:root {
    /* Google Brand Colors */
    --g-blue: #4285F4;
    --g-red: #DB4437;
    --g-yellow: #F4B400;
    --g-green: #0F9D58;

    /* Neutral Colors */
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --bg-color: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #dadce0;

    /* Spacing */
    --spacing-unit: 8px;
    --border-radius: 8px;

    /* Shadows */
    --shadow-1: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-2: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
}

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

body {
    font-family: 'Google Sans', 'Roboto', sans-serif;
    color: var(--text-primary);
    line-height: 1.5;
    background-color: var(--bg-color);
}

/* Utility Classes */
.g-blue {
    color: var(--g-blue);
}

.g-red {
    color: var(--g-red);
}

.g-yellow {
    color: var(--g-yellow);
}

.g-green {
    color: var(--g-green);
}

/* App Bar */
.app-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: white;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 500;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--g-blue);
    font-size: 28px;
}

nav a {
    text-decoration: none;
    color: var(--text-secondary);
    margin-left: 24px;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--g-blue);
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 80px 20px;
    background-color: var(--bg-secondary);
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 16px;
    font-weight: 700;
}

.subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-button {
    display: inline-block;
    background-color: var(--g-blue);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    box-shadow: var(--shadow-1);
    transition: box-shadow 0.2s, background-color 0.2s;
}

.cta-button:hover {
    box-shadow: var(--shadow-2);
    background-color: #3367d6;
}

/* Sections */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

h2 {
    font-size: 32px;
    margin-bottom: 40px;
    text-align: center;
    font-weight: 400;
    color: var(--text-primary);
}

/* Grid Layouts */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

/* Cards */
.card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-1);
    transform: translateY(-2px);
    border-color: transparent;
}

.card h3 {
    margin-bottom: 12px;
    font-size: 20px;
}

.card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
}

/* Skills */
#skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.skill-chip {
    background-color: white;
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 14px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.skill-chip:hover {
    background-color: var(--bg-secondary);
    border-color: var(--g-blue);
    color: var(--g-blue);
}

/* Contact */
.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.contact-item:hover {
    background-color: var(--bg-secondary);
    color: var(--g-blue);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

.tiny-icon {
    font-size: 14px;
    vertical-align: middle;
    color: var(--g-red);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 36px;
    }

    nav {
        display: none;
        /* Simple hide for now, could add hamburger later */
    }
}