/* ==========================================================================
   Alex Stephen Brown — alexstephenbrown.com
   Pure static CSS · Mobile-first · BEM naming
   ========================================================================== */

:root {
    /* Backgrounds */
    --bg-main: #faf7f3;
    --bg-alt: #f0ebe3;
    --bg-card: #fff;

    /* Text */
    --text-primary: #1c1714;
    --text-body: #4a3f35;
    --text-dim: #8c8077;

    /* Accent */
    --accent: #6b4c2a;
    --accent-hover: #8a6840;

    /* Layout */
    --max-width: 1120px;
    --nav-height: 64px;

    /* Fonts */
    --serif: Georgia, "Times New Roman", serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Skip Link ---------- */

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 200;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    font-family: var(--sans);
    font-size: 0.875rem;
}

.skip-link:focus {
    left: 0;
}

/* ---------- Reset ---------- */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--serif);
    background: var(--bg-main);
    color: var(--text-body);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

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

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

/* ---------- Focus Styles ---------- */

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.hero__cta:focus-visible,
.contact__cta:focus-visible {
    outline-color: #fff;
}

/* ==========================================================================
   Nav
   ========================================================================== */

.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 247, 243, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: var(--nav-height);
}

.nav__wordmark {
    font-family: var(--sans);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
}

.nav__links {
    display: flex;
    gap: 1rem;
}

.nav__link {
    font-family: var(--sans);
    font-size: 0.8125rem;
    color: var(--text-body);
    letter-spacing: 0.02em;
    transition: color 0.2s;
}

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

/* ==========================================================================
   Hero (text-only, no background image)
   ========================================================================== */

.hero {
    background: var(--bg-alt);
    padding: 5rem 1.5rem 4rem;
    text-align: center;
    scroll-margin-top: var(--nav-height);
}

.hero__label {
    font-family: var(--sans);
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.hero__heading {
    font-family: var(--serif);
    font-size: 2rem;
    font-weight: 400;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero__sub {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-body);
    max-width: 560px;
    margin: 0 auto 1.75rem;
}

.hero__cta {
    display: inline-block;
    font-family: var(--sans);
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: var(--accent);
    padding: 0.875rem 2.25rem;
    transition: background 0.25s;
}

.hero__cta:hover {
    background: var(--accent-hover);
}

/* ==========================================================================
   Section Labels (shared pattern)
   ========================================================================== */

.section__label {
    font-family: var(--sans);
    font-size: 0.6875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.section__heading {
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2.5rem;
}

/* ==========================================================================
   About
   ========================================================================== */

.about {
    padding: 4rem 1.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    scroll-margin-top: var(--nav-height);
}

.about__text {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-body);
    max-width: 720px;
    margin-bottom: 2.5rem;
}

.about__cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

/* ---------- Value Card ---------- */

.value-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 2rem 1.5rem;
    position: relative;
    transition: box-shadow 0.3s;
}

.value-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.value-card__accent {
    width: 40px;
    height: 3px;
    background: var(--accent);
    margin-bottom: 1.25rem;
}

.value-card__title {
    font-family: var(--serif);
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.625rem;
}

.value-card__desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-body);
}

/* ==========================================================================
   Projects
   ========================================================================== */

.projects {
    background: var(--bg-alt);
    padding: 4rem 1.5rem;
    scroll-margin-top: var(--nav-height);
}

.projects > .section__label,
.projects > .section__heading,
.projects__grid {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
}

.projects__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

/* ---------- Project Card ---------- */

.project-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.project-card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.project-card__info {
    padding: 1.5rem 1.5rem 1.75rem;
}

.project-card__title {
    font-family: var(--serif);
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.project-card__desc {
    font-size: 0.9375rem;
    line-height: 1.65;
    color: var(--text-body);
    margin-bottom: 0.75rem;
}

.project-card__link {
    font-family: var(--sans);
    font-size: 0.8125rem;
    color: var(--accent);
    letter-spacing: 0.02em;
    transition: color 0.2s;
}

.project-card:hover .project-card__link {
    color: var(--accent-hover);
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
    padding: 5rem 1.5rem;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    scroll-margin-top: var(--nav-height);
}

.contact__heading {
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact__desc {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-body);
    margin-bottom: 2rem;
}

.contact__cta {
    display: inline-block;
    font-family: var(--sans);
    font-size: 0.875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: var(--accent);
    padding: 0.875rem 2.25rem;
    transition: background 0.25s;
}

.contact__cta:hover {
    background: var(--accent-hover);
}

.contact__social {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.contact__social-link {
    font-family: var(--sans);
    font-size: 0.8125rem;
    color: var(--text-body);
    transition: color 0.2s;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding: 2.5rem 1.5rem;
}

.footer__inner {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.footer__brand {
    font-family: var(--sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.footer__social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
}

.footer__social-link {
    font-family: var(--sans);
    font-size: 0.8125rem;
    color: var(--text-body);
    transition: color 0.2s;
}

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

.footer__copy {
    font-family: var(--sans);
    font-size: 0.6875rem;
    color: var(--text-dim);
}

/* ==========================================================================
   Responsive — Mobile-first breakpoints
   ========================================================================== */

/* 480px — Large phones */
@media (min-width: 480px) {
    .nav__links {
        gap: 1.5rem;
    }

    .hero {
        padding: 5.5rem 2rem 4.5rem;
    }

    .hero__heading {
        font-size: 2.5rem;
    }

    .about {
        padding: 4.5rem 2rem;
    }

    .projects {
        padding: 4.5rem 2rem;
    }

    .contact {
        padding: 5.5rem 2rem;
    }
}

/* 768px — Tablets */
@media (min-width: 768px) {
    .nav__links {
        gap: 2rem;
    }

    .hero {
        padding: 6rem 2.5rem 5rem;
    }

    .hero__heading {
        font-size: 3rem;
    }

    .about {
        padding: 5rem 2.5rem;
    }

    .about__cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .projects {
        padding: 5rem 2.5rem;
    }

    .projects__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.75rem;
    }

    .project-card--featured {
        grid-column: 1 / -1;
    }

    .contact {
        padding: 6rem 2.5rem;
    }
}

/* 1024px — Desktop */
@media (min-width: 1024px) {
    .nav__inner {
        padding: 0 2.5rem;
    }

    .hero {
        padding: 7rem 2.5rem 5.5rem;
    }

    .hero__heading {
        font-size: 3.5rem;
    }

    .about {
        padding: 6rem 2.5rem;
    }

    .section__heading {
        font-size: 2rem;
    }

    .value-card {
        padding: 2.25rem 1.75rem;
    }

    .projects {
        padding: 6rem 2.5rem;
    }

    .projects__grid {
        gap: 2rem;
    }

    .project-card__info {
        padding: 1.5rem 1.75rem 1.75rem;
    }

    .contact {
        padding: 7rem 2rem;
    }

    .contact__heading {
        font-size: 2rem;
    }
}