/* ==========================================================================
   Dan Meador - Personal Site
   ========================================================================== */

/* ==========================================================================
   CSS Variables & Theming
   ========================================================================== */

:root {
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Font Sizes - Consistent Scale */
    --text-xs: 0.8rem;      /* 12.8px - meta, labels, tags */
    --text-sm: 0.875rem;    /* 14px - secondary text */
    --text-base: 1rem;      /* 16px - body text */
    --text-lg: 1.125rem;    /* 18px - emphasized body */
    --text-xl: 1.25rem;     /* 20px - card titles */
    --text-2xl: 1.5rem;     /* 24px - section headers */
    --text-3xl: 1.75rem;    /* 28px - large headers */

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --max-width: 1100px;
    --content-width: 720px;
}

/* Dark theme (default) */
:root,
[data-theme="dark"] {
    --bg-primary: #0a0a0c;
    --bg-secondary: #0f0f12;
    --bg-tertiary: #161619;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a24;

    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;

    --accent: #f59e0b;
    --accent-secondary: #fbbf24;
    --accent-dim: rgba(245, 158, 11, 0.12);
    --accent-glow: rgba(245, 158, 11, 0.4);

    /* New: secondary accent for depth */
    --accent-alt: #3b82f6;
    --accent-alt-dim: rgba(59, 130, 246, 0.12);
    --accent-alt-glow: rgba(59, 130, 246, 0.3);

    /* Gradient for signature elements */
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #f97316 50%, #3b82f6 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(59, 130, 246, 0.08) 100%);

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-glow: rgba(245, 158, 11, 0.3);

    --nav-bg: rgba(10, 10, 12, 0.9);

    /* Dot grid pattern */
    --dot-color: rgba(255, 255, 255, 0.03);
}


/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;

    /* Signature dot grid pattern */
    background-image: radial-gradient(var(--dot-color) 1px, transparent 1px);
    background-size: 24px 24px;
    background-attachment: fixed;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

em {
    font-style: normal;
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-dim);
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: all 0.3s ease;
}

.nav-logo:hover {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}


.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: all 0.2s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: transform 0.2s;
}


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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(80px + var(--space-4xl)) var(--space-xl) var(--space-4xl);
}

.hero-content {
    max-width: 680px;
}


.hero-title {
    margin-bottom: var(--space-2xl);
}

.hero-name {
    display: block;
    font-size: clamp(2.75rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: var(--space-md);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    display: block;
    font-size: clamp(1.15rem, 2.5vw, 1.4rem);
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.6;
    min-height: 1.6em;
}

.typewriter-cursor {
    color: var(--accent);
    animation: blink 1s infinite;
    font-weight: 300;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Signature animated gradient line */
.hero-accent-line {
    width: 80px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
    margin-bottom: var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero-accent-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.link-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.link-pill:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 20px -5px var(--accent-glow);
    transform: translateY(-2px);
}

.link-pill svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.link-pill:hover svg {
    transform: scale(1.1);
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-4xl) var(--space-xl);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.section-number {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

.section-header h2 {
    font-size: var(--text-3xl);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.section-intro {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.last-updated {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-left: var(--space-sm);
    opacity: 0.7;
}

.shelf-toggle {
    font-family: var(--font-mono);
    font-size: inherit;
    color: var(--accent);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s ease;
    padding: 0;
}

.shelf-toggle:hover {
    color: var(--accent-secondary);
}

.shelf-grid {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.shelf-grid.shelf-hidden {
    display: none;
    opacity: 0;
    transform: translateY(10px);
}

.shelf-grid.shelf-visible {
    display: grid;
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about-content {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about-photo {
    position: sticky;
    top: 120px;
}

.headshot-placeholder {
    width: 220px;
    height: 280px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px -8px rgba(0, 0, 0, 0.5);
}

/* Gradient border effect */
.headshot-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 2px;
    background: var(--gradient-accent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.6;
    transition: opacity 0.4s ease;
}


.headshot-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    position: relative;
    z-index: 1;
}

.headshot-fallback {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-tertiary);
    z-index: 0;
}

.headshot-placeholder.no-image .headshot-fallback {
    z-index: 1;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
    font-size: var(--text-base);
}

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


/* ==========================================================================
   Projects Section
   ========================================================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--space-xl);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: var(--gradient-accent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.35),
                0 0 50px -12px var(--accent-glow);
}

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

.project-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.project-label--live::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
    animation: pulse-live 2s ease-in-out infinite;
}

@keyframes pulse-live {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.project-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
    font-size: var(--text-sm);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.project-tags span {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--bg-tertiary);
    border-radius: 4px;
    color: var(--text-tertiary);
    transition: all 0.2s ease;
}

.project-card:hover .project-tags span {
    background: var(--accent-dim);
    color: var(--accent);
}

.project-card {
    cursor: pointer;
}

/* ==========================================================================
   Project Modal
   ========================================================================== */

.project-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--space-xl);
    max-width: 560px;
    width: calc(100% - var(--space-xl) * 2);
    max-height: calc(100vh - var(--space-xl) * 2);
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.project-modal.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--bg-card-hover);
}

.modal-header {
    margin-bottom: var(--space-lg);
}

.modal-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    display: block;
    margin-bottom: var(--space-sm);
}

.modal-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.modal-preview {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: var(--space-lg);
    overflow: hidden;
    position: relative;
}

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

.modal-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-preview-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.modal-preview-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    background: var(--bg-tertiary);
    transition: opacity 0.3s ease;
}

.modal-preview-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-description {
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.modal-tags span {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    padding: var(--space-xs) var(--space-sm);
    background: var(--accent-dim);
    border-radius: 4px;
    color: var(--accent);
}

.modal-links {
    display: flex;
    gap: var(--space-md);
}

.modal-links a,
.modal-links span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
    flex: 1;
    min-width: 0;
}

.modal-links .btn-site {
    background: var(--accent);
    color: #0c0c0e;
}

.modal-links .btn-site:hover {
    background: var(--accent-secondary);
    box-shadow: 0 0 20px -5px var(--accent-glow);
}

.modal-links .btn-github {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.modal-links .btn-github:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px -5px var(--accent-glow);
}

.modal-links .btn-site.disabled {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    cursor: not-allowed;
    pointer-events: none;
    opacity: 0.5;
}

/* ==========================================================================
   Media Section
   ========================================================================== */


/* Curated shelf - Editorial layout */
.shelf-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.shelf-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.shelf-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: var(--gradient-accent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.shelf-item:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.4),
                0 0 40px -12px var(--accent-glow);
}

.shelf-item:hover::before {
    opacity: 1;
}

/* Featured item - spans full width */
.shelf-item.featured {
    grid-column: 1 / -1;
    padding: var(--space-xl);
}

.shelf-item.featured .shelf-cover {
    width: 140px;
    height: 200px;
    flex-shrink: 0;
}

.shelf-item.featured .shelf-info h4 {
    font-size: var(--text-lg);
}

.shelf-cover {
    width: 100px;
    height: 150px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--bg-tertiary);
    box-shadow: 0 4px 16px -4px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.shelf-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.shelf-cover--square {
    height: 100px;
    border-radius: 10px;
}

.shelf-item.featured .shelf-cover--square {
    height: 140px;
}

.shelf-info {
    position: relative;
    z-index: 1;
}

.shelf-info h4 {
    font-size: var(--text-base);
    font-weight: 500;
    margin-bottom: var(--space-xs);
    line-height: 1.4;
    color: var(--text-primary);
}

.shelf-author {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-bottom: var(--space-sm);
}

.shelf-type {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 600px) {
    body {
        background-attachment: scroll;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .modal-links {
        flex-direction: column;
    }

    .shelf-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .shelf-item {
        padding: var(--space-md);
        gap: var(--space-md);
    }

    .shelf-item.featured {
        padding: var(--space-lg);
    }

    .shelf-item.featured .shelf-cover {
        width: 110px;
        height: 160px;
    }

    .shelf-cover {
        width: 80px;
        height: 120px;
    }

    .shelf-cover--square {
        height: 80px;
    }

    .shelf-item.featured .shelf-cover--square {
        height: 110px;
    }

    .shelf-info h4 {
        font-size: var(--text-sm);
    }

    .shelf-item.featured .shelf-info h4 {
        font-size: var(--text-base);
    }
}


/* ==========================================================================
   CTA / Contact Section
   ========================================================================== */

.cta-section {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    border-top: 1px solid var(--border);
    transition: border-color 0.3s ease;
}

.cta-content {
    max-width: 480px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
    font-size: var(--text-base);
}

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

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--accent);
    color: #0c0c0e;
    font-weight: 500;
    font-size: var(--text-sm);
    border-radius: 6px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.btn-primary:hover {
    background: var(--accent-secondary);
    box-shadow: 0 0 30px -5px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--text-sm);
    border-radius: 6px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent);
    box-shadow: 0 0 20px -5px var(--accent-glow);
    transform: translateY(-2px);
}

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

.footer {
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl);
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-content > * {
    animation: fadeIn 0.6s ease-out backwards;
}

.hero-accent-line { animation-delay: 0.05s; }
.hero-title { animation-delay: 0.15s; }
.hero-links { animation-delay: 0.3s; }

.section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 768px) {
    :root {
        /* Keep base at 16px for readability, adjust scale */
        --text-xs: 0.813rem;    /* 13px min for mobile readability */
        --text-sm: 0.875rem;    /* 14px */
        --text-base: 1rem;      /* 16px */
        --text-lg: 1.063rem;    /* 17px */
        --text-xl: 1.125rem;    /* 18px */
        --text-2xl: 1.375rem;   /* 22px */
        --text-3xl: 1.5rem;     /* 24px */
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--nav-bg);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid var(--border);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: calc(80px + var(--space-2xl));
        padding-bottom: var(--space-2xl);
    }

    .section {
        padding: var(--space-3xl) var(--space-md);
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .about-photo {
        justify-self: center;
        position: static;
    }

    .headshot-placeholder {
        width: 180px;
        height: 230px;
    }

    .hero-links {
        flex-direction: column;
    }

    .link-pill {
        justify-content: center;
    }

    .cta-links {
        flex-direction: column;
    }

}