/* ============================================
   Charles Culver - Portfolio Styles
   Dark, Modern, Authoritative
   ============================================ */

:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --bg-card: #1c1c1f;
    --bg-card-hover: #232326;

    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);

    --success: #22c55e;
    --border: #27272a;
    --border-light: #3f3f46;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* Subtle noise texture overlay */
.noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.015;
    z-index: 1000;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

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

ul {
    list-style: none;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.nav-cta {
    background: var(--accent);
    color: var(--text-primary) !important;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    padding: 120px 24px 80px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 50px var(--accent-glow);
}

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

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

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

.terminal {
    width: 100%;
    max-width: 480px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-header {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

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

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca40; }

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
}

.terminal-line {
    color: var(--text-secondary);
}

.prompt {
    color: var(--success);
    margin-right: 8px;
}

.terminal-line.output {
    color: var(--text-muted);
    padding-left: 20px;
}

.terminal-line.output.success {
    color: var(--success);
}

.cursor {
    animation: blink 1s infinite;
}

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

/* Sections */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 48px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.about-text .lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.highlight {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: border-color var(--transition), transform var(--transition);
}

.highlight:hover {
    border-color: var(--border-light);
    transform: translateX(4px);
}

.highlight-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: 12px;
}

.highlight h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.highlight p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Expertise Section */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.expertise-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

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

.expertise-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: 20px;
}

.expertise-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.expertise-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.expertise-list li {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    padding-left: 16px;
    position: relative;
}

.expertise-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
}

/* Experience Section */
.experience {
    background: var(--bg-secondary);
}

.experience-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    padding: 40px;
    margin-bottom: 40px;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.experience-role h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.experience-org {
    color: var(--text-secondary);
}

.experience-meta {
    text-align: right;
}

.experience-date {
    display: block;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 4px;
}

.experience-location {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.achievements {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.achievement {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.achievement-marker {
    width: 8px;
    height: 8px;
    background: var(--border-light);
    border-radius: 50%;
    margin-top: 8px;
    flex-shrink: 0;
}

.achievement p {
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.achievement.featured {
    background: var(--accent-glow);
    padding: 16px;
    margin: 8px -16px;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
}

.achievement.featured .achievement-marker {
    background: var(--accent);
}

.achievement.featured p {
    color: var(--text-primary);
}

/* Credentials */
.credentials {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.credential-group {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.credential-group h4 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 12px;
}

.credential-group p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.credential-group strong {
    color: var(--text-primary);
}

/* Contact Section */
.contact {
    text-align: left;
}

.contact .section-title::after {
    left: 0;
    transform: none;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 48px;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    padding: 32px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group label .optional {
    color: var(--text-muted);
    font-weight: 400;
}

.form-group input,
.form-group textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 0.9375rem;
    font-family: var(--font-sans);
    color: var(--text-primary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.captcha-group {
    display: flex;
    justify-content: flex-start;
}

.btn-submit {
    width: 100%;
    position: relative;
}

.btn-submit .btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: inline;
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-status {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid var(--success);
    color: var(--success);
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid #ef4444;
    color: #ef4444;
}

/* Contact Info Cards */
.contact-info {
    display: flex;
    flex-direction: column;
}

.contact-methods-vertical {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.contact-card:hover {
    border-color: var(--accent);
    transform: translateX(4px);
    box-shadow: var(--shadow-glow);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-md);
    color: var(--accent);
    flex-shrink: 0;
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-weight: 500;
    color: var(--text-primary);
}

/* Footer */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 968px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 100px;
    }

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

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

    .hero-visual {
        order: -1;
    }

    .terminal {
        max-width: 400px;
    }

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

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

    .experience-header {
        flex-direction: column;
        gap: 16px;
    }

    .experience-meta {
        text-align: left;
    }

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

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

    .contact-info {
        order: -1;
    }
}

@media (max-width: 640px) {
    .nav-links {
        gap: 20px;
    }

    .nav-links li:not(:last-child) {
        display: none;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

    .btn {
        width: 100%;
    }

    .section {
        padding: 60px 0;
    }

    .experience-content {
        padding: 24px;
    }

    .achievement.featured {
        margin: 8px -8px;
        padding: 12px;
    }
}