/* style.css
   Minimal corporate-dark aesthetic. Mobile-first.
   No frameworks, no external fonts. System stack only.
*/

:root {
    --bg-page:        #0f1117;
    --bg-card:        #1a1d29;
    --bg-alt:         #161a23;
    --text-main:      #f3f4f6;
    --text-dim:       #9ca3af;
    --accent:         #3b82f6;
    --accent-hover:   #60a5fa;
    --border-color:   #f97316;
    --radius-lg:      12px;
    --radius-md:      8px;
    --radius-sm:      4px;
    --line-height:    1.5;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
                 Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-page);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: var(--line-height);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    margin: 0 0 0.5em;
    line-height: 1.2;
    font-weight: 600;
}

p {
    color: var(--text-dim);
    margin: 0 0 1em;
    font-size: 0.95rem;
}

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

ul {
    margin: 0 0 1em;
    padding-left: 1.2em;
    color: var(--text-dim);
    font-size: 0.95rem;
}
li {
    margin-bottom: 0.5em;
}

pre {
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-size: 0.8rem;
    line-height: 1.4;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Layout helpers */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.narrow {
    max-width: 760px;
}

.section-block {
    padding: 3rem 0;
    background-color: var(--bg-page);
}
.section-block.alt-bg {
    background-color: var(--bg-alt);
}

.section-head {
    margin-bottom: 2rem;
}
.section-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.section-desc {
    font-size: 0.95rem;
    color: var(--text-dim);
    max-width: 780px;
}

/* Header / Nav */
.site-header {
    background-color: var(--bg-alt);
    border-bottom: 1px solid var(--border-color);
}
.header-inner {
    display: flex;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
    position: relative;
}
.brand-link {
    color: var(--text-main);
    text-decoration: none;
}
.brand-top {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
}
.brand-sub {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* nav toggle (hamburger) for mobile */
.nav-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    cursor: pointer;
    margin-left: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}
.nav-toggle-bar {
    background: var(--text-main);
    width: 22px;
    height: 2px;
    border-radius: 1px;
}

.site-nav {
    position: absolute;
    top: 100%;
    right: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    min-width: 180px;
    display: none;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    z-index: 50;
}
.site-nav.open {
    display: flex;
}
.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.site-nav li {
    margin: 0;
    padding: 0;
}
.site-nav li a {
    display: block;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-main);
    text-decoration: none;
}
.site-nav li.active > a {
    background-color: rgba(59,130,246,0.12);
    color: var(--accent);
    font-weight: 600;
}
.site-nav li a:hover {
    background-color: rgba(255,255,255,0.05);
}

/* Desktop nav */
@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
    .site-nav {
        position: static;
        display: flex !important;
        background: transparent;
        border: 0;
        border-radius: 0;
        padding: 0;
        min-width: 0;
        flex-direction: row;
        box-shadow: none;
        margin-left: auto;
    }
    .site-nav ul {
        display: flex;
        gap: 1rem;
    }
    .site-nav li a {
        padding: 0.5rem 0.75rem;
        border-radius: var(--radius-md);
        font-size: 0.9rem;
        color: var(--text-main);
    }
    .site-nav li a:hover {
        background-color: rgba(255,255,255,0.05);
    }
    .site-nav li.active > a {
        background-color: rgba(59,130,246,0.12);
        color: var(--accent);
    }
}

/* Hero */
.hero {
    background-color: var(--bg-page);
    border-bottom: 1px solid var(--border-color);
    padding-top: 2rem;
    padding-bottom: 2rem;
}
.hero-text {
    max-width: 780px;
}
.headline {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1rem;
}
.lead {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    background-color: rgba(59,130,246,0.12);
    color: var(--accent);
    font-size: 0.65rem;
    font-weight: 500;
    line-height: 1.3;
    padding: 0.3rem 0.45rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(59,130,246,0.4);
}

/* small inline tag for WIP */
.tag-small {
    background-color: rgba(59,130,246,0.12);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 500;
    line-height: 1.2;
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(59,130,246,0.4);
    vertical-align: middle;
    margin-left: 0.4rem;
}

/* Cards / Grids */
.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 600px) {
    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(min(320px,100%), 1fr));
    }
}
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1rem 1.25rem;
    display: flex;
    flex-direction: column;
}
.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 0.5rem;
}
.card-body {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
    flex: 1 1 auto;
    margin: 0 0 1rem;
}
.card-link {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
}
.card-link:hover {
    color: var(--accent-hover);
}

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

@media (min-width: 768px) {
    .flagship-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Capability Grid */
.capability-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 768px) {
    .capability-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1024px) {
    .capability-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}
.capability-col {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1rem 1.25rem;
}
.cap-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 0.75rem;
}
.bullet-list {
    list-style: disc;
    color: var(--text-dim);
    padding-left: 1.2rem;
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.5;
}
.bullet-list li {
    margin-bottom: 0.5rem;
}

/* About block (home bottom) */
.about-block p {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.5;
    margin-bottom: 1rem;
}
.cta {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
}
.cta-link {
    color: var(--accent-hover);
    font-weight: 600;
    text-decoration: none;
}
.cta-link:hover {
    color: var(--accent);
}
/* Project page sections */
.project-group {
    margin-bottom: 3rem;
}
.group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 0.5rem;
}
.group-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin: 0 0 1.5rem;
}

/* Accordion */
.accordion-block {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.accordion-head {
    appearance: none;
    background: transparent;
    border: 0;
    width: 100%;
    text-align: left;
    padding: 1rem 1rem;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.accordion-head:hover {
    background-color: rgba(255,255,255,0.03);
}
.accordion-icon {
    color: var(--text-dim);
    font-size: 0.8rem;
}
.accordion-content {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-alt);
    color: var(--text-dim);
    font-size: 0.85rem;
    line-height: 1.5;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}
.accordion-block.open .accordion-icon {
    transform: rotate(90deg);
}
.accordion-block.open .accordion-content {
    /* JS will set max-height inline so it animates */
}
.full-list-pre {
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.4;
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 1rem;
    color: var(--text-dim);
}

/* Experience page specifics */
.exp-block {
    margin-bottom: 2.5rem;
}
.exp-heading {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1rem;
}
.exp-role {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1rem 1.25rem;
    margin-bottom: 1rem;
}
.role-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.role-dates {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-dim);
}
.role-body {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}
.extended-wrapper {
    padding: 1rem;
    background-color: transparent;
}
.extended-wrapper .exp-role {
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

/* Contact Page */
.contact-block {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 768px) {
    .contact-block {
        grid-template-columns: repeat(3, 1fr);
    }
}
.contact-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1rem 1.25rem;
}
.contact-head {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 0.75rem;
}
.contact-line {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin: 0 0 0.75rem;
    line-height: 1.5;
}
.contact-value {
    color: var(--text-main);
    font-weight: 500;
}
.contact-hint {
    color: var(--text-dim);
    font-size: 0.8rem;
    line-height: 1.4;
    margin: 0;
}

/* Footer */
.site-footer {
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    margin-top: 3rem;
}
.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
}
@media (min-width: 768px) {
    .footer-inner {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}
.footer-blurb {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}
.footer-heading {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-main);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}
.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 0.5rem;
}
.footer-links a {
    color: var(--text-dim);
    font-size: 0.9rem;
    text-decoration: none;
}
.footer-links a:hover {
    color: var(--accent-hover);
}
.footer-note {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

.footer-bottom {
    background-color: var(--bg-page);
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-dim);
}
.footer-bottom-inner {
    padding-top: 1rem;
    padding-bottom: 1rem;
    text-align: center;
}
.copy {
    color: var(--text-dim);
    font-size: 0.75rem;
}

/* Utilities */
.alt {
    color: var(--text-dim);
}
.hide {
    display: none !important;
}