/* ======================================================
   Marwan Abbas — Personal Academic Site
   Dark futuristic + green glass panel + warm amber accents
   ====================================================== */

:root {
    --bg:          #060808;
    --bg-subtle:   #0c1210;
    --glass:       rgba(16, 42, 30, 0.45);
    --glass-border:rgba(40, 90, 60, 0.35);
    --glass-glow:  rgba(50, 120, 80, 0.08);
    --accent:      #e0913a;
    --accent-light:#f0b060;
    --accent-dim:  rgba(224, 145, 58, 0.15);
    --text:        #e8e4dc;
    --text-muted:  #9a9488;
    --text-dim:    #5e5a52;
    --green-soft:  #4caf80;
    --green-dim:   rgba(76, 175, 128, 0.12);
    --panel-w:     340px;
    --radius:      10px;
    --font-display:'Syne', sans-serif;
    --font-body:   'Plus Jakarta Sans', sans-serif;
    --font-mono:   'JetBrains Mono', monospace;
}

/* ---------- RESET ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
strong { font-weight: 600; color: var(--accent-light); }

/* ---------- AMBIENT BACKGROUND ---------- */
.bg-grid {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(50, 120, 80, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(50, 120, 80, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}
.bg-glow {
    position: fixed; border-radius: 50%; pointer-events: none; z-index: 0;
    filter: blur(120px); opacity: 0.5;
}
.bg-glow--1 {
    width: 600px; height: 600px; top: -200px; left: -100px;
    background: radial-gradient(circle, rgba(30, 80, 55, 0.35), transparent 70%);
}
.bg-glow--2 {
    width: 500px; height: 500px; bottom: -150px; right: -100px;
    background: radial-gradient(circle, rgba(200, 120, 40, 0.18), transparent 70%);
}

/* ---------- LAYOUT ---------- */
.layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* ---------- LEFT PANEL (Green Glass) ---------- */
.panel {
    position: fixed; top: 0; left: 0;
    width: var(--panel-w); height: 100vh;
    z-index: 100;
    display: flex; align-items: center; justify-content: center;
    padding: 32px 24px;
}
.panel__inner {
    width: 100%;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 36px 24px 28px;
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    box-shadow:
        0 0 60px var(--glass-glow),
        inset 0 1px 0 rgba(255,255,255,0.04);
    display: flex; flex-direction: column; align-items: center;
    text-align: center;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
}

.panel__photo-wrap {
    width: 120px; height: 120px; border-radius: 50%;
    border: 2px solid var(--glass-border);
    overflow: hidden; margin-bottom: 20px;
    box-shadow: 0 0 30px rgba(50, 120, 80, 0.15);
}
.panel__photo { width: 100%; height: 100%; object-fit: cover; }

.panel__name {
    font-family: var(--font-display);
    font-size: 1.65rem; font-weight: 800; line-height: 1.15;
    letter-spacing: -0.02em; margin-bottom: 8px;
}
.panel__role {
    font-family: var(--font-mono);
    font-size: 0.7rem; font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.15em;
    color: var(--accent); margin-bottom: 4px;
}
.panel__affiliation {
    font-size: 0.78rem; color: var(--text-muted); line-height: 1.45;
}
.panel__affiliation span { display: block; color: var(--green-soft); font-weight: 500; }

.panel__divider {
    width: 40px; height: 1px;
    background: var(--glass-border);
    margin: 16px 0;
}

/* Social links */
.panel__links {
    display: flex; gap: 16px;
}
.panel__links a {
    color: var(--text-dim);
    font-size: 1.1rem;
    transition: color 0.25s, transform 0.25s;
}
.panel__links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* Tags */
.panel__tags {
    display: flex; flex-wrap: wrap; gap: 6px; justify-content: center;
}
.panel__tags li {
    font-size: 0.65rem; font-weight: 500;
    padding: 3px 10px; border-radius: 999px;
    background: var(--green-dim);
    color: var(--green-soft);
    border: 1px solid rgba(76, 175, 128, 0.15);
    letter-spacing: 0.02em;
}

/* Nav */
.panel__nav {
    display: flex; flex-direction: column; gap: 2px; width: 100%;
}
.panel__nav-link {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem; font-weight: 500;
    padding: 8px 14px; border-radius: 8px;
    color: var(--text-muted);
    transition: all 0.25s; text-align: left;
}
.panel__nav-link:hover,
.panel__nav-link.active {
    color: var(--text);
    background: rgba(224, 145, 58, 0.08);
}
.panel__nav-link.active {
    color: var(--accent);
    background: var(--accent-dim);
}

/* ---------- MOBILE HEADER ---------- */
.mobile-header {
    display: none;
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 200;
    padding: 14px 20px;
    background: rgba(6, 8, 8, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    justify-content: space-between; align-items: center;
}
.mobile-header__left { display: flex; align-items: center; gap: 10px; }
.mobile-header__avatar {
    width: 32px; height: 32px; border-radius: 50%; object-fit: cover;
    border: 1px solid var(--glass-border);
}
.mobile-header__name {
    font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
}
.mobile-header__toggle {
    background: none; border: none; cursor: pointer;
    display: flex; flex-direction: column; gap: 5px; padding: 6px;
}
.mobile-header__toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--text); border-radius: 2px; transition: all 0.3s;
}
.mobile-header__toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-header__toggle.open span:nth-child(2) { opacity: 0; }
.mobile-header__toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- MAIN CONTENT — fills all space right of panel ---------- */
.content {
    margin-left: var(--panel-w);
    flex: 1;
    padding: 0 80px;
}

/* ---------- SECTIONS ---------- */
.section {
    padding: 80px 0 60px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.section--last { border-bottom: none; }

.section__label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem; font-weight: 500;
    text-transform: uppercase; letter-spacing: 0.2em;
    color: var(--accent); margin-bottom: 16px;
}
.section__title {
    font-family: var(--font-display);
    font-size: 2.1rem; font-weight: 800;
    line-height: 1.2; letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.section__body { max-width: 740px; }
.section__body p {
    color: var(--text-muted); font-size: 0.95rem;
    margin-bottom: 14px; line-height: 1.7;
}

/* ---------- TIMELINE ---------- */
.timeline {
    margin-top: 36px;
    padding-left: 24px;
    border-left: 2px solid rgba(76, 175, 128, 0.18);
}
.timeline__item { position: relative; padding: 0 0 28px 24px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker {
    position: absolute; left: -30px; top: 5px;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--green-soft);
    box-shadow: 0 0 8px rgba(76,175,128,0.25);
}
.timeline__date {
    font-family: var(--font-mono);
    font-size: 0.68rem; color: var(--accent); letter-spacing: 0.06em;
}
.timeline__content h3 {
    font-family: var(--font-display);
    font-size: 0.92rem; font-weight: 700; margin: 2px 0 2px;
}
.timeline__content p { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- CARDS (Research Areas) ---------- */
.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}
.card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 22px 20px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-dim);
}
.card__icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: var(--accent-dim);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 0.9rem; margin-bottom: 14px;
}
.card__title {
    font-family: var(--font-display);
    font-size: 0.92rem; font-weight: 700; margin-bottom: 8px;
}
.card__text { font-size: 0.8rem; color: var(--text-muted); line-height: 1.6; }

/* ---------- PROJECTS / CLINICAL TRIALS ---------- */
.projects__heading {
    font-family: var(--font-display);
    font-size: 1.15rem; font-weight: 700; margin-bottom: 16px;
}
.projects__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.project {
    background: var(--bg-subtle);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: var(--radius);
    padding: 18px 16px;
    transition: border-color 0.3s;
}
.project:hover { border-color: var(--glass-border); }
.project__badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.6rem; font-weight: 500;
    padding: 2px 8px; border-radius: 4px;
    background: var(--green-dim);
    color: var(--green-soft);
    margin-bottom: 10px; letter-spacing: 0.06em;
}
.project h4 {
    font-family: var(--font-display);
    font-size: 0.85rem; font-weight: 700; margin-bottom: 6px;
}
.project p { font-size: 0.75rem; color: var(--text-muted); line-height: 1.55; }

/* ---------- PUBLICATIONS ---------- */
.pubs { display: flex; flex-direction: column; gap: 2px; }
.pub {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 18px 16px;
    border-radius: var(--radius);
    transition: background 0.25s;
}
.pub:hover { background: rgba(255,255,255,0.025); }
.pub__year {
    font-family: var(--font-mono);
    font-size: 0.72rem; font-weight: 500;
    color: var(--accent); min-width: 40px;
    padding-top: 3px; flex-shrink: 0;
}
.pub__info { flex: 1; }
.pub__info h3 {
    font-family: var(--font-display);
    font-size: 0.88rem; font-weight: 700;
    line-height: 1.4; margin-bottom: 6px;
}
.pub__authors { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 2px; }
.pub__venue { font-size: 0.72rem; color: var(--green-soft); font-style: italic; }
.pub__arrow {
    color: var(--text-dim); font-size: 0.7rem;
    flex-shrink: 0; padding-top: 4px;
    transition: color 0.25s, transform 0.25s;
}
.pub:hover .pub__arrow {
    color: var(--accent); transform: translate(2px, -2px);
}

.scholar-link {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem; font-weight: 500;
    color: var(--accent); margin-top: 24px; padding: 10px 0;
    transition: color 0.25s;
}
.scholar-link:hover { color: var(--accent-light); }
.scholar-link .ai { font-size: 1.1rem; }

/* ---------- FOOTER ---------- */
.footer { padding: 40px 0 32px; text-align: left; }
.footer p {
    font-size: 0.72rem; color: var(--text-dim);
    font-family: var(--font-mono);
}

/* ---------- ANIMATIONS ---------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}
.section__label,
.section__title,
.section__body,
.timeline,
.cards,
.projects,
.pubs,
.scholar-link {
    opacity: 0;
    animation: fadeUp 0.6s ease forwards;
    animation-play-state: paused;
}
.visible .section__label  { animation-play-state: running; animation-delay: 0s; }
.visible .section__title  { animation-play-state: running; animation-delay: 0.08s; }
.visible .section__body   { animation-play-state: running; animation-delay: 0.16s; }
.visible .timeline        { animation-play-state: running; animation-delay: 0.22s; }
.visible .cards           { animation-play-state: running; animation-delay: 0.12s; }
.visible .projects        { animation-play-state: running; animation-delay: 0.2s; }
.visible .pubs            { animation-play-state: running; animation-delay: 0.12s; }
.visible .scholar-link    { animation-play-state: running; animation-delay: 0.2s; }

.panel__inner { animation: fadeUp 0.7s ease 0.1s both; }

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.14); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1080px) {
    :root { --panel-w: 290px; }
    .content { padding: 0 40px; }
    .projects__grid { grid-template-columns: 1fr 1fr; }
    .section__title { font-size: 1.8rem; }
}

@media (max-width: 768px) {
    .panel { display: none; }
    .panel.open {
        display: flex;
        position: fixed; inset: 0;
        width: 100%; height: 100vh;
        z-index: 300;
        background: rgba(6, 8, 8, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 80px 24px 32px;
        animation: fadeUp 0.3s ease;
    }
    .panel.open .panel__inner {
        max-height: calc(100vh - 112px);
        overflow-y: auto;
    }
    .mobile-header { display: flex; }
    .content {
        margin-left: 0;
        padding: 70px 20px 0;
    }
    .section { padding: 48px 0 40px; }
    .section__title { font-size: 1.6rem; }
    .cards { grid-template-columns: 1fr; }
    .projects__grid { grid-template-columns: 1fr; }
    .timeline { padding-left: 18px; }
    .timeline__item { padding-left: 18px; }
    .timeline__marker { left: -24px; }
}

@media (max-width: 480px) {
    .section__title { font-size: 1.35rem; }
    .panel__name { font-size: 1.4rem; }
    .content { padding: 70px 16px 0; }
}