/* ========================================
   MODERN PORTFOLIO - COMPLETE REDESIGN
   ======================================== */

:root {
    /* Light Theme (Default) - Modern, energetic */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fb;
    --color-bg-tertiary: #f0f2f8;
    --color-text-primary: #1a1a2e;
    --color-text-secondary: #4a5568;
    --color-text-tertiary: #718096;
    
    /* Accent Colors - Bright & Energetic */
    --color-accent-primary: #00d4ff;      /* Bright Cyan */
    --color-accent-secondary: #00ff7f;    /* Neon Green */
    --color-accent-tertiary: #ff006e;     /* Hot Pink */
    --color-accent-hover: #0099cc;
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.08);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-family-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 
                        Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 
                           'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'Fira Code', 'Courier New', Courier, monospace;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
body.dark-theme {
    --color-bg-primary: #0f1419;
    --color-bg-secondary: #1a1f26;
    --color-bg-tertiary: #252d37;
    --color-text-primary: #e4e6eb;
    --color-text-secondary: #a8adb8;
    --color-text-tertiary: #7a8292;
    --color-accent-primary: #00d4ff;
    --color-accent-secondary: #00ff7f;
    --color-accent-tertiary: #ff006e;
    --color-accent-hover: #00a8cc;
    --color-border: #3a4250;
    --color-shadow: rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-main);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    font-size: var(--font-size-base);
    position: relative;
    overflow-x: hidden;
}

/* Subtle animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 85% 5%, rgba(0, 212, 255, 0.08) 0%, transparent 30%),
        radial-gradient(circle at 10% 90%, rgba(0, 255, 127, 0.06) 0%, transparent 35%);
    pointer-events: none;
    z-index: -1;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: 700;
}

h1 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h2 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h3 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

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

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

code {
    background-color: var(--color-bg-tertiary);
    color: var(--color-accent-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: var(--font-family-mono);
    font-size: 0.9em;
}

pre {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: var(--spacing-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

pre code {
    background-color: transparent;
    color: var(--color-text-primary);
    padding: 0;
    font-size: 0.875rem;
}

/* ========================================
   NAVIGATION - MINIMAL HEADER
   ======================================== */

.navbar {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 1.5rem;
    box-shadow: 0 2px 8px var(--color-shadow);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--color-text-primary);
    letter-spacing: -0.5px;
    font-family: var(--font-family-heading);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}

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

.nav-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-icon-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--color-text-primary);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.nav-icon-btn:hover {
    color: var(--color-accent-primary);
}

/* GitHub SVG Icon */
.github-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform var(--transition-fast);
}

.nav-icon-btn:hover .github-icon svg {
    transform: scale(1.1);
}

/* Theme Toggle - Moon/Sun Icons */
.theme-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-normal);
}

.theme-icon.rotate {
    transform: rotate(180deg);
}

.hamburger-menu {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    width: 28px;
    animation: breathe 2s ease-in-out infinite;
}

.hamburger-menu span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.hamburger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
    animation: none;
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
    animation: none;
}

@keyframes breathe {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* ========================================
   SIDEBAR MENU
   ======================================== */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    z-index: 99;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
    padding-top: 4rem;
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-menu {
    list-style: none;
    padding: 1rem 0;
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    color: var(--color-accent-primary);
    background-color: rgba(0, 212, 255, 0.1);
    border-left-color: var(--color-accent-primary);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 98;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* ========================================
   HEADER SECTION - COMPACT
   ======================================== */

.header {
    text-align: center;
    padding: 2rem var(--spacing-lg) 1.5rem;
}

.header-title {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0;
    line-height: 1.2;
}

.header-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.3px;
    margin: 0;
    font-weight: 500;
}

/* ========================================
   HERO SECTION - MINIMAL & ENERGETIC
   ======================================== */

.hero {
    background-color: transparent;
    border: none;
    padding: 1.5rem var(--spacing-lg);
    margin: 1rem var(--spacing-lg) 2rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 255, 127, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h2 {
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}

.hero p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero p:last-child {
    margin-bottom: 0;
}

/* ========================================
   SEARCH SECTION
   ======================================== */

.search-section {
    margin: 2rem var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
}

.search-box {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-family-main);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
}

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

.recommendation-card {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-md);
    border-radius: 0.5rem;
    border-left: 3px solid var(--color-accent-primary);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.recommendation-card:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.recommendation-card h4 {
    color: var(--color-accent-primary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.recommendation-card p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ========================================
   QUICK LINKS SECTION
   ======================================== */

.quick-links {
    margin: 2rem var(--spacing-lg);
}

.quick-links h2 {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* ========================================
   CARD-BASED LAYOUT - MODERN
   ======================================== */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: 0 12px 24px var(--color-shadow);
    transform: translateY(-4px);
}

.card:hover::before {
    transform: scaleX(1);
}

.card h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.card p {
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.card p:last-child {
    margin-bottom: 0;
}

.card pre {
    margin: var(--spacing-md) 0 0 0;
    position: relative;
    z-index: 1;
}

/* ========================================
   CV MODAL - FULL SCREEN
   ======================================== */

.cv-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-primary);
    z-index: 2000;
    flex-direction: column;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.cv-modal.active {
    display: flex;
}

.cv-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 1.5rem;
    border-bottom: 1px solid var(--color-border);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.cv-modal-header h2 {
    margin: 0;
    color: var(--color-accent-primary);
    font-size: 1.5rem;
    flex: 1;
    min-width: 200px;
}

.cv-search-bar {
    flex: 1;
    min-width: 250px;
    max-width: 400px;
}

.cv-search-input {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: var(--font-family-main);
    transition: all var(--transition-fast);
}

.cv-search-input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.cv-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0.5rem;
}

.cv-close-btn:hover {
    color: var(--color-accent-primary);
}

.cv-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) 1.5rem;
}

.cv-modal-body iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ========================================
   CONTAINER & LAYOUT
   ======================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-accent-primary);
    color: var(--color-text-primary);
}

/* ========================================
   LISTS & CONTENT
   ======================================== */

ul {
    margin-bottom: var(--spacing-md);
    padding-left: 1.5rem;
}

li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.compact-list {
    margin-bottom: 0;
}

.compact-list li {
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 1.5rem;
    text-align: center;
    margin-top: var(--spacing-xl);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

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

.footer a:hover {
    text-decoration: underline;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xl: 1.75rem;
        --font-size-lg: 1.25rem;
        --spacing-lg: 1.5rem;
    }
    
    .header-title {
        font-size: 1.5rem;
    }

    .header-subtitle {
        font-size: 0.9rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .games-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .game-card iframe {
        height: 400px;
    }
    
    .game-toolbar {
        gap: 0.5rem;
        padding: 0.5rem;
    }
    
    .mute-btn,
    .fullscreen-btn,
    .exit-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }

    .search-section {
        margin: 1.5rem var(--spacing-md);
        padding: var(--spacing-md);
    }

    .recommendations {
        grid-template-columns: 1fr;
    }
    
    .cv-modal-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .cv-search-bar {
        width: 100%;
        max-width: none;
    }

    .quick-links {
        margin: 1.5rem var(--spacing-md);
    }

    .hero {
        margin: 1rem var(--spacing-md) 1.5rem;
        padding: 1rem var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-lg: 1.1rem;
        --font-size-md: 1rem;
        --spacing-lg: 1rem;
    }

    .navbar {
        padding: 0.75rem 1rem;
    }
    
    .header {
        padding: 1.5rem 1rem 1rem;
    }

    .header-title {
        font-size: 1.3rem;
    }

    .header-subtitle {
        font-size: 0.85rem;
    }
    
    .card {
        padding: var(--spacing-md);
    }

    .search-input {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .cv-search-input {
        font-size: 16px;
    }

    .cv-modal-header h2 {
        font-size: 1.2rem;
    }

    .sidebar {
        width: 250px;
    }

    .recommendations {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .recommendation-card {
        padding: var(--spacing-sm);
    }
    
    .game-card iframe {
        height: 300px;
    }
    
    .game-toolbar {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .mute-btn,
    .fullscreen-btn,
    .exit-btn {
        width: 100%;
        padding: 0.5rem;
        font-size: 0.7rem;
    }
}

/* ========================================
   UTILITIES
   ======================================== */

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

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

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

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: 4px;
}

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

/* ========================================
   GAMES SECTION
   ======================================== */

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.game-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all var(--transition-normal);
    position: relative;
}

.game-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
    z-index: 10;
}

.game-card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: 0 12px 24px var(--color-shadow);
    transform: translateY(-4px);
}

.game-card:hover::before {
    transform: scaleX(1);
}

.game-toolbar {
    display: flex;
    gap: 0.75rem;
    padding: var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    z-index: 5;
}

.mute-btn,
.fullscreen-btn,
.exit-btn {
    flex: 1;
    padding: 0.6rem 1rem;
    background-color: var(--color-accent-primary);
    color: white;
    border: none;
    border-radius: 0.4rem;
    font-family: var(--font-family-main);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mute-btn:hover,
.fullscreen-btn:hover {
    background-color: var(--color-accent-hover);
    transform: scale(1.02);
}

.exit-btn {
    background-color: var(--color-accent-tertiary);
    flex: 0.8;
}

.exit-btn:hover {
    background-color: #ff0055;
    transform: scale(1.02);
}

.game-card iframe {
    width: 100%;
    height: 540px;
    border: none;
    display: block;
}

.mute-notice {
    font-size: 0.8rem;
    text-align: center;
    padding: 0.75rem var(--spacing-md);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-tertiary);
    border-top: 1px solid var(--color-border);
}

.games-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.games-header p {
    font-size: 1rem;
    color: var(--color-text-secondary);
}