/* ============================================
   James Coggan — Portfolio Styles
   ============================================ */

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

:root {
    --bg-primary: #0f1724;
    --bg-secondary: #141e30;
    --bg-card: #1a2540;
    --bg-card-hover: #1f2d4a;
    --text-primary: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #38bdf8;
    --accent-hover: #7dd3fc;
    --accent-glow: rgba(56, 189, 248, 0.15);
    --border: rgba(148, 163, 184, 0.1);
    --border-accent: rgba(56, 189, 248, 0.3);
    --nav-height: 72px;
    --container-max: 1100px;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

strong {
    color: var(--text-primary);
    font-weight: 600;
}

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(15, 23, 36, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background var(--transition);
}

.nav--scrolled {
    border-bottom-color: var(--border);
    background: rgba(15, 23, 36, 0.95);
}

.nav__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    transition: color var(--transition);
}

.nav__logo:hover {
    color: var(--accent);
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav__link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: color var(--transition), background var(--transition);
}

.nav__link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav__link--active {
    color: var(--accent);
}

.nav__link--cta {
    color: var(--accent);
    border: 1px solid var(--border-accent);
    margin-left: 8px;
}

.nav__link--cta:hover {
    background: var(--accent-glow);
    color: var(--accent-hover);
}

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

.nav__toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn--primary:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(56, 189, 248, 0.3);
}

.btn--outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn--outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 18px 40px;
    font-size: 1rem;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--nav-height) + 40px) 24px 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 20%, rgba(56, 189, 248, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 80% 60%, rgba(56, 189, 248, 0.04) 0%, transparent 50%),
        var(--bg-primary);
    z-index: 0;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero__greeting {
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero__name {
    font-size: clamp(2.75rem, 8vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__title {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.4;
}

.hero__tagline {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.hero__available {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: 10px 20px;
    border-radius: 100px;
    border: 1px solid var(--border);
    margin-bottom: 36px;
}

.hero__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #34d399;
    animation: pulse-dot 2s infinite;
    flex-shrink: 0;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

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

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero__scroll a {
    color: var(--text-muted);
    transition: color var(--transition), transform var(--transition);
    display: block;
    animation: scroll-bounce 2s infinite;
}

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

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

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

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

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 56px;
    text-align: center;
    position: relative;
}

.section__title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
    margin: 16px auto 0;
}

/* --- About --- */
.about {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
    align-items: start;
}

.about__photo {
    width: 240px;
    height: 240px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border);
    position: relative;
}

.about__photo::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.about__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about__text p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about__details {
    display: flex;
    gap: 32px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

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

.about__label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
}

.about__value {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Timeline --- */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--border));
    border-radius: 2px;
}

.timeline__item {
    position: relative;
    margin-bottom: 48px;
}

.timeline__item:last-child {
    margin-bottom: 0;
}

.timeline__marker {
    position: absolute;
    left: -40px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    z-index: 1;
}

.timeline__item:first-child .timeline__marker {
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline__content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    transition: border-color var(--transition), transform var(--transition);
}

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

.timeline__header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.timeline__role {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.timeline__company {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
}

.timeline__team {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-weight: 500;
}

.timeline__date {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.timeline__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timeline__list li {
    position: relative;
    padding-left: 20px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.timeline__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.6;
}

/* --- Skills --- */
.skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.skills__group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color var(--transition), transform var(--transition);
}

.skills__group:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.skills__category {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.skills__icon {
    color: var(--accent);
    display: flex;
    align-items: center;
}

.skills__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill {
    display: inline-block;
    padding: 6px 14px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 100px;
    transition: all var(--transition);
}

.pill:hover {
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent);
    border-color: rgba(56, 189, 248, 0.3);
}

/* --- Achievements --- */
.achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.achievement {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    text-align: center;
    transition: border-color var(--transition), transform var(--transition);
}

.achievement:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
}

.achievement__icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    line-height: 1;
}

.achievement__title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.achievement__desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Contact --- */
.contact {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact__intro {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.contact__links {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.contact__item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.contact__item svg {
    color: var(--accent);
    flex-shrink: 0;
}

.contact__item:hover {
    color: var(--accent);
}

/* --- Footer --- */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.footer__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer__copy {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    font-size: 0.8125rem;
    color: var(--text-muted);
    transition: color var(--transition);
}

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

/* --- Fade-up Animation --- */
.fade-up {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.js-ready .fade-up {
    opacity: 0;
    transform: translateY(24px);
}

.js-ready .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }

    .nav__links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: rgba(15, 23, 36, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 32px 24px;
        gap: 4px;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .nav__links--open {
        transform: translateX(0);
    }

    .nav__link {
        font-size: 1rem;
        padding: 14px 16px;
    }

    .nav__link--cta {
        margin-left: 0;
        margin-top: 12px;
        text-align: center;
    }

    .nav__toggle--open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav__toggle--open span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle--open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .about {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }

    .about__details {
        justify-content: center;
    }

    .timeline {
        padding-left: 28px;
    }

    .timeline::before {
        left: 3px;
    }

    .timeline__marker {
        left: -28px;
        width: 12px;
        height: 12px;
    }

    .timeline__content {
        padding: 20px;
    }

    .timeline__header {
        flex-direction: column;
        gap: 4px;
    }

    .section {
        padding: 72px 0;
    }

    .section__title {
        margin-bottom: 40px;
    }

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

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

    .hero__scroll {
        bottom: 24px;
    }
}

@media (max-width: 480px) {
    .hero__name {
        font-size: 2.25rem;
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
    }

    .about__details {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .about__detail {
        align-items: center;
    }

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