:root {
  --ink: #17212b;
  --muted: #657487;
  --line: #d9e2ea;
  --paper: #f6f8fa;
  --panel: #ffffff;
  --accent: #144f8f;
  --accent-dark: #0d3768;
  --aqua: #0f766e;
  --gold: #d6a21e;
  --soft: #e8f3f1;
  --shadow: 0 18px 48px rgba(24, 36, 50, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.62;
}

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

a:hover { text-decoration: underline; }

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 248, 250, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(217, 226, 234, 0.8);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 850;
  min-width: fit-content;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  width: 46px;
  height: 46px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 3px;
  border: 1px solid var(--line);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
  overflow-x: auto;
  padding-bottom: 4px;
}

.nav-links a {
  padding: 8px 9px;
  border-radius: 8px;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--accent-dark);
  background: var(--soft);
  text-decoration: none;
}

/* Hero Section */
.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 88% 18%, rgba(15, 118, 110, 0.32), transparent 26%),
    linear-gradient(90deg, rgba(13, 35, 62, 0.92), rgba(13, 35, 62, 0.58)),
    url("najah-campus.jpg") center/cover;
  padding: 70px 0 92px;
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(280px, 360px);
  gap: 36px;
  align-items: end;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: #d6f6f0;
  font-weight: 800;
  font-size: 14px;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: var(--gold);
  flex-shrink: 0;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.04;
  letter-spacing: 0;
  max-width: 820px;
}

h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.16;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.25;
}

.lead {
  max-width: 720px;
  margin: 22px 0 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2.1vw, 23px);
}

.focus-line {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 0 0 28px;
}

.focus-line span {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-weight: 800;
  font-size: 13px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 17px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.button.primary {
  color: #fff;
  background: var(--accent);
}

.button.primary:hover {
  background: var(--accent-dark);
  text-decoration: none;
}

.button.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.button.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  text-decoration: none;
}

/* Hero Card */
.hero-card {
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.portrait {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  border-radius: 8px;
  margin-bottom: 18px;
  display: block;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 15px;
}

.contact-list strong {
  display: block;
  color: var(--ink);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.contact-list a {
  color: var(--accent-dark);
  font-weight: 600;
}

.contact-list a:hover {
  text-decoration: underline;
}

/* Sections */
.section {
  padding: 78px 0;
}

.section.alt {
  background: #edf3f6;
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-head h2 {
  margin: 0 0 10px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

/* Panels & Cards */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 10px 26px rgba(24, 36, 50, 0.07);
}

.panel p {
  margin: 0 0 14px;
  color: var(--muted);
}

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

.panel h3 {
  margin: 0 0 16px;
}

/* Profile Grid */
.profile-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: stretch;
}

/* Visual Signals */
.visual-signals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.signal {
  position: relative;
  overflow: hidden;
  min-height: 170px;
  padding: 22px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 10px 26px rgba(24, 36, 50, 0.07);
}

.signal::before {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  border: 18px solid rgba(20, 79, 143, 0.1);
  border-radius: 50%;
  right: -48px;
  top: -48px;
}

.signal.water::before {
  border-color: rgba(15, 118, 110, 0.13);
}

.signal.network::before {
  border-color: rgba(214, 162, 30, 0.18);
}

.signal h3 {
  position: relative;
  margin: 0 0 8px;
  font-size: 20px;
}

.signal p {
  position: relative;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

/* Impact Dashboard */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

.impact-card {
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  cursor: pointer;
  min-height: 200px;
}

.impact-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(20, 79, 143, 0.15);
  text-decoration: none;
  transform: translateY(-2px);
}

.impact-number {
  font-size: 36px;
  font-weight: 900;
  color: var(--accent-dark);
  line-height: 1;
  margin-bottom: 8px;
}

.impact-label {
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.impact-description {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
  flex-grow: 1;
}

.impact-action {
  font-size: 13px;
  color: var(--accent-dark);
  font-weight: 700;
}

/* Research Areas */
.research-areas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.area-group {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.area-group h3 {
  color: var(--accent-dark);
  margin-bottom: 12px;
}

.area-list {
  margin: 0;
  padding-left: 20px;
  list-style: disc;
  color: var(--muted);
}

.area-list li {
  margin: 8px 0;
}

/* Timeline */
.timeline {
  display: grid;
  gap: 14px;
}

.item {
  display: grid;
  grid-template-columns: 175px 1fr;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.date {
  color: var(--accent-dark);
  font-weight: 850;
  font-size: 14px;
}

.item h3 {
  margin: 0 0 4px;
}

.org {
  margin: 0 0 12px;
  color: var(--gold);
  font-weight: 750;
  font-size: 14px;
}

.item ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 14px;
}

.item li {
  margin: 6px 0;
}

/* Education */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.education-card {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.education-card h3 {
  color: var(--accent-dark);
  margin-bottom: 4px;
}

.degree-detail {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 8px;
}

.institution {
  margin: 0 0 4px;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
}

.year {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 13px;
}

.eqf {
  margin: 0;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

/* Tags */
.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

/* Profile Links Grid */
.profile-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.profile-link {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.profile-link:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(20, 79, 143, 0.15);
  text-decoration: none;
}

.profile-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.profile-link h3 {
  color: var(--ink);
  margin-bottom: 8px;
}

.profile-link p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
/* Expert Services */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}

.service-card {
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 26px rgba(24, 36, 50, 0.07);
}

.service-card h3 {
  color: var(--accent-dark);
  margin-bottom: 10px;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.service-cta {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 30px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}

.service-cta h3 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 24px;
}

.service-cta p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}
/* Contact Band */
.contact-band {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 34px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
}

.contact-band h2 {
  margin: 0 0 8px;
  color: #fff;
}

.contact-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.contact-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Publication Lists */
.publication-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pub-item {
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.pub-item h4 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ink);
}

.pub-meta {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.pub-link {
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 13px;
}

.pub-link:hover {
  text-decoration: underline;
}

/* Supervision Table */
.supervision-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border-radius: 8px;
  overflow: hidden;
}

.supervision-table th {
  background: var(--accent);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  font-size: 14px;
}

.supervision-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.supervision-table tr:hover {
  background: var(--paper);
}

/* Project Cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.project-card {
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
}

.project-card h3 {
  color: var(--accent-dark);
  margin-bottom: 8px;
}

.project-meta {
  display: flex;
  gap: 12px;
  margin: 8px 0;
  flex-wrap: wrap;
}

.project-badge {
  display: inline-block;
  padding: 3px 8px;
  background: var(--soft);
  border: 1px solid var(--aqua);
  border-radius: 4px;
  color: var(--aqua);
  font-size: 12px;
  font-weight: 600;
}

.project-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  flex-grow: 1;
}

.project-card a {
  margin-top: 12px;
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 13px;
}

/* Activity Cards */
.activity-list {
  display: grid;
  gap: 16px;
}

.activity-item {
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  border-left: 4px solid var(--accent);
}

.activity-item h3 {
  margin: 0 0 4px;
}

.activity-date {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 8px;
}

.activity-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* Back to Home */
.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 24px;
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 14px;
}

.back-to-home:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  background: #f9fafb;
}

.footer .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: center;
}

.footer a {
  color: var(--accent-dark);
  font-weight: 600;
}

.footer a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
  .nav {
    min-height: auto;
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    gap: 2px;
  }

  .hero {
    min-height: 720px;
  }

 .hero-inner,
.profile-grid,
.visual-signals,
.education-grid,
.profile-links-grid,
.contact-band,
.service-cta {
  grid-template-columns: 1fr;
}

  .item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .research-areas {
    grid-template-columns: 1fr;
  }

  .contact-actions {
    justify-content: flex-start;
  }

  .footer .wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 58px 0;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 24px;
  }

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

  .supervision-table {
    font-size: 12px;
  }

  .supervision-table th,
  .supervision-table td {
    padding: 8px 12px;
  }

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