/* ==========================================================================
   RIVAL vCard Theme Stylesheet
   Modernized responsive styling inspired by RIVAL vCard template
   ========================================================================== */

:root {
  --primary: #3F72AF;
  --primary-hover: #DBE2EF;
  --primary-light: rgb(63, 114, 175, 0.15);
  --dark-bg: #1c1c1c;
  --dark-surface: #242424;
  --dark-card: #2a2a2a;
  --dark-border: #383838;
  --body-bg: #f9f9f9;
  --card-bg: #ffffff;
  --text-dark: #222222;
  --text-muted: #777777;
  --text-light: #f5f5f5;
  --border-color: #ebebeb;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--body-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* Container */
.container {
  width: 90%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Section Common Styling */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #1a1a1a;
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--primary);
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 10px;
}

.bg-light {
  background-color: #fdfdfd;
}

.bg-grey {
  background-color: #f4f5f7;
}

.bg-dark {
  background-color: var(--dark-bg);
  color: #e5e5e5;
}

.bg-dark .section-title {
  color: #ffffff;
}

/* ==========================================================================
   HEADER / SPLIT NAVIGATION (RIVAL STYLE)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-left,
.nav-right {
  display: flex;
  gap: 32px;
  flex: 1;
}

.nav-left {
  justify-content: flex-end;
  padding-right: 30px;
}

.nav-right {
  justify-content: flex-start;
  padding-left: 30px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #444;
  position: relative;
  padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.brand-center {
  flex-shrink: 0;
  text-align: center;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  background: #ffffff;
  color: #222;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 1px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.brand-logo:hover {
  background: var(--primary);
  color: #ffffff;
  transform: rotate(360deg);
}

/* Mobile Toggle & Menu */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  color: #222;
}

.mobile-toggle svg {
  width: 26px;
  height: 26px;
}

.mobile-menu {
  display: none !important;
  background: #ffffff;
  border-top: 1px solid #eee;
  padding: 20px 0;
}

.mobile-menu.open {
  display: none !important;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 15px;
  text-align: center;
}

/* ==========================================================================
   HERO BANNER / SLIDER
   ========================================================================== */
.hero {
  position: relative;
  height: 90vh;
  min-height: 580px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-align: center;
  overflow: hidden;
  background: #151515;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(35, 38, 43, 0.7) 0%, rgba(15, 17, 21, 0.95) 100%),
    url('../img/path.jpg') center/cover no-repeat;
  filter: brightness(0.65);
  transform: scale(1.05);
  animation: heroZoom 20s infinite alternate ease-in-out;
}

@keyframes heroZoom {
  0% {
    transform: scale(1);
  }

  100% {
    transform: scale(1.08);
  }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(18, 20, 24, 0.6);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 20px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgb(63, 114, 175, 0.2);
  border: 1px solid var(--primary);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-radius: 30px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 3px;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 300;
  color: #d1d5db;
  margin-bottom: 35px;
  letter-spacing: 1px;
}

.typed-text {
  color: var(--primary);
  font-weight: 600;
  border-bottom: 2px solid var(--primary);
}

.hero-actions {
  display: flex;
  gap: 18px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border: 2px solid var(--primary);
  box-shadow: 0 6px 20px rgba(197, 164, 126, 0.35);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(197, 164, 126, 0.45);
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.7);
}

.btn-outline:hover {
  background: #ffffff;
  color: #1a1a1a;
  border-color: #ffffff;
  transform: translateY(-2px);
}

.hero-scroll-down {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2s infinite;
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translate(-50%, 0);
  }

  40% {
    transform: translate(-50%, -10px);
  }

  60% {
    transform: translate(-50%, -5px);
  }
}

/* ==========================================================================
   ABOUT SECTION (RIVAL 3-COLUMN TRIPTYCH)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 36px;
  align-items: stretch;
}

.about-col {
  background: var(--card-bg);
  padding: 38px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.about-col:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.col-heading {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
  color: #222;
}

.col-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background-color: var(--primary);
}

.about-bio p {
  color: #555;
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-bio a {
  color: var(--primary);
  font-weight: 600;
}

.about-bio a:hover {
  text-decoration: underline;
}

/* Center Profile Card (Distinctive RIVAL Signature) */
.profile-card {
  text-align: center;
  background: #ffffff;
  border: 2px solid #eaeaea;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

.profile-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--primary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.profile-avatar-wrap {
  position: relative;
  width: 170px;
  height: 200px;
  margin: 10px auto 20px;
}

.profile-avatar {
  width: 100%;
  height: 100%;
  border-radius: 20%;
  object-fit: cover;
  border: 5px solid #ffffff;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
  transition: var(--transition);
}

.profile-card:hover .profile-avatar {
  transform: scale(1.03);
}

.profile-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #1a1a1a;
  margin-bottom: 6px;
}

.profile-role {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 22px;
}

/* Double Button (RIVAL vCard Classic: [ Left ] or [ Right ]) */
.rival-double-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f4f4f4;
  border-radius: 40px;
  padding: 4px;
  width: 100%;
  position: relative;
  border: 1px solid #e0e0e0;
}

.rival-double-btn a {
  flex: 1;
  text-align: center;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 30px;
  color: #555;
  transition: var(--transition);
}

.rival-double-btn a:hover {
  background: var(--primary);
  color: #ffffff;
}

.rival-double-btn .divider {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid #ddd;
  font-size: 0.65rem;
  font-style: italic;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  z-index: 1;
}

/* Personal Info Column */
.info-list {
  margin-bottom: 24px;
}

.info-item {
  display: flex;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.9rem;
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  font-weight: 600;
  min-width: 90px;
  color: #333;
}

.info-value {
  color: var(--text-muted);
  word-break: break-all;
}

.info-value a {
  color: var(--text-dark);
}

.info-value a:hover {
  color: var(--primary);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #f3f3f3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #444;
  border: 1px solid #e5e5e5;
  transition: var(--transition);
}

.social-btn svg {
  width: 17px;
  height: 17px;
}

.social-btn:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

/* ==========================================================================
   RESUME & TIMELINE SECTION (RIVAL SIGNATURE)
   ========================================================================== */
.timeline-section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #222;
  margin: 50px 0 35px;
  position: relative;
}

.timeline-section-title:first-of-type {
  margin-top: 10px;
}

.timeline {
  position: relative;
  max-width: 960px;
  margin: 0 auto 50px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background-color: #e2e4e8;
}

.timeline-item {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 45px;
}

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

.timeline-item.left {
  flex-direction: row-reverse;
}

.timeline-content {
  width: calc(50% - 45px);
  background: var(--card-bg);
  padding: 26px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--primary);
}

.timeline-badge {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  z-index: 2;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.timeline-badge svg {
  width: 20px;
  height: 20px;
}

.timeline-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.timeline-role {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 4px;
}

.timeline-institution {
  font-size: 0.9rem;
  font-weight: 500;
  color: #666;
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* ==========================================================================
   PUBLICATIONS & RESEARCH (PORTFOLIO STYLE)
   ========================================================================== */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.filter-btn {
  background: transparent;
  border: 1px solid #dcdcdc;
  padding: 8px 22px;
  border-radius: 30px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #555;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(197, 164, 126, 0.3);
}

.publications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}

.publication-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.publication-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.publication-banner {
  height: 110px;
  background: linear-gradient(135deg, #24292e 0%, #1f2328 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  padding: 15px;
}

.publication-banner-header {
  /* height: 110px; */
  background: linear-gradient(135deg, #24292e 0%, #1f2328 100%);
  position: relative;
  display: flex;
  align-items: center;
  color: #ffffff;
  /* padding: 15px; */
  flex-direction: column;
  justify-content: flex-end;
  /* Keeps the title at the bottom */
  /* Keeps tags at top and title at bottom */
  height: auto;
  /* Allows banner to adjust to text size */
  min-height: unset;
  /* Optional: ensures a minimum height if needed */
  padding: 40px 20px 20px 20px;
  /* Adjust padding to taste */
  box-sizing: border-box;
}

.publication-banner-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: 24px;
  /* Adds breathing room between tags and title */
}

.publication-category-tag {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--primary);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.citation-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 0.72rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.citation-badge svg {
  width: 12px;
  height: 12px;
  fill: var(--primary);
}

.publication-card.patent-card {
  border-color: rgba(197, 164, 126, 0.4);
}

.publication-banner.patent-banner {
  background: linear-gradient(135deg, #1e2832 0%, #15222e 100%);
}

.patent-badge {
  background: #12544F !important;
}

.publication-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.publication-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.publication-title-header {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #e2e2e2;
  line-height: 1.4;
  margin-bottom: 10px;
  text-align: right;
  /* Bottom-right aligns the text */
  margin: 0;
  /* Removes default margins */
  width: 100%;
}

.publication-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 12px;
}

.publication-excerpt {
  font-size: 0.875rem;
  color: #666;
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.publication-actions {
  display: flex;
  gap: 12px;
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.publication-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
}

.publication-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.os-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 36px;
  align-items: stretch;
}

/* ==========================================================================
   TEACHING & RESEARCH PROJECTS
   ========================================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 36px;
  align-items: stretch;
}

.project-card {
  background: var(--card-bg);
  padding: 30px 25px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.project-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.project-subtitle {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 14px;
}

.project-desc {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.contact-card {
  background: var(--card-bg);
  padding: 35px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.contact-info-block {
  display: flex;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-info-block:last-child {
  margin-bottom: 0;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-details p {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.5;
}

.contact-form {
  background: var(--card-bg);
  padding: 35px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: #444;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #dcdcdc;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #111111;
  color: #888888;
  padding: 40px 0;
  text-align: center;
  font-size: 0.85rem;
  border-top: 1px solid #222;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #222222;
  color: #aaaaaa;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #ffffff;
}

.footer-copyright {
  color: #777;
}

/* ==========================================================================
   RESPONSIVE DESIGN (BREAKPOINTS)
   ========================================================================== */
@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 25px;
  }

  .timeline-item {
    flex-direction: row !important;
  }

  .timeline-badge {
    left: 25px;
  }

  .timeline-content {
    width: calc(100% - 65px);
    margin-left: 65px;
  }

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

@media (max-width: 768px) {
  .site-header {
    height: auto;
  }

  .nav-container {
    height: 70px;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .mobile-menu {
    display: none;
    background: #ffffff;
    border-top: 1px solid #eee;
    padding: 20px 0;
  }

  .mobile-menu.open {
    display: block !important;
  }

  .mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-actions {
    flex-direction: column;
  }
}

@media (min-width: 1200px) {
  .about-grid {
    grid-template-columns: 1.2fr 0.9fr 1.2fr;
  }
}