/* ==========================================================================
PROFESSIONAL PORTFOLIO WEBSITE | OFFICIAL PORTFOLIO | AI & SOFTWARE ENGINEERING CSS STYLESHEET
========================================================================== */

/* ==========================================================================
1. GLOBAL VARIABLES & THEME CONTROL
========================================================================== */

:root {
  --body-bg: #02040a;
  --body-gradient: none;
  --body-text: #ffffff;
  --panel-bg: rgba(255, 255, 255, 0.04);
  --accent-cyan: #22d3ee;
  --accent-purple: #a855f7;
  --accent-pink: #ff00fb;
  --border-color: rgba(0, 209, 255, 0.25);
  --brand-text: #22d3ee;
  --brand-subtext: rgba(255, 255, 255, 0.6);
  --card-list-text: #ffffff;

  /* Floating navigation */

  --nav-bg: rgba(10, 12, 16, 0.7);
  --nav-text: rgba(255, 255, 255, 0.5);
  --nav-hover-bg: rgba(34, 211, 238, 0.15);
  --banner-img-bg: rgba(255, 255, 255, 0.95);

  /* Dark-mode subtitles */

  --card-sub-cyan: #22d3ee;
  --card-sub-purple: #a855f7;
  --card-sub-pink: #ff00fb;
}

body.light {
  --body-bg: #f3f4f6;
  --body-gradient: none;
  --body-text: #111827;
  --panel-bg: #ffffff;
  --border-color: rgba(0, 85, 204, 0.15);
  --brand-text: #0055cc;
  --brand-subtext: #4b5563;
  --card-list-text: #374151;

  /* Light-mode floating navigation */

  --nav-bg: rgba(255, 255, 255, 0.85);
  --nav-text: #4b5563;
  --nav-hover-bg: rgba(0, 85, 204, 0.1);
  --banner-img-bg: #ffffff;

  /* Light-mode subtitles */

  --card-sub-cyan: #007799;
  --card-sub-purple: #7e22ce;
  --card-sub-pink: #c026d3;
}

/* ==========================================================================
2. BASE DOCUMENT & ACCESSIBILITY
========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 50%;
  z-index: 10000;
  padding: 12px 18px;
  color: #071018;
  background: var(--accent-cyan);
  border-radius: 10px;
  font-weight: 800;
  text-decoration: none;
  transform: translate(-50%, -160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translate(-50%, 0);
}

.section-divider {
  height: 1px;
  margin: 40px 0;
  background: var(--border-color);
  border: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--body-gradient);
  background-attachment: fixed;
  background-color: var(--body-bg) !important;
  color: var(--body-text) !important;
  font-family: "Urbanist", "Segoe UI", Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0 0 60px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  transition:
    background 0.3s ease,
    color 0.3s ease;
  -webkit-tap-highlight-color: transparent;
}

/* ==========================================================================
3. SEMANTIC STRUCTURE WRAPPERS
========================================================================== */

.semantic-structure {
  display: contents;
}

/* Elements transferred to a dedicated page remain excluded from this layout. */
[hidden] {
  display: none !important;
}

/* ==========================================================================
4. PROJECT PAGES DROPDOWN
========================================================================== */

.site-pages-navigation {
  position: fixed;
  top: 24px;
  right: 28px;
  z-index: 1000;
}

.site-pages-menu {
  position: relative;
}

.site-pages-menu summary {
  min-width: 260px;
  min-height: 62px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(8, 15, 30, 0.98), rgba(17, 12, 35, 0.98)) padding-box,
    linear-gradient(135deg, #22d3ee 0%, #7c3aed 52%, #d946ef 100%) border-box;
  border: 1.5px solid transparent;
  border-radius: 999px;
  box-shadow:
    0 14px 38px rgba(0, 0, 0, 0.48),
    0 0 22px rgba(34, 211, 238, 0.18),
    0 0 32px rgba(168, 85, 247, 0.13);
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.site-pages-menu summary::-webkit-details-marker {
  display: none;
}

.site-pages-menu summary:hover {
  transform: none;
  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.55),
    0 0 28px rgba(34, 211, 238, 0.25),
    0 0 38px rgba(217, 70, 239, 0.18);
}

.site-pages-menu summary .fa-compass {
  color: #67e8f9;
  font-size: 18px;
  filter: drop-shadow(0 0 7px rgba(34, 211, 238, 0.55));
}

.site-pages-menu .menu-chevron {
  color: #c084fc;
  font-size: 12px;
  transition: transform 0.25s ease;
}

.site-pages-menu[open] .menu-chevron {
  transform: rotate(180deg);
}

.site-pages-list {
  position: absolute;
  top: calc(100% + 13px);
  right: 0;
  width: 340px;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 7px;
  background: rgba(5, 10, 22, 0.97);
  border: 1px solid rgba(103, 232, 249, 0.3);
  border-radius: 22px;
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.62),
    0 0 34px rgba(124, 58, 237, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.site-pages-list a {
  min-height: 47px;
  padding: 0 15px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: rgba(248, 250, 252, 0.84);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid transparent;
  border-radius: 13px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.site-pages-list a i {
  width: 20px;
  color: #67e8f9;
  text-align: center;
}

.site-pages-list a:hover {
  color: #ffffff;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.13), rgba(168, 85, 247, 0.12));
  border-color: rgba(103, 232, 249, 0.27);
  transform: translateX(-3px);
}

.site-pages-list a[aria-current="page"] {
  color: #ffffff;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.18), rgba(217, 70, 239, 0.14));
  border-color: rgba(192, 132, 252, 0.42);
}

/* ==========================================================================
5. PROJECT DROPDOWN FINAL APPEARANCE
========================================================================== */

.site-pages-navigation {
  position: absolute !important;
  top: 24px !important;
  right: 28px !important;
  left: auto !important;
  z-index: 5000 !important;
  width: auto !important;
  text-align: left !important;
}

.site-pages-menu {
  position: relative !important;
}

.site-pages-menu summary {
  width: auto !important;
  min-width: 260px !important;
  min-height: 62px !important;
  padding: 0 22px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 13px !important;
  color: #ffffff !important;
  background:
    linear-gradient(135deg, rgba(8, 15, 30, 0.98), rgba(17, 12, 35, 0.98)) padding-box,
    linear-gradient(135deg, #22d3ee 0%, #7c3aed 52%, #d946ef 100%) border-box !important;
  border: 1.5px solid transparent !important;
  border-radius: 999px !important;
  box-shadow:
    0 14px 38px rgba(0, 0, 0, 0.48),
    0 0 22px rgba(34, 211, 238, 0.18),
    0 0 32px rgba(168, 85, 247, 0.13) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  cursor: pointer !important;
  list-style: none !important;
  font-size: 15px !important;
  font-weight: 800 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  box-sizing: border-box !important;
  transition: box-shadow 0.25s ease !important;
  transform: none !important;
}

.site-pages-menu summary::-webkit-details-marker {
  display: none !important;
}

.site-pages-menu summary:hover {
  transform: none !important;
  box-shadow:
    0 18px 44px rgba(0, 0, 0, 0.55),
    0 0 28px rgba(34, 211, 238, 0.25),
    0 0 38px rgba(217, 70, 239, 0.18) !important;
}

.site-pages-menu summary .fa-compass {
  color: #67e8f9 !important;
  font-size: 18px !important;
  filter: drop-shadow(0 0 7px rgba(34, 211, 238, 0.55));
}

.site-pages-menu summary > span {
  flex: 0 1 auto !important;
}

.site-pages-menu .menu-chevron {
  color: #c084fc !important;
  font-size: 12px !important;
  transition: transform 0.25s ease !important;
}

.site-pages-menu[open] .menu-chevron {
  transform: rotate(180deg) !important;
}

.site-pages-list {
  position: absolute !important;
  top: calc(100% + 13px) !important;
  right: 0 !important;
  left: auto !important;
  width: 340px !important;
  max-height: calc(100vh - 100px) !important;
  padding: 12px !important;
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 7px !important;
  overflow-y: auto !important;
  background: rgba(5, 10, 22, 0.97) !important;
  border: 1px solid rgba(103, 232, 249, 0.3) !important;
  border-radius: 22px !important;
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.62),
    0 0 34px rgba(124, 58, 237, 0.12) !important;
  backdrop-filter: blur(18px) !important;
  -webkit-backdrop-filter: blur(18px) !important;
  box-sizing: border-box !important;
}

.site-pages-list a {
  min-height: 47px !important;
  padding: 0 15px !important;
  display: flex !important;
  align-items: center !important;
  gap: 13px !important;
  color: rgba(248, 250, 252, 0.84) !important;
  background: rgba(255, 255, 255, 0.025) !important;
  border: 1px solid transparent !important;
  border-left: 1px solid transparent !important;
  border-radius: 13px !important;
  text-decoration: none !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  box-sizing: border-box !important;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease !important;
}

.site-pages-list a i {
  width: 20px !important;
  color: #67e8f9 !important;
  text-align: center !important;
}

.site-pages-list a:hover,
.site-pages-list a:focus-visible {
  color: #ffffff !important;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.13), rgba(168, 85, 247, 0.12)) !important;
  border-color: rgba(103, 232, 249, 0.27) !important;
  transform: translateX(-3px) !important;
  outline: none !important;
}

.site-pages-list a[aria-current="page"] {
  color: #ffffff !important;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.18), rgba(217, 70, 239, 0.14)) !important;
  border-color: rgba(192, 132, 252, 0.42) !important;
}

/* ==========================================================================
6. FLOATING SECTION NAVIGATION
========================================================================== */

.side-navigation {
  position: fixed;
  top: 50%;
  left: 30px;
  transform: translateY(-50%);
  width: 65px;
  background: var(--nav-bg);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 100px;
  padding: 25px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
  z-index: 1000;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.side-navigation a {
  color: var(--nav-text);
  font-size: 20px;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
}

.side-navigation a:hover {
  color: var(--accent-cyan);
  background: var(--nav-hover-bg);
  transform: scale(1.1);
}

body.light .side-navigation a:hover {
  color: var(--brand-text);
}

.side-navigation a::after {
  content: attr(data-title);
  position: absolute;
  left: 75px;
  background: var(--panel-bg);
  color: var(--body-text);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-10px);
  transition: all 0.3s ease;
}

.side-navigation a:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.site-pages-navigation {
  position: fixed;
  top: 26px;
  right: 30px;
  z-index: 1100;
  text-align: left;
}

.site-pages-menu {
  position: relative;
}

.site-pages-menu summary {
  width: 220px;
  min-height: 58px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--nav-text);
  background: var(--nav-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  list-style: none;
  user-select: none;
  box-sizing: border-box;
}

.site-pages-menu summary::-webkit-details-marker {
  display: none;
}

.site-pages-menu summary > .fa-bars {
  color: var(--accent-cyan);
  font-size: 20px;
}

.site-pages-menu summary > span {
  flex: 1;
}

.site-pages-menu summary:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

.site-pages-menu .menu-chevron {
  font-size: 14px;
  transition: transform 0.2s ease;
}

.site-pages-menu[open] .menu-chevron {
  transform: rotate(180deg);
}

.site-pages-list {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: min(360px, calc(100vw - 24px));
  max-height: calc(100vh - 90px);
  padding: 10px;
  overflow-y: auto;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.site-pages-list a {
  min-height: 52px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--body-text);
  border-radius: 6px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
}

.site-pages-list a i {
  width: 22px;
  font-size: 17px;
  color: var(--accent-cyan);
  text-align: center;
}

.site-pages-list a:hover,
.site-pages-list a:focus-visible {
  color: var(--brand-text);
  background: var(--nav-hover-bg);
  outline: none;
}

.site-pages-list,
.side-navigation-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-pages-list li,
.side-navigation-list,
.side-navigation-list li {
  display: contents;
}

.site-pages-list a[aria-current="page"] {
  color: var(--brand-text);
  background: rgba(34, 211, 238, 0.12);
  border-left: 3px solid var(--accent-cyan);
}

/* ==========================================================================
7. PAGE WRAPPER & MAIN CONTENT
========================================================================== */

.page-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1150px;
  padding: 60px 20px;
  box-sizing: border-box;
}

/* Semantic sections keep editor breadcrumbs aligned with page navigation. */
.portfolio-content-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

[id^="section-"] {
  scroll-margin-top: 90px;
}

/* ==========================================================================
8. HEADER & HERO
========================================================================== */

#site-header {
  width: 100%;
}

.top-uni-logo {
  width: 190px;
  height: auto;
  margin-top: 25px;
  margin-bottom: 25px;
  object-fit: contain;
  filter: drop-shadow(0 0 35px rgba(34, 211, 238, 0.85));
  transition: all 0.4s ease;
}

body.light .top-uni-logo {
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.15));
}

h1 {
  font-size: clamp(38px, 7vw, 85px);
  margin: 20px 0 10px 0;
  font-weight: 900;
  letter-spacing: 2px;
  text-shadow: 0 0 30px rgba(0, 209, 255, 0.4);
  text-transform: uppercase;
}

body.light h1 {
  text-shadow: none;
}

.professional-titles {
  color: var(--accent-cyan);
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 700;
  margin-bottom: 15px;
  text-transform: uppercase;
  line-height: 1.5;
}

body.light .professional-titles {
  color: var(--brand-text);
}

.subtitle {
  opacity: 0.8;
  font-size: 19px;
  margin-bottom: 40px;
  font-weight: 400;
}

/* ==========================================================================
9. ORGANIZATIONS & TECHNOLOGY PARTNERS BANNERS
========================================================================== */

.technology-partner-name {
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.technology-partners-banner {
  margin-top: 40px;
}

.moving-banner {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  padding: 15px 0;
  overflow: hidden;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
}

body.light .moving-banner {
  background: rgba(0, 0, 0, 0.02);
}

.marquee-content {
  display: flex;
  gap: 60px;
  animation: scroll 22s linear infinite !important;
  width: max-content;
  align-items: center;
}

.marquee-content img {
  height: 60px;
  width: auto;
  object-fit: contain;
  padding: 10px;
  background: var(--banner-img-bg);
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

@keyframes scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ==========================================================================
10. THEME SWITCHER
========================================================================== */

.theme-switch-container {
  width: 100%;
  display: flex;
  justify-content: center;
  margin: 15px 0 35px 0;
}

.modern-theme-btn {
  padding: 12px 30px !important;
  font-size: 17px !important;
  font-weight: 700 !important;
  background: rgba(255, 255, 255, 0.05) !important;
  backdrop-filter: blur(10px);
  border: 2px solid var(--accent-cyan) !important;
  border-radius: 50px !important;
  color: var(--body-text) !important;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all 0.3s ease;
}

body.light .modern-theme-btn {
  background: #ffffff !important;
  color: #111111 !important;
  border-color: var(--brand-text) !important;
}

.modern-theme-btn:hover {
  transform: scale(1.05) translateY(-2px);
  background: var(--accent-cyan) !important;
  color: #020617 !important;
}

/* ==========================================================================
11. SHARED PANELS & CARDS
========================================================================== */

.glass-panel,
.project-card {
  background: var(--panel-bg) !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border-color) !important;
  border-radius: 30px;
  padding: clamp(25px, 5%, 45px);
  margin: 25px 0;
  width: 100%;
  text-align: left;
  box-sizing: border-box;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) !important;
  cursor: pointer;
  color: var(--body-text) !important;
}

.glass-panel:hover,
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 209, 255, 0.15);
  border-color: var(--accent-cyan) !important;
}

body.light .glass-panel:hover,
body.light .project-card:hover {
  box-shadow: 0 20px 40px rgba(0, 85, 204, 0.1);
  border-color: var(--brand-text) !important;
}

/* ==========================================================================
12. RESEARCH & PUBLICATIONS
========================================================================== */

.mega-research-container {
  width: 100% !important;
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin: 60px 0 !important;
  perspective: 1000px;
}

.portfolio-links-title {
  width: 100%;
  margin: 0;
  text-align: left;
}

.research-publications-panel {
  width: 100%;
  margin: 34px 0 42px;
  padding: 38px;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.24);
}

.education-panel {
  margin: 34px 0 42px;
  padding: 38px;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.24);
}

.education-panel .education-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 0 !important;
}

.education-panel .education-section-header h2 {
  margin: 0;
  color: var(--brand-text);
  font-size: xx-large;
  font-weight: 800;
  letter-spacing: 1px;
}

.education-panel .achievment-btn .fa-arrow-right {
  margin-left: 8px;
}

.portfolio-section-panel {
  margin: 34px 0 42px;
  padding: 38px;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.24);
}

.portfolio-section-panel > h2 {
  margin: 0 0 28px !important;
}

.research-publications-panel,
.education-panel,
.portfolio-section-panel {
  background: var(--panel-bg) !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--border-color) !important;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) !important;
  cursor: pointer;
}

.research-publications-panel:hover,
.education-panel:hover,
.portfolio-section-panel:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 209, 255, 0.15);
  border-color: var(--accent-cyan) !important;
}

/* Match the inner Skills and Architecture cards to Leadership's fuchsia hover. */
#section-skills > .glass-panel:hover,
#section-projects .glass-panel:hover {
  transform: translateY(-6px);
  border-color: var(--accent-pink) !important;
  box-shadow:
    0 20px 40px rgba(255, 0, 251, 0.16),
    0 0 24px rgba(217, 70, 239, 0.12) !important;
}

/* Fuchsia hover for the lower Education cards; top Academic Degrees stay unchanged. */
.education-horizontal-grid > .edu-badge-capsule:hover {
  transform: translateY(-6px);
  border-color: var(--accent-pink) !important;
  box-shadow:
    0 20px 40px rgba(255, 0, 251, 0.16),
    0 0 24px rgba(217, 70, 239, 0.12) !important;
}

/* Unified inner-card surface based on the Technical Skills cards. */
.portfolio-description-card,
.education-panel .edu-badge-capsule,
#section-executive .metrics-grid li,
#section-mercor > .glass-panel,
#section-skills > .glass-panel,
#section-projects .glass-panel {
  background: #202126 !important;
}

body.light .portfolio-description-card,
body.light .education-panel .edu-badge-capsule,
body.light #section-executive .metrics-grid li,
body.light #section-mercor > .glass-panel,
body.light #section-skills > .glass-panel,
body.light #section-projects .glass-panel {
  background: #ffffff !important;
}

/* Remove separators left behind by sections transferred to home.html. */
.theme-switch-container + hr {
  display: none;
}

.portfolio-description-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 60px;
  margin-top: 28px;
}

.portfolio-description-card {
  min-height: 430px;
  padding: 28px 30px;
  box-sizing: border-box;
  background: linear-gradient(145deg, rgba(14, 19, 31, 0.94), rgba(9, 13, 23, 0.94));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;
}

.projects-description-card {
  border-top: 2px solid #00d1ff;
}

.publications-description-card {
  border-top: 2px solid #d946ef;
}

.projects-description-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.46);
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.38),
    0 0 28px rgba(34, 211, 238, 0.14);
}

.publications-description-card:hover {
  transform: translateY(-6px);
  border-color: rgba(217, 70, 239, 0.44);
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.38),
    0 0 28px rgba(217, 70, 239, 0.13);
}

.portfolio-description-card h3 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 27px;
  font-weight: 800;
}

.portfolio-description-card p {
  margin: 0;
  color: var(--body-text);
  font-size: 16px;
  line-height: 1.65;
}

.portfolio-description-card > .mega-research-btn {
  margin-top: auto;
  box-sizing: border-box;
}

.mega-research-btn {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 15px !important;
  width: 100% !important;
  min-height: 140px !important;
  padding: 30px 20px !important;
  border-radius: 35px !important;
  background-size: 300% 300% !important;
  animation: mega-neon-glow 4s ease infinite !important;
  box-shadow:
    0 15px 40px rgba(112, 0, 255, 0.3),
    0 0 30px rgba(0, 209, 255, 0.2) !important;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.btn-projects {
  background: #08111f !important;
  animation: none !important;
}

.btn-projects::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  bottom: 0;
  left: -100%;
  width: 200%;
  background: linear-gradient(90deg, #ff334f 0%, #ff7a59 22%, #d4af37 46%, #7e22ce 76%, #ff334f 100%);
  animation: projects-gradient-slide 4.5s ease-in-out infinite alternate;
  will-change: transform;
}

.btn-projects h3,
.btn-projects span {
  position: relative;
  z-index: 2;
}

.btn-publications {
  background: linear-gradient(
    110deg,
    rgba(37, 211, 102, 0.96) 0%,
    rgba(37, 211, 102, 0.96) 58%,
    rgba(24, 169, 111, 0.95) 70%,
    rgba(10, 102, 194, 0.94) 100%
  ) !important;
  border: none !important;
  animation: none !important;
}

.btn-publications::after {
  display: none;
}

.btn-publications h3,
.btn-publications span {
  position: relative;
  z-index: 2;
}

.mega-research-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-25deg);
  transition: none;
  z-index: 3;
}

.mega-research-btn:hover::before {
  animation: reflection-shimmer 1.4s infinite;
}

.mega-research-btn:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow:
    0 25px 50px rgba(112, 0, 255, 0.5),
    0 0 50px rgba(255, 0, 251, 0.4) !important;
}

.btn-projects:hover,
.btn-projects:focus-visible {
  box-shadow:
    0 25px 50px rgba(126, 34, 206, 0.3),
    0 0 34px rgba(0, 209, 255, 0.25),
    0 0 22px rgba(212, 175, 55, 0.18) !important;
}

.btn-publications:hover,
.btn-publications:focus-visible {
  box-shadow:
    0 25px 50px rgba(10, 102, 194, 0.3),
    0 0 38px rgba(37, 211, 102, 0.25) !important;
}

.mega-research-btn h3 {
  margin: 0 !important;
  font-size: clamp(20px, 2.5vw, 28px) !important;
  font-weight: 900 !important;
  color: white !important;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.mega-research-btn span {
  font-size: 15px !important;
  color: rgba(255, 255, 255, 0.95) !important;
  letter-spacing: 4px;
  font-weight: 700;
  text-transform: uppercase;
  animation: text-pulse 2s ease-in-out infinite;
}

.portfolio-link-card {
  min-height: 310px;
  display: flex !important;
  flex-direction: column;
  align-items: flex-start !important;
  justify-content: flex-start !important;
  gap: 16px;
  text-align: left !important;
  cursor: default;
}

.portfolio-link-card.btn-projects,
.portfolio-link-card.btn-publications {
  background: linear-gradient(145deg, rgba(14, 19, 31, 0.96), rgba(10, 13, 23, 0.96)) !important;
  background-size: auto !important;
  animation: none !important;
  border: 1px solid rgba(103, 232, 249, 0.28) !important;
  box-shadow:
    0 18px 42px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.04) !important;
}

.portfolio-link-card.btn-publications {
  border-color: rgba(217, 70, 239, 0.3) !important;
}

.portfolio-link-card::before {
  display: none;
}

.portfolio-link-card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 22px 48px rgba(0, 0, 0, 0.4),
    0 0 24px rgba(34, 211, 238, 0.1) !important;
}

.portfolio-link-card.btn-publications:hover {
  box-shadow:
    0 22px 48px rgba(0, 0, 0, 0.4),
    0 0 24px rgba(217, 70, 239, 0.11) !important;
}

.portfolio-link-card p {
  max-width: 580px;
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.65;
}

.portfolio-card-action {
  width: 100%;
  min-height: 68px;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: auto;
  padding: 18px 28px;
  color: #fff;
  background: rgba(4, 10, 22, 0.38);
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 20px;
  box-shadow:
    0 16px 34px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition:
    transform 0.25s ease,
    background 0.25s ease,
    box-shadow 0.25s ease;
}

.btn-projects .portfolio-card-action {
  background: linear-gradient(135deg, #00d1ff, #2563eb);
  border-color: transparent;
  box-shadow:
    0 18px 38px rgba(0, 119, 255, 0.32),
    0 0 24px rgba(0, 209, 255, 0.18);
}

.btn-publications .portfolio-card-action {
  background: linear-gradient(135deg, #d946ef, #7c3aed);
  border-color: transparent;
  box-shadow:
    0 18px 38px rgba(124, 58, 237, 0.34),
    0 0 24px rgba(217, 70, 239, 0.2);
}

.portfolio-card-action:hover,
.portfolio-card-action:focus-visible {
  color: #fff;
  background: rgba(4, 10, 22, 0.62);
  box-shadow:
    0 20px 42px rgba(0, 0, 0, 0.38),
    0 0 28px rgba(255, 255, 255, 0.14);
  transform: translateY(-3px) scale(1.01);
  outline: none;
}

.btn-projects .portfolio-card-action:hover,
.btn-projects .portfolio-card-action:focus-visible {
  background: linear-gradient(135deg, #22d3ee, #1d4ed8);
}

.btn-publications .portfolio-card-action:hover,
.btn-publications .portfolio-card-action:focus-visible {
  background: linear-gradient(135deg, #f0abfc, #6d28d9);
}

.portfolio-card-action i {
  font-size: 12px;
  transition: transform 0.25s ease;
}

.portfolio-card-action:hover i {
  transform: translateX(3px);
}

@keyframes mega-neon-glow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes projects-gradient-slide {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(50%);
  }
}

@keyframes reflection-shimmer {
  0% {
    left: -150%;
  }
  100% {
    left: 150%;
  }
}

@keyframes text-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.9;
  }
  50% {
    transform: scale(1.03);
    opacity: 1;
  }
}

/* ==========================================================================
13. EDUCATION, SKILLS & BRANDING GRIDS
========================================================================== */

.logo-group-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.skills-section-title {
  width: 100%;
  margin-top: 20px;
  color: var(--brand-text);
  font-size: xx-large;
  font-weight: 800;
  text-align: left;
  letter-spacing: 1px;
}

.skills-card-first {
  margin-top: 20px;
}

.skills-card-spaced {
  margin-top: 25px;
}

.skills-card-header-compact {
  margin-bottom: 0;
}

.skills-category-icon {
  margin-right: 15px;
  color: var(--brand-text);
  font-size: 42px;
}

.skills-category-icon-safety {
  color: var(--accent-pink);
}

.icon-wrapper {
  width: 95px !important;
  height: 95px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: #ffffff !important;
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 18px;
  box-sizing: border-box;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 5px 14px rgba(0, 0, 0, 0.06);
  transition:
    transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    box-shadow 0.2s ease,
    z-index 0.2s ease !important;
  overflow: hidden;
}

.icon-wrapper img {
  width: 100% !important;
  height: 100% !important;
  object-fit: fill !important;
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
}

.icon-wrapper.wide-pacs-card {
  width: 160px !important;
  height: 95px !important;
}

.icon-wrapper:hover,
.icon-wrapper:active {
  transform: scale(1.45) translateY(-8px) !important;
  z-index: 99 !important;
  box-shadow: 0 20px 40px rgba(0, 209, 255, 0.55) !important;
}

body.light .icon-wrapper:hover,
body.light .icon-wrapper:active {
  box-shadow: 0 20px 40px rgba(0, 85, 204, 0.4) !important;
}

.icon-wrapper.mega-wide-card {
  width: 155px !important;
  height: 95px !important;
}

.education-horizontal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  width: 100%;
  margin-top: 25px;
}

.edu-badge-capsule {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 22px;
  transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

body.light .edu-badge-capsule {
  background: rgba(0, 0, 0, 0.01);
}

.edu-badge-capsule:hover {
  transform: scale(1.04) translateX(5px);
  background: rgba(34, 211, 238, 0.05);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 25px rgba(0, 209, 255, 0.1);
}

.edu-details-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.edu-details-text strong {
  font-size: 24px;
  color: var(--body-text);
  line-height: 1.3;
}

.edu-details-text span {
  font-size: 18px;
  color: var(--brand-subtext);
  margin-top: 4px;
  font-weight: 500;
}

.sub-cyan {
  color: var(--card-sub-cyan) !important;
  font-size: 28px !important;
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.sub-purple {
  color: var(--card-sub-purple) !important;
  font-size: 28px !important;
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.sub-pink {
  color: var(--card-sub-pink) !important;
  font-size: 28px !important;
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.5px;
}

/* ==========================================================================
14. EDUCATION HIGHLIGHTS & CERTIFICATIONS
========================================================================== */

.academic-degrees-frame {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  padding: 16px;
  border: 2px solid var(--accent-purple);
  border-radius: 28px;
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.22);
}

/* Certifications button */

.achievment-btn {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple)) !important;

  color: #ffffff !important;
  border: none !important;
  padding: 13px 24px !important;
  border-radius: 14px !important;
  font-size: 15px !important;
  font-weight: 800 !important;
  letter-spacing: 0.3px;
  box-shadow: 0 8px 24px rgba(168, 85, 247, 0.3);
}

.achievment-btn:hover {
  transform: translateY(-3px);
  box-shadow:
    0 12px 30px rgba(34, 211, 238, 0.28),
    0 12px 30px rgba(168, 85, 247, 0.32);
}

/* ==========================================================================
15. EXECUTIVE LEADERSHIP & CONTENT LISTS
========================================================================== */

.metrics-grid {
  list-style: none;
  padding: 0;
  margin: 25px 0 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  width: 100%;
}

.metrics-grid li {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(34, 211, 238, 0.15);
  padding: 16px 20px;
  border-radius: 16px;
  font-size: 22px;
  line-height: 1.4;
  color: var(--card-list-text);
  transition: all 0.3s ease;
  box-sizing: border-box;
}

body.light .metrics-grid li {
  background: rgba(0, 0, 0, 0.01);
  border-color: rgba(0, 85, 204, 0.1);
}

.metrics-grid li:hover {
  transform: translateY(-3px);
  border-color: var(--accent-pink);
  background: rgba(255, 0, 251, 0.03);
  box-shadow: 0 8px 20px rgba(255, 0, 251, 0.1);
}

.mercor-grid {
  list-style: none;
  padding: 0;
  margin: 25px 0 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  width: 100%;
}

.mercor-grid li {
  background: rgba(168, 85, 247, 0.03);
  border: 1px solid rgba(168, 85, 247, 0.2);
  padding: 18px 20px;
  border-radius: 16px;
  font-size: 22px;
  line-height: 1.4;
  color: var(--card-list-text);
  transition: all 0.3s ease;
  box-sizing: border-box;
  position: relative;
}

body.light .mercor-grid li {
  background: rgba(126, 34, 206, 0.02);
  border-color: rgba(126, 34, 206, 0.15);
}

.mercor-grid li:hover {
  transform: translateY(-4px);
  border-color: var(--accent-pink);
  background: rgba(255, 0, 251, 0.04);
  box-shadow: 0 8px 25px rgba(255, 0, 251, 0.15);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  width: 100%;
  margin-top: 30px;
}

.delivery-section-title {
  width: 100%;
  margin-top: 20px;
  color: var(--accent-cyan);
  font-size: xx-large;
  font-weight: 800;
  text-align: left;
  letter-spacing: 1px;
}

.delivery-projects-grid {
  margin-top: 20px;
}

.delivery-card-title {
  margin-bottom: 15px;
  font-size: 24px !important;
}

.card-icon-header {
  display: flex;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
  align-items: center;
}

.executive-panel {
  margin-top: 20px;
}

.executive-section-title {
  width: 100%;
  margin: 0 0 28px;
  color: var(--brand-text);
  font-size: xx-large;
  font-weight: 800;
  text-align: left;
  letter-spacing: 1px;
}

.executive-card-header {
  justify-content: space-between;
  width: 100%;
  gap: 15px;
}

.executive-logo-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.executive-report-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid var(--accent-cyan);
  border-radius: 14px;
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.2);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
}

.executive-report-link:hover,
.executive-report-link:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 211, 238, 0.28);
  outline: none;
}

.executive-metrics-title {
  margin-top: 15px;
  margin-bottom: 20px;
}

.card-list {
  list-style: none;
  padding: 0;
  margin: 25px 0 0 0;
  text-align: left;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  width: 100%;
  box-sizing: border-box;
}

.card-list li {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 16px 20px 16px 32px;
  border-radius: 16px;
  font-size: 22px;
  line-height: 1.4;
  color: var(--card-list-text);
  transition: all 0.3s ease;
  box-sizing: border-box;
  position: relative;
}

body.light .card-list li {
  background: rgba(0, 0, 0, 0.01);
}

.card-list li:hover {
  transform: translateY(-3px);
  border-color: var(--accent-pink);
  background: rgba(255, 0, 251, 0.03);
  box-shadow: 0 8px 20px rgba(255, 0, 251, 0.1);
}

.card-list li::before {
  content: "▹";
  position: absolute;
  left: 12px;
  top: 16px;
  color: var(--accent-cyan);
  font-weight: bold;
}

body.light .card-list li::before {
  color: var(--brand-text);
}

/* ==========================================================================
16. GLOBAL AI VETTING & RECOGNITION
========================================================================== */

.mercor-premium-panel {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.07) 0%, rgba(255, 0, 251, 0.03) 100%) !important;
  border: 2px solid rgba(168, 85, 247, 0.35) !important;
  border-radius: 30px;
  box-shadow: 0 10px 30px rgba(168, 85, 247, 0.05);
}

.mercor-section-title {
  width: 100%;
  margin-top: 20px;
  color: var(--accent-purple);
  font-size: xx-large;
  font-weight: 800;
  text-align: left;
  letter-spacing: 1px;
}

.mercor-panel {
  margin-top: 20px;
}

.mercor-card-header {
  gap: 20px;
}

.mercor-logo-card {
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
}

.mercor-recognition-title {
  margin: 0;
  font-size: 28px !important;
}

.mercor-premium-panel:hover {
  border-color: var(--accent-pink) !important;
  box-shadow: 0 20px 45px rgba(255, 0, 251, 0.2) !important;
}

body.light .mercor-premium-panel {
  background: linear-gradient(135deg, rgba(126, 34, 206, 0.04) 0%, rgba(192, 38, 211, 0.02) 100%) !important;
  border-color: rgba(126, 34, 206, 0.2) !important;
}

.mercor-tag-group {
  display: flex;
  flex-wrap: wrap;
  margin-top: 15px;
  padding: 0;
  gap: 12px;
  list-style: none;
}

.mercor-tag {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 50px;
  background: rgba(255, 0, 251, 0.12);
  border: 1px solid rgba(255, 0, 251, 0.3);
  color: #ff66ff;
}

.mercor-tag.purple-tag {
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

/* ==========================================================================
17. BUTTONS, TAGS & CUSTOM COMPONENTS
========================================================================== */

.achievment-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: transparent;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.4s ease;
  margin-left: 15px;
  font-size: 14px;
}

.achievment-btn:hover {
  background: var(--accent-cyan);
  color: var(--body-bg);
  transform: scale(1.1);
  box-shadow: 0 0 15px var(--accent-cyan);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.tech-tags span {
  font-size: 10px;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.launch-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 15px;
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  color: #020617;
  text-decoration: none;
  font-weight: 800;
  font-size: 11px;
  border-radius: 12px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  width: fit-content;
}

.launch-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(34, 211, 238, 0.4);
}

/* ==========================================================================
18. FINAL VISUAL POLISH
========================================================================== */

.page-wrapper {
  max-width: 1500px;
  margin: auto;
}

.glass-panel {
  border-radius: 30px !important;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.45) !important;
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease;
}

.glass-panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 45px 120px rgba(0, 0, 0, 0.6) !important;
}

.project-card {
  padding: 42px !important;
}

h1 {
  font-size: clamp(3rem, 5vw, 5rem);
}

h2 {
  letter-spacing: 0.3px;
}

.education-horizontal-grid,
.projects-grid {
  gap: 28px;
}

.section-title {
  font-size: 42px !important;
  line-height: 1.15;
  margin: 0 0 30px;
  font-weight: 800;
  letter-spacing: 1px;
}

/* ==========================================================================
19. FOOTER
========================================================================== */

#site-footer {
  width: 100%;
  margin-top: 60px;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-copyright {
  opacity: 0.6;
}

.footer-source-link {
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition:
    color 0.25s ease,
    text-shadow 0.25s ease;
}

.footer-source-link:hover,
.footer-source-link:focus-visible {
  color: #22d3ee;
  text-shadow:
    0 0 8px rgba(34, 211, 238, 0.8),
    0 0 18px rgba(34, 211, 238, 0.55);
  outline: none;
}

/* ==========================================================================
20. RESPONSIVE DESIGN & MEDIA QUERIES
========================================================================== */

@media (max-width: 768px) {
  .research-publications-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .education-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .portfolio-section-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .portfolio-description-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .portfolio-description-card {
    min-height: 0;
    padding: 22px;
  }

  .portfolio-description-card h3 {
    font-size: 22px;
  }
}

@media (max-width: 1200px) {
  body {
    padding-left: 20px;
    padding-right: 20px;
  }

  @media (max-width: 768px) {
    .site-pages-navigation {
      top: 14px;
      right: 14px;
    }

    .site-pages-menu summary {
      min-width: 0;
      min-height: 52px;
      padding: 0 17px;
      font-size: 12px;
    }

    .site-pages-list {
      width: min(340px, calc(100vw - 28px));
      max-height: calc(100vh - 84px);
      overflow-y: auto;
    }
  }

  .side-navigation {
    display: flex;
    position: sticky;
    top: 10px;
    left: auto;
    transform: none;
    width: calc(100% - 30px);
    max-width: 900px;
    height: auto;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px;
    margin: 10px auto;
    border-radius: 22px;
  }

  .side-navigation a {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .side-navigation a::after {
    display: none;
  }
}

@media (max-width: 1200px) {
  .education-horizontal-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .projects-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
}

@media (max-width: 600px) {
  .page-wrapper {
    padding: 20px 20px !important;
  }

  h1 {
    font-size: 24px !important;
    letter-spacing: 0.5px !important;
    margin: 10px 0 6px 0 !important;
  }
  .professional-titles {
    font-size: 13px !important;
    line-height: 1.4 !important;
    font-weight: 600 !important;
  }
  .subtitle {
    font-size: 12px !important;
    margin-bottom: 20px !important;
    opacity: 0.7;
  }

  .sub-cyan,
  .sub-purple,
  .sub-pink {
    font-size: 18px !important;
  }

  .logo-group-grid {
    justify-content: center !important;
    gap: 6px !important;
  }
  .icon-wrapper {
    width: 48px !important;
    height: 48px !important;
    border-radius: 8px !important;
  }
  .icon-wrapper.wide-pacs-card {
    width: 80px !important;
    height: 48px !important;
  }
  .icon-wrapper.mega-wide-card {
    width: 80px !important;
    height: 48px !important;
  }

  .icon-wrapper:hover,
  .icon-wrapper:active {
    transform: scale(1.06) translateY(-1px) !important;
    box-shadow: 0 6px 15px rgba(0, 209, 255, 0.25) !important;
  }

  .card-list,
  .metrics-grid,
  .mercor-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
    margin-top: 12px !important;
  }

  .card-list li,
  .metrics-grid li,
  .mercor-grid li {
    font-size: 13px !important;
    padding: 10px 12px 10px 24px !important;
    border-radius: 10px !important;
  }

  .card-list li::before {
    left: 8px !important;
    top: 10px !important;
    font-size: 11px !important;
  }

  .edu-badge-capsule {
    flex-direction: row !important;
    text-align: left !important;
    padding: 10px !important;
    gap: 10px !important;
    border-radius: 12px !important;
  }
  .edu-details-text strong {
    font-size: 14px !important;
  }
  .edu-details-text span {
    font-size: 11px !important;
  }

  .card-icon-header {
    justify-content: center !important;
    text-align: center !important;
    gap: 10px !important;
  }
  .top-uni-logo {
    width: 100px !important;
    margin-top: 8px !important;
    margin-bottom: 8px !important;
  }

  .mega-research-container {
    margin: 20px 0 !important;
    grid-template-columns: 1fr !important;
    gap: 35px !important;
  }
  .mega-research-btn {
    padding: 12px 14px !important;
    min-height: auto !important;
    border-radius: 12px !important;
    width: 100% !important;
    box-sizing: border-box;
  }
  .mega-research-btn h3 {
    font-size: 14px !important;
    line-height: 1.3 !important;
    letter-spacing: 0px !important;
  }
  .mega-research-btn span {
    font-size: 10px !important;
    margin-top: 4px !important;
    letter-spacing: 0.5px !important;
  }

  .brand-svg {
    width: 28px !important;
    height: 28px !important;
  }
  .brand-info a {
    font-size: 15px !important;
  }
  .brand-info span {
    font-size: 10px !important;
  }

  .moving-banner {
    padding: 8px 0 !important;
    background: rgba(255, 255, 255, 0.02) !important;
  }

  .marquee-content {
    gap: 30px !important;
  }

  .marquee-content img {
    height: 18px !important;
    width: auto !important;
    opacity: 0.8;
  }
}

@media (max-width: 900px) {
  .academic-degrees-frame {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .education-section-header {
    width: 100%;
    flex-direction: column;
    align-items: flex-start !important;
    gap: 18px;
  }
}

@media (min-width: 901px) and (max-width: 1200px) {
  .mega-research-container {
    width: 94% !important;
    max-width: 1120px;
    grid-template-columns: 47% 47% !important;
    column-gap: 6% !important;
    row-gap: 0 !important;
    margin: 45px auto !important;
  }

  .mega-research-btn {
    width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
}

@media (max-width: 600px) {
  body {
    padding-left: 0;
    padding-right: 0;
  }

  .site-pages-navigation {
    top: 10px;
    right: 10px;
  }

  .site-pages-menu summary {
    width: 168px;
    min-height: 42px;
    padding: 0 12px;
    gap: 9px;
    font-size: 14px;
  }

  .site-pages-menu summary > .fa-bars {
    font-size: 16px;
  }

  .site-pages-list a {
    min-height: 44px;
    padding: 8px 10px;
    gap: 10px;
    font-size: 14px;
  }

  .site-pages-list {
    max-height: calc(100vh - 70px);
  }

  .page-wrapper {
    width: 100%;
    padding: 64px 12px 18px !important;
  }

  .project-card {
    padding: 18px !important;
  }

  .section-title {
    font-size: 29px !important;
    line-height: 1.2;
    margin-bottom: 18px;
  }

  .event-card {
    width: 100%;
    min-width: 0;
    padding: 18px;
    text-align: left;
  }

  .event-card h3 {
    margin-bottom: 12px;
    font-size: 21px;
    line-height: 1.3;
  }

  .event-card p {
    font-size: 15px;
    line-height: 1.6;
  }

  .mega-research-container {
    width: 100% !important;
    gap: 16px !important;
    margin: 24px auto !important;
  }
}

@media (max-width: 900px) {
  .site-pages-navigation {
    top: 14px !important;
    right: 14px !important;
  }

  .site-pages-menu summary {
    min-width: 0 !important;
    min-height: 52px !important;
    padding: 0 17px !important;
    font-size: 12px !important;
  }

  .site-pages-list {
    width: min(340px, calc(100vw - 28px)) !important;
    max-height: calc(100vh - 84px) !important;
  }
}

@media (max-width: 1200px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden !important;
  }

  header h1,
  .page-wrapper > header h1 {
    max-width: 100%;
    font-size: clamp(2rem, 9vw, 3rem) !important;
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  .professional-titles {
    max-width: 100%;
    font-size: clamp(1rem, 4.8vw, 1.35rem) !important;
    line-height: 1.45;
  }

  .marquee-content {
    max-width: 100vw;
  }

  .side-navigation {
    position: fixed !important;
    top: auto !important;
    right: 12px !important;
    bottom: 10px !important;
    left: 12px !important;
    width: auto !important;
    height: 56px !important;
    padding: 7px 10px !important;
    flex-flow: row nowrap !important;
    justify-content: flex-start !important;
    gap: 10px !important;
    overflow-x: auto !important;
    transform: none !important;
    border-radius: 18px !important;
  }

  .page-wrapper {
    max-width: 100%;
  }
}

@media (min-width: 901px) and (max-width: 1500px) {
  body:not(.home-page) .side-navigation {
    position: fixed !important;
    top: 16px !important;
    right: auto !important;
    bottom: auto !important;
    left: 20px !important;
    width: auto !important;
    max-width: calc(100vw - 390px) !important;
    height: 58px !important;
    padding: 7px 12px !important;
    flex-flow: row nowrap !important;
    justify-content: flex-start !important;
    gap: 9px !important;
    overflow-x: auto !important;
    transform: none !important;
    border-radius: 18px !important;
  }

  body:not(.home-page) .side-navigation a {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
  }

  body:not(.home-page) .page-wrapper {
    padding-top: 92px !important;
  }
}

@media (max-width: 900px) {
  body:not(.home-page) .side-navigation {
    position: fixed !important;
    top: 76px !important;
    right: 12px !important;
    bottom: auto !important;
    left: 12px !important;
    width: auto !important;
    height: 56px !important;
    padding: 7px 10px !important;
    flex-flow: row nowrap !important;
    justify-content: flex-start !important;
    gap: 10px !important;
    overflow-x: auto !important;
    transform: none !important;
    border-radius: 18px !important;
  }

  body:not(.home-page) .page-wrapper {
    padding-top: 150px !important;
  }
}


/* ======================================================================
FINAL MOBILE TYPOGRAPHY REFINEMENT — PROFESSIONAL SECTIONS
====================================================================== */
@media (max-width: 700px) {
  .executive-section-title,
  .mercor-section-title,
  .skills-section-title,
  .delivery-section-title,
  .portfolio-links-title {
    width: 100% !important;
    margin: 0 0 20px !important;
    font-size: clamp(1.55rem, 7.2vw, 2rem) !important;
    line-height: 1.12 !important;
    letter-spacing: .2px !important;
    overflow-wrap: normal !important;
    word-break: normal !important;
    hyphens: none !important;
  }
  .professional-titles {
    font-size: clamp(1rem, 4.5vw, 1.25rem) !important;
    line-height: 1.35 !important;
  }
}

/* ======================================================================
FINAL PORTFOLIO MOBILE HERO TYPOGRAPHY
====================================================================== */
@media (max-width: 600px) {
  #site-header h1 {
    width: calc(100% - 24px) !important;
    margin: 16px auto 10px !important;
    font-size: clamp(1.78rem, 8.1vw, 2.2rem) !important;
    line-height: 1.08 !important;
    letter-spacing: .35px !important;
    white-space: normal !important;
    overflow-wrap: normal !important;
  }
  #site-header .professional-titles {
    width: calc(100% - 28px) !important;
    margin-left: auto !important;
    margin-right: auto !important;
    font-size: clamp(.92rem, 4.15vw, 1.08rem) !important;
    line-height: 1.42 !important;
    letter-spacing: 0 !important;
  }
  #site-header .subtitle {
    width: calc(100% - 30px) !important;
    margin-left: auto !important;
    margin-right: auto !important;
    font-size: .82rem !important;
    line-height: 1.3 !important;
  }
}

/* ======================================================================
SAFE FINAL OVERRIDE — keep real logos visible inside mobile marquees
====================================================================== */
@media (max-width: 600px) {
  .moving-banner {
    padding: 10px 0 !important;
  }
  .marquee-content {
    gap: 28px !important;
  }
  .marquee-content img {
    display: block !important;
    height: 42px !important;
    width: auto !important;
    max-width: 120px !important;
    padding: 5px 8px !important;
    object-fit: contain !important;
    opacity: 1 !important;
    border-radius: 9px !important;
  }
  .technology-partner-name {
    font-size: 12px !important;
    white-space: nowrap !important;
  }
}

/* ==========================================================================
TOUCH DEVICES
Keep borders visible when hover is unavailable.
========================================================================== */

@media (hover: none) and (pointer: coarse) {

  .glass-panel,
  .project-card,
  .module-card,
  .feature-card,
  .article-card,
  .cert-card,
  .comparison-col,
  .phase-card,
  .visual,
  .feature-image,
  .page-return,
  .project-return,
  .back-btn,
  .back-link,
  .back-home-btn,
  .return-btn,
  .theme-btn,
  .nav-links a {
    border-color: rgba(255,255,255,.18) !important;
  }

}