/* ==========================================================
   MOHD SAJID LONE — RESEARCH PORTFOLIO
   Modern blue laboratory theme
   ========================================================== */

:root {
  --sajid-blue-dark: #0b4f78;
  --sajid-blue: #147daf;
  --sajid-cyan: #16a4cf;
  --sajid-blue-pale: #edf6fb;
  --sajid-navy: #102638;
  --sajid-text: #263746;
  --sajid-muted: #667b89;
  --sajid-white: #ffffff;
  --sajid-border: #d8e5ec;
  --sajid-shadow: rgba(16, 53, 76, 0.13);
}


* {
  box-sizing: border-box;
}


html {
  scroll-behavior: smooth;
}


body.sajid-site {
  background: #ffffff;
  color: var(--sajid-text);
  font-family:
    "Segoe UI",
    Arial,
    Helvetica,
    sans-serif;
  margin: 0;
  overflow-x: hidden;
}


body.sajid-site a {
  color: inherit;
}


/* ==========================================================
   NAV
   ========================================================== */

.sajid-header {
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
  z-index: 50;
}


.sajid-nav {
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1240px;
  padding: 1rem 1.5rem;
}


.sajid-brand {
  align-items: center;
  color: #ffffff;
  display: flex;
  gap: 0.7rem;
  text-decoration: none;
}


.sajid-brand-icon {
  display: block;
  height: 43px;
  width: 43px;
}


.sajid-brand-icon svg {
  display: block;
  height: 100%;
  width: 100%;
}


.sajid-brand strong,
.sajid-brand small {
  display: block;
}


.sajid-brand strong {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}


.sajid-brand small {
  color: rgba(255,255,255,0.76);
  font-size: 0.7rem;
  margin-top: 0.1rem;
}


.sajid-nav-links {
  align-items: center;
  display: flex;
  gap: 1.25rem;
}


.sajid-nav-links a {
  color: rgba(255,255,255,0.88);
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
}


.sajid-nav-links a:hover,
.sajid-nav-links a:focus-visible {
  color: #ffffff;
}


.sajid-nav-links .sajid-nav-lab {
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
}


.sajid-menu-button {
  appearance: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: none;
  padding: 0.5rem;
}


.sajid-menu-button span {
  background: #ffffff;
  border-radius: 99px;
  display: block;
  height: 2px;
  margin: 5px 0;
  width: 25px;
}


/* ==========================================================
   HERO
   ========================================================== */

.sajid-hero {
  background:
    linear-gradient(
      110deg,
      rgba(8,57,94,0.97),
      rgba(18,110,161,0.91) 58%,
      rgba(31,144,190,0.84)
    );
  color: #ffffff;
  min-height: 660px;
  overflow: hidden;
  padding: 9rem 1.5rem 8rem;
  position: relative;
}


.sajid-hero::before {
  background:
    radial-gradient(
      circle at 76% 35%,
      rgba(255,255,255,0.14),
      transparent 21%
    ),
    radial-gradient(
      circle at 90% 0%,
      rgba(102,207,243,0.32),
      transparent 28%
    );
  content: "";
  inset: 0;
  position: absolute;
}


.sajid-hero-pattern {
  border: 2px solid rgba(255,255,255,0.08);
  border-radius: 50%;
  height: 540px;
  position: absolute;
  right: -120px;
  top: 50px;
  width: 540px;
}


.sajid-hero-pattern::before,
.sajid-hero-pattern::after {
  border: 2px solid rgba(255,255,255,0.07);
  border-radius: 50%;
  content: "";
  position: absolute;
}


.sajid-hero-pattern::before {
  inset: 70px;
}


.sajid-hero-pattern::after {
  inset: 145px;
}


.sajid-hero-inner {
  align-items: center;
  display: grid;
  gap: 4rem;
  grid-template-columns: minmax(0,1.35fr) minmax(280px,0.65fr);
  margin: 0 auto;
  max-width: 1160px;
  position: relative;
  z-index: 2;
}


.sajid-hero-eyebrow {
  color: #9ce8ff;
  display: block;
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  margin-bottom: 0.9rem;
  text-transform: uppercase;
}


.sajid-hero h1 {
  font-size: clamp(3rem,7vw,5.8rem);
  line-height: 0.98;
  margin: 0;
  max-width: 760px;
}


.sajid-hero-title {
  color: #bcecff;
  font-size: 1.08rem;
  font-weight: 700;
  margin: 1.3rem 0 0;
}


.sajid-hero-intro {
  color: rgba(255,255,255,0.86);
  font-size: 1.08rem;
  line-height: 1.75;
  margin: 1.1rem 0 0;
  max-width: 720px;
}


.sajid-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.8rem;
}


.sajid-button {
  border-radius: 999px;
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.75rem 1.15rem;
  text-decoration: none;
  text-transform: uppercase;
}


.sajid-button-light {
  background: #ffffff;
  color: var(--sajid-blue-dark) !important;
}


.sajid-button-outline {
  border: 1.5px solid rgba(255,255,255,0.72);
  color: #ffffff !important;
}


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


.sajid-hero-profile {
  background: rgba(255,255,255,0.11);
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 25px;
  backdrop-filter: blur(9px);
  padding: 1.2rem;
}


.sajid-profile-image-wrap {
  background: rgba(255,255,255,0.13);
  border-radius: 19px;
  height: 310px;
  overflow: hidden;
}


.sajid-profile-image {
  height: 100%;
  object-fit: cover;
  object-position: center 32%;
  width: 100%;
}


.sajid-profile-mini {
  margin-top: 1rem;
  text-align: center;
}


.sajid-profile-mini strong,
.sajid-profile-mini span {
  display: block;
}


.sajid-profile-mini strong {
  font-size: 1.05rem;
}


.sajid-profile-mini span {
  color: rgba(255,255,255,0.75);
  font-size: 0.76rem;
  margin-top: 0.2rem;
}


/* ==========================================================
   FEATURE STRIP
   ========================================================== */

.sajid-feature-strip {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(4,minmax(0,1fr));
  margin: -70px auto 5rem;
  max-width: 1100px;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}


.sajid-feature-card {
  background: #ffffff;
  border: 1px solid var(--sajid-border);
  box-shadow: 0 15px 35px var(--sajid-shadow);
  min-height: 260px;
  padding: 1.5rem 1.2rem 2.1rem;
  position: relative;
  text-align: center;
}


.sajid-feature-icon {
  color: var(--sajid-blue);
  height: 60px;
  margin: 0 auto 0.8rem;
  width: 60px;
}


.sajid-feature-icon svg {
  height: 100%;
  width: 100%;
}


.sajid-feature-card h2 {
  color: var(--sajid-navy);
  font-size: 1.02rem;
  margin: 0 0 0.6rem;
}


.sajid-feature-card p {
  color: var(--sajid-muted);
  font-size: 0.84rem;
  line-height: 1.55;
  margin: 0;
}


.sajid-feature-number {
  align-items: center;
  background: var(--sajid-blue-dark);
  border-radius: 50%;
  bottom: -14px;
  color: #ffffff;
  display: flex;
  font-size: 0.7rem;
  height: 30px;
  justify-content: center;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
  width: 30px;
}


.sajid-feature-card:nth-child(2) .sajid-feature-number {
  background: var(--sajid-cyan);
}


/* ==========================================================
   GENERAL SECTIONS
   ========================================================== */

.sajid-section {
  margin: 0 auto;
  max-width: 1160px;
  padding: 5.5rem 1.5rem;
}


.sajid-section-heading {
  margin-bottom: 2.3rem;
  max-width: 750px;
}


.sajid-section-heading > span {
  color: var(--sajid-cyan);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}


.sajid-section-heading h2 {
  color: var(--sajid-navy);
  font-size: clamp(2rem,4vw,3.1rem);
  line-height: 1.12;
  margin: 0.4rem 0 0.7rem;
}


.sajid-section-heading > p {
  color: var(--sajid-muted);
  line-height: 1.7;
  margin: 0;
}


/* ==========================================================
   ABOUT
   ========================================================== */

.sajid-about-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0,1.25fr) minmax(300px,0.75fr);
}


.sajid-about-copy p {
  line-height: 1.8;
}


.sajid-large-copy {
  color: var(--sajid-navy);
  font-size: 1.25rem;
}


.sajid-about-panel {
  background: var(--sajid-blue-pale);
  border-left: 5px solid var(--sajid-cyan);
  padding: 1.7rem;
}


.sajid-about-panel h3 {
  color: var(--sajid-blue-dark);
  margin-top: 0;
}


.sajid-about-panel > p {
  line-height: 1.7;
}


.sajid-stat-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2,minmax(0,1fr));
  margin-top: 1.4rem;
}


.sajid-stat-grid div {
  background: #ffffff;
  border: 1px solid var(--sajid-border);
  padding: 0.9rem;
}


.sajid-stat-grid strong,
.sajid-stat-grid span {
  display: block;
}


.sajid-stat-grid strong {
  color: var(--sajid-blue-dark);
  font-size: 0.82rem;
}


.sajid-stat-grid span {
  color: var(--sajid-muted);
  font-size: 0.73rem;
  margin-top: 0.15rem;
}


/* ==========================================================
   RESEARCH
   ========================================================== */

.sajid-section-blue {
  background: var(--sajid-blue-dark);
  box-shadow:
    -50vw 0 0 var(--sajid-blue-dark),
    50vw 0 0 var(--sajid-blue-dark);
  color: #ffffff;
}


.sajid-heading-light h2 {
  color: #ffffff;
}


.sajid-heading-light > p {
  color: rgba(255,255,255,0.72);
}


.sajid-research-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(2,minmax(0,1fr));
}


.sajid-research-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.17);
  min-height: 245px;
  padding: 1.5rem;
}


.sajid-research-index {
  color: #8ce8ff;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}


.sajid-research-card h3 {
  color: #ffffff;
  font-size: 1.2rem;
  margin: 0.55rem 0 0.6rem;
}


.sajid-research-card p {
  color: rgba(255,255,255,0.73);
  line-height: 1.65;
  margin: 0;
}


/* ==========================================================
   TIMELINE
   ========================================================== */

.sajid-timeline {
  border-left: 2px solid var(--sajid-border);
  margin-left: 13px;
  padding-left: 2rem;
}


.sajid-timeline-item {
  padding: 0 0 3rem;
  position: relative;
}


.sajid-timeline-item:last-child {
  padding-bottom: 0;
}


.sajid-timeline-marker {
  background: var(--sajid-cyan);
  border: 5px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--sajid-cyan);
  height: 18px;
  left: -42px;
  position: absolute;
  top: 4px;
  width: 18px;
}


.sajid-timeline-place {
  color: var(--sajid-cyan);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}


.sajid-timeline-content h3 {
  color: var(--sajid-navy);
  font-size: 1.35rem;
  margin: 0.35rem 0 0.55rem;
}


.sajid-timeline-content p {
  line-height: 1.7;
  margin: 0;
  max-width: 850px;
}


/* ==========================================================
   PUBLICATIONS
   ========================================================== */

.sajid-publications-section {
  background: #f7fafc;
  box-shadow:
    -50vw 0 0 #f7fafc,
    50vw 0 0 #f7fafc;
}


.sajid-publication-list {
  display: grid;
  gap: 1rem;
}


.sajid-publication {
  align-items: start;
  background: #ffffff;
  border: 1px solid var(--sajid-border);
  display: grid;
  gap: 1.3rem;
  grid-template-columns: 75px minmax(0,1fr);
  padding: 1.35rem;
}


.sajid-pub-year {
  color: var(--sajid-cyan);
  font-size: 1.15rem;
  font-weight: 900;
}


.sajid-pub-journal {
  color: var(--sajid-blue);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}


.sajid-publication h3 {
  color: var(--sajid-navy);
  font-size: 1.05rem;
  line-height: 1.45;
  margin: 0.3rem 0 0.45rem;
}


.sajid-publication p {
  color: var(--sajid-muted);
  font-size: 0.83rem;
  line-height: 1.5;
  margin: 0 0 0.65rem;
}


.sajid-publication a {
  color: var(--sajid-blue) !important;
  font-size: 0.8rem;
  font-weight: 800;
  text-decoration: none;
}


/* ==========================================================
   EXPERTISE
   ========================================================== */

.sajid-skill-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}


.sajid-skill-cloud span {
  background: var(--sajid-blue-pale);
  border: 1px solid #c7e2ef;
  border-radius: 999px;
  color: var(--sajid-blue-dark);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.65rem 0.9rem;
}


/* ==========================================================
   CONTACT
   ========================================================== */

.sajid-contact {
  align-items: center;
  background:
    linear-gradient(
      110deg,
      var(--sajid-blue-dark),
      var(--sajid-blue)
    );
  color: #ffffff;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  padding: 4rem max(1.5rem, calc((100vw - 1160px) / 2));
}


.sajid-contact > div:first-child span {
  color: #a9e9fb;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}


.sajid-contact h2 {
  font-size: 2rem;
  margin: 0.35rem 0;
}


.sajid-contact p {
  color: rgba(255,255,255,0.73);
  margin: 0;
}


.sajid-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}


/* ==========================================================
   FOOTER
   ========================================================== */

.sajid-footer {
  align-items: center;
  background: #071d2b;
  color: rgba(255,255,255,0.62);
  display: flex;
  font-size: 0.73rem;
  justify-content: space-between;
  padding: 1.3rem max(1.5rem, calc((100vw - 1160px) / 2));
}


.sajid-footer p {
  margin: 0;
}


/* ==========================================================
   RESPONSIVE
   ========================================================== */

@media (max-width: 920px) {

  .sajid-feature-strip {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }


  .sajid-hero-inner,
  .sajid-about-grid {
    grid-template-columns: 1fr;
  }


  .sajid-hero-profile {
    max-width: 380px;
  }


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

}


@media (max-width: 760px) {

  .sajid-menu-button {
    display: block;
  }


  .sajid-nav-links {
    background: var(--sajid-blue-dark);
    display: none;
    left: 1rem;
    padding: 1rem;
    position: absolute;
    right: 1rem;
    top: 74px;
  }


  .sajid-nav-links.is-open {
    display: grid;
    gap: 0.9rem;
  }


  .sajid-feature-strip {
    margin-top: -40px;
  }


  .sajid-contact {
    align-items: flex-start;
    flex-direction: column;
  }


  .sajid-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.3rem;
  }

}


@media (max-width: 560px) {

  .sajid-hero {
    min-height: auto;
    padding-top: 7rem;
  }


  .sajid-feature-strip {
    grid-template-columns: 1fr;
  }


  .sajid-stat-grid {
    grid-template-columns: 1fr;
  }


  .sajid-publication {
    grid-template-columns: 1fr;
  }


  .sajid-pub-year {
    margin-bottom: -0.4rem;
  }

}


@media (prefers-reduced-motion: reduce) {

  html {
    scroll-behavior: auto;
  }


  .sajid-button {
    transition: none;
  }

}
/* Fixed navigation once the user begins scrolling */

.sajid-header.is-scrolled {
  background: rgba(7, 45, 69, 0.96);
  box-shadow: 0 6px 22px rgba(0,0,0,0.12);
  position: fixed;
}


.sajid-header.is-scrolled .sajid-nav {
  border-bottom-color: transparent;
}