/* ---------------------------------------------------------------
   Main CSS
   Layout, components, visual style
   --------------------------------------------------------------- */

/* ---------------------------
   Global
   --------------------------- */

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Basic typography tweaks */

h1,
h2,
h3,
h4 {
    margin: 0 0 0.75rem;
    line-height: 1.25;
    color: var(--text);
}

h1 {
    font-size: 2.4rem;
    letter-spacing: 0.03em;
}

h2 {
    font-size: 1.8rem;
    letter-spacing: 0.02em;
}

h3 {
    font-size: 1.3rem;
}

p {
    margin: 0 0 0.9rem;
    color: var(--text-soft);
}

.section-lead {
    font-size: 1.05rem;
    color: var(--text-soft);
}

/* Links */

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

a:hover,
a:focus {
    text-decoration: underline;
}

/* ---------------------------
   Header + navigation
   --------------------------- */

.site-header {
    background-color: var(--bg-soft);
    border-bottom: 1px solid var(--line);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.75rem 1.5rem;
}

.site-branding {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text);
}

.site-title {
    white-space: nowrap;
}


/* Logo mark — Astro star */
.site-logo-mark {
    display: inline-block;
    width: 3rem;
    height: 3rem;
    border-radius: 0.35rem;

    background-image: url("/assets/images/logo/astro-star-light.svg");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

[data-theme="dark"] .site-logo-mark {
    background-image: url("/assets/images/logo/astro-star-dark.svg");
}

.site-tagline {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-subtle);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nav-main ul {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    padding: 0;
    margin: 0;
    list-style: none;
    font-size: 0.9rem;
}

.nav-main a {
    color: var(--text-soft);
    text-decoration: none;
    position: relative;
    padding-bottom: 0.1rem;
}

.nav-main a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.18s ease-out;
}

.nav-main a:hover::after,
.nav-main a:focus::after {
    width: 100%;
}

/* Theme toggle button */

.theme-toggle {
    border: 1px solid var(--line);
    background-color: transparent;
    color: var(--text-soft);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
}

.theme-toggle:hover,
.theme-toggle:focus {
    background-color: var(--surface-soft);
}

/* ---------------------------
   Hero
   --------------------------- */

.hero {
    padding: 3.5rem 1.5rem 3rem;
    border-bottom: 1px solid var(--line);
    background:
        linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.02),
            rgba(0, 0, 0, 0.03)
        );
}

.hero-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2.5rem;
}

#hero-title {
    font-family: "VivaStdBold", "DejaVu Serif", serif;
    font-weight: 700;
    font-size: 2.7em;
}

.hero-text {
    flex: 1 1 18rem;
}

.hero-subtitle {
    font-size: 1.02rem;
    max-width: 40rem;
}

.hero-tagline {
    font-size: 0.9rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--text-subtle);
    margin-top: 0.4rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.4rem;
}

.hero-visual {
    flex: 0 1 18rem;
    aspect-ratio: 283.464 / 335.43;
    padding: 12px;
    border-radius: 1.2rem;
    border: 1px solid var(--line);

    background-image:
        url("/assets/images/hero/diamond-light.svg"),
        linear-gradient(90deg,
            rgba(255, 255, 255, 0.02),
            rgba(0, 0, 0, 0.05)
        ),
        repeating-linear-gradient(
            to right,
            rgba(0, 0, 0, 0.05) 0,
            rgba(0, 0, 0, 0.05) 1px,
            transparent 1px,
            transparent 16px
        ),
        repeating-linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.05) 0,
            rgba(0, 0, 0, 0.05) 1px,
            transparent 1px,
            transparent 16px
        );

    background-size:
        contain,
        auto,
        auto,
        auto;

    background-position:
        center,
        center,
        center,
        center;

    background-repeat:
        no-repeat,
        no-repeat,
        repeat,
        repeat;

    background-origin:
        content-box,
        border-box,
        border-box,
        border-box;

    background-clip:
        content-box,
        border-box,
        border-box,
        border-box;
}

[data-theme="dark"] .hero-visual {
    background-image:
        url("/assets/images/hero/diamond-dark.svg"),
        linear-gradient(90deg,
            rgba(255, 255, 255, 0.02),
            rgba(0, 0, 0, 0.05)
        ),
        repeating-linear-gradient(
            to right,
            rgba(255, 255, 255, 0.03) 0,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px,
            transparent 16px
        ),
        repeating-linear-gradient(
            to bottom,
            rgba(255, 255, 255, 0.03) 0,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px,
            transparent 16px
        );
}

/* ---------------------------
   Buttons
   --------------------------- */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-decoration: none;
    text-wrap: balance;
    text-align: center;
    cursor: pointer;
}

.button-primary {
    background-color: var(--accent);
    color: var(--accent-text);
    border-color: var(--accent);
}

.button-primary:hover,
.button-primary:focus {
    filter: brightness(1.05);
    text-decoration: none;
}

.button-secondary {
    background-color: transparent;
    color: var(--accent);
    border-color: var(--accent);
    transition: background 0.25s ease;
}


.button-secondary:hover,
.button-secondary:focus {
    background-color: rgba(214, 64, 50, 0.06);
    text-decoration: none;
}

/* ---------------------------
   Sections
   --------------------------- */

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

.section:nth-of-type(even) {
    background-color: var(--bg-soft);
}

.section-header {
    margin-bottom: 1.5rem;
}

.section-title {
    margin-bottom: 0.35rem;
}

.section-body {
    max-width: 48rem;
}

/* ---------------------------
   "What we do" cards
   --------------------------- */

.cards {
    display: grid;
    gap: 1.75rem;
}

.cards-what-we-do {
    grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.card {
    background-color: var(--surface);
    border-radius: 1rem;
    padding: 1.4rem 1.5rem;
    border: 1px solid var(--line);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.04);
}

.card {
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
}

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


.card h3 {
    margin-bottom: 0.65rem;
}

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

.publisher-name {
    font-style: italic;
}

/* ---------------------------
   Community section
   --------------------------- */

.section-community .section-body {
    border-left: 3px solid var(--accent);
    padding-left: 1.2rem;
}

/* ---------------------------
   Working with Astro
   --------------------------- */

.section-working-with-astro .section-body p:first-of-type {
    font-weight: 600;
    color: var(--text);
}

/* ---------------------------
   Contact section
   --------------------------- */

.section-contact .section-body {
    max-width: none;
}

.contact-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.contact-details,
.contact-actions {
    flex: 1 1 16rem;
}

.contact-details h3 {
    margin-bottom: 0.5rem;
}

.contact-details p {
    margin-bottom: 0.6rem;
}

/* ---------------------------
   Footer
   --------------------------- */

.site-footer {
    border-top: 1px solid var(--line);
    background-color: var(--bg-strong);
}

.site-footer-inner {
    padding: 1.2rem 1.5rem;
    text-align: center;
}

.site-footer-copy {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-subtle);
    text-wrap: balance;
}

/* ---------------------------
   Responsive tweaks
   --------------------------- */

@media (max-width: 970px) {
    .nav-main ul {
        column-gap: 1.25rem;
        row-gap: 0.25rem;
        padding: 0;
        margin: 0;
    }

    .nav-main li {
        margin: 0;
    }
}



@media (max-width: 970px)  and (min-width: 730px) {
    .nav-main ul {
        display: grid;
        grid-template-columns: auto auto auto;
    }

    .nav-main li:nth-child(1) { grid-column: 1; }
    .nav-main li:nth-child(2) { grid-column: 2; }
    .nav-main li:nth-child(3) { grid-column: 3; }
    .nav-main li:nth-child(4) { grid-column: 1 / span 2; }
    .nav-main li:nth-child(5) { grid-column: 3; }
}



@media (max-width: 730px) {
    .site-header-inner {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .hero {
        padding-top: clamp(1rem, 4vw, 2.5rem);
    }

    .hero-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-visual {
        align-self: stretch;
    }

    .hero-actions {
        justify-content: center;
    }

    .section {
        padding: 2.5rem 1.25rem;
    }

    .nav-main {
        width: 100%;
    }

    .nav-main ul {
        justify-content: flex-end;
    }
}

@media (max-width: 730px) and (min-width: 430px) {

    .theme-toggle {
        position: absolute;
        right: 1rem;
        top: 1rem;
        transform: none;
        margin: 0;
        z-index: 10;
    }

    .site-header-inner {
        position: relative;
    }
}

@media (max-width: 550px)  and (min-width: 340px) {
    .nav-main ul {
        display: grid;
        grid-template-columns: auto auto auto;
    }

    .nav-main li:nth-child(1) { grid-column: 1; }
    .nav-main li:nth-child(2) { grid-column: 2; }
    .nav-main li:nth-child(3) { grid-column: 3; }
    .nav-main li:nth-child(4) { grid-column: 1 / span 2; }
    .nav-main li:nth-child(5) { grid-column: 3; }

}

@media (max-width: 340px) {
    .site-title {
        white-space: normal;
    }
}