/* =========================================================
   DESIGN TOKENS
   Palette grounded in the subject: diffusion / denoising.
   Cool paper background, deep indigo ink, indigo→cyan
   gradient standing in for a noise-schedule ramp.
   ========================================================= */
:root {
    --bg: #f7f7fb;
    --surface: #ffffff;
    --surface-alt: #eef0f9;
    --ink: #14152b;
    --ink-soft: #5b5d78;
    --muted: #82849c;
    --accent: #4338ca;
    --accent-hover: #3730a3;
    --signal: #06b6d4;
    --accent-soft: #ecebfc;
    --signal-soft: #e0fbfc;
    --border: #e3e3f0;
    --border-strong: #c9cbe0;

    --font-display: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 18px;

    --shadow-sm: 0 1px 2px rgba(20, 21, 43, 0.05);
    --shadow-md: 0 10px 30px rgba(20, 21, 43, 0.07);
    --shadow-lg: 0 24px 56px rgba(20, 21, 43, 0.1);

    --max-width: 1150px;
    --nav-height: 64px;

    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 12px);
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.15;
    letter-spacing: -0.01em;
    font-weight: 600;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s var(--ease);
}
a:hover { color: var(--accent-hover); }

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

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

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

/* =========================================================
   MOTION
   ========================================================= */
.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* =========================================================
   NAVIGATION
   ========================================================= */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1200;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    background: rgba(247, 247, 251, 0.7);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s var(--ease);
}
.nav.scrolled {
    background: rgba(247, 247, 251, 0.92);
    border-bottom-color: var(--border);
}
.nav-inner {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--ink);
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.brand-mark {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    margin-right: 9px;
    background: linear-gradient(135deg, var(--accent), var(--signal));
    flex-shrink: 0;
}
.nav-links {
    display: flex;
    gap: 2px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.nav-links a {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--ink-soft);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.15s var(--ease);
    white-space: nowrap;
}
.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent);
    background: var(--accent-soft);
}
.nav-links a.nav-active {
    color: var(--accent);
    font-weight: 600;
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--ink);
    padding: 8px;
    border-radius: 8px;
    transition: all 0.15s var(--ease);
    line-height: 1;
}
.menu-toggle:hover { background: var(--surface-alt); color: var(--accent); }

/* Mobile Menu */
.mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 1300;
    background: rgba(20, 21, 43, 0.35);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease);
}
.mobile-overlay.active { opacity: 1; visibility: visible; }
.mobile-panel {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 300px;
    max-width: 85vw;
    z-index: 1400;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease-spring);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.mobile-overlay.active .mobile-panel { transform: translateX(0); }
.mobile-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.mobile-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--ink-soft);
    padding: 6px;
    border-radius: 8px;
    transition: all 0.15s var(--ease);
}
.mobile-close:hover { background: var(--surface-alt); color: var(--ink); }
.mobile-panel a {
    display: block;
    padding: 12px 14px;
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--ink-soft);
    border-radius: 8px;
    transition: all 0.15s var(--ease);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.mobile-panel a:hover { background: var(--accent-soft); color: var(--accent); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
    padding: calc(var(--nav-height) + 36px) 24px 36px;
    position: relative;
    overflow: hidden;
}
.hero-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 40px;
    align-items: center;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    border: 1px solid var(--border);
}
.hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    text-align: center;
}
.fig-frame {
    position: relative;
    width: 190px;
    height: 190px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}
.fig-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-name h1 {
    font-size: 1.35rem;
    margin-bottom: 4px;
}
.hero-name .role {
    color: var(--muted);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.01em;
}
.hero-cta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.btn {
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    transition: all 0.2s var(--ease);
    letter-spacing: -0.005em;
    white-space: nowrap;
    font-family: var(--font-body);
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    color: #fff;
}
.btn-outline {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--ink-soft);
}
.btn-outline:hover {
    background: var(--surface-alt);
    border-color: var(--ink-soft);
    color: var(--ink);
}
.btn-cv {
    background: var(--ink);
    color: #fff;
    font-weight: 700;
}
.btn-cv:hover {
    background: var(--accent);
    transform: translateY(-1px);
    color: #fff;
}
.btn-sm { padding: 7px 13px; font-size: 0.8rem; border-radius: 7px; }

.hero-right { display: flex; flex-direction: column; gap: 16px; }

.hero-summary h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}
.hero-summary p {
    color: var(--ink-soft);
    margin-bottom: 12px;
    font-size: 0.95rem;
    line-height: 1.65;
}
.hero-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.stat-pill {
    font-family: var(--font-mono);
    background: var(--signal-soft);
    color: #0a7d8c;
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.76rem;
    letter-spacing: 0.01em;
    white-space: nowrap;
}
.hero-sub-text {
    margin-top: 6px;
    color: var(--muted);
    font-weight: 400;
    font-size: 0.88rem;
    line-height: 1.55;
}
.hero-sub-text strong { color: var(--ink-soft); }

/* =========================================================
   SECTIONS
   ========================================================= */
.section { padding: 44px 24px; position: relative; }
.section-alt { background: var(--surface-alt); }
.section-header { margin-bottom: 26px; }
.section-heading-group { display: flex; flex-direction: column; gap: 8px; }

.section-title {
    font-size: 1.3rem;
    color: var(--ink);
}
.section-sub {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.88rem;
}
.section-sub-link { font-weight: 600; }

/* =========================================================
   ABOUT
   ========================================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    align-items: start;
}
.about-card {
    background: var(--surface);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: border-color 0.2s var(--ease);
}
.about-card:hover { border-color: var(--border-strong); }
.about-bio h3 { margin-bottom: 10px; font-size: 1.02rem; }
.about-bio p { color: var(--ink-soft); margin-bottom: 12px; font-size: 0.91rem; line-height: 1.65; }
.about-note { color: var(--muted); font-size: 0.87rem; margin-top: 4px; }
.about-facts-title { margin-bottom: 12px; font-size: 1.02rem; }
.about-stats { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.about-stat {
    font-family: var(--font-mono);
    background: var(--accent-soft);
    color: var(--accent);
    padding: 6px 11px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.76rem;
}
.about-list {
    list-style: none;
    color: var(--ink-soft);
    font-weight: 400;
    line-height: 1.85;
    font-size: 0.9rem;
}
.about-list strong { color: var(--ink); font-weight: 600; }
.research-focus-block { margin-top: 18px; }
.research-focus-title { display: block; margin-bottom: 10px; font-size: 0.85rem; color: var(--ink); }
.tag-group { display: flex; flex-wrap: wrap; gap: 7px; }
.tag {
    background: var(--surface-alt);
    padding: 7px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.79rem;
    color: var(--ink-soft);
    border: 1px solid var(--border);
    transition: all 0.15s var(--ease);
}
.tag:hover { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

/* =========================================================
   RESEARCH
   ========================================================= */
.research-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--border);
}
.research-card h3 { font-size: 1.1rem; margin-bottom: 12px; color: var(--ink); }
.research-card > p { color: var(--ink-soft); line-height: 1.65; font-size: 0.91rem; }
.objective-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    margin-top: 22px;
}
.objective-card {
    background: var(--surface-alt);
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: all 0.2s var(--ease);
}
.objective-card:hover {
    background: var(--surface);
    border-color: var(--border);
}
.objective-card .obj-icon {
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 10px;
    display: block;
}
.objective-card h4 { margin-bottom: 6px; font-size: 0.9rem; }
.objective-card p { color: var(--muted); font-size: 0.84rem; line-height: 1.5; font-family: var(--font-body); }

/* =========================================================
   SKILLS
   ========================================================= */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.skill-card {
    background: var(--surface);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill-card .skill-name {
    font-family: var(--font-display);
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.92rem;
}
.skill-card .skill-desc {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.83rem;
    line-height: 1.45;
}

/* =========================================================
   PROJECTS
   ========================================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 16px;
}
.project-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 18px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all 0.2s var(--ease);
}
.project-card:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.project-thumb {
    width: 100%;
    height: 110px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--surface-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
}
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-thumb .thumb-icon { font-size: 26px; color: var(--accent); opacity: 0.7; }
.project-thumb.icon-only {
    width: fit-content;
    min-width: 52px;
    height: 52px;
    padding: 0 16px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    align-self: flex-start;
}
.project-thumb.icon-only .thumb-icon { font-size: 20px; }
.project-title { font-family: var(--font-display); font-weight: 600; font-size: 0.98rem; }
.project-meta-line { font-weight: 500; color: var(--muted); font-size: 0.8rem; font-family: var(--font-mono); }
.project-desc { color: var(--muted); font-size: 0.86rem; flex: 1; line-height: 1.5; }
.project-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 2px; }
.thesis-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent);
    font-size: 0.78rem;
}

.entrepreneur-intro { color: var(--ink-soft); margin-bottom: 20px; font-size: 0.91rem; max-width: 65ch; }

/* =========================================================
   PUBLICATIONS
   ========================================================= */
.pub-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
.pub-card {
    background: var(--surface);
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}
.pub-card:hover { border-color: var(--border-strong); }
.pub-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 5px;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.pub-tag-journal { background: var(--signal-soft); color: #0a7d8c; }
.pub-tag-conference { background: var(--accent-soft); color: var(--accent); }
.pub-title { font-family: var(--font-display); font-weight: 600; font-size: 0.93rem; margin: 10px 0 6px; }
.pub-meta { color: var(--muted); font-size: 0.82rem; margin-bottom: 8px; font-family: var(--font-mono); }
.pub-links { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 6px; }
.pub-links a { font-weight: 600; font-size: 0.83rem; }

/* =========================================================
   CERTIFICATIONS
   ========================================================= */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 14px;
}
.cert-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 18px;
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}
.cert-card:hover { border-color: var(--border-strong); }
.cert-header { display: flex; align-items: flex-start; gap: 14px; }
.cert-icon { font-size: 1.35rem; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.cert-details { flex: 1; }
.cert-name { font-family: var(--font-display); font-weight: 600; margin-bottom: 4px; font-size: 0.95rem; }
.cert-org { color: var(--muted); font-size: 0.85rem; margin-bottom: 4px; }
.cert-meta { display: flex; gap: 12px; font-size: 0.78rem; color: var(--muted); font-family: var(--font-mono); }
.cert-link { margin-top: 8px; }

/* =========================================================
   HONORS
   ========================================================= */
.honors-list { display: flex; flex-direction: column; gap: 12px; }
.honor-item {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 18px;
    border: 1px solid var(--border);
    transition: all 0.2s var(--ease);
}
.honor-item:hover { border-color: var(--border-strong); }
.honor-title {
    font-family: var(--font-display);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.96rem;
    display: flex;
    align-items: center;
    gap: 9px;
}
.honor-icon { color: var(--accent); font-size: 0.9rem; flex-shrink: 0; }
.honor-details { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.6; }
.service-group-title {
    font-size: 0.98rem;
    color: var(--ink);
    margin: 22px 0 12px;
}
.service-group-title:first-of-type { margin-top: 0; }
.service-list {
    list-style: disc;
    margin: 10px 0 0 18px;
    color: var(--ink-soft);
    font-size: 0.88rem;
    line-height: 1.65;
}
.service-list li { margin-bottom: 4px; }
.honor-link-row { margin-top: 8px; }
.honor-link { font-weight: 600; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 16px;
}
.contact-card {
    background: var(--surface);
    padding: 22px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}
.contact-card-title { margin-bottom: 10px; font-size: 1rem; }
.contact-card-text { color: var(--ink-soft); margin-bottom: 14px; font-size: 0.9rem; }
.contact-list { list-style: none; font-weight: 400; color: var(--ink-soft); line-height: 1.95; font-size: 0.9rem; }
.contact-list i { margin-right: 10px; color: var(--accent); width: 16px; text-align: center; }
.contact-social-row { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }
.contact-card-centered {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    text-align: center;
    background: var(--ink);
    border-color: var(--ink);
}
.contact-cta-title { font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; color: #fff; }
.contact-cta-text { color: rgba(255, 255, 255, 0.65); font-size: 0.87rem; }
.contact-card-centered .btn-outline {
    border-color: rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.85);
}
.contact-card-centered .btn-outline:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255,255,255,0.4); color: #fff; }

/* =========================================================
   FOOTER
   ========================================================= */
footer {
    padding: 22px 24px;
    text-align: center;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    border-top: 1px solid var(--border);
}

/* =========================================================
   MODAL
   ========================================================= */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 21, 43, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 28px;
    max-width: 680px;
    width: 92%;
    max-height: 82vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px) scale(0.98);
    transition: all 0.35s var(--ease-spring);
}
.modal-overlay.active .modal-content { transform: translateY(0) scale(1); }
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.modal-title { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; }
.modal-close {
    background: none;
    border: none;
    font-size: 1.15rem;
    cursor: pointer;
    color: var(--muted);
    padding: 8px;
    border-radius: 8px;
    transition: all 0.15s var(--ease);
}
.modal-close:hover { background: var(--surface-alt); color: var(--ink); }
.modal-body { color: var(--ink-soft); line-height: 1.7; font-size: 0.91rem; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1100px) {
    .hero-inner { grid-template-columns: 1fr; gap: 26px; padding: 28px; text-align: center; }
    .hero-left { order: 1; }
    .hero-right { order: 2; align-items: center; }
    .eyebrow-tag { justify-content: center; }
    .hero-summary h3, .hero-summary p { text-align: center; }
    .hero-meta { justify-content: center; }
    .fig-frame { width: 160px; height: 160px; }
    .about-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .certifications-grid { grid-template-columns: 1fr; }
    .pub-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .menu-toggle { display: block; }
    .section-title { font-size: 1.15rem; }
}
@media (max-width: 640px) {
    .skills-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .certifications-grid { grid-template-columns: 1fr; }
    .pub-grid { grid-template-columns: 1fr; }
    .hero-inner { padding: 20px; border-radius: var(--radius); }
    .hero { padding: calc(var(--nav-height) + 18px) 12px 22px; }
    .section { padding: 32px 12px; }
    .container { padding: 0 12px; }
    .fig-frame { width: 140px; height: 140px; }
    .hero-name h1 { font-size: 1.15rem; }
    .objective-grid { grid-template-columns: 1fr; }
    .btn { font-size: 0.83rem; padding: 9px 15px; }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal, .reveal.revealed {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .btn, .tag, .skill-card, .project-card, .about-card,
    .cert-card, .honor-item, .pub-card, .objective-card {
        transition: none;
    }
}