/* DOOM Terminal - Unit Economics Course CSS v5.5 (Super Final) */

/* --- FONT DEFINITION --- */
@font-face {
    font-family: 'PixelFont';
    /* ЗАМЕНИТЕ ЭТОТ ПУТЬ! УБЕДИТЕСЬ, ЧТО У ВАС ЕСТЬ ПИКСЕЛЬНЫЙ ШРИФТ С КИРИЛЛИЦЕЙ */
    src: url('/assets/fonts/your-pixel-font-cyrillic-regular.woff2') format('woff2'), /* Пример: /fonts/PerfectDOSVGA437.woff2 */
         url('/assets/fonts/your-pixel-font-cyrillic-regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'PixelFont';
    /* ЗАМЕНИТЕ ЭТОТ ПУТЬ! Для жирного начертания, если есть отдельный файл */
    src: url('/assets/fonts/your-pixel-font-cyrillic-bold.woff2') format('woff2'),
         url('/assets/fonts/your-pixel-font-cyrillic-bold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

/* --- CSS VARIABLES (THEME) --- */
:root {
    --bg-color: #000000;
    --primary-green: #00FF00;
    --secondary-green: #32CD32;
    --accent-red: #FF0000;
    --accent-yellow: #FFFF00;
    --accent-blue: #00FFFF;
    --white: #FFFFFF;
    --grey-light: #A0A0A0;
    --grey-mid: #808080;
    --grey-dark: #404040;
    --font-family-pixel: 'PixelFont', 'Courier New', Courier, monospace;
    --border-style: 1px solid var(--secondary-green);
    --border-style-strong: 2px solid var(--primary-green);
    --shadow-glow: 0 0 7px rgba(0, 255, 0, 0.45);
    --shadow-glow-intense: 0 0 11px rgba(0, 255, 0, 0.65);
}

/* --- GLOBAL RESET & BODY --- */
*, *::before, *::after { box-sizing: border-box; }

body {
    background-color: var(--bg-color);
    color: var(--secondary-green);
    font-family: var(--font-family-pixel);
    margin: 0;
    padding: 0;
    padding-top: 75px; /* Adjusted for header height, verify actual header height */
    line-height: 1.65;
    image-rendering: pixelated;
    -ms-interpolation-mode: nearest-neighbor;
    font-size: 17px; /* Base font size, adjust as needed */
    overflow-x: hidden;
}

/* --- LAYOUT CONTAINER & SIDEBAR --- */
.course-layout-container {
    display: flex;
    max-width: 1300px; /* Slightly wider to accommodate sidebar better */
    margin: 0 auto;
    padding: 0 5px; /* Reduced overall layout padding */
}

.course-sidebar {
    flex: 0 0 var(--sidebar-width); /* Use CSS variable for width */
    background-color: #010201; /* Very dark green/black */
    border-right: 1px solid var(--grey-dark);
    padding: 10px 5px; /* Reduced padding */
    height: calc(100vh - 70px); /* Header height - adjust if header changes */
    position: sticky;
    top: 70px; /* Match body padding-top */
    overflow-y: auto;
    box-shadow: inset -2px 0 5px rgba(0,0,0,0.25);
}

.sidebar-title {
    color: var(--primary-green);
    font-size: 0.9em; /* Reduced */
    text-transform: uppercase;
    letter-spacing: 0.5px; /* Reduced */
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--grey-dark);
    text-align: center;
}

#sidebarNav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

#sidebarNav li {
    margin-bottom: 0;
}

/* In unit-economy-course-doom.css */
.sidebar-link {
    display: flex;
    align-items: center;
    padding: 3px 5px;
    color: var(--secondary-green);
    text-decoration: none;
    font-size: 0.72em; /* This is quite small, ensure it's readable */
    line-height: 1.3;
    border: 1px solid transparent;
    transition: background-color 0.1s, color 0.1s, border-color 0.1s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-radius: 1px;
    width: 100%; /* Ensure the link takes full width of its li parent */
}

.sidebar-link .sidebar-link-icon {
    margin-right: 4px;
    font-size: 1.05em; /* Relative to the link's font size */
    min-width: 15px;
    width: 15px;     /* Fixed width for icon container */
    text-align: center;
    flex-shrink: 0; /* Icon does not shrink */
    display: inline-flex; /* For better vertical alignment of icon itself */
    align-items: center;
    justify-content: center;
}

/* The text part of the link */
.sidebar-link span:not(.sidebar-link-icon) { /* If title is wrapped in a span */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-grow: 1; /* Allow text to take remaining space */
}

.sidebar-link:hover:not(.locked):not(.current-block) {
    background-color: var(--grey-dark);
    color: var(--primary-green);
    border-color: var(--grey-mid); /* Slightly more visible hover border */
}

.sidebar-link.current-block {
    background-color: var(--accent-blue);
    color: var(--bg-color);
    font-weight: bold;
    border-color: var(--accent-blue);
    box-shadow: inset 0 0 3px rgba(0,0,0,0.2);
}
.sidebar-link.current-block .sidebar-link-icon {
    color: var(--bg-color);
}
.sidebar-link.current-block:hover {
    filter: brightness(1.15);
}

.sidebar-link.locked {
    color: var(--grey-mid);
    cursor: not-allowed;
    opacity: 0.4; /* Even more faded */
    background-color: #000000; /* Black background for locked */
    border-color: #000000;
}
.sidebar-link.locked:hover {
    background-color: #000000;
    color: var(--grey-mid);
    border-color: #000000;
}
.sidebar-link.locked .sidebar-link-icon::before {
    content: "🔒"; /* Using direct emoji */
    color: var(--accent-red);
    opacity: 0.7;
}

.sidebar-link.completed .sidebar-link-icon::before {
    content: "✔"; /* Direct emoji */
    color: var(--primary-green);
}

.course-main-content-area {
    flex-grow: 1;
    padding-left: 20px; /* Adjusted space */
}


/* --- FIXED HEADER --- */
.fixed-header {
    width: 100%;
    background-color: rgba(0,0,0,0.94);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    border-bottom: var(--border-style-strong);
    padding: 7px 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 3px 12px rgba(0, 255, 0, 0.25);
}
.navigation-buttons-header { display: flex; gap: 8px; margin-bottom: 7px; }
.nav-btn-header {
    background-color: var(--grey-dark); color: var(--primary-green); border: 1px solid var(--secondary-green);
    padding: 4px 10px; font-size: 0.88em; cursor: pointer; text-transform: uppercase;
    letter-spacing: 0.8px; transition: background-color 0.1s, color 0.1s, box-shadow 0.1s, border-color 0.1s;
}
.nav-btn-header:hover:not(.disabled) { background-color: var(--primary-green); color: var(--bg-color); box-shadow: var(--shadow-glow); border-color: var(--primary-green); }
.nav-btn-header.disabled { background-color: #111111; color: var(--grey-mid); cursor: not-allowed; opacity: 0.45; border-color: var(--grey-dark); }
#currentBlockBtnHeader { background-color: var(--accent-blue); color: var(--bg-color); border-color: var(--accent-blue); box-shadow: 0 0 7px var(--accent-blue); }
#currentBlockBtnHeader:hover:not(.disabled) { filter: brightness(1.25); }

.progress-bar-container {
    width: calc(100% - 20px);
    max-width: 680px;
    height: 11px;
    background-color: #050505; /* Slightly lighter than pure black for contrast with segments */
    display: flex;
    border: 1px solid var(--grey-dark);
    overflow: hidden;
    padding: 1px; /* Small padding to see segment borders against container border */
}
.progress-segment-visual {
    flex-grow: 1;
    height: 100%;
    background-color: var(--grey-dark); /* DEFAULT state - visible grey */
    border-right: 1px solid #000; /* Black separator between segments */
    transition: background-color 0.2s ease-out, box-shadow 0.2s ease-out, opacity 0.2s ease-out;
    cursor: pointer;
    opacity: 0.7; /* Default segments slightly less prominent */
}

.progress-segment-visual.locked {
    background-color: #111111 !important; /* Very dark, but not pure black like main bg */
    border-right-color: #000000 !important;
    cursor: not-allowed;
    opacity: 0.35 !important; /* More faded for locked */
}
.progress-segment-visual.locked:hover {
    filter: none;
    box-shadow: none;
    opacity: 0.35 !important;
}
.progress-segment-visual:hover:not(.locked) { /* Hover only for non-locked */
    filter: brightness(1.4);
    opacity: 1;
    box-shadow: inset 0 0 2px var(--white);
}
.progress-segment-visual:last-child {
    border-right: none;
}
.progress-segment-visual.active {
    background-color: var(--primary-green) !important; /* Ensure green takes precedence */
    box-shadow: inset 0 0 3px rgba(0,0,0,0.5);
    opacity: 1; /* Fully opaque */
}

.progress-segment-visual.current {
    background-color: var(--accent-blue) !important; /* Ensure blue takes precedence */
    animation: pulseCurrentVisualAnimation 1.3s infinite alternate;
    box-shadow: inset 0 0 4px rgba(0,0,0,0.6), 0 0 5px var(--accent-blue); /* Outer glow for current */
    opacity: 1;
    z-index: 1; /* Ensure current is visually on top if overlapping somehow */
}
/* If current is also active (completed), the green from .active might show if not !important on .current */
.progress-segment-visual.current.active {
    background-color: var(--accent-blue); /* Keep it blue but could add a green tint or border */
    /* Example: border: 1px solid var(--primary-green); */
}
@keyframes pulseCurrentVisualAnimation { from { filter: brightness(0.75); } to { filter: brightness(1.15); } }

/* --- COURSE CONTAINER & CONTENT STYLING --- */
.course-container { max-width: 900px; margin: 0 auto; padding: 15px; } /* No top margin as it's inside main-content-area now */

h1, h2, h3, h4 {
    color: var(--primary-green); font-weight: bold; margin-top: 1.6em; margin-bottom: 0.9em;
    border-bottom: var(--border-style); padding-bottom: 0.45em; text-transform: uppercase;
}
h1.course-main-title { font-size: 1.9em; text-align: center; border-width: 2px; letter-spacing: 1.2px; text-shadow: var(--shadow-glow-intense); margin-top: 0.3em; margin-bottom: 0.1em;}
h2.course-subtitle { font-size: 1.1em; color: var(--secondary-green); border-bottom: none; text-align: center; margin-top: 0em; margin-bottom: 1.8em; text-transform: none; font-weight: normal;}
h2 { font-size: 1.5em; letter-spacing: 0.9px;}
h3 { font-size: 1.3em; color: var(--secondary-green); border-bottom-style: dashed; border-color: var(--grey-mid); }
h4 { font-size: 1.1em; color: var(--accent-blue); border-bottom-style: dotted; border-color: var(--accent-blue); padding-bottom: 0.25em; margin-bottom: 0.6em;}

p, li { font-size: 1em; margin-bottom: 0.8em; line-height: 1.6; }
a { color: var(--accent-yellow); text-decoration: none; font-weight: normal; }
a:hover, a:focus { background-color: var(--accent-yellow); color: var(--bg-color); outline: 1px solid var(--accent-yellow); text-shadow: none; }
.nav-btn-header a:hover, .nav-btn-header a:focus,
.quiz-submit-button a:hover, .quiz-submit-button a:focus,
.next-block-button-footer a:hover, .next-block-button-footer a:focus { background-color: transparent; color: inherit; outline: none; }

strong { color: var(--primary-green); font-weight: bold; }
.highlight { color: var(--accent-yellow); font-weight:bold; background-color: rgba(40, 40, 0, 0.5); padding: 0 3px; }
.critical-info { color: var(--accent-red); font-weight: bold; background-color: rgba(40, 0, 0, 0.5); padding: 0 3px;}

.content-frame { border: var(--border-style-strong); background-color: rgba(0, 10, 0, 0.5); padding: 1.6em; margin-bottom: 1.8em; box-shadow: var(--shadow-glow); }
.doom-image-container { border: var(--border-style); margin: 1.6em auto; padding: 5px; background-color: #010101; display: table; box-shadow: inset 0 0 7px var(--grey-dark); }
.doom-image { display: block; max-width: 100%; height: auto; }

.formula-box {
    font-family: var(--font-family-pixel);
    color: var(--primary-green);
    background-color: rgba(0,0,0,0.85);
    padding: 0.8em 1.2em; /* Slightly reduced padding */
    margin: 1.2em auto;   /* This centers the block if width is constrained */
    white-space: pre-wrap; /* Allows line breaks from HTML and wraps long lines */
    text-align: left;     /* Text inside the box is left-aligned */
    font-size: 1.0em;     /* Slightly reduced font size for formulas */
    box-shadow: inset 0 0 9px #001800;
    /* To make the box itself centered if its content is narrower than container: */
    display: table; /* Or 'inline-block', or 'block' with explicit 'max-width' */
    /* If using 'display: table' or 'inline-block', 'margin: auto' will center it. */
    /* Alternatively, for block: */
    /* display: block; */
    /* max-width: 80%; /* Or a specific px value like 500px */
}

/* Ensure spans within the formula are treated as inline by default for natural flow */
.formula-box span {
    display: inline;
    line-height: 1.5; /* Adjust line-height for multi-line formulas if they wrap */
}
.formula-box .operator { color: var(--white); margin: 0 0.2em; } /* Slightly less margin */
.formula-box .variable { color: var(--secondary-green); font-style: normal; }
.formula-box .result { color: var(--primary-green); font-weight: bold; }
.formula-box .comment {
    font-size: 0.75em; /* Smaller comment */
    color: var(--grey-mid);
    display: block; /* Comment on its own line */
    margin-top: 0.4em;
    font-style: italic;
    text-align: left; /* Ensure comments are also left-aligned */
}
.formula-box .literal {color: var(--accent-yellow); }

table.doom-table { width: 100%; border-collapse: collapse; margin: 1.6em 0; border: var(--border-style-strong); box-shadow: var(--shadow-glow); }
table.doom-table th, table.doom-table td { border: 1px solid var(--grey-dark); padding: 0.65em; text-align: left; color: var(--secondary-green); font-size: 0.95em; }
table.doom-table th { background-color: #040404; color: var(--primary-green); font-weight: bold; text-transform: uppercase; border-bottom: var(--border-style-strong); }
table.doom-table tr:nth-child(even) td { background-color: rgba(0, 8, 0, 0.5); }
table.doom-table .status-icon { font-size: 1.2em; text-align: center; }
table.doom-table .status-icon.critical { color: var(--accent-red); }
table.doom-table .status-icon.warning { color: var(--accent-yellow); }
table.doom-table .status-icon.good { color: var(--primary-green); }
table.doom-table .status-icon.excellent { color: var(--accent-blue); }

.author-section { display: flex; flex-direction: column; align-items: center; gap: 18px; margin-bottom: 25px; padding: 18px; border: 2px dashed var(--secondary-green); background-color: rgba(0,2,0,0.7); }
.author-photo { width: 100px; height: 100px; object-fit: cover; display: block; border: var(--border-style-strong); box-shadow: var(--shadow-glow); }
.author-details { text-align: center;}
.author-details p { margin-bottom: 0.4em; font-size: 0.95em;}
.author-details ul { list-style-type: none; padding-left: 0; margin-top: 0.4em;}
.author-details ul li::before { content: "♦ "; color: var(--primary-green); font-weight: normal; margin-right: 4px;}

.logos-container { display: flex; gap: 10px; justify-content: center; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.logo-item-text { background-color: var(--bg-color); padding: 3px 7px; border: 1px solid var(--secondary-green); color: var(--primary-green); font-size: 0.8em; text-transform: uppercase; letter-spacing: 0.7px; }

.section-divider { height: 2px; background: linear-gradient(to right, transparent 0%, var(--secondary-green) 20%, var(--secondary-green) 80%, transparent 100%); margin: 45px 0; border: none; opacity: 0.6; }
.section-divider.short { margin: 28px 0; height:1px; background: linear-gradient(to right, transparent 0%, var(--grey-mid) 30%, var(--grey-mid) 70%, transparent 100%); opacity: 0.4;}

/* --- BUTTONS: NEXT, QUIZ SUBMIT, ETC. --- */
.next-block-button-footer {
    display: block;
    margin: 2.2em auto 0 auto;
    padding: 0.7em 1.7em;
    font-size: 1.1em;
    background-color: var(--accent-blue);
    color: var(--bg-color);
    border: 2px solid var(--accent-blue);
    border-radius: 2px;
    cursor: pointer;
    font-family: var(--font-family-pixel);
    font-weight: bold;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    box-shadow: 0 0 7px var(--accent-blue);
    transition: background 0.12s, color 0.12s, box-shadow 0.12s, border-color 0.12s;
}
.next-block-button-footer:hover:not(.disabled) {
    background-color: var(--primary-green);
    color: var(--bg-color);
    border-color: var(--primary-green);
    box-shadow: 0 0 9px var(--primary-green);
}
.next-block-button-footer.disabled {
    background-color: #111111;
    color: var(--grey-mid);
    cursor: not-allowed;
    opacity: 0.45;
    border-color: var(--grey-dark);
}

.quiz-submit-button {
    display: block;
    margin: 1.5em auto 0 auto;
    padding: 0.7em 1.7em;
    font-size: 1.1em;
    background-color: var(--accent-yellow);
    color: var(--bg-color);
    border: 2px solid var(--accent-yellow);
    border-radius: 2px;
    cursor: pointer;
    font-family: var(--font-family-pixel);
    font-weight: bold;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    box-shadow: 0 0 7px var(--accent-yellow);
    transition: background 0.12s, color 0.12s, box-shadow 0.12s, border-color 0.12s;
}
.quiz-submit-button:hover:not(.disabled) {
    background-color: var(--primary-green);
    color: var(--bg-color);
    border-color: var(--primary-green);
    box-shadow: 0 0 9px var(--primary-green);
}
.quiz-submit-button.disabled {
    background-color: #111111;
    color: var(--grey-mid);
    cursor: not-allowed;
    opacity: 0.45;
    border-color: var(--grey-dark);
}

/* --- HIGHLIGHT & CRITICAL INFO --- */
.highlight {
    color: var(--accent-yellow);
    font-weight: bold;
    background-color: rgba(40, 40, 0, 0.5);
    padding: 0 3px;
}
.critical-info {
    color: var(--accent-red);
    font-weight: bold;
    background-color: rgba(40, 0, 0, 0.5);
    padding: 0 3px;
}

/* --- DIAGRAMS --- */
.diagram-outer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 1.8em 0;
}
.diagrams-flex-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: flex-start;
    gap: 15px;
    margin: 1em 0;
}
.diagram-container {
    border: var(--border-style);
    padding: 0.8em;
    background-color: rgba(0,0,0,0.6);
    text-align: center;
    width: auto;
    display: inline-block;
    max-width: 100%;
    box-shadow: inset 0 0 7px rgba(0, 30, 0, 0.6);
}
.diagram-title {
    color: var(--primary-green);
    text-align: center;
    margin-bottom: 0.8em;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 1em;
    letter-spacing: 0.5px;
    border-bottom: none;
    padding-bottom: 0;
}

.market-potential-diagram-css { display: flex; flex-direction: column; align-items: center; gap: 0; width: 100%; max-width: 380px; }
.market-segment-block-css { border: 1px solid var(--grey-dark); color: var(--primary-green); background-color: var(--bg-color); display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 5px 8px; box-sizing: border-box; width: 100%; margin: 0; transition: filter 0.15s ease-out; }
.market-segment-block-css:hover { filter: brightness(1.35); z-index: 1;}
.market-segment-block-css .segment-title-css { font-weight: bold; font-size: 0.9em; }
.market-segment-block-css .segment-desc-css { font-size: 0.7em; color: var(--secondary-green); margin-top: 2px; }
.pam-block-css { width: 100%; background-color: #101010; border-color: var(--grey-dark); color:var(--grey-light); }
.tam-block-css { width: 90%; background-color: #0A0A0A; border-color: var(--grey-mid); color:var(--grey-mid); }
.sam-block-css { width: 80%; background-color: #050505; }
.som-block-css { width: 70%; background-color: var(--bg-color); border-color: var(--primary-green); color:var(--primary-green); font-weight: bold;}

.aida-funnel-container-css { display: flex; flex-direction: column; align-items: center; width: 100%; max-width: 330px; }
.aida-stage-box-css { background-color: var(--bg-color); border: 1px solid var(--grey-dark); color: var(--primary-green); padding: 6px 10px; margin: 0 auto; text-align: center; position: relative; box-sizing: border-box; display: flex; flex-direction: column; align-items: center; justify-content: center; transition: filter 0.15s ease-out; margin-bottom: 0px; }
.aida-stage-box-css:hover { filter: brightness(1.35); z-index:1; }
.aida-stage-box-css .stage-title-css { font-weight: bold; font-size: 0.9em; margin-bottom: 1px; }
.aida-stage-box-css .stage-desc-css { font-size: 0.75em; color: var(--secondary-green); }
.aida-awareness-css    { width: 100%; background-color: #0A0A0A;}
.aida-interest-css     { width: 90%; background-color: #080808;}
.aida-desire-css       { width: 80%; background-color: #060606;}
.aida-action-css       { width: 70%; background-color: #040404; color: var(--accent-yellow); border-color: var(--accent-yellow);}
.aida-repeat-css       { width: 60%; border-style: dashed; border-color: var(--accent-blue); color: var(--accent-blue); background-color: #020202;}
.arrow-down-cli-css { font-size: 1.1em; line-height: 0.5; margin: 2px auto; color: var(--grey-mid); display: block; text-align: center; }
.arrow-down-cli-css::before { content: "▼"; }

.aarrr-metrics-grid { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; width: 100%; max-width: 300px; margin: 0.8em auto; }
.aarrr-metric-item { border: 1px solid var(--grey-dark); padding: 8px; background-color: #020202; transition: background-color 0.1s, border-color 0.1s; box-sizing: border-box; }
.aarrr-metric-item:nth-child(1) { width: 100%; background-color: #0A0A0A; }
.aarrr-metric-item:nth-child(2) { width: 92%; background-color: #080808; }
.aarrr-metric-item:nth-child(3) { width: 84%; background-color: #060606; }
.aarrr-metric-item:nth-child(4) { width: 76%; background-color: #040404; border-color: var(--accent-blue); color: var(--accent-blue); } /* Referral special */
.aarrr-metric-item:nth-child(5) { width: 68%; background-color: #030303; border-color: var(--accent-yellow); color: var(--accent-yellow); } /* Revenue special */
.aarrr-metric-item:hover { background-color: #0C0C0C; border-color: var(--primary-green); }
.aarrr-metric-item .metric-name { font-weight: bold; color: var(--primary-green); display: block; margin-bottom: 4px; font-size: 0.9em; }
.aarrr-metric-item:nth-child(4) .metric-name { color: var(--accent-blue); } /* Referral name color */
.aarrr-metric-item:nth-child(5) .metric-name { color: var(--accent-yellow); } /* Revenue name color */
.aarrr-metric-item .metric-desc { font-size: 0.75em; color: var(--secondary-green); }
.aarrr-metric-item .doom-icon { font-size: 1.2em; margin-bottom: 4px; display: block; }

.client-immersion-funnel-css { display: flex; flex-direction: column; align-items: center; width: 100%; max-width: 420px; }
.immersion-stage-css { border: 1px solid var(--grey-dark); color: var(--secondary-green); padding: 5px 8px; margin: 0 auto 0px auto; text-align: center; background-color: #020202; font-size: 0.85em; width: 100%; transition: filter 0.15s ease-out; }
.immersion-stage-css:hover { filter: brightness(1.3); }
.immersion-stage-css span { display: block; }
.awareness-general { width: 100%; background-color: #0B0B0B; color: var(--grey-light); }
.awareness-problem-solution { width: 95%; background-color: #090909; }
.awareness-product-focus { width: 90%; background-color: #070707; }
.consideration-decision { width: 85%; background-color: #050505; color: var(--primary-green); }
.transaction-ready { width: 80%; background-color: #040404; color: var(--accent-yellow); border-color: var(--accent-yellow); }
.acquired { width: 75%; background-color: #030303; color: var(--primary-green); border-color: var(--primary-green); font-weight: bold; }
.activation-onboarding { width: 70%; background-color: #020202; }
.active-retained { width: 65%; background-color: #010101; color: var(--accent-blue); border-color: var(--accent-blue); }
.churn-alert {width: 60%; background-color: #150000; color: var(--accent-red); border-color: var(--accent-red); }
.churned-recovered {width: 55%; background-color: #100510; color: var(--accent-yellow); border-color: var(--grey-mid); }

/* --- QUIZ BLOCKS --- */
.quiz-container { border: var(--border-style-strong); border-color: var(--accent-blue); padding: 1.1em; margin-top: 1.8em; background-color: rgba(0, 3, 15, 0.5); box-shadow: 0 0 9px var(--accent-blue); }
.quiz-title { color: var(--accent-blue); font-size: 1.2em; text-align: center; margin-bottom: 1.1em; text-shadow: 0 0 5px var(--accent-blue); text-transform: uppercase; letter-spacing: 0.7px;}
.quiz-question { margin-bottom: 1.1em; }
.quiz-question p { color: var(--white); margin-bottom: 0.7em; font-size: 1em;}
.quiz-options label { display: block; margin-bottom: 0.5em; padding: 0.6em 0.8em; border: var(--border-style); border-color: var(--grey-mid); cursor: pointer; transition: background-color 0.1s, border-color 0.1s, transform 0.05s; background-color: rgba(3,3,3,0.7); }
.quiz-options label:hover { background-color: var(--grey-dark); border-color: var(--primary-green); transform: translateX(2px); box-shadow: 0 0 3px var(--primary-green);}
.quiz-options input[type="radio"] { display: none !important; }
.quiz-options input[type="radio"]:checked + span { color: var(--accent-yellow) !important; font-weight:bold !important; }
.quiz-options input[type="radio"]:checked + span::before { content: "[X] "; }

.quiz-submit-button, .next-block-button-footer, .nav-btn-header {
    font-family: var(--font-family-pixel) !important;
    background: #111 !important;
    color: var(--primary-green) !important;
    border: 2px solid var(--primary-green) !important;
    box-shadow: var(--shadow-glow);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    padding: 0.7em 1.5em;
    cursor: pointer;
    transition: background 0.1s, color 0.1s;
}
.quiz-submit-button:hover, .next-block-button-footer:hover, .nav-btn-header:hover {
    background: var(--primary-green) !important;
    color: #000 !important;
    box-shadow: var(--shadow-glow-intense);
}

.quiz-feedback { margin-top: 0.7em; padding: 0.6em; border: var(--border-style); text-align: center; font-weight: normal; text-transform: uppercase; letter-spacing: 0.5px; font-size: 0.85em; }
.feedback-correct { background-color: rgba(0, 25, 0, 0.8); color: var(--primary-green); border-color: var(--primary-green); }
.feedback-incorrect { background-color: rgba(25, 0, 0, 0.8); color: var(--accent-red); border-color: var(--accent-red); }
.feedback-info { background-color: rgba(0, 0, 25, 0.8); color: var(--accent-blue); border-color: var(--accent-blue); }

/* --- DASHBOARD & WIDGETS --- */
.dashboard-container { border: var(--border-style-strong); border-color:var(--accent-blue); padding: 1em; background-color: rgba(0,5,15,0.7); margin-top: 1.5em; box-shadow: 0 0 12px var(--accent-blue); }
.dashboard-header { color: var(--accent-blue); font-size: 1.3em; text-align: center; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1em; padding-bottom: 0.5em; border-bottom: 1px solid var(--accent-blue); }
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1em; }
.dashboard-widget { background-color: rgba(0,0,0,0.7); border: var(--border-style); padding: 0.8em; text-align: center; }
.widget-title { font-size: 0.9em; color: var(--secondary-green); margin-bottom: 0.5em; text-transform: uppercase; letter-spacing: 0.5px;}
.widget-value { font-size: 1.8em; color: var(--primary-green); font-weight: bold; margin-bottom: 0.2em; line-height: 1.1;}
.widget-value.ltv-cac-ratio.good { color: var(--primary-green); }
.widget-value.ltv-cac-ratio.warning { color: var(--accent-yellow); }
.widget-value.ltv-cac-ratio.bad { color: var(--accent-red); }
.widget-trend { font-size: 0.8em; color: var(--grey-mid); }
.widget-trend.up { color: var(--primary-green); }
.widget-trend.up::before { content: "▲ "; }
.widget-trend.down { color: var(--accent-red); }
.widget-trend.down::before { content: "▼ "; }
.widget-trend.static::before { content: "● "; }
.widget-trend.bad { color: var(--accent-red); } /* For trends like increasing churn */
.widget-trend.good { color: var(--primary-green); } /* For trends like decreasing payback */
.widget-funnel { grid-column: span 2; /* Example for wider widget */ text-align: left; }
.funnel-stage-css { display: flex; justify-content: space-between; padding: 3px 0; font-size: 0.9em; border-bottom: 1px dotted var(--grey-dark); }
.funnel-stage-css:last-child { border-bottom: none; }
.funnel-label-css { color: var(--secondary-green); }
.funnel-value-css { color: var(--white); font-weight: bold; }
.funnel-conversion-css { text-align: right; font-size: 0.8em; color: var(--accent-blue); padding-left: 20px; }
.funnel-conversion-css span { font-style: italic; }
.widget-double { display: flex; gap: 0.5em; grid-column: span 2; }
.widget-half { flex: 1; background-color: rgba(5,5,5,0.7); border: 1px solid var(--grey-dark); padding: 0.6em; }
.dashboard-footer { text-align: right; font-size: 0.75em; color: var(--grey-mid); margin-top: 1em; border-top: 1px solid var(--grey-dark); padding-top: 0.5em;}


.blinking-cursor::after { content: '█'; animation: blinkCursorAnimation 0.9s step-end infinite; color: var(--primary-green); font-weight: bold; margin-left: 2px;}
@keyframes blinkCursorAnimation { 50% { opacity: 0; } }

blockquote { border-left: 3px solid var(--secondary-green); padding: 0.7em 1.1em; margin: 1.3em 0; font-style: italic; color: var(--grey-light); background-color: #020202; }
blockquote strong { color: var(--primary-green); }

ul, ol { padding-left: 18px; }
ul li::marker { color: var(--primary-green); content: "» "; font-size: 1em;}
ol li::marker { color: var(--primary-green); font-weight: normal; }
li { margin-bottom: 0.5em; }

.course-block { display: none; }
.course-block.active { display: block; animation: fadeInBlockAnimation 0.4s ease-out forwards; }
@keyframes fadeInBlockAnimation { from { opacity: 0.15; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* --- ABILITY TO REVEAL ANSWERS --- */
.reveal-answer-container {
    margin: 1.5em 0;
    padding: 1em;
    background-color: rgba(0, 0, 0, 0.6);
    border: var(--border-style);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}
.reveal-answer-button {
    background-color: var(--accent-blue);
    color: var(--bg-color);
    border: 2px solid var(--accent-blue);
    padding: 0.6em 1.2em;
    font-size: 1em;
    font-family: var(--font-family-pixel);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background-color 0.1s, color 0.1s, border-color 0.1s, box-shadow 0.1s;
    position: relative;
    z-index: 1;
}
.reveal-answer-button:hover {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    box-shadow: 0 0 8px var(--primary-green);
}
.reveal-answer-content {
    display: none;
    color: var(--white);
    font-size: 0.95em;
    margin-top: 0.8em;
    line-height: 1.4;
}
.reveal-answer-container.active .reveal-answer-content {
    display: block;
}
.reveal-answer-container.active .reveal-answer-button {
    background-color: var(--primary-green);
    color: var(--bg-color);
    border-color: var(--primary-green);
    box-shadow: 0 0 8px var(--primary-green);
}

/* --- ACHIEVEMENT POPUP --- */
.achievement-popup {
    position: fixed;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-green);
    color: var(--bg-color);
    padding: 0.7em 1.3em;
    border: 2px solid var(--white);
    z-index: 2000;
    font-size: 0.9em;
    text-align: center;
    display: none;
    box-shadow: 0 0 15px var(--primary-green), inset 0 0 3px var(--bg-color);
    text-transform: uppercase;
    letter-spacing: 0.7px;
    animation: achievementSlideInAnimation 0.35s ease-out forwards;
}
@keyframes achievementSlideInAnimation { from { bottom: -70px; opacity: 0; } to { bottom: 12px; opacity: 1; } }

.abbr-explainer-trigger { color: var(--accent-yellow); cursor: help; border-bottom: 1px dotted var(--accent-yellow); font-weight: normal; }
.abbr-explanation { display: none; border: 1px dashed var(--grey-dark); padding: 0.5em 0.7em; margin-top: 0.4em; margin-bottom: 0.6em; background-color: #010101; color: var(--secondary-green); font-size: 0.85em; }
.abbr-explanation strong { color: var(--primary-green); }

.doom-icon { display: inline-block; font-weight: normal; color: var(--primary-green); margin-left: 0.3em; font-size: 0.95em; vertical-align: baseline; }
.doom-icon-terminal::before { content: "[⌨]"; }
.doom-icon-map::before { content: "🗺"; }
.doom-icon-calculator::before { content: "Σ"; }
.doom-icon-skull::before { content: "☠"; color: var(--accent-red); }
.doom-icon-target::before { content: "🎯"; }
.doom-icon-ammo::before { content: "🔩"; }
.doom-icon-crosshair::before { content: "⊕"; }
.doom-icon-exit::before { content: "🚪"; }
.doom-icon-dashboard::before { content: "📊"; }
.doom-icon-cogs::before { content: "⚙"; }
.doom-icon-lightbulb::before { content: "💡"; }
.doom-icon-link::before { content: "🔗"; }
.doom-icon-book::before { content: "📖"; }
.doom-icon-warning::before { content: "⚠"; color: var(--accent-yellow); margin-right: 0.2em;}

.survivor-bias-diagram { border: var(--border-style); padding: 1em; margin: 1em auto; background-color: rgba(5,0,0,0.3); max-width: 500px; }
.survivor-bias-diagram .plane-area { border: 1px dashed var(--grey-mid); padding: 0.5em; margin-bottom: 0.5em; text-align: center; position: relative; }
.survivor-bias-diagram .returned-planes { border-color: var(--primary-green); color: var(--primary-green); }
.survivor-bias-diagram .lost-planes { border-color: var(--accent-red); color: var(--accent-red); }
.survivor-bias-diagram .bullet-hole { display: inline-block; width: 5px; height: 5px; background-color: var(--accent-yellow); border-radius: 50%; margin: 1px 1.5px; box-shadow: 0 0 1px var(--accent-yellow); }
.survivor-bias-diagram .plane-area p {font-size: 0.85em; margin-bottom: 0.3em;}
.survivor-bias-diagram .explanation { font-size: 0.8em; color: var(--secondary-green); margin-top: 0.5em;}

.resource-list { list-style-type: none; padding-left: 0; }
.resource-list li { margin-bottom: 0.5em; font-size: 0.95em;}
.resource-list li .doom-icon-link { margin-right: 0.3em; color: var(--accent-blue)}
.resource-list li strong { color: var(--accent-blue); margin-right: 0.4em; font-weight: normal; }
.resource-list li a { color: var(--accent-yellow); }
.resource-list li a:hover { background-color: var(--accent-yellow); color: var(--bg-color); }

.course-footer {
    padding: 20px;
    text-align: center;
    border-top: var(--border-style-strong);
    margin-top: 30px;
    background-color: #020202; /* Slightly different footer bg */
}
.course-footer a { color: var(--primary-green); }
.course-footer a:hover { background-color: var(--primary-green); color: var(--bg-color); }


/* Responsive adjustments */
@media (max-width: 960px) { /* Adjust when sidebar might need to hide */
    .course-layout-container { flex-direction: column; }
    .course-sidebar {
        flex: 0 0 auto; /* Let it take natural height */
        width: 100%;
        max-height: 35vh; /* Remove max-height when stacked */
        height: auto;
        position: static; /* Or implement a toggleable menu */
        border-right: none;
        border-bottom: var(--border-style-strong);
        margin-bottom: 15px;
        max-height: 40vh; /* Limit height if it becomes too long */
        overflow-y: auto;
    }
    #sidebarNav ul {
        display: flex;
        flex-wrap: wrap; /* Allow wrapping for many items */
        justify-content: center;
    }
    #sidebarNav li {
        margin: 2px 4px;
    }
    .sidebar-link {
        font-size: 0.85em;
        padding: 6px 8px;
    }
    .course-main-content-area { padding-left: 10px; padding-right: 10px; }
    body { padding-top: 70px; } /* Header height might still apply */
}

@media (max-width: 768px) {
    body { font-size: 16px; padding-top: 70px; } /* Re-adjust if header is shorter */
    .fixed-header { padding: 5px 10px; }
    .navigation-buttons-header { gap: 5px; flex-wrap: wrap; justify-content: center;}
    .nav-btn-header { padding: 4px 7px; font-size: 0.78em; }
    .progress-bar-container { height: 9px; }
    .course-container { padding: 12px; margin-top: 0; /* No top margin if sidebar is above */ }
    h1.course-main-title { font-size: 1.5em; }
    h2.course-subtitle { font-size: 1em; }
    h2 { font-size: 1.3em; }
    h3 { font-size: 1.15em; }
    h4 { font-size: 1em; }
    p, li { font-size: 0.95em; }
    .formula-box { font-size: 0.9em; padding: 0.7em 1em; }
    .author-section { gap: 12px; padding: 12px;}
    .author-photo { width: 85px; height: 85px; }
    .quiz-submit-button, .next-block-button-footer { width: 80%; font-size: 0.9em; padding: 0.6em 1em; }
    .market-potential-diagram-css, .aida-funnel-container-css, .aarrr-metrics-grid { max-width: 98%; }
    .diagrams-flex-container { flex-direction: column; align-items: center; }
    .sidebar-link {
        font-size: 0.8em; /* Slightly larger on smaller screens if sidebar wraps */
        padding: 5px 7px;
    }
}

@media (max-width: 480px) {
    body { padding-top: 65px; } /* Potentially less if header nav wraps less */
    h1.course-main-title { font-size: 1.3em; }
    h2.course-subtitle { font-size: 0.9em; }
    h2 { font-size: 1.15em; }
    h3 { font-size: 1em; }
    h4 { font-size: 0.9em; }
    .nav-btn-header { padding: 3px 5px; font-size: 0.7em; }
    .quiz-options label { padding: 8px; font-size: 0.85em;}
    .logos-container { gap: 6px;}
    .logo-item-text { font-size: 0.7em; padding: 2px 5px;}
    .aarrr-metric-item { width: 100%; }
    .aarrr-metric-item:nth-child(n) { width: 100%;}
    .course-sidebar { max-height: 30vh; } /* Further limit sidebar on small screens */
}