/* =========================================================
   SPEN Lab - Clean Stylesheet (Restored)
========================================================= */

:root {
  --bg: #fff2be;
  --surface: #f5f0dc;
  --border: #cfc4a8;
  --text: #2a2a2a;
  --text-soft: #4d4d4d;
  --dark: #0f0f0f;
  --white: #ffffff;
  --accent: #a28d5f;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

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

a:hover { text-decoration: underline; }

p, li { margin-bottom: 0.75rem; }

h1, h2, h3, h4, h5, h6,
.headline,
.sub-headline {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.01em;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.75rem 1rem 2rem;
}

/* ---------------- Header + Nav ---------------- */
header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 0.35rem 1rem;
  background: transparent;
}

.header-left,
.header-right {
  flex: 0 0 180px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.header-center {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.left-logo,
.right-logo,
.college-logo {
  display: block;
  width: auto;
  height: 220px;
  max-width: 100%;
  object-fit: contain;
}

.left-logo {
  height: 220px;
}

.nav-toggle {
  display: none;
  border: 0;
  background: #efe8d8;
  color: #121212;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  font-size: 1.3rem;
  cursor: pointer;
}

.nav-bar-bg { background: transparent; }

#navbar ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  align-items: center;
}

#navbar a {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.58);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

#navbar a.active { text-decoration: underline; }

/* ---------------- Shared Surfaces ---------------- */
.info-card,
.course-card,
.team-card,
.director-profile,
.supervisor-hero,
.tab-content.active,
.update-item,
.thanks-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.info-card,
.course-card,
.update-item,
.tab-content.active,
.supervisor-hero,
.thanks-card {
  padding: 1rem;
}

.page-title {
  text-align: center;
  margin-bottom: 1rem;
}

.page-title h1,
.page-title h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 400;
  margin-bottom: 0.35rem;
}

/* ---------------- Hero Pattern ---------------- */
.mockup-hero,
.updates-hero,
.research-hero-banner,
.teaching-hero-banner,
.service-hero-banner,
.team-hero-banner,
.thanks-hero-banner,
.supervisors-hero-banner {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  margin: 0;
}

.hero-background-image,
.updates-hero-bg,
.research-hero-bg,
.teaching-hero-bg,
.service-hero-bg,
.team-hero-bg,
.thanks-hero-bg,
.supervisors-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay,
.updates-hero-overlay,
.research-hero-overlay,
.teaching-hero-overlay,
.service-hero-overlay,
.team-hero-overlay,
.thanks-hero-overlay,
.supervisors-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.hero-content,
.updates-hero-content,
.research-hero-content,
.teaching-hero-content,
.service-hero-content,
.team-hero-content,
.thanks-hero-content,
.supervisors-hero-content {
  position: relative;
  z-index: 2;
  max-width: 940px;
  margin: 0 auto;
  padding: 8.7rem 1rem 1.8rem;
  text-align: center;
  color: var(--white);
}

.headline,
.hero-content h1,
.updates-hero-content h1,
.research-hero-content h1,
.teaching-hero-content h1,
.service-hero-content h1,
.team-hero-content h1,
.thanks-hero-content h1,
.supervisors-hero-content h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 0.45rem;
}

.sub-headline,
.hero-content p,
.updates-hero-content p,
.research-hero-content p,
.teaching-hero-content p,
.service-hero-content p,
.team-hero-content p,
.thanks-hero-content p,
.supervisors-hero-content p {
  font-size: clamp(1rem, 2.1vw, 1.45rem);
  line-height: 1.3;
}

/* ---------------- Buttons + Form ---------------- */
.cta-button,
.submit-button {
  display: inline-block;
  border: 1px solid #111;
  background: #fff;
  color: #111;
  padding: 0.65rem 1.35rem;
  border-radius: 0;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.form-container {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-group {
  flex: 1;
  margin-bottom: 0.9rem;
}

label {
  display: block;
  margin-bottom: 0.25rem;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #cfcfcf;
  border-radius: 4px;
  font-family: inherit;
}

/* ---------------- Page Scopes ---------------- */
.home-page .home-main,
.updates-page .updates-main,
.research-page main,
.teaching-page main,
.service-page main,
.team-page main,
.supervisors-page main,
.thanks-page main {
  max-width: 1120px;
}

.home-page .about-split {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.4rem;
}

.home-page .about-media img { width: 100%; }

.home-page .supervisor-panel {
  padding: 1.2rem 0;
  border-top: 1px solid #c9c0b1;
  border-bottom: 1px solid #c9c0b1;
}

.home-page .supervisor-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1rem;
}

.home-page .usm-heading {
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  margin-bottom: 0.4rem;
}

.updates-page .updates-timeline {
  display: grid;
  gap: 0.8rem;
}

.update-item { border-left: 5px solid var(--accent); }
.update-item h3 { margin-bottom: 0.3rem; }

.interests-grid,
.course-grid,
.team-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.interests-card {
  background: #101010;
  color: #fff;
  border-radius: 8px;
  padding: 1rem;
}

.interests-card h3 {
  color: #ffd100;
  margin-bottom: 0.45rem;
}

.interests-card ul,
.course-card ul {
  margin-left: 1.05rem;
}

.interests-card.animate { animation: fadeInUp 0.35s ease; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-list {
  list-style: none;
  display: flex;
  gap: 0.45rem;
  margin: 0.8rem 0;
  border-bottom: 1px solid var(--border);
}

.tab-link {
  background: #ece8de;
  border: 1px solid var(--border);
  border-bottom: 0;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}

.tab-link.active { background: var(--surface); }
.tab-content { display: none; }
.tab-content.active { display: block; }

.director-profile {
  display: flex;
  gap: 1rem;
  padding: 1rem;
}

.director-image img {
  width: 200px;
  max-width: 100%;
  border-radius: 6px;
}

.director-links,
.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.profile-info { overflow: hidden; }

.team-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
}

.supervisor-hero {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.supervisor-hero .professor-photo-large {
  max-width: 220px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.meeting-scheduler {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.6rem 1rem;
}

.book-meeting-cta {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.2rem 1rem 1.6rem;
  text-align: center;
}

footer {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 1rem;
}

.icon-strip { display: none !important; }

/* Specific fixes requested */
.home-page .hero-buttons { margin-top: 1.2rem; }

.teaching-page .course-card {
  display: flex;
  flex-direction: column;
}

.teaching-page .course-card .course-icon {
  display: block;
  width: 100%;
  height: 220px;
  max-width: 100%;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.teaching-page .course-card .course-content { flex: 1 1 auto; }

.research-page .interests-card {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.research-page .interests-card h3 { color: var(--text); }

.team-page .team-cards {
  grid-template-columns: repeat(auto-fit, minmax(320px, 320px));
  justify-content: center;
}

.team-page .team-card {
  width: 320px;
  max-width: 100%;
  margin: 0 auto;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
  .home-page .about-split,
  .home-page .supervisor-grid,
  .supervisor-hero,
  .director-profile {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  header {
    min-height: 68px;
    padding: 0.35rem 0.6rem;
  }

  .left-logo,
  .right-logo,
  .college-logo {
    height: 72px;
  }

  .header-left,
  .header-right { flex: 0 0 auto; }

  .header-center {
    justify-content: flex-start;
    margin-top: 0.3rem;
    position: relative;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #navbar { width: 100%; }

  #navbar ul {
    display: none;
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    right: 0;
    background: rgba(12, 12, 12, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 6px;
    overflow: hidden;
    flex-direction: column;
    gap: 0;
    z-index: 400;
  }

  header.nav-open nav ul,
  #navbar ul.showNav { display: flex; }

  #navbar ul a {
    display: block;
    padding: 0.8rem 1rem;
    text-align: center;
    color: #fff;
    text-shadow: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .mockup-hero,
  .updates-hero,
  .research-hero-banner,
  .teaching-hero-banner,
  .service-hero-banner,
  .team-hero-banner,
  .thanks-hero-banner,
  .supervisors-hero-banner {
    min-height: 320px;
  }

  .hero-content,
  .updates-hero-content,
  .research-hero-content,
  .teaching-hero-content,
  .service-hero-content,
  .team-hero-content,
  .thanks-hero-content,
  .supervisors-hero-content {
    padding-top: 6rem;
  }

  .home-page .hero-buttons { margin-top: 1rem; }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .team-card img { height: 180px; }

  .teaching-page .course-card .course-icon { height: 180px; }

  .team-page .team-cards { grid-template-columns: 1fr; }
  .team-page .team-card { width: 100%; }
}

@media (max-width: 480px) {
  .left-logo,
  .right-logo,
  .college-logo {
    height: 62px;
  }
}


/* Southern Miss logo size fix */
.header-left {
  flex: 0 0 320px;
}

.left-logo {
  height: 220px;
  max-width: none;
}

@media (max-width: 768px) {
  .header-left {
    flex: 0 0 180px;
  }

  .left-logo {
    height: 120px;
  }
}

@media (max-width: 480px) {
  .left-logo {
    height: 96px;
  }
}

/* Desktop header alignment + slightly larger Southern Miss logo */
@media (min-width: 769px) {
  header {
    display: grid;
    grid-template-columns: 360px 1fr 260px;
    align-items: center;
  }

  .header-left {
    flex: none;
    justify-content: flex-start;
    padding-left: 0.5rem;
  }

  .header-center {
    justify-content: center;
  }

  .header-right {
    flex: none;
    justify-content: flex-end;
    padding-right: 0.5rem;
  }

  .left-logo {
    height: 250px;
  }
}

/* Header top-lock alignment fix (desktop) */
@media (min-width: 769px) {
  header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    min-height: 120px;
    display: block;
    padding: 0;
  }

  .header-left,
  .header-center,
  .header-right {
    position: absolute;
    top: 10px;
    display: flex;
    align-items: flex-start;
  }

  .header-left {
    left: 18px;
    justify-content: flex-start;
  }

  .header-center {
    left: 50%;
    transform: translateX(-50%);
    justify-content: center;
    width: max-content;
  }

  .header-right {
    right: 18px;
    justify-content: flex-end;
  }

  .left-logo {
    height: 170px;
    width: auto;
    max-width: none;
  }

  .right-logo {
    height: 115px;
    width: auto;
  }

  #navbar ul {
    margin: 0;
  }
}

/* Southern Miss logo crop into top-left corner (desktop) */
@media (min-width: 769px) {
  .header-left {
    width: 190px;
    height: 86px;
    overflow: hidden;
    padding-left: 0;
  }

  .left-logo {
    height: 165px;
    width: auto;
    transform: translate(-44px, -26px);
    transform-origin: top left;
  }
}

/* Slightly larger Southern Miss logo */
@media (min-width: 769px) {
  .left-logo {
    height: 185px;
  }
}

/* Tighter Southern Miss corner crop */
@media (min-width: 769px) {
  .header-left {
    width: 170px;
    height: 74px;
    overflow: hidden;
  }

  .left-logo {
    height: 190px;
    transform: translate(-56px, -38px);
  }
}

/* Uncrop Southern Miss logo (desktop) */
@media (min-width: 769px) {
  .header-left {
    width: auto;
    height: auto;
    overflow: visible;
    padding-left: 0.5rem;
  }

  .left-logo {
    transform: none;
    transform-origin: initial;
    max-width: 100%;
  }
}

/* Southern Miss logo: reduce by half */
@media (min-width: 769px) {
  .left-logo {
    height: 95px;
  }
}