/* ============================================
   Brian Johnson — Portfolio
   Modern Aviation Theme
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    --color-navy: #0a1628;
    --color-navy-light: #13233d;
    --color-navy-lighter: #1c3050;
    --color-sky: #4fc3f7;
    --color-sky-dark: #0288d1;
    --color-accent: #ffb74d;
    --color-white: #ffffff;
    --color-off-white: #f5f7fa;
    --color-gray: #6b7a90;
    --color-gray-light: #e8edf2;
    --color-text: #2c3e50;
    --color-text-light: #5a6b7d;

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.08);
    --shadow-md: 0 4px 20px rgba(10, 22, 40, 0.12);
    --shadow-lg: 0 8px 40px rgba(10, 22, 40, 0.18);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ---------- Container ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Navigation ---------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}

.nav.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.15rem;
    letter-spacing: 0.5px;
}

.nav-logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-sky);
}

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

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-sky);
    transition: var(--transition);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from {
        transform: scale(1.05);
    }

    to {
        transform: scale(1.12);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(10, 22, 40, 0.92) 0%,
            rgba(10, 22, 40, 0.75) 50%,
            rgba(2, 136, 209, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 800px;
}

.hero-eyebrow {
    color: var(--color-sky);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-sky);
    color: var(--color-navy);
}

.btn-primary:hover {
    background: var(--color-sky-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 195, 247, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.3);
}

/* ---------- Hero Scroll ---------- */
.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.hero-scroll-link:hover {
    color: var(--color-white);
}

.hero-scroll-text {
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-scroll-icon {
    width: 24px;
    height: 24px;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(8px);
    }
}

/* ---------- Hero Flight Path ---------- */
.hero-flightpath {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    z-index: 1;
    pointer-events: none;
}

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

.section-alt {
    background: var(--color-off-white);
}

.section-dark {
    background: var(--color-navy);
    color: var(--color-white);
    overflow: hidden;
}

.section-head {
    text-align: center;
    margin-bottom: 60px;
}

.section-kicker {
    color: var(--color-sky-dark);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.section-title-light {
    color: var(--color-white);
}

.section-line {
    width: 60px;
    height: 3px;
    background: var(--color-sky);
    margin: 0 auto;
    border-radius: 2px;
}

.section-line-light {
    background: var(--color-sky);
}

/* ---------- About ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.about-photo-wrap {
    position: relative;
}

.about-photo {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.about-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
            transparent 60%,
            rgba(10, 22, 40, 0.3));
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/5;
}

.about-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(8px);
    color: var(--color-white);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
}

.about-badge svg {
    width: 16px;
    height: 16px;
    color: var(--color-sky);
}

.about-content {
    padding: 20px 0;
}

.about-heading {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-navy);
    line-height: 1.4;
    margin-bottom: 20px;
}

.about-text {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

.about-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.stat {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
    padding: 20px;
    background: var(--color-off-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-sky);
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-sky-dark);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.about-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-gray);
}

.detail-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-navy);
}

/* ---------- Education & Honors ---------- */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.education-card {
    display: flex;
    flex-direction: column;
    background: var(--color-off-white);
    border: 1px solid var(--color-gray-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.education-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 195, 247, 0.4);
}

.education-type {
    align-self: flex-start;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-white);
    background: var(--color-navy);
    padding: 4px 12px;
    border-radius: 50px;
}

.education-school {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-top: 16px;
}

.education-major {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: 8px;
    margin-bottom: 8px;
}

.education-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 16px;
}

.education-meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--color-gray-light);
}

.education-meta span {
    font-size: 0.8rem;
    color: var(--color-gray);
}

/* ---------- Experience / Timeline ---------- */
.subsection-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: 40px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-gray-light);
}

.timeline {
    position: relative;
    padding-left: 40px;
    margin-bottom: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom,
            var(--color-sky),
            var(--color-sky-dark),
            var(--color-gray-light));
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-marker {
    position: absolute;
    left: -40px;
    top: 8px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--color-white);
    border: 3px solid var(--color-sky);
    z-index: 1;
    box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.15);
}

.timeline-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.timeline-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: rgba(79, 195, 247, 0.4);
}

.timeline-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 16px;
    flex-wrap: wrap;
}

.timeline-company {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-navy);
}

.timeline-period {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-top: 4px;
}

.timeline-location {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-sky-dark);
    background: rgba(79, 195, 247, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
    white-space: nowrap;
}

.timeline-role {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 12px;
}

.timeline-list {
    margin: 12px 0;
    padding-left: 0;
}

.timeline-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.timeline-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-sky-dark);
    font-weight: 600;
}

.timeline-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-sky-dark);
    transition: var(--transition);
}

.timeline-link:hover {
    color: var(--color-navy);
    transform: translateX(4px);
}

/* ---------- Skills ---------- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.skill-category {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-light);
    transition: var(--transition);
}

.skill-category:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.skill-category-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-gray-light);
}

.skill-category-head svg {
    width: 24px;
    height: 24px;
    color: var(--color-sky-dark);
}

.skill-category-head h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-navy);
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.skill-bar-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
}

.skill-bar-label span:last-child {
    color: var(--color-sky-dark);
    font-weight: 600;
    font-size: 0.8rem;
}

.skill-bar-track {
    height: 6px;
    background: var(--color-gray-light);
    border-radius: 3px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-sky), var(--color-sky-dark));
    border-radius: 3px;
    width: 0;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Contact ---------- */
.contact-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.contact-text {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-flightpath {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    pointer-events: none;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--color-navy);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 30px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--color-sky);
    font-weight: 500;
    letter-spacing: 1px;
}

/* ---------- Reveal Animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: 1fr 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-photo-wrap {
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-navy);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: 70px 0;
    }

    .about-stats {
        flex-direction: column;
    }

    .about-details {
        grid-template-columns: 1fr;
        gap: 12px;
    }

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

    .timeline {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -30px;
        width: 22px;
        height: 22px;
    }

    .timeline-head {
        flex-direction: column;
        gap: 8px;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .about-heading {
        font-size: 1.3rem;
    }

    .timeline-card {
        padding: 20px;
    }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}