/* ===================================
   Brandon Dowling - Personal Website
   Refined, Modern, Beautiful
   =================================== */

:root {
    /* Colors - Sophisticated palette */
    --color-bg: #f8f7f4;
    --color-bg-alt: #ffffff;
    --color-text: #1c1c1c;
    --color-text-muted: #5c5c5c;
    --color-text-subtle: #8c8c8c;
    --color-accent: #2d5a7b;
    --color-accent-light: #3d7aa8;
    --color-accent-subtle: rgba(45, 90, 123, 0.08);
    --color-border: rgba(0, 0, 0, 0.08);
    --color-border-strong: rgba(0, 0, 0, 0.12);
    
    /* Typography */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'DM Serif Display', Georgia, serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 150ms var(--ease-out);
    --transition-base: 300ms var(--ease-out);
    --transition-slow: 500ms var(--ease-out);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

p {
    margin-bottom: 1.25em;
}

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

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

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

strong {
    font-weight: 600;
}

/* ===================================
   Navigation
   =================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(248, 247, 244, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.01em;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
    border-radius: 1px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .nav-container {
        height: 64px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--space-lg) var(--space-md);
        gap: 0;
        transform: translateX(100%);
        opacity: 0;
        transition: all var(--transition-base);
    }
    
    .nav-links.active {
        transform: translateX(0);
        opacity: 1;
    }
    
    .nav-links li {
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-links a {
        display: block;
        padding: var(--space-md) 0;
        font-size: 1.125rem;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 100px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-text);
    color: white;
}

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

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
}

.btn-ghost:hover {
    border-color: var(--color-text);
    color: var(--color-text);
}

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

.btn-outline:hover {
    background: var(--color-text);
    color: white;
    border-color: var(--color-text);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(72px + var(--space-xl)) var(--space-md) var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(45, 90, 123, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(45, 90, 123, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 680px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-photo {
    margin-bottom: var(--space-lg);
}

.hero-photo img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
    border: 4px solid white;
}

.hero-name {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.01em;
}

.hero-summary {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   Page Header
   =================================== */

.page-header {
    padding-top: calc(72px + var(--space-xl));
    padding-bottom: var(--space-lg);
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.page-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--space-xl) 0 var(--space-2xl);
}

/* ===================================
   About Page
   =================================== */

.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.about-photo img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.about-content .lead {
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

.about-content p {
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

.about-cta {
    margin-top: var(--space-lg);
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .about-photo {
        max-width: 200px;
        margin: 0 auto;
    }
    
    .about-content {
        text-align: center;
    }
    
    .about-cta {
        display: flex;
        justify-content: center;
    }
}

/* ===================================
   Experience Timeline
   =================================== */

.timeline {
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-border));
    border-radius: 1px;
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--space-lg));
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    border: 3px solid var(--color-bg);
    box-shadow: 0 0 0 2px var(--color-accent);
    transform: translateX(-5px);
}

.timeline-content {
    background: var(--color-bg-alt);
    padding: var(--space-md);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}

.timeline-date {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-xs);
}

.timeline-content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.timeline-company {
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.timeline-content p:last-child {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.65;
}

@media (max-width: 600px) {
    .timeline {
        padding-left: var(--space-md);
    }
    
    .timeline-marker {
        left: calc(-1 * var(--space-md));
        width: 10px;
        height: 10px;
        transform: translateX(-4px);
    }
}

/* ===================================
   Education Section
   =================================== */

.education-section {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.education-item {
    background: var(--color-bg-alt);
    padding: var(--space-md);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-base);
}

.education-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}

.education-year {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-xs);
}

.education-item h3 {
    font-size: 1.0625rem;
    margin-bottom: var(--space-xs);
}

.education-school {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 4px;
}

.education-honors {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 500;
}

@media (max-width: 600px) {
    .education-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Contact Page
   =================================== */

.contact-grid {
    display: grid;
    gap: var(--space-sm);
    max-width: 500px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-base);
}

.contact-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--color-text);
}

.contact-card:hover .contact-arrow {
    transform: translateX(4px);
    color: var(--color-accent);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--color-accent-subtle);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-details {
    flex: 1;
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 2px;
}

.contact-value {
    font-weight: 500;
    font-size: 1rem;
}

.contact-arrow {
    font-size: 1.25rem;
    color: var(--color-text-subtle);
    transition: all var(--transition-fast);
}

.resume-section {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.resume-section p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

/* ===================================
   Footer
   =================================== */

.footer {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-alt);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-link {
    color: var(--color-text-muted);
    font-weight: 500;
}

.footer-link:hover {
    color: var(--color-accent);
}

@media (max-width: 480px) {
    .footer-content {
        flex-direction: column;
        gap: var(--space-xs);
        text-align: center;
    }
}

/* ===================================
   Animations
   =================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Responsive Adjustments
   =================================== */

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding-top: calc(64px + var(--space-xl));
        padding-bottom: var(--space-xl);
    }
    
    .hero-photo img {
        width: 120px;
        height: 120px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .page-header {
        padding-top: calc(64px + var(--space-lg));
        text-align: left;
    }
    
    .main {
        padding: var(--space-lg) 0 var(--space-xl);
    }
}

/* ===================================
   Print Styles
   =================================== */

@media print {
    .nav, .hero-cta, .about-cta, .resume-section {
        display: none;
    }
    
    .hero, .page-header, .main {
        padding: var(--space-md) 0;
    }
    
    body {
        background: white;
    }
}