/* ========================================
   Jay Tarzwell - Personal Website
   Navy blue, clean, contemporary
   ======================================== */

/* CSS Variables */
:root {
    --primary: #152d4a;
    --primary-dark: #0f2035;
    --primary-light: #1e3a5f;
    --accent: #4a90d9;
    --bg: #f5f0e6;
    --bg-alt: #faf6ed;
    --text: #1a1a1a;
    --text-light: #5c5a56;
    --white: #fdf9f0;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);

    --radius: 8px;
    --radius-sm: 4px;

    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--primary);
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    z-index: 9999;
    transition: top var(--transition);
}

.skip-link:focus {
    top: 1rem;
    color: var(--white);
}

/* Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text);
}

h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 1.75rem);
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
}

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

.btn-secondary:hover {
    background: var(--bg);
    color: var(--primary);
}

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

.logo:hover {
    color: var(--primary-dark);
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav a {
    color: var(--text);
    font-size: 0.9375rem;
    font-weight: 500;
}

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

.nav-cta {
    background: var(--primary);
    color: var(--white) !important;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    transition: all var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
    background: var(--primary);
    color: var(--white);
    padding: 8rem 0 5rem;
    margin-top: 70px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 1rem;
}

.hero-sub {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

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

.hero-image img {
    width: 280px;
    height: auto;
    border-radius: var(--radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--bg-alt);
}

/* About */
.about-content {
    max-width: 700px;
}

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

.about-tagline {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
    font-size: 1.125rem;
}

/* Work Grid */
.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.work-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: box-shadow var(--transition), transform var(--transition);
}

.work-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.work-card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.work-card-icon svg {
    width: 24px;
    height: 24px;
}

.work-card h3 {
    color: var(--primary);
}

.work-card > p {
    color: var(--text-light);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
}

.work-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.work-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9375rem;
}

.work-list li:last-child {
    border-bottom: none;
}

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

.work-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
}

.work-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition);
}

.work-link:hover svg {
    transform: translateX(4px);
}

/* Teaching */
.teaching-content {
    max-width: 700px;
}

.teaching-text p {
    font-size: 1.0625rem;
}

.teaching-note {
    font-style: italic;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 900px;
}

.testimonial {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
    margin: 0;
}

.testimonial p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.testimonial cite {
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: normal;
}

.testimonial cite em {
    font-style: italic;
}

.testimonial-award {
    border-left-color: #c9a227;
    background: linear-gradient(135deg, #fffef5 0%, #fff 100%);
}

.testimonial-award p {
    font-style: normal;
}

/* Contact */
.contact-content {
    max-width: 600px;
}

.contact-intro {
    font-size: 1.0625rem;
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    color: var(--text);
    transition: all var(--transition);
}

.contact-item:hover {
    box-shadow: var(--shadow-lg);
    color: var(--primary);
}

.contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.contact-location {
    cursor: default;
}

.contact-location:hover {
    box-shadow: var(--shadow);
    color: var(--text);
}

/* Footer */
.footer {
    background: var(--primary);
    color: var(--white);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copy {
    font-size: 0.875rem;
    opacity: 0.8;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--white);
    font-size: 0.875rem;
    opacity: 0.8;
    transition: opacity var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--white);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

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

    .nav a {
        padding: 0.75rem 0;
        width: 100%;
        text-align: center;
    }

    .nav-cta {
        width: 100%;
        text-align: center;
        padding: 0.75rem;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 8rem 0 4rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-image {
        order: -1;
        margin-bottom: 1rem;
    }

    .hero-image img {
        width: 200px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .section {
        padding: 3.5rem 0;
    }

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

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.375rem;
    }

    .hero {
        padding: 7rem 0 3rem;
    }

    .work-card {
        padding: 1.5rem;
    }
}