/* ========================================
   Paige Julianne Sullivan - Consulting Website
   Clean, Modern, Professional Design
   ======================================== */

:root {
    --color-bg: #0a0a0b;
    --color-bg-secondary: #111113;
    --color-bg-card: #18181b;
    --color-bg-card-hover: #1f1f23;
    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-accent: #22d3ee;
    --color-accent-secondary: #a78bfa;
    --color-border: #27272a;
    --color-border-light: #3f3f46;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-text);
}

.nav-cta {
    padding: 0.5rem 1.25rem !important;
    background: var(--color-primary);
    border-radius: 8px;
    color: white !important;
}

.nav-cta:hover {
    background: var(--color-primary-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

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

.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    padding: 8rem 1.5rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-primary-light);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-titles {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.hero-titles .separator {
    color: var(--color-border-light);
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    max-width: 480px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 10px;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
}

/* Code Block Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.code-block {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    max-width: 100%;
}

.code-header {
    display: flex;
    gap: 8px;
    padding: 1rem 1.25rem;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.code-block pre {
    padding: 1.5rem;
    margin: 0;
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.7;
}

.code-block .keyword { color: #c678dd; }
.code-block .variable { color: #e5c07b; }
.code-block .property { color: #61afef; }
.code-block .string { color: #98c379; }
.code-block .method { color: #61afef; }

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

.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    text-align: center;
}

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

.about {
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 4rem;
    align-items: start;
}

.about-photo {
    position: sticky;
    top: 100px;
}

.headshot {
    width: 100%;
    max-width: 280px;
    border-radius: 16px;
    border: 3px solid var(--color-border);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transition: var(--transition-base);
}

.headshot:hover {
    border-color: var(--color-primary);
    transform: scale(1.02);
}

.about-main {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-text .lead {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.about-text strong {
    color: var(--color-text);
}

.about-text em {
    color: var(--color-primary-light);
    font-style: normal;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.stat {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.75rem;
    text-align: center;
    transition: var(--transition-base);
}

.stat:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ========================================
   Skills Section
   ======================================== */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skill-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-base);
}

.skill-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.skill-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(34, 211, 238, 0.05));
}

.skill-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    margin-bottom: 1.25rem;
}

.skill-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary-light);
}

.skill-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    padding: 0.375rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.skill-tags span:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.skill-tags span.highlight {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

/* ========================================
   Experience Section
   ======================================== */

.experience {
    background: var(--color-bg-secondary);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-border));
}

.timeline-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 3rem;
}

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

.timeline-marker {
    position: absolute;
    left: -5px;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    background: var(--color-bg);
    border: 2px solid var(--color-border-light);
    border-radius: 50%;
    transition: var(--transition-base);
}

.timeline-marker.current {
    border-color: var(--color-primary);
    background: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.timeline-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.75rem;
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--color-border-light);
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-role {
    display: block;
    color: var(--color-primary-light);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.timeline-content > p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.timeline-highlights {
    list-style: none;
    margin-bottom: 1rem;
}

.timeline-highlights li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.timeline-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-tech span {
    padding: 0.25rem 0.625rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--color-primary-light);
    font-family: var(--font-mono);
}

.experience-footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--color-text-muted);
}

.experience-footer .highlight-text {
    color: var(--color-accent);
    font-weight: 500;
    margin-top: 0.5rem;
}

/* ========================================
   Credentials Section
   ======================================== */

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.credential-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
}

.credential-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--color-text);
}

.credential-card ul {
    list-style: none;
}

.credential-card li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.credential-card li:last-child {
    border-bottom: none;
}

.credential-card li strong {
    color: var(--color-text);
}

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

.contact {
    background: var(--color-bg-secondary);
}

.contact-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-intro a {
    color: var(--color-primary-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.contact-intro a:hover {
    color: var(--color-accent);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    text-decoration: none;
    transition: var(--transition-base);
    overflow: hidden;
    min-width: 0;
}

.contact-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(34, 211, 238, 0.1));
    border-radius: 16px;
    margin-bottom: 1.25rem;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary-light);
}

.contact-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.contact-value {
    font-size: 1.1rem;
    color: var(--color-text);
    font-weight: 500;
    word-break: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.contact-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.35rem;
}

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

.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

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

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-tagline {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: 6rem;
    }

    .hero-titles {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-photo {
        position: static;
        display: flex;
        justify-content: center;
    }

    .headshot {
        max-width: 220px;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .timeline::before {
        left: 0;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-titles {
        flex-direction: column;
        gap: 0.25rem;
    }

    .hero-titles .separator {
        display: none;
    }

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

    .btn {
        width: 100%;
    }

    .headshot {
        max-width: 180px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2rem;
    }
}

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

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

.hero-content > * {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.hero-badge { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.2s; }
.hero-titles { animation-delay: 0.3s; }
.hero-tagline { animation-delay: 0.4s; }
.hero-cta { animation-delay: 0.5s; }

.hero-visual {
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

/* ========================================
   Theme Toggle
   ======================================== */

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-base);
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-light);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
}

.theme-toggle:hover svg {
    color: var(--color-text);
}

.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

/* ========================================
   Resume Download
   ======================================== */

.resume-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.resume-download span {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

/* ========================================
   Light Theme
   ======================================== */

[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #f1f5f9;
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
    --color-primary: #4f46e5;
    --color-primary-light: #6366f1;
    --color-primary-dark: #4338ca;
    --color-accent: #0891b2;
    --color-accent-secondary: #7c3aed;
    --color-border: #e2e8f0;
    --color-border-light: #cbd5e1;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.1);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

[data-theme="light"] .hero h1 {
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .code-block {
    box-shadow: var(--shadow-lg), 0 0 40px rgba(79, 70, 229, 0.08);
}

[data-theme="light"] .code-block .keyword { color: #8b5cf6; }
[data-theme="light"] .code-block .variable { color: #d97706; }
[data-theme="light"] .code-block .property { color: #2563eb; }
[data-theme="light"] .code-block .string { color: #059669; }
[data-theme="light"] .code-block .method { color: #2563eb; }

[data-theme="light"] .skill-tags span {
    background: var(--color-bg-secondary);
}

[data-theme="light"] .skill-tags span.highlight {
    background: rgba(79, 70, 229, 0.1);
}

[data-theme="light"] .timeline-tech span {
    background: rgba(79, 70, 229, 0.08);
}

[data-theme="light"] .stat {
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .skill-card {
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .skill-card.featured {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(8, 145, 178, 0.03));
}

[data-theme="light"] .timeline-content {
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .credential-card {
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .contact-card {
    box-shadow: var(--shadow-sm);
}

[data-theme="light"] .contact-icon {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(8, 145, 178, 0.05));
}

@media (max-width: 768px) {
    .theme-toggle {
        margin-left: 0;
        margin-right: 0.5rem;
    }
}