0 3px;
    }
    20% {
        text-shadow: 3.4794037899852017px 0 1px var(--accent-red), -3.4794037899852017px 0 1px var(--accent-yellow), 0 0 3px;
    }
    25% {
        text-shadow: 1.6125630401149584px 0 1px var(--accent-red), -1.6125630401149584px 0 1px var(--accent-yellow), 0 0 3px;
    }
    30% {
        text-shadow: 0.7015590085143956px 0 1px var(--accent-red), -0.7015590085143956px 0 1px var(--accent-yellow), 0 0 3px;
    }
    35% {
        text-shadow: 3.896914047650351px 0 1px var(--accent-red), -3.896914047650351px 0 1px var(--accent-yellow), 0 0 3px;
    }
    40% {
        text-shadow: 3.870905614848819px 0 1px var(--accent-red), -3.870905614848819px 0 1px var(--accent-yellow), 0 0 3px;
    }
    45% {
        text-shadow: 2.231056963361899px 0 1px var(--accent-red), -2.231056963361899px 0 1px var(--accent-yellow), 0 0 3px;
    }
    50% {
        text-shadow: 0.08084290417898504px 0 1px var(--accent-red), -0.08084290417898504px 0 1px var(--accent-yellow), 0 0 3px;
    }
    55% {
        text-shadow: 2.3758461067427543px 0 1px var(--accent-red), -2.3758461067427543px 0 1px var(--accent-yellow), 0 0 3px;
    }
    60% {
        text-shadow: 2.202193051050636px 0 1px var(--accent-red), -2.202193051050636px 0 1px var(--accent-yellow), 0 0 3px;
    }
    65% {
        text-shadow: 2.8638780614874975px 0 1px var(--accent-red), -2.8638780614874975px 0 1px var(--accent-yellow), 0 0 3px;
    }
    70% {
        text-shadow: 0.48874025155497314px 0 1px var(--accent-red), -0.48874025155497314px 0 1px var(--accent-yellow), 0 0 3px;
    }
    75% {
        text-shadow: 1.8948491305757957px 0 1px var(--accent-red), -1.8948491305757957px 0 1px var(--accent-yellow), 0 0 3px;
    }
    80% {
        text-shadow: 0.0833037308038857px 0 1px var(--accent-red), -0.0833037308038857px 0 1px var(--accent-yellow), 0 0 3px;
    }
    85% {
        text-shadow: 0.09769827255241735px 0 1px var(--accent-red), -0.09769827255241735px 0 1px var(--accent-yellow), 0 0 3px;
    }
    90% {
        text-shadow: 3.443339761481782px 0 1px var(--accent-red), -3.443339761481782px 0 1px var(--accent-yellow), 0 0 3px;
    }
    95% {
        text-shadow: 2.1841838852799786px 0 1px var(--accent-red), -2.1841838852799786px 0 1px var(--accent-yellow), 0 0 3px;
    }
    100% {
        text-shadow: 2.6208764473832513px 0 1px var(--accent-red), -2.6208764473832513px 0 1px var(--accent-yellow), 0 0 3px;
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Main Page Styles */
.main-content {
    flex: 1;
    padding: 40px;
}

.command-bar {
    background: var(--secondary-bg);
    padding: 15px 20px;
    border: 1px solid var(--accent-green);
    border-radius: 4px;
    margin-bottom: 30px;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

/* Book Reader - Enhanced CIA Theme Styles */
.book-reader {
    max-width: 100%;
    padding: 30px;
    background: var(--terminal-bg);
    border: 2px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 
        0 0 30px rgba(0, 255, 65, 0.3),
        inset 0 0 30px rgba(0, 255, 65, 0.05);
    font-family: 'Source Code Pro', monospace;
    line-height: 1.8;
    overflow-x: auto;
}

/* CIA Document Headers with Glitch Effect */
.section-heading {
    color: var(--accent-red);
    font-weight: 700;
    font-size: 18px;
    margin: 25px 0 15px 0;
    padding: 10px 15px;
    background: rgba(255, 0, 64, 0.1);
    border-left: 4px solid var(--accent-red);
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: glitch-flicker 3s infinite;
    text-shadow: 
        0 0 5px var(--accent-red),
        0 0 10px var(--accent-red),
        0 0 15px var(--accent-red);
}

@keyframes glitch-flicker {
    0%, 98% { opacity: 1; }
    99% { opacity: 0.8; }
    100% { opacity: 1; }
}

/* Report Metadata with Enhanced Styling */
.report-meta {
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid var(--accent-green);
    padding: 15px;
    margin: 20px 0;
    border-radius: 6px;
    font-size: 12px;
    color: var(--accent-green);
    font-family: 'Source Code Pro', monospace;
    white-space: pre-line;
    box-shadow: inset 0 0 10px rgba(0, 255, 65, 0.1);
    animation: data-stream 0.3s ease-in;
}

@keyframes data-stream {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Warning Text with Intense Glitch */
.warning-text {
    color: var(--accent-red);
    background: rgba(255, 0, 64, 0.1);
    padding: 12px 16px;
    border: 2px solid var(--accent-red);
    border-radius: 6px;
    margin: 20px 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: warning-pulse 2s infinite, glitch-intense 4s infinite;
    box-shadow: 
        0 0 15px rgba(255, 0, 64, 0.5),
        inset 0 0 15px rgba(255, 0, 64, 0.1);
}

@keyframes warning-pulse {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 0, 64, 0.5); }
    50% { box-shadow: 0 0 25px rgba(255, 0, 64, 0.8); }
}

@keyframes glitch-intense {
    0%, 95% { transform: translateX(0); }
    96% { transform: translateX(-2px); }
    97% { transform: translateX(2px); }
    98% { transform: translateX(-1px); }
    99%, 100% { transform: translateX(0); }
}

/* Fatal Text - Special Glitch Effect */
.fatal-text {
    color: var(--accent-yellow);
    background: rgba(255, 255, 0, 0.1);
    padding: 15px;
    border: 2px solid var(--accent-yellow);
    border-radius: 6px;
    margin: 20px 0;
    font-weight: 700;
    text-transform: uppercase;
    text-align: center;
    animation: fatal-glitch 1.5s infinite;
    box-shadow: 
        0 0 20px rgba(255, 255, 0, 0.6),
        inset 0 0 20px rgba(255, 255, 0, 0.1);
}

@keyframes fatal-glitch {
    0%, 90% { 
        text-shadow: 2px 0 var(--accent-red), -2px 0 var(--accent-green);
        transform: scale(1);
    }
    91% { 
        text-shadow: 4px 0 var(--accent-red), -4px 0 var(--accent-green);
        transform: scale(1.02);
    }
    92% { 
        text-shadow: -4px 0 var(--accent-red), 4px 0 var(--accent-green);
        transform: scale(0.98);
    }
    93%, 100% { 
        text-shadow: 2px 0 var(--accent-red), -2px 0 var(--accent-green);
        transform: scale(1);
    }
}

/* Risk Highlights with Subtle Animation */
.risk-highlight {
    background: rgba(255, 170, 0, 0.1);
    border-left: 4px solid var(--warning-color);
    padding: 12px 15px;
    margin: 15px 0;
    border-radius: 0 4px 4px 0;
    color: var(--text-secondary);
    animation: risk-fade 0.5s ease-in;
}

@keyframes risk-fade {
    0% { opacity: 0; transform: translateX(-10px); }
    100% { opacity: 1; transform: translateX(0); }
}

/* CIA Notes with Typewriter Effect */
.cia-note, .footer-note {
    background: rgba(0, 255, 65, 0.05);
    border: 1px dashed var(--accent-green);
    padding: 15px;
    margin: 25px 0;
    border-radius: 4px;
    font-size: 11px;
    color: var(--accent-green);
    font-style: italic;
    position: relative;
    animation: typewriter-appear 1s ease-in;
}

@keyframes typewriter-appear {
    0% { 
        width: 0;
        opacity: 0;
        overflow: hidden;
    }
    1% {
        opacity: 1;
    }
    100% { 
        width: 100%;
        opacity: 1;
    }
}

.cia-note:before {
    content: "🕵️ ";
    color: var(--accent-yellow);
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.5; }
}

/* Character Analysis Pairs */
.analysis-pair {
    display: flex;
    margin: 15px 0;
    gap: 20px;
    padding: 12px;
    background: rgba(0, 255, 65, 0.03);
    border-radius: 6px;
    border: 1px solid rgba(0, 255, 65, 0.2);
}

.char-title {
    flex: 0 0 200px;
    color: var(--accent-red);
    font-weight: 600;
    font-size: 13px;
}

.char-analysis {
    flex: 1;
    color: var(--text-secondary);
    font-size: 13px;
}

/* Enhanced Tables */
.table-container {
    margin: 20px 0;
    overflow-x: auto;
    border: 1px solid var(--accent-green);
    border-radius: 6px;
    background: rgba(0, 255, 65, 0.02);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

thead tr {
    background: rgba(0, 255, 65, 0.1);
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 255, 65, 0.2);
    color: var(--text-secondary);
}

th {
    color: var(--accent-green);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Quote Styling with Enhanced Effects */
.quote {
    border-left: 4px solid var(--accent-yellow);
    padding: 15px 20px;
    margin: 20px 0;
    background: rgba(255, 255, 0, 0.05);
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
    animation: quote-glow 3s ease-in-out infinite alternate;
}

@keyframes quote-glow {
    0% { box-shadow: 0 0 5px rgba(255, 255, 0, 0.3); }
    100% { box-shadow: 0 0 15px rgba(255, 255, 0, 0.6); }
}

.quote:before {
    content: '"';
    font-size: 40px;
    color: var(--accent-yellow);
    position: absolute;
    left: -10px;
    top: -5px;
}

/* Definition Text Boxes */
.definition-text {
    background: rgba(0, 255, 65, 0.08);
    border: 2px solid var(--accent-green);
    padding: 18px;
    margin: 20px 0;
    border-radius: 8px;
    position: relative;
}

.definition-text:before {
    content: "📊 DEFINITION";
    position: absolute;
    top: -12px;
    left: 15px;
    background: var(--terminal-bg);
    color: var(--accent-green);
    padding: 0 10px;
    font-size: 11px;
    font-weight: 600;
}

/* Threat Formula Special Styling */
.threat-formula {
    background: linear-gradient(45deg, rgba(255, 0, 64, 0.1), rgba(255, 255, 0, 0.1));
    border: 2px solid var(--accent-red);
    padding: 20px;
    margin: 25px 0;
    border-radius: 8px;
    text-align: center;
    font-weight: 700;
    animation: threat-pulse 2s infinite;
}

@keyframes threat-pulse {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(255, 0, 64, 0.5);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 30px rgba(255, 0, 64, 0.8);
        transform: scale(1.02);
    }
}

/* Enhanced Lists */
ul, ol {
    margin: 15px 0;
    padding-left: 25px;
}

li {
    margin: 8px 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

li:before {
    content: "▶ ";
    color: var(--accent-green);
    font-weight: bold;
    margin-right: 5px;
}

ol li:before {
    content: none;
}

/* Enhanced Paragraphs */
p {
    margin: 15px 0;
    color: var(--text-secondary);
    text-align: justify;
}

/* Strong Text Enhancement */
strong {
    color: var(--accent-yellow);
    font-weight: 700;
    text-shadow: 0 0 3px var(--accent-yellow);
}

/* Horizontal Rules */
hr {
    border: none;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--accent-green), transparent);
    margin: 30px 0;
    animation: hr-glow 2s ease-in-out infinite alternate;
}

@keyframes hr-glow {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
}

.book-showcase {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.book-info {
    background: var(--secondary-bg);
    padding: 30px;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
}

.book-header {
    text-align: center;
    margin-bottom: 30px;
}

.book-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    text-shadow: 0 0 20px var(--accent-green);
}

.book-header h2.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.8;
}

.classification {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.classified-tag, .level-tag {
    background: var(--accent-red);
    color: var(--text-secondary);
    padding: 5px 15px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
}

.level-tag {
    background: var(--accent-yellow);
    color: var(--primary-bg);
}

.book-description {
    margin-bottom: 30px;
}

.ascii-book pre {
    color: var(--accent-green);
    font-size: 10px;
    text-align: center;
    margin-bottom: 20px;
    text-shadow: 0 0 10px var(--accent-green);
}

.description-text p {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.feature-list {
    list-style: none;
    margin-left: 0;
}

.feature-list li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.purchase-section {
    text-align: center;
    padding: 30px;
    background: var(--primary-bg);
    border: 2px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
}

.price-display {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 2rem;
    font-weight: 700;
}

.currency, .usd {
    color: var(--text-secondary);
    font-size: 1.5rem;
}

.price {
    color: var(--accent-green);
    margin: 0 10px;
    text-shadow: 0 0 10px var(--accent-green);
}

.payment-methods {
    margin-top: 15px;
    font-size: 12px;
    color: var(--text-muted);
}

.payment-icons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 5px;
}

.payment-method {
    background: var(--accent-green);
    color: var(--primary-bg);
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 500;
}

.system-status {
    background: var(--secondary-bg);
    padding: 20px;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.status-header {
    margin-bottom: 15px;
    text-align: center;
    color: var(--accent-green);
    font-weight: 500;
}

.status-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 12px;
}

.status-label {
    color: var(--text-muted);
}

.status-value {
    color: var(--text-secondary);
}

.status-value.green {
    color: var(--success-color);
}

.status-value.yellow {
    color: var(--warning-color);
}

.footer-commands {
    color: var(--text-muted);
    font-size: 12px;
}

.command {
    color: var(--accent-green);
    cursor: pointer;
    transition: all 0.3s ease;
}

.command:hover {
    text-shadow: 0 0 5px var(--accent-green);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--terminal-bg);
    border: 2px solid var(--accent-green);
    border-radius: 8px;
    padding: 0;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 0 30px var(--accent-green);
}

.modal-header {
    background: var(--secondary-bg);
    padding: 15px 20px;
    border-bottom: 1px solid var(--accent-green);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close-btn {
    background: none;
    border: none;
    color: var(--accent-red);
    font-size: 24px;
    cursor: pointer;
    font-family: 'Source Code Pro', monospace;
}

.modal-body {
    padding: 30px;
}

.payment-info {
    margin-bottom: 25px;
    background: var(--primary-bg);
    padding: 15px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.payment-info p {
    margin-bottom: 5px;
    font-size: 12px;
    color: var(--text-secondary);
}

.input-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 15px;
}

/* Reader Page Styles */
.reader-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    min-height: 100vh;
    background: var(--terminal-bg);
    overflow-x: hidden;
    word-wrap: break-word;
}

.sidebar {
    background: var(--secondary-bg);
    border-right: 2px solid var(--accent-green);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--accent-green);
}

.sidebar-header h3 {
    margin-bottom: 10px;
    text-align: center;
}

.file-info {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

.table-of-contents {
    flex: 1;
    padding: 20px 0;
}

.toc-item {
    padding: 12px 20px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toc-item:hover {
    background: rgba(0, 255, 65, 0.1);
    border-left-color: var(--accent-green);
}

.toc-item.active {
    background: rgba(0, 255, 65, 0.2);
    border-left-color: var(--accent-green);
}

.chapter-number {
    color: var(--accent-green);
    font-weight: 700;
    font-size: 12px;
    min-width: 25px;
}

.chapter-title {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.4;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--accent-green);
}

.progress-bar {
    background: var(--primary-bg);
    height: 6px;
    border-radius: 3px;
    margin-bottom: 10px;
    overflow: hidden;
}

.progress-fill {
    background: var(--accent-green);
    height: 100%;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--accent-green);
}

.reading-stats {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

.main-reader {
    display: flex;
    flex-direction: column;
    background: var(--terminal-bg);
    overflow-x: hidden;
    word-wrap: break-word;
}

.reader-header {
    background: var(--secondary-bg);
    padding: 15px 30px;
    border-bottom: 1px solid var(--accent-green);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.document-title {
    font-size: 14px;
}

.current-file {
    color: var(--accent-green);
    font-weight: 500;
}

.reader-controls {
    display: flex;
    gap: 10px;
}

.control-btn {
    background: transparent;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    padding: 5px 10px;
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.control-btn:hover {
    background: var(--accent-green);
    color: var(--primary-bg);
}

.document-content {
    flex: 1;
    padding: 40px 60px;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.content-header {
    margin-bottom: 30px;
}

.classification-banner {
    text-align: center;
    padding: 15px;
    background: var(--accent-red);
    border-radius: 4px;
    margin-bottom: 20px;
}

.classified-text {
    color: var(--text-secondary);
    font-size: 18px;
    font-weight: 700;
    margin-right: 20px;
}

.clearance-level {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
}

.chapter-content {
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 18px;
    max-width: 100%;
    width: 100%;
    padding: 20px 0;
    letter-spacing: 0.5px;
    margin: 0 auto;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.chapter-content h1, .chapter-content h2, .chapter-content h3, .chapter-content h4 {
    color: var(--accent-green);
    margin-top: 30px;
    margin-bottom: 15px;
    text-shadow: 0 0 10px var(--accent-green);
}

.chapter-content p {
    margin-bottom: 20px;
    text-align: left;
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.chapter-content ul, .chapter-content ol {
    margin-bottom: 15px;
    padding-left: 30px;
}

.chapter-content li {
    margin-bottom: 8px;
}

.chapter-content .section-heading {
    color: var(--accent-green);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 30px 0 15px 0;
    text-shadow: 0 0 10px var(--accent-green);
}

.chapter-content .report-meta {
    background: var(--primary-bg);
    padding: 15px;
    border-left: 3px solid var(--accent-green);
    margin: 20px 0;
    font-size: 12px;
    color: var(--text-muted);
}

.chapter-content .warning-text {
    background: rgba(255, 0, 64, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    padding: 15px;
    border-radius: 4px;
    margin: 20px 0;
}

.chapter-content .footer-note {
    background: var(--primary-bg);
    padding: 15px;
    border-top: 1px solid var(--accent-green);
    margin-top: 30px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

.navigation-controls {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    padding: 12px 20px;
    font-family: 'Source Code Pro', monospace;
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-btn:hover:not(:disabled) {
    background: var(--accent-green);
    color: var(--primary-bg);
}

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

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: var(--text-primary);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .terminal-container {
        margin: 10px;
        border-radius: 0;
        min-height: calc(100vh - 20px);
    }
    
    .terminal-content {
        padding: 20px;
    }
    
    .ascii-art pre {
        font-size: 6px;
    }
    
    .book-showcase {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .book-info {
        padding: 20px;
    }
    
    .book-header h1 {
        font-size: 1.8rem;
    }
    
    .classification {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .reader-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        left: -300px;
        width: 300px;
        height: 100vh;
        z-index: 1000;
        transition: left 0.3s ease;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-reader {
        grid-column: 1;
    }
    
    .document-content {
        padding: 20px;
    }
    
    .reader-header {
        padding: 15px 20px;
    }
    
    .input-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-body {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .ascii-art pre {
        font-size: 4px;
    }
    
    .book-header h1 {
        font-size: 1.5rem;
    }
    
    .price-display {
        font-size: 1.5rem;
    }
    
    .chapter-content {
        font-size: 14px;
    }
}

/* Payment Page Styles */
.payment-page {
    background: var(--primary-bg);
}

.payment-content {
    flex: 1;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
}

.payment-header {
    text-align: center;
    margin-bottom: 40px;
}

.payment-header h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-green);
    text-shadow: 0 0 20px var(--accent-green);
}

.order-summary {
    background: var(--secondary-bg);
    padding: 20px;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    margin-bottom: 30px;
}

.order-summary div {
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.stripe-form {
    background: var(--primary-bg);
    padding: 30px;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.1);
}

.payment-method-tabs {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 15px 20px;
    font-family: 'Source Code Pro', monospace;
    font-size: 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
}

.tab-btn:hover {
    color: var(--text-secondary);
}

.payment-method {
    display: none;
    background: var(--primary-bg) !important;
}

.payment-method.active {
    display: block;
    background: var(--primary-bg) !important;
}

/* Additional payment form styling fixes */
form.stripe-form {
    background: var(--primary-bg) !important;
}

.payment-content {
    background: var(--primary-bg) !important;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.stripe-element {
    background: #0a0a0a !important;
    border: 1px solid var(--accent-green) !important;
    border-radius: 4px !important;
    padding: 12px 16px !important;
    transition: all 0.3s ease;
    min-height: 48px !important;
    display: flex !important;
    align-items: center !important;
    position: relative;
}

.stripe-element iframe {
    background: transparent !important;
    min-height: 24px !important;
}

.stripe-element:focus-within {
    border-color: var(--accent-green) !important;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3) !important;
}

/* Stripe element containers with explicit IDs */
#card-number-element,
#card-expiry-element,
#card-cvc-element {
    background: #0a0a0a !important;
    border: 1px solid #00ff41 !important;
    border-radius: 4px !important;
    padding: 12px 16px !important;
    min-height: 48px !important;
    font-family: 'Source Code Pro', monospace !important;
    color: #00ff41 !important;
    position: relative !important;
}

/* Fallback for empty Stripe elements */
#card-number-element:empty::before {
    content: "1234 1234 1234 1234";
    color: #666666;
    font-family: 'Source Code Pro', monospace;
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    pointer-events: none;
}

#card-expiry-element:empty::before {
    content: "MM / YY";
    color: #666666;
    font-family: 'Source Code Pro', monospace;
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    pointer-events: none;
}

#card-cvc-element:empty::before {
    content: "CVC";
    color: #666666;
    font-family: 'Source Code Pro', monospace;
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    pointer-events: none;
}

.paypal-container {
    text-align: center;
    padding: 40px 20px;
}

.paypal-info {
    margin-bottom: 20px;
}

.paypal-info p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.payment-actions {
    margin-top: 30px;
    text-align: center;
}

.security-info {
    margin-top: 15px;
    font-size: 12px;
    color: var(--text-muted);
}

.error-message {
    background: rgba(255, 0, 64, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    text-align: center;
}

.success-message {
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    padding: 15px;
    border-radius: 4px;
    margin-top: 20px;
    text-align: center;
    font-family: 'Source Code Pro', monospace;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

/* Payment Button Styling */
.payment-button {
    width: 100%;
    background: linear-gradient(45deg, #0a0a0a, #1a1a1a);
    border: 2px solid var(--accent-green);
    color: var(--accent-green);
    padding: 15px 20px;
    font-family: 'Source Code Pro', monospace;
    font-size: 16px;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.payment-button:hover {
    background: linear-gradient(45deg, #1a1a1a, #2a2a2a);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
    border-color: #00ff41;
}

.payment-button:active {
    transform: translateY(1px);
}

.payment-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.payment-button .button-text {
    position: relative;
    z-index: 2;
}

/* Email Verification Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-container {
    background: var(--primary-bg);
    border: 2px solid var(--accent-green);
    border-radius: 8px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 0 30px rgba(0, 255, 65, 0.3);
}

.modal-header {
    text-align: center;
    margin-bottom: 30px;
}

.modal-header h2 {
    color: var(--accent-green);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-family: 'Source Code Pro', monospace;
}

.modal-actions {
    margin-top: 25px;
    text-align: center;
}

.footer-info {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
}

/* Enhanced Mobile Responsive Design */
@media (max-width: 768px) {
    .terminal-container {
        margin: 10px;
        border-radius: 0;
        min-height: calc(100vh - 20px);
    }
    
    .terminal-content {
        padding: 20px;
    }
    
    .ascii-art pre {
        font-size: 6px;
    }
    
    .book-showcase {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .book-info {
        padding: 20px;
    }
    
    .book-header h1 {
        font-size: 1.8rem;
    }
    
    .classification {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    /* Mobile Reader Layout */
    .reader-container {
        grid-template-columns: 1fr;
        position: relative;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        left: -320px;
        width: 300px;
        height: 100vh;
        z-index: 1000;
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    /* Mobile sidebar toggle button */
    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 20px;
        left: 20px;
        z-index: 1001;
        background: var(--accent-green);
        color: var(--primary-bg);
        border: none;
        padding: 10px;
        border-radius: 4px;
        font-family: 'Source Code Pro', monospace;
        font-size: 12px;
        cursor: pointer;
    }
    
    .main-reader {
        grid-column: 1;
        margin-left: 0;
    }
    
    /* Enhanced reading experience on mobile */
    .document-content {
        padding: 20px 15px;
        max-width: 100%;
    }
    
    .chapter-content {
        font-size: 16px;
        line-height: 1.8;
        padding: 15px 0;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .reader-header {
        padding: 15px 20px;
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .reader-controls {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .control-btn {
        font-size: 11px;
        padding: 6px 8px;
    }
    
    /* Better spacing for mobile reading */
    .section-heading {
        font-size: 16px;
        padding: 8px 12px;
        margin: 20px 0 12px 0;
    }
    
    .report-meta {
        font-size: 11px;
        padding: 12px;
    }
    
    .warning-text, .fatal-text {
        font-size: 13px;
        padding: 10px 12px;
    }
    
    .analysis-pair {
        flex-direction: column;
        gap: 10px;
    }
    
    .char-title {
        flex: none;
        font-size: 12px;
    }
    
    .char-analysis {
        font-size: 12px;
    }
    
    /* Table of contents improvements */
    .toc-item {
        padding: 15px 20px;
    }
    
    .chapter-title {
        font-size: 12px;
        line-height: 1.3;
    }
    
    .input-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    /* Navigation controls */
    .navigation-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-btn {
        padding: 15px 20px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .ascii-art pre {
        font-size: 4px;
    }
    
    .book-header h1 {
        font-size: 1.5rem;
    }
    
    .price-display {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 5px;
    }
    
    .chapter-content {
        font-size: 15px;
        line-height: 1.8;
    }
    
    .document-content {
        padding: 15px 10px;
    }
    
    .section-heading {
        font-size: 14px;
        margin: 15px 0 10px 0;
    }
    
    .reader-header {
        padding: 10px 15px;
    }
    
    .control-btn {
        font-size: 10px;
        padding: 5px 6px;
    }
    
    /* Improved text spacing for small screens */
    .chapter-content p {
        margin-bottom: 18px;
        text-align: left;
    }
    
    .chapter-content h1, 
    .chapter-content h2, 
    .chapter-content h3, 
    .chapter-content h4 {
        font-size: 16px;
        margin-top: 25px;
        margin-bottom: 12px;
    }
    
    /* Enhanced list styling for mobile */
    .chapter-content ul, 
    .chapter-content ol {
        padding-left: 20px;
        margin-bottom: 18px;
    }
    
    .chapter-content li {
        margin-bottom: 10px;
        line-height: 1.7;
    }
    
    /* Better table responsive design */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    table {
        min-width: 300px;
        font-size: 11px;
    }
    
    th, td {
        padding: 8px 10px;
    }
}

/* Landscape phone optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .reader-container {
        height: 100vh;
    }
    
    .sidebar {
        width: 280px;
        left: -300px;
    }
    
    .document-content {
        padding: 15px 20px;
    }
    
    .chapter-content {
        font-size: 14px;
        line-height: 1.7;
    }
}

/* Large mobile/small tablet optimization */
@media (min-width: 481px) and (max-width: 768px) {
    .chapter-content {
        font-size: 17px;
        line-height: 1.9;
    }
    
    .document-content {
        padding: 25px 20px;
        max-width: 600px;
    }
    
    .section-heading {
        font-size: 17px;
    }
    
    .navigation-controls {
        flex-direction: row;
        justify-content: space-between;
    }
}