/* ============================================================
   CHITRA SHARMA — PORTFOLIO
   Aesthetic: refined editorial minimalism
   Type: Fraunces (display) + Inter Tight (body) + JetBrains Mono (accent)
   ============================================================ */

:root {
    --bg:           #f6f4ee;
    --bg-alt:       #ecebe3;
    --ink:          #1a1a1a;
    --ink-soft:     #4a4a4a;
    --ink-mute:     #8a8a85;
    --line:         #d8d6cc;
    --accent:       #c4471c;
    --accent-soft:  #f4d8c8;
    --green:        #5b7a3a;

    --serif:    'Fraunces', 'Times New Roman', serif;
    --sans:     'Inter Tight', -apple-system, sans-serif;
    --mono:     'JetBrains Mono', ui-monospace, monospace;

    --radius:   8px;
    --maxw:     1100px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

/* ============ NAV ============ */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 40px;
    background: rgba(246, 244, 238, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--serif);
    font-weight: 600;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--ink);
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.brand-name { font-size: 17px; }

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
    font-size: 14px;
}

.nav-links a {
    color: var(--ink-soft);
    transition: color 0.2s;
}

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

.nav-cta {
    padding: 8px 18px;
    background: var(--ink);
    color: var(--bg) !important;
    border-radius: 999px;
    transition: background 0.2s;
}

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

/* ============ HERO ============ */
.hero {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 100px 40px 120px;
}

.hero-inner { max-width: 820px; }

.hero-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-soft);
    margin-bottom: 40px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(91, 122, 58, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

.hero-title {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(40px, 6.5vw, 76px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}

.hero-title em {
    font-style: italic;
    color: var(--accent);
    font-weight: 400;
}

.hero-sub {
    font-size: 19px;
    line-height: 1.55;
    color: var(--ink-soft);
    max-width: 620px;
    margin-bottom: 44px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    transition: transform 0.2s, background 0.2s;
    cursor: pointer;
}

.btn:hover { transform: translateY(-2px); }

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

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

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
}

.btn-ghost:hover { background: var(--bg-alt); }

.hero-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--line);
}

.hero-meta > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-mute);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.meta-value {
    font-size: 14px;
    color: var(--ink);
    font-weight: 500;
}

/* ============ SECTIONS (shared) ============ */
.section {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 100px 40px;
}

.section-alt {
    background: var(--bg-alt);
    max-width: none;
    padding: 100px 40px;
}

.section-alt > * {
    max-width: var(--maxw);
    margin-left: auto;
    margin-right: auto;
}

.section-head {
    display: flex;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 56px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}

.section-num {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink-mute);
}

.section-title {
    font-family: var(--serif);
    font-weight: 500;
    font-size: 36px;
    letter-spacing: -0.01em;
}

/* ============ ABOUT ============ */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text .lead {
    font-family: var(--serif);
    font-size: 24px;
    line-height: 1.4;
    color: var(--ink);
    margin-bottom: 24px;
    font-weight: 400;
}

.about-text p {
    font-size: 16px;
    color: var(--ink-soft);
    margin-bottom: 18px;
    max-width: 60ch;
}

.about-side {
    background: var(--bg-alt);
    padding: 28px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
}

.about-side h3 {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--ink-mute);
    margin-bottom: 18px;
    font-weight: 500;
}

.about-side ul { list-style: none; }

.about-side li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px dashed var(--line);
    font-size: 14px;
}

.about-side li:last-child { border-bottom: 0; }

.about-side li span:first-child { color: var(--ink-mute); }

.about-side li span:last-child {
    color: var(--ink);
    font-weight: 500;
    text-align: right;
}

/* ============ EXPERIENCE ============ */
.exp-card {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 32px 36px;
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
    gap: 16px;
}

.exp-role {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 500;
    margin-bottom: 4px;
}

.exp-company {
    color: var(--accent);
    font-weight: 500;
    font-size: 15px;
}

.exp-time {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.exp-duration {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink);
    font-weight: 500;
}

.exp-split {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-mute);
}

.exp-body { padding: 36px; }

.exp-phase { margin-bottom: 32px; }
.exp-phase:last-of-type { margin-bottom: 24px; }

.phase-title {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 16px;
    font-weight: 500;
}

.exp-points {
    list-style: none;
    padding-left: 0;
}

.exp-points li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    color: var(--ink-soft);
    line-height: 1.6;
}

.exp-points li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

.exp-points strong {
    color: var(--ink);
    font-weight: 600;
}

.exp-stack {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.stack-label {
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--ink-mute);
    margin-right: 8px;
}

.chip {
    display: inline-block;
    padding: 5px 12px;
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-soft);
}

/* ============ EXPERIENCE GAP (skill upgrade period) ============ */
.exp-gap {
    display: flex;
    align-items: stretch;
    gap: 24px;
    margin: 24px 0;
    padding: 0 12px;
}

.exp-gap-line {
    width: 2px;
    background: repeating-linear-gradient(
        to bottom,
        var(--line) 0,
        var(--line) 6px,
        transparent 6px,
        transparent 12px
    );
    flex-shrink: 0;
    margin-left: 24px;
}

.exp-gap-content {
    padding: 16px 0;
    flex: 1;
}

.exp-gap-label {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 8px;
    font-weight: 500;
}

.exp-gap-content p {
    color: var(--ink-soft);
    font-size: 14.5px;
    line-height: 1.6;
    max-width: 680px;
}

/* ============ EDUCATION ============ */
.edu-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.edu-card {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 28px 32px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    flex-wrap: wrap;
    gap: 16px;
    transition: border-color 0.25s, transform 0.25s;
}

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

.edu-main { flex: 1; min-width: 240px; }

.edu-degree {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.3;
}

.edu-school {
    color: var(--accent);
    font-weight: 500;
    font-size: 14.5px;
    margin-bottom: 8px;
}

.edu-meta {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink-soft);
}

.edu-time {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.edu-duration {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink);
    font-weight: 500;
}

.edu-location {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-mute);
}

/* ============ PROJECTS ============ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.25s, transform 0.25s;
}

.project-card:hover {
    border-color: var(--ink);
    transform: translateY(-4px);
}

.project-featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--bg) 0%, var(--accent-soft) 100%);
    border-color: var(--accent);
}

.project-tag {
    display: inline-block;
    align-self: flex-start;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--bg);
    border-radius: 999px;
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.project-tag-soft {
    background: var(--bg-alt);
    color: var(--ink-soft);
    border: 1px solid var(--line);
}

.project-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 12px;
    line-height: 1.25;
}

.project-desc {
    color: var(--ink-soft);
    font-size: 14.5px;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.project-links {
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.project-links a {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink);
    font-weight: 500;
    transition: color 0.2s;
}

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

/* ============ SKILLS ============ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.skill-block {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 24px;
}

.skill-block h3 {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 18px;
    font-weight: 500;
}

.skill-block ul { list-style: none; }

.skill-block li {
    padding: 8px 0;
    color: var(--ink-soft);
    font-size: 14px;
    border-bottom: 1px dashed var(--line);
}

.skill-block li:last-child { border-bottom: 0; }

.learning {
    color: var(--ink-mute);
    font-size: 11px;
    font-family: var(--mono);
}

/* ============ CONTACT ============ */
.contact-inner {
    text-align: center;
    padding: 40px 0;
}

.contact-headline {
    font-family: var(--serif);
    font-size: clamp(40px, 5vw, 60px);
    font-weight: 500;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.contact-sub {
    color: var(--ink-soft);
    font-size: 17px;
    margin-bottom: 48px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 20px 32px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    min-width: 240px;
    transition: border-color 0.25s, transform 0.25s;
}

.contact-link:hover {
    border-color: var(--ink);
    transform: translateY(-3px);
}

.contact-label {
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--ink-mute);
}

.contact-value {
    font-size: 16px;
    color: var(--ink);
    font-weight: 500;
}

/* ============ FOOTER ============ */
.footer {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 32px 40px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-mute);
    flex-wrap: wrap;
    gap: 12px;
}

/* ============ REVEAL ANIMATION ============ */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============ RESPONSIVE ============ */
@media (max-width: 880px) {
    .nav { padding: 16px 24px; }
    .nav-links { gap: 18px; font-size: 13px; }
    .brand-name { display: none; }

    .hero { padding: 60px 24px 80px; }
    .hero-meta { grid-template-columns: 1fr; gap: 16px; }

    .section { padding: 70px 24px; }
    .section-alt { padding: 70px 24px; }
    .section-title { font-size: 28px; }

    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .about-text .lead { font-size: 20px; }

    .exp-header { padding: 24px; }
    .exp-time { text-align: left; }
    .exp-body { padding: 24px; }
    .exp-role { font-size: 22px; }

    .exp-gap { padding: 0; }
    .exp-gap-line { margin-left: 12px; }

    .edu-card { padding: 24px; }
    .edu-time { text-align: left; }
    .edu-degree { font-size: 19px; }

    .projects-grid { grid-template-columns: 1fr; }
    .project-featured { grid-column: span 1; }

    .skills-grid { grid-template-columns: repeat(2, 1fr); }

    .contact-link { min-width: 100%; }
    .footer { padding: 24px; flex-direction: column; }
}

@media (max-width: 480px) {
    .skills-grid { grid-template-columns: 1fr; }
    .nav-links a:not(.nav-cta) { display: none; }
}