/* ========================================
   PORTFOLIO STYLESHEET
   W. Gregg Henwood - Creative Technologist
   ======================================== */

/* CSS Variables */
:root {
    --teal: #009688;
    --dark-bg: #0b0b0b;
    --charcoal: #1a1a1a;
    --light-text: #ffffff;
    --gray-text: #cccccc;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

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

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(11, 11, 11, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 150, 136, 0.1);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--teal);
    transition: var(--transition);
}

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

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-text);
    transition: var(--transition);
    position: relative;
}

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

.nav-link:hover {
    color: var(--teal);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:focus {
    outline: 2px solid var(--teal);
    outline-offset: 4px;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 150, 136, 0.1) 0%, rgba(26, 26, 26, 0.8) 100%),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="%23009688" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="1200" height="800" fill="%230b0b0b"/><rect width="1200" height="800" fill="url(%23grid)"/></svg>');
    background-attachment: fixed;
    text-align: center;
    margin-top: 60px;
}

.hero-content {
    z-index: 10;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--teal) 0%, var(--light-text) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    font-weight: 500;
    color: var(--gray-text);
    margin-bottom: 0.5rem;
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    color: var(--teal);
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid var(--teal);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--teal);
    color: var(--dark-bg);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--teal);
    box-shadow: 0 0 20px rgba(0, 150, 136, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--teal);
}

.btn-secondary:hover {
    background-color: var(--teal);
    color: var(--dark-bg);
    box-shadow: 0 0 20px rgba(0, 150, 136, 0.3);
}

.btn:focus {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
}

/* ========================================
   CONTAINER & SECTIONS
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

section[id] {
    scroll-margin-top: 80px;
}

section h2 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--teal);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    background-color: var(--charcoal);
}

.about-text {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    color: var(--gray-text);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card {
    background-color: rgba(0, 150, 136, 0.05);
    border: 1px solid rgba(0, 150, 136, 0.2);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition);
}

.about-card:hover {
    background-color: rgba(0, 150, 136, 0.1);
    border-color: var(--teal);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 150, 136, 0.1);
}

.about-card h3 {
    font-size: 1.3rem;
    color: var(--teal);
    margin-bottom: 1rem;
}

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

.about-card li {
    padding: 0.4rem 0;
    color: var(--gray-text);
    position: relative;
    padding-left: 1.5rem;
}

.about-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--teal);
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects {
    background-color: var(--dark-bg);
}

.projects-subtitle {
    text-align: center;
    color: var(--gray-text);
    font-size: 1rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-tile {
    background-color: var(--charcoal);
    border: 1px solid rgba(0, 150, 136, 0.2);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-tile:hover {
    background-color: rgba(0, 150, 136, 0.05);
    border-color: var(--teal);
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 150, 136, 0.15);
}

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

.project-header h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--light-text);
}

.project-tag {
    display: inline-block;
    background-color: rgba(0, 150, 136, 0.2);
    color: var(--teal);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
}

.project-tile p {
    color: var(--gray-text);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    color: var(--teal);
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    transition: var(--transition);
}

.project-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--teal);
    transition: width 0.3s ease;
}

.project-link:hover::after {
    width: 100%;
}

.project-link:focus {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background-color: var(--charcoal);
    text-align: center;
}

.contact p {
    font-size: 1.1rem;
    color: var(--gray-text);
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-btn {
    padding: 0.75rem 1.5rem;
    background-color: rgba(0, 150, 136, 0.1);
    border: 2px solid var(--teal);
    border-radius: 4px;
    color: var(--teal);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.contact-btn:hover {
    background-color: var(--teal);
    color: var(--dark-bg);
    box-shadow: 0 8px 20px rgba(0, 150, 136, 0.3);
}

.contact-btn:focus {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--dark-bg);
    border-top: 1px solid rgba(0, 150, 136, 0.1);
    padding: 2rem;
    text-align: center;
    color: var(--gray-text);
    font-size: 0.9rem;
}

.footer p {
    margin: 0.5rem 0;
}

.footer a {
    color: var(--teal);
    transition: var(--transition);
}

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

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   MOBILE RESPONSIVENESS
   ======================================== */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .hero {
        margin-top: 50px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }

    .btn {
        width: 100%;
    }

    section {
        padding: 3rem 1rem;
    }

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

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

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

    .contact-btn {
        width: 100%;
    }

    .project-tile {
        padding: 1.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }
}