/* 
 * Main Stylesheet for Tim Moore's Personal Website
 * Apple-inspired design system
 */

/* CSS Reset & Base Styles */
:root {
    /* Color Variables */
    --color-background: #ffffff;
    --color-text: #1d1d1f;
    --color-text-secondary: #86868b;
    --color-primary: #0071e3;
    --color-primary-hover: #0077ed;
    --color-secondary: #f5f5f7;
    --color-border: #d2d2d7;
    --color-success: #28cd41;
    --color-error: #ff3b30;
    
    /* Typography */
    --font-primary: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-md);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(210, 210, 215, 0.5);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
    padding: 0 var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-primary);
    background-color: rgba(0, 113, 227, 0.05);
}

.nav-links a.active {
    color: var(--color-primary);
}

.login-btn {
    background-color: var(--color-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.login-btn:hover {
    background-color: var(--color-primary-hover) !important;
    color: white !important;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 var(--spacing-lg);
    background: linear-gradient(to bottom, #f5f5f7 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 64px; /* Account for fixed header */
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.hero .subtitle {
    animation: fadeInUp 1s ease-out 0.2s forwards;
    opacity: 0;
}

.cta-button {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    margin-top: var(--spacing-md);
    animation: fadeInUp 1s ease-out 0.4s forwards;
    opacity: 0;
}

.cta-button:hover {
    background-color: var(--color-primary-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.cta-button.secondary:hover {
    background-color: #e8e8ed;
    color: var(--color-text);
}

/* About Section */
.about {
    padding: var(--spacing-xxl) 0;
    background-color: white;
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.profile-image {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.profile-image:hover {
    transform: scale(1.02);
}

.text-link {
    display: inline-block;
    font-weight: 500;
    margin-top: var(--spacing-md);
}

/* Skills Section */
.skills {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.skill-card {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.skill-icon {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.skill-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* CTA Section */
.cta {
    padding: var(--spacing-xxl) 0;
    text-align: center;
    background-color: white;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* Footer */
footer {
    background-color: var(--color-secondary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-logo a {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.footer-links ul {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--color-primary);
}

.copyright {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .about-content {
        flex-direction: column-reverse;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links ul {
        justify-content: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: var(--spacing-md);
    }
    
    .hero {
        height: auto;
        min-height: 100vh;
        padding: var(--spacing-xxl) var(--spacing-md);
    }
}