/* ============================================
   Java Minecraft Platform — Modern Dark Tech
   CSS Variables, Flexbox/Grid, Mobile-first
   ============================================ */

/* -----------------------------
   CSS Custom Properties (Variables)
   ----------------------------- */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: #16161f;
    --color-bg-hover: #1e1e2a;
    
    /* Text Colors */
    --color-text-primary: #f0f0f5;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6a6a7a;
    
    /* Accent Colors - Neon Green/Purple */
    --color-accent-primary: #00ff88;
    --color-accent-secondary: #7c3aed;
    --color-accent-glow: rgba(0, 255, 136, 0.3);
    --color-accent-purple-glow: rgba(124, 58, 237, 0.3);
    
    /* Status Colors */
    --color-success: #00ff88;
    --color-warning: #ffb800;
    --color-error: #ff4757;
    --color-info: #00d4ff;
    
    /* Borders */
    --color-border: #2a2a3a;
    --color-border-light: #3a3a4a;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 2rem;      /* 32px */
    --text-4xl: 2.5rem;    /* 40px */
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-accent-glow);
    --shadow-glow-purple: 0 0 20px var(--color-accent-purple-glow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index layers */
    --z-dropdown: 100;
    --z-modal: 200;
    --z-tooltip: 300;
}

/* -----------------------------
   Reset & Base Styles
   ----------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Accessibility */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--spacing-4);
}

/* Selection */
::selection {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

/* -----------------------------
   Container
   ----------------------------- */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* -----------------------------
   Typography
   ----------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

code {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: var(--color-bg-tertiary);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    color: var(--color-accent-primary);
}

pre {
    font-family: var(--font-mono);
    background: var(--color-bg-tertiary);
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
    border: 1px solid var(--color-border);
}

/* -----------------------------
   Buttons
   ----------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent-primary), #00cc6a);
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--color-accent-glow);
}

.btn--secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn--secondary:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-border-light);
}

.btn--outline {
    background: transparent;
    color: var(--color-accent-primary);
    border: 1px solid var(--color-accent-primary);
}

.btn--outline:hover:not(:disabled) {
    background: var(--color-accent-glow);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn--ghost:hover:not(:disabled) {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.btn--large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--text-base);
}

.btn--full {
    width: 100%;
}

.btn--small {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-xs);
}

/* -----------------------------
   Header & Navigation
   ----------------------------- */
.header {
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--spacing-6);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-text-primary);
}

.logo img {
    height: 40px;
    width: auto;
    display: block;
}

.logo__icon {
    font-size: var(--text-2xl);
}

.nav__menu {
    display: none;
    list-style: none;
    gap: var(--spacing-6);
}

.nav__link {
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-accent-primary);
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    bottom: -7px;
}

/* Mobile menu open state */
.nav__toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav__toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg) translate(5px, -5px);
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

/* Version Selector */
.version-selector {
    position: relative;
}

.version-selector__dropdown {
    appearance: none;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: var(--spacing-2) var(--spacing-8) var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.version-selector__dropdown:hover {
    border-color: var(--color-border-light);
}

.version-selector__dropdown:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.version-selector::after {
    content: '▼';
    position: absolute;
    right: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    font-size: var(--text-xs);
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: var(--spacing-3);
}

/* User Profile */
.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.user-profile__btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.user-profile__btn:hover {
    background: var(--color-bg-hover);
}

.user-profile__avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
}

.user-profile__name {
    font-weight: 500;
    color: var(--color-text-primary);
    font-size: var(--text-sm);
}

/* -----------------------------
   Hero Section
   ----------------------------- */
.hero {
    padding: var(--spacing-12) 0;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(124, 58, 237, 0.15), transparent 60%);
}

.hero__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--spacing-4);
}

.hero__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-8);
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-6);
    flex-wrap: wrap;
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    text-align: center;
    min-width: 120px;
}

.stat-card__value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-accent-primary);
}

.stat-card__label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* -----------------------------
   Dashboard (Progress)
   ----------------------------- */
.dashboard {
    padding: var(--spacing-8) 0;
}

.dashboard__level {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.level-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow);
}

.level-badge__level {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-bg-primary);
}

.level-badge__label {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.8);
}

.xp-bar {
    flex: 1;
}

.xp-bar__track {
    height: 12px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-2);
}

.xp-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.xp-bar__text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Modules Grid */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-4);
}

.module-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-5);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.module-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-light);
}

.module-card__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.module-card__icon {
    font-size: var(--text-2xl);
}

.module-card__name {
    font-weight: 500;
    color: var(--color-text-primary);
}

.module-card__progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar__value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
    min-width: 40px;
    text-align: right;
}

/* -----------------------------
   Section Title
   ----------------------------- */
.section-title {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 2px solid var(--color-accent-primary);
    display: inline-block;
}

.section-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
}

/* Lessons More */
.lessons-more {
    text-align: center;
    padding: var(--spacing-10) 0;
}

.lessons-more__text {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2);
}

.lessons-more__hint {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* -----------------------------
   Lessons Section
   ----------------------------- */
.lessons {
    padding: var(--spacing-8) 0;
}

.lessons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-6);
}

.lesson-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.lesson-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.lesson-card[data-completed="true"] {
    border-color: var(--color-success);
}

.lesson-card[data-completed="true"]::before {
    content: '✓';
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    width: 24px;
    height: 24px;
    background: var(--color-success);
    color: var(--color-bg-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
}

.lesson-card[data-locked="true"] {
    opacity: 0.7;
    pointer-events: none;
    background: var(--color-bg-tertiary);
}

.lesson-card[data-locked="true"] .lesson-card__lock {
    display: block;
}

.lesson-card:not([data-locked="true"]) .lesson-card__lock {
    display: none;
}

.lesson-card__badge {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    color: var(--color-bg-primary);
    font-size: var(--text-xs);
    font-weight: 600;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    z-index: 10;
    white-space: nowrap;
}

.lesson-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-3);
}

.lesson-card__lock {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--color-text-muted);
    z-index: 10;
    opacity: 0.5;
}

.lesson-card__number {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.lesson-card__xp {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
}

.lesson-card__title {
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-2);
}

.lesson-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
    line-height: 1.5;
}

.lesson-card__tags {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
    flex-wrap: wrap;
}

.tag {
    font-size: var(--text-xs);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

/* -----------------------------
   Playground (Code Editor)
   ----------------------------- */
.playground {
    padding: var(--spacing-8) 0;
}

.playground__back {
    margin-bottom: var(--spacing-4);
}

/* Theory Section - Full Width */
.theory-section-full {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
    margin-bottom: var(--spacing-8);
    max-width: 100%;
}

.theory-section-full h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-6);
    color: var(--color-accent-primary);
    padding-bottom: var(--spacing-4);
    border-bottom: 2px solid var(--color-accent-primary);
}

.theory-section-full .theory-text {
    max-width: 100%;
    font-size: var(--text-base);
}

/* Editor Section */
.editor-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.theory-text {
    font-size: var(--text-base);
    color: var(--color-text-primary);
    line-height: 1.8;
}

.theory-text p {
    margin-bottom: var(--spacing-4);
}

.theory-text strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.theory-text h4 {
    color: var(--color-accent-primary);
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-3);
}

.theory-text h4:first-child {
    margin-top: 0;
}

.theory-text ol,
.theory-text ul {
    margin: var(--spacing-3) 0;
    padding-left: var(--spacing-6);
}

.theory-text li {
    margin-bottom: var(--spacing-2);
    padding-left: var(--spacing-2);
}

.theory-text ul li {
    list-style-type: disc;
}

.theory-text ol li {
    list-style-type: decimal;
}

.code-example {
    margin-top: var(--spacing-4);
    font-size: var(--text-xs);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    overflow-x: auto;
}

.code-example code {
    background: transparent;
    padding: 0;
    color: var(--color-text-primary);
}

.theory-text .task {
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin-top: var(--spacing-5);
}

.theory-text .task strong {
    color: var(--color-accent-primary);
    display: block;
    margin-bottom: var(--spacing-2);
}

.theory-text .task ol {
    margin: 0;
}

.theory-text pre {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    overflow-x: auto;
}

.theory-text pre code {
    background: transparent;
    padding: 0;
    color: var(--color-text-primary);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-5) 0;
    font-size: var(--text-sm);
}

.data-table thead {
    background: var(--color-bg-tertiary);
}

.data-table th {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    font-weight: 600;
    color: var(--color-accent-primary);
    border-bottom: 2px solid var(--color-border);
}

.data-table td {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.data-table tr:hover td {
    background: var(--color-bg-hover);
}

.data-table code {
    background: var(--color-bg-primary);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
}

/* Info boxes */
.theory-text .info-box {
    background: rgba(0, 212, 255, 0.08);
    border-left: 4px solid var(--color-info);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-5) 0;
}

.theory-text .info-box.warning {
    background: rgba(255, 184, 0, 0.08);
    border-left-color: var(--color-warning);
}

.theory-text .info-box p {
    margin: 0;
}

.theory-text .success-box {
    background: rgba(0, 255, 136, 0.08);
    border-left: 4px solid var(--color-success);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-5) 0;
}

.theory-text .success-box p {
    margin: 0;
}

/* Task section separator */
.task-section {
    margin-top: var(--spacing-10);
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-top: 3px solid var(--color-accent-primary);
}

.task-section h4 {
    color: var(--color-accent-primary);
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-4);
}

/* File structure */
.file-structure {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-4) 0;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

.file-item {
    padding: var(--spacing-1) 0;
}

.file-item.folder {
    padding-left: var(--spacing-4);
}

.file-item.file {
    padding-left: var(--spacing-8);
    color: var(--color-text-secondary);
}

/* Task styles */
.theory-text .task-requirements {
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-5) 0;
}

.theory-text .task-requirements ol {
    margin: var(--spacing-3) 0;
    padding-left: var(--spacing-6);
}

.theory-text .task-requirements li {
    margin-bottom: var(--spacing-2);
}

.theory-text .task-hint {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-4) 0;
}

.theory-text .task-hint p {
    margin: 0;
}

.theory-text .task-result {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
    margin: var(--spacing-4) 0;
}

.theory-text .task-result pre {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
}

.theory-text .task-result code {
    color: var(--color-success);
}

.editor-container {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 600px;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.editor-title {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.editor-actions {
    display: flex;
    gap: var(--spacing-2);
}

.monaco-editor {
    height: 600px;
    flex: 1;
    min-height: 500px;
}

.playground-actions {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-6);
}

/* Results Panel */
.results-panel {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.results-title {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.console-output {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    padding: var(--spacing-4);
    min-height: 200px;
    max-height: 300px;
    overflow-y: auto;
    background: #0d0d12;
}

.console-output .log-entry {
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid var(--color-border);
}

.console-output .log-info {
    color: var(--color-text-secondary);
}

.console-output .log-success {
    color: var(--color-success);
}

.console-output .log-error {
    color: var(--color-error);
}

.console-output .log-warning {
    color: var(--color-warning);
}

.console-placeholder {
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-8);
}

/* -----------------------------
   Achievements Section
   ----------------------------- */
.achievements {
    padding: var(--spacing-8) 0;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-6);
}

.achievement-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.achievement-card:hover {
    transform: translateY(-4px);
}

.achievement-card[data-unlocked="true"] {
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
}

.achievement-card__icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.achievement-card__icon--locked {
    filter: grayscale(100%);
    opacity: 0.5;
}

.achievement-card__title {
    font-size: var(--text-base);
    margin-bottom: var(--spacing-2);
    color: var(--color-text-primary);
}

.achievement-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* -----------------------------
   Modal / Dialog
   ----------------------------- */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 0;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-modal);
    margin: 0;
}

.modal::backdrop {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

/* Блокировка прокрутки body при открытом модальном окне */
body:has(.modal[open]) {
    overflow: hidden;
}

.modal__content {
    padding: var(--spacing-6);
}

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
}

.modal__header h2 {
    font-size: var(--text-xl);
}

.modal__close {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.modal__footer {
    margin-top: var(--spacing-6);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2);
}

.form-control {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent-primary);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

.form-range {
    width: 100%;
    height: 6px;
    appearance: none;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 0;
    height: 0;
    background: transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
}

.form-range::-webkit-slider-runnable-track {
    background: var(--color-accent-primary);
    height: 6px;
    border-radius: var(--radius-full);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent-primary);
}

.auth-switch {
    text-align: center;
    margin-top: var(--spacing-5);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Settings Form */
.settings-form {
    /* Styles inherited from form-group */
}

/* -----------------------------
   Footer
   ----------------------------- */
.footer {
    margin-top: var(--spacing-12);
    padding: var(--spacing-8) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.footer__text {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.footer__links {
    display: flex;
    gap: var(--spacing-6);
}

.footer__link {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-accent-primary);
}

/* -----------------------------
   Responsive Breakpoints
   ----------------------------- */

/* Tablet and up (768px+) */
@media (min-width: 768px) {
    .hero__title {
        font-size: var(--text-4xl);
    }
    
    .nav__menu {
        display: flex;
    }
    
    .nav__toggle {
        display: none;
    }
    
    .playground-layout {
        grid-template-columns: 350px 1fr;
    }
    
    .dashboard__level {
        flex-wrap: wrap;
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
    
    .lessons-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .theory-section-full {
        padding: var(--spacing-10);
    }
}

/* Mobile (up to 767px) */
@media (max-width: 767px) {
    .hero__stats {
        flex-direction: column;
        align-items: center;
    }
    
    .stat-card {
        width: 100%;
        max-width: 280px;
    }
    
    .auth-buttons {
        display: none;
    }
    
    .nav__menu {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-secondary);
        padding: var(--spacing-4);
        border-bottom: 1px solid var(--color-border);
        display: none;
    }
    
    .nav__menu.active {
        display: flex;
    }
    
    .theory-section-full {
        padding: var(--spacing-4);
    }
    
    .theory-section-full h3 {
        font-size: var(--text-xl);
    }
    
    .footer__content {
        flex-direction: column;
        text-align: center;
    }
}

/* -----------------------------
   Animations
   ----------------------------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity:1;
        transform: translateY(0);
    }
}

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

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px var(--color-accent-glow);
    }
    50% {
        box-shadow: 0 0 40px var(--color-accent-glow);
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

/* -----------------------------
   Utility Classes
   ----------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }

.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.hidden { display: none !important; }
.flex { display: flex; }
.grid { display: grid; }

/* -----------------------------
   Notifications (Toasts)
   ----------------------------- */
.notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 16px 24px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--text-sm);
    z-index: 10000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 400px;
    animation: slideInRight 0.3s ease-out;
    border: 1px solid;
}

.notification--success {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.15), rgba(0, 204, 106, 0.1));
    border-color: var(--color-success);
    color: var(--color-success);
}

.notification--error {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.15), rgba(255, 71, 87, 0.1));
    border-color: var(--color-error);
    color: var(--color-error);
}

.notification--info {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.1));
    border-color: var(--color-info);
    color: var(--color-info);
}

.notification__icon {
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.notification__message {
    flex: 1;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.notification.hiding {
    animation: slideOutRight 0.3s ease-out forwards;
}

/* -----------------------------
   Profile Modal Styles
   ----------------------------- */
.modal--profile {
    max-width: 700px;
    width: 95%;
    max-height: 85vh;
    border: 1px solid var(--color-border);
    box-shadow: 0 0 60px rgba(0, 255, 136, 0.1), 0 0 100px rgba(124, 58, 237, 0.1);
    z-index: 9999;
}

.modal__content--profile {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.profile-content {
    padding: 0;
    max-height: 75vh;
    overflow-y: auto;
    overflow-x: hidden;
}

.profile-content::-webkit-scrollbar {
    width: 8px;
}

.profile-content::-webkit-scrollbar-track {
    background: var(--color-bg-tertiary);
}

.profile-content::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
    border-radius: var(--radius-full);
}

.profile-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-primary);
}

/* Profile Header - Banner style */
.profile-header {
    position: relative;
    padding: 0;
    margin-bottom: 0;
    border-bottom: none;
}

.profile-banner {
    height: 140px;
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(124, 58, 237, 0.2));
    position: relative;
    overflow: hidden;
}

.profile-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

.profile-header-content {
    position: absolute;
    bottom: -50px;
    left: 0;
    right: 0;
    display: flex;
    align-items: flex-end;
    padding: 0 var(--spacing-6);
    gap: var(--spacing-5);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.4), 0 0 60px rgba(124, 58, 237, 0.3);
    border: 3px solid var(--color-bg-card);
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.profile-avatar::after {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.5;
    filter: blur(10px);
}

.profile-info {
    flex: 1;
    padding-bottom: var(--spacing-4);
}

.profile-name-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.profile-username {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.profile-email {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-3);
}

.profile-level-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

.profile-level {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-bg-primary);
}

.profile-level-text {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.9);
}

/* XP Bar */
.profile-xp-section {
    margin-top: 60px;
    padding: var(--spacing-5) var(--spacing-6);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.profile-xp-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.profile-xp-info {
    min-width: 100px;
}

.profile-xp-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-1);
}

.profile-xp-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
}

.profile-xp-track {
    flex: 1;
    height: 12px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.profile-xp-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
    position: relative;
}

.profile-xp-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.profile-xp-text {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    min-width: 80px;
    text-align: right;
}

/* Edit Username Form */
.profile-edit-section {
    background: linear-gradient(145deg, rgba(0, 255, 136, 0.05), rgba(124, 58, 237, 0.05));
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-lg);
    margin: var(--spacing-6);
}

.profile-edit-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.profile-edit-form .form-group {
    margin-bottom: 0;
}

.profile-edit-form .form-hint {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-2);
}

.profile-edit-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: flex-end;
}

/* Stats Grid */
.profile-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--color-bg-card);
}

.profile-stat {
    background: linear-gradient(145deg, var(--color-bg-tertiary), var(--color-bg-primary));
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.profile-stat:hover {
    transform: translateY(-2px);
    border-color: var(--color-accent-primary);
}

.profile-stat-value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-1);
}

.profile-stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    line-height: 1.3;
}

/* Sections */
.profile-section {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-border);
}

.profile-section:last-child {
    border-bottom: none;
}

.profile-section-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding-bottom: var(--spacing-3);
    border-bottom: 2px solid var(--color-accent-primary);
}

/* Skills */
.profile-skills {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.profile-skill {
    display: grid;
    grid-template-columns: 140px 1fr 50px;
    gap: var(--spacing-3);
    align-items: center;
}

.profile-skill-name {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.profile-skill-bar {
    height: 10px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.profile-skill-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
}

.profile-skill-value {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
    text-align: right;
}

/* Achievements */
.profile-achievements {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: var(--spacing-3);
}

.profile-achievements-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    padding: var(--spacing-8);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
}

.profile-achievement-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-4);
    background: linear-gradient(145deg, var(--color-bg-tertiary), var(--color-bg-primary));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.profile-achievement-item:hover {
    transform: translateY(-3px);
}

.profile-achievement-item[data-unlocked="true"] {
    border-color: var(--color-accent-primary);
    background: linear-gradient(145deg, rgba(0, 255, 136, 0.08), rgba(124, 58, 237, 0.08));
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.1);
}

.profile-achievement-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-2);
    filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.3));
}

.profile-achievement-icon--locked {
    filter: grayscale(100%) drop-shadow(0 0 5px rgba(100, 100, 100, 0.3));
    opacity: 0.5;
}

.profile-achievement-name {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    line-height: 1.3;
}

/* Account Info */
.profile-account {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
}

.profile-account-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-border);
}

.profile-account-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.profile-account-row:first-child {
    padding-top: 0;
}

.profile-account-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.profile-account-value {
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    font-weight: 500;
    text-align: right;
}

/* Modal Header */
.modal__header {
    padding: var(--spacing-5) var(--spacing-6);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal__header h2 {
    font-size: var(--text-xl);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Mobile responsive */
@media (max-width: 650px) {
    .modal--profile {
        max-width: 95%;
        max-height: 95vh;
    }
    
    .profile-header-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding-bottom: var(--spacing-4);
    }
    
    .profile-avatar {
        position: static;
        margin-top: -50px;
    }
    
    .profile-info {
        padding-bottom: 0;
    }
    
    .profile-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .profile-skill {
        grid-template-columns: 1fr;
        gap: var(--spacing-2);
    }
    
    .profile-skill-value {
        text-align: left;
    }
    
    .profile-xp-bar {
        flex-wrap: wrap;
    }
    
    .profile-xp-info {
        width: 100%;
    }
}