@charset "UTF-8";

/* ==========================================================================
   Variables - Magazine Theme (Enhanced)
   ========================================================================== */
:root {
    /* Colors (Day Theme - Default) */
    --color-bg: #FFFAF0;
    --color-text: #5D4037;
    --color-primary: #FFB74D;
    --color-secondary: #8D6E63;
    --color-accent: #26A69A;
    --color-white: #ffffff;
    --color-border: #EFEBE9;
    --color-code-bg: #2d2d2d;
    --color-card-bg: #ffffff;
    --color-header-bg: rgba(255, 250, 240, 0.95);

    /* Typography */
    --font-main: "Zen Maru Gothic", sans-serif;

    /* Layout */
    --max-width: 1000px;
    --header-height: 80px;
}

[data-theme="dark"] {
    /* Colors (Night Theme) */
    --color-bg: #1a1a2e;
    --color-text: #e0e0e0;
    --color-primary: #fca311;
    --color-secondary: #a8a8a8;
    --color-accent: #4cc9f0;
    --color-white: #16213e;
    /* Re-purposed as card bg for dark mode */
    --color-border: #30475e;
    --color-code-bg: #0f3460;
    --color-card-bg: #16213e;
    --color-header-bg: rgba(26, 26, 46, 0.95);

    /* Adjustments */
    box-shadow: none;
}

/* ==========================================================================
   Base
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    line-height: 1.8;
    background-image: radial-gradient(var(--color-secondary) 0.5px, transparent 0.5px);
    background-size: 20px 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 0.2s ease;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================================================
   Visual Components (New!)
   ========================================================================== */

/* Concept Box: For analogies and key concepts */
.concept-box {
    background: var(--color-card-bg);
    border: 3px dashed var(--color-border);
    border-radius: 16px;
    padding: 30px;
    margin: 40px 0;
    position: relative;
}

.concept-box::before {
    content: "CONCEPT";
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 2px 12px;
    font-weight: bold;
    font-size: 0.8rem;
    border-radius: 4px;
}

.concept-title {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Diagram Container: For Mermaid and images */
.diagram-container {
    background: var(--color-card-bg);
    border: 2px solid var(--color-text);
    border-radius: 12px;
    padding: 30px;
    margin: 40px 0;
    text-align: center;
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.diagram-caption {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--color-secondary);
    font-weight: bold;
}

/* Mermaid override */
.mermaid {
    font-family: var(--font-main) !important;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    background: var(--color-header-bg);
    backdrop-filter: blur(5px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--color-text);
    transition: background-color 0.3s ease;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    border: 2px solid var(--color-text);
    padding: 5px 15px;
    background: var(--color-card-bg);
    display: inline-block;
    color: var(--color-text);
    box-shadow: 4px 4px 0 var(--color-primary);
    transform: rotate(-2deg);
    transition: transform 0.2s;
}

.logo:hover {
    transform: rotate(0deg) scale(1.05);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    margin: 80px 0;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--color-text);
    text-shadow: 3px 3px 0 var(--color-bg), 6px 6px 0 rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.3rem;
    color: var(--color-secondary);
    font-weight: bold;
}

/* ==========================================================================
   Grid System
   ========================================================================== */
.section-title {
    font-size: 2rem;
    margin-bottom: 40px;
    border-bottom: 4px solid var(--color-primary);
    display: inline-block;
    padding-bottom: 5px;
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.series-card {
    background: var(--color-card-bg);
    border: 2px solid var(--color-text);
    border-radius: 16px;
    padding: 25px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.series-card:hover {
    transform: translateY(-8px);
    box-shadow: 10px 10px 0 var(--color-primary);
}

.level-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    /* Right align for cleaner look */
    background: var(--color-text);
    color: var(--color-card-bg);
    padding: 5px 15px;
    font-size: 0.9rem;
    font-weight: bold;
    border-radius: 20px;
    border: 2px solid var(--color-white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.series-card h3 {
    margin-top: 10px;
    font-size: 1.4rem;
    margin-bottom: 15px;
    line-height: 1.3;
    color: var(--color-text);
}

.series-card p {
    font-size: 0.95rem;
    color: var(--color-secondary);
    flex-grow: 1;
    line-height: 1.6;
}

.read-btn {
    margin-top: 20px;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--color-card-bg);
    background: var(--color-text);
    padding: 8px 0;
    text-align: center;
    border-radius: 8px;
    transition: background 0.2s;
}

.series-card:hover .read-btn {
    background: var(--color-primary);
    color: var(--color-text);
}


/* ==========================================================================
   Logs List (Restored & Enhanced)
   ========================================================================== */
.logs-list {
    display: grid;
    gap: 20px;
    margin-bottom: 20px;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-secondary);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-main);
    font-weight: bold;
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text);
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--color-text);
    color: var(--color-text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    margin-left: auto;
    /* Push to right in header */
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--color-text);
    color: var(--color-card-bg);
}

/* Enhanced Sort Buttons */
.sort-btn {
    background: var(--color-white);
    border: 2px solid var(--color-primary);
    color: var(--color-text);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    font-family: var(--font-main);
    font-weight: bold;
    box-shadow: 2px 2px 0 var(--color-border);
}

.sort-btn:hover {
    transform: translateY(-2px);
    box-shadow: 4px 4px 0 var(--color-primary);
}

.sort-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-text);
    box-shadow: 2px 2px 0 var(--color-text);
}

/* Enhanced New Badge */
.new-badge {
    background: #FF7043;
    /* Warmer Orange-Red */
    color: white;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 20px;
    /* Pill shape */
    font-weight: bold;
    margin-left: auto;
    box-shadow: 0 2px 4px rgba(255, 112, 67, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    animation: popIn 0.5s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

/* ==========================================================================
   Feature: Atelier Radio (Audio)
   ========================================================================== */
.radio-player {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--color-card-bg);
    border: 2px solid var(--color-text);
    padding: 10px 15px;
    border-radius: 12px;
    display: flex;
    gap: 15px;
    align-items: center;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
    z-index: 998;
    /* Below cat counter modal but above page */
    max-width: 250px;
    transition: transform 0.3s;
}

.radio-player:hover {
    transform: translateY(-5px);
}

.radio-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text);
    font-weight: bold;
    overflow: hidden;
    white-space: nowrap;
}

.radio-controls button {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-text);
    padding: 0 5px;
    transition: color 0.2s;
}

.radio-controls button:hover {
    color: var(--color-primary);
}

.radio-player.playing .music-note {
    display: inline-block;
    animation: dance 1s infinite alternate;
}

@keyframes dance {
    0% {
        transform: translateY(0) rotate(0);
    }

    100% {
        transform: translateY(-5px) rotate(10deg);
    }
}

.new-badge::before {
    content: "✨";
    font-size: 0.8rem;
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }

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

.log-card {
    display: block;
    background: var(--color-card-bg);
    border: 2px solid var(--color-text);
    border-left: 10px solid var(--color-primary);
    /* Bold accent */
    padding: 25px 30px;
    border-radius: 12px;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.05);
}

.log-card:hover {
    transform: translateX(5px) translateY(-2px);
    box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.1);
    background: #FFF8E1;
    /* Subtle highlight */
}

.log-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    font-size: 0.9rem;
    color: var(--color-secondary);
    margin-bottom: 12px;
}

.tag {
    background: var(--color-bg);
    padding: 3px 10px;
    border-radius: 20px;
    border: 1px solid var(--color-border);
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--color-text);
}

.log-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: var(--color-text);
    line-height: 1.4;
}

.log-card p {
    color: var(--color-secondary);
    font-size: 1rem;
}

/* ==========================================================================
   Article Content
   ========================================================================== */
.article-container {
    max-width: 800px;
    margin: 60px auto;
    background: var(--color-card-bg);
    padding: 60px;
    border: 1px solid var(--color-border);
    box-shadow: 20px 20px 0 rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    position: relative;
}

.article-container::before {
    /* Notebook binder effect */
    content: "";
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: repeating-linear-gradient(to bottom,
            transparent 0,
            transparent 20px,
            #EFEBE9 20px,
            #EFEBE9 40px);
}

.article-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 2px dashed var(--color-primary);
}

.article-header h1 {
    font-size: 3rem;
    color: var(--color-text);
    line-height: 1.2;
}

.article-body h2 {
    font-size: 2rem;
    color: var(--color-text);
    margin: 60px 0 30px;
    position: relative;
    padding-left: 0;
}

.article-body h2::before {
    content: "#";
    color: var(--color-primary);
    margin-right: 10px;
}

.article-body h3 {
    font-size: 1.5rem;
    margin: 40px 0 20px;
    border-left: 5px solid var(--color-secondary);
    padding-left: 15px;
}

.article-body p {
    margin-bottom: 2rem;
    font-size: 1.15rem;
    line-height: 2;
}

.article-body li {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: var(--color-text);
    color: var(--color-card-bg);
    padding: 80px 0;
    text-align: center;
    margin-top: 100px;
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .article-container {
        padding: 30px 20px;
    }

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

    .diagram-container {
        padding: 15px;
    }
}

/* ==========================================================================
   Feature: The Hidden Cats (Game)
   ========================================================================== */
.hidden-cat {
    position: absolute;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.3;
    transition: all 0.3s ease;
    z-index: 10;
    filter: grayscale(100%);
    user-select: none;
}

.hidden-cat:hover {
    opacity: 1;
    transform: scale(1.2) rotate(10deg);
}

.hidden-cat.found {
    opacity: 1;
    filter: grayscale(0%);
    pointer-events: none;
    /* Can't click again */
    animation: bounce 0.5s;
}

.cat-counter {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--color-card-bg);
    border: 2px solid var(--color-primary);
    padding: 10px 15px;
    border-radius: 30px;
    font-weight: bold;
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
    z-index: 999;
    font-size: 1rem;
    color: var(--color-text);
    transition: transform 0.3s;
}

.cat-counter:hover {
    transform: scale(1.1);
}

.cat-counter.complete {
    background: gold;
    color: #5D4037;
    border-color: #5D4037;
    animation: shine 2s infinite;
}

@keyframes bounce {

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

    50% {
        transform: translateY(-20px);
    }
}

/* Sparkle Effect */
.click-sparkle {
    position: fixed;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, gold 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    animation: popFade 0.8s ease-out forwards;
    z-index: 1000;
}

@keyframes popFade {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

/* Victory Modal */
.cat-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.cat-modal-content {
    background: var(--color-card-bg);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 4px solid var(--color-primary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    animation: popIn 0.5s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}