:root {
    --bg-base: #000000;
    --bg-surface: #131314;
    --bg-surface-hover: #1e1f20;
    
    --text-primary: #e3e3e3;
    --text-secondary: #c4c7c5;
    --text-tertiary: #8e918f;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --accent-blue: #a8c7fa;
    --accent-glow: rgba(168, 199, 250, 0.15);
    
    --radius-lg: 32px;
    --radius-md: 24px;
    --radius-sm: 16px;
    
    --ease-standard: cubic-bezier(0.2, 0, 0, 1);
    --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);
}

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

body {
    font-family: 'Google Sans Flex', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.google-symbols {
    font-family: 'Google Symbols';
    font-weight: 300;
    font-style: normal;
    font-size: 24px;
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    font-feature-settings: 'liga';
}

/* Ambient Glow Background */
.ambient-glow {
    position: fixed;
    top: -20vh;
    left: 20vw;
    width: 60vw;
    height: 60vh;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    z-index: -1;
    filter: blur(100px);
    pointer-events: none;
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 500;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-item {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.3s var(--ease-standard);
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
}

/* Main Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Bento Cards */
.bento-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s var(--ease-emphasized), border-color 0.4s var(--ease-emphasized), background 0.4s var(--ease-emphasized);
}

/* Hero Section */
.hero-card {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    width: fit-content;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 500;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

.about-text {
    max-width: 600px;
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s var(--ease-standard);
}

.social-btn:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.social-btn .google-symbols {
    font-size: 20px;
}

/* Projects Grid */
.projects-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 500;
    padding-left: 1rem;
    color: var(--text-primary);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    text-decoration: none;
    color: var(--text-primary);
    padding: 2.5rem;
    display: flex;
    align-items: flex-start;
    border-radius: var(--radius-md);
}

.project-card:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    z-index: 2;
    width: 100%;
}

.project-icon {
    font-size: 32px;
    color: var(--accent-blue);
}

.project-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.project-title {
    font-weight: 500;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.arrow-icon {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 24px;
    color: var(--text-tertiary);
    transition: transform 0.3s var(--ease-standard), color 0.3s var(--ease-standard);
}

.project-card:hover .arrow-icon {
    transform: translateX(4px) translateY(-4px);
    color: var(--text-primary);
}

/* Mouse Tracking Glow inside Cards */
.card-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(168, 199, 250, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s var(--ease-standard);
    z-index: 1;
}

.project-card:hover .card-glow {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-card { padding: 2.5rem; }
    .hero-title { font-size: 2.5rem; }
    .nav-links { gap: 1rem; }
}