/* ============================================
   THE ECONOMIST'S SKILL TREE V3
   Dark Academia + Pixel Accents Theme
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* Dark Academia Palette - Solid for contrast on light clouds */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #1a1a2e;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222244;

    /* Accent Colors */
    --accent-gold: #d4a855;
    --accent-gold-dim: #8a6d35;
    --accent-green: #4ade80;
    --accent-purple: #a78bfa;
    --accent-blue: #60a5fa;
    --accent-red: #f87171;

    /* Pathway Colors */
    --color-theory: #818cf8;
    --color-math: #4ade80;
    --color-software: #fbbf24;

    /* Text */
    --text-primary: #f5f0e8;
    --text-secondary: #a89f8c;
    --text-muted: #6b6355;
    --text-gold: #d4a855;

    /* Borders & Effects */
    --border-pixel: 3px solid;
    --border-color: #3d352a;
    --shadow-glow: 0 0 20px rgba(212, 168, 85, 0.3);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);

    /* Typography */
    --font-pixel: 'Press Start 2P', monospace;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ========== RESET ========== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: url('BetterClouds.gif') center center / cover fixed;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Context Note */
.context-note {
    max-width: 400px;
    margin: 0 auto 2em;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    color: rgba(0, 0, 0, 0.7);
    line-height: 1.6;
    text-align: center;
}

.context-note em {
    font-style: italic;
}

/* ========== LAYOUT ========== */
.app-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* White Content Container */
.content-container {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    color: #000;
}

/* ========== HEADER ========== */
.header {
    text-align: left;
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-md);
}

.back-link {
    display: inline-block;
    color: #fff;
    text-decoration: none;
    font-family: 'Space Mono', monospace;
    padding: 10px 20px;
    border: 2px solid #fff;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-5px);
}

.title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 2.5em;
    margin: 0 0 0.5em 0;
    line-height: 1.2;
    color: #000;
    text-align: center;
}

.title em {
    font-style: italic;
    font-weight: 400;
}

/* ========== GAME HUD ========== */
.game-hud {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    background: #1a1a1a;
    border-radius: 12px;
    flex-wrap: wrap;
}

.points-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.points-label {
    font-family: var(--font-pixel);
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.points-value {
    font-family: var(--font-pixel);
    font-size: 1.8rem;
    color: var(--accent-gold);
    text-shadow: 0 0 20px rgba(212, 168, 85, 0.5);
    min-width: 60px;
    text-align: center;
}

.add-point-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(180deg, #4a7c4f 0%, #2d5a31 100%);
    border: var(--border-pixel) #6a9f6f;
    border-radius: 4px;
    color: white;
    font-family: var(--font-pixel);
    font-size: 0.6rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
}

.add-point-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(74, 124, 79, 0.4);
    border-color: #8ac48f;
}

.add-point-btn:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 0.8rem;
}

.reset-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.reset-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

/* ========== SECTION TITLES ========== */
.section-title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 1.3rem;
    color: #000;
    margin-bottom: var(--spacing-xs);
}

.section-hint {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    color: rgba(0, 0, 0, 0.6);
    margin-bottom: var(--spacing-lg);
}

/* ========== PATHWAYS SECTION ========== */
.pathways-section {
    margin-bottom: var(--spacing-2xl);
}

.pathways-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

/* Pathway Card */
.pathway-card {
    background: var(--bg-card);
    border: var(--border-pixel) var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pathway-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--pathway-color, var(--accent-gold));
}

.pathway-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.pathway-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.pathway-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pathway-icon {
    font-size: 1.5rem;
}

.pathway-title {
    font-family: var(--font-pixel);
    font-size: 0.7rem;
    color: var(--text-primary);
}

.pathway-points {
    font-family: var(--font-pixel);
    font-size: 0.9rem;
    color: var(--pathway-color, var(--accent-gold));
}

.pathway-bar-container {
    height: 20px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.pathway-bar {
    height: 100%;
    background: linear-gradient(90deg,
            var(--pathway-color, var(--accent-gold)) 0%,
            color-mix(in srgb, var(--pathway-color, var(--accent-gold)) 70%, white) 100%);
    width: 0%;
    transition: width var(--transition-slow);
    position: relative;
}

.pathway-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
}

.pathway-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.allocate-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--pathway-color, var(--border-color));
    border-radius: 4px;
    color: var(--pathway-color, var(--text-secondary));
    font-family: var(--font-pixel);
    font-size: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
}

.allocate-btn:hover:not(:disabled) {
    background: var(--pathway-color, var(--accent-gold));
    color: var(--bg-primary);
}

.allocate-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.view-skills-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.view-skills-btn:hover {
    color: var(--text-gold);
}

/* ========== CLASSES SECTION ========== */
.classes-section {
    margin-bottom: var(--spacing-2xl);
}

.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* Class Card */
.class-card {
    background: var(--bg-card);
    border: var(--border-pixel) var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.class-card.locked {
    opacity: 0.6;
}

.class-card.locked::after {
    content: '🔒';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: 1.2rem;
}

.class-card.unlocked {
    border-color: var(--accent-gold);
    box-shadow: 0 0 15px rgba(212, 168, 85, 0.2);
}

.class-card.unlocked::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gold) 0%, #f0d78c 100%);
}

.class-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}

.class-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.class-icon {
    font-size: 2rem;
}

.class-info {
    flex: 1;
}

.class-name {
    font-family: var(--font-pixel);
    font-size: 0.65rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.class-tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.class-requirements {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.req-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.7rem;
}

.req-badge.met {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.req-badge.unmet {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.req-icon {
    font-size: 0.8rem;
}

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--spacing-md);
    backdrop-filter: blur(4px);
}

.modal-overlay.hidden {
    display: none;
}

.modal {
    background: var(--bg-secondary);
    border: var(--border-pixel) var(--accent-gold);
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-glow);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    color: var(--accent-red);
}

.modal-content {
    padding: var(--spacing-xl);
}

/* Modal: Class Details */
.modal-class-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-class-icon {
    font-size: 3rem;
}

.modal-class-name {
    font-family: var(--font-pixel);
    font-size: 0.9rem;
    color: var(--accent-gold);
    margin-bottom: 4px;
}

.modal-class-tagline {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.modal-section {
    margin-bottom: var(--spacing-lg);
}

.modal-section-title {
    font-family: var(--font-pixel);
    font-size: 0.55rem;
    color: var(--text-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.modal-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.modal-employers {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.employer-tag {
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.modal-salary {
    display: flex;
    gap: var(--spacing-md);
}

.salary-badge {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.salary-badge.us {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
}

.salary-badge.eu {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.modal-abilities {
    list-style: none;
}

.modal-abilities li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.modal-abilities li:last-child {
    border-bottom: none;
}

.hidden-requirement {
    padding: var(--spacing-md);
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: 6px;
    color: var(--accent-red);
    font-size: 0.85rem;
    font-style: italic;
}

/* Modal: Pathway Skills */
.modal-pathway-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-pathway-icon {
    font-size: 2.5rem;
}

.modal-pathway-name {
    font-family: var(--font-pixel);
    font-size: 0.9rem;
    color: var(--pathway-color, var(--accent-gold));
}

.modal-pathway-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.skill-item {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.skill-item:hover {
    border-color: var(--pathway-color, var(--accent-gold));
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.skill-level {
    font-family: var(--font-pixel);
    font-size: 0.5rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.skill-description {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: var(--spacing-sm);
}

.skill-tip {
    padding: var(--spacing-sm);
    background: rgba(212, 168, 85, 0.1);
    border-left: 3px solid var(--accent-gold);
    font-size: 0.75rem;
    color: var(--text-gold);
    font-style: italic;
}

/* ========== FOOTER ========== */
.footer {
    margin-top: auto;
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.footer-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ========== ANIMATIONS ========== */
@keyframes pulse-gold {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(212, 168, 85, 0.3);
    }

    50% {
        box-shadow: 0 0 25px rgba(212, 168, 85, 0.6);
    }
}

@keyframes unlock-flash {
    0% {
        background-color: rgba(212, 168, 85, 0.3);
    }

    100% {
        background-color: transparent;
    }
}

.class-card.just-unlocked {
    animation: unlock-flash 0.6s ease-out, pulse-gold 2s ease-in-out infinite;
}

.point-added {
    animation: pulse-gold 0.5s ease-out;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .title {
        font-size: 1rem;
    }

    .subtitle {
        font-size: 0.5rem;
    }

    .game-hud {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .points-display {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pathways-grid,
    .classes-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 0.65rem;
    }

    .modal {
        max-height: 90vh;
        margin: var(--spacing-sm);
    }

    .modal-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .title {
        font-size: 0.85rem;
    }

    .points-value {
        font-size: 1.4rem;
    }

    .add-point-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .pathway-card,
    .class-card {
        padding: var(--spacing-md);
    }
}