/* ===================================================
   JAHANGIR PORTFOLIO - MAIN STYLESHEET
   Water / Glass / White-Gray Aesthetic
=================================================== */

/* ---- CSS Custom Properties ---- */
:root {
  --water-deep:    #1b4f8a;
  --water-mid:     #2b7ce9;
  --water-light:   #87bfff;
  --water-pale:    #d6eaff;
  --water-foam:    #eef6ff;
  --glass-bg:      rgba(255,255,255,0.55);
  --glass-border:  rgba(255,255,255,0.75);
  --gray-100:      #f8faff;
  --gray-200:      #eef0f7;
  --gray-400:      #9aa3b2;
  --gray-700:      #4a4e69;
  --dark:          #0d1b2a;
  --white:         #ffffff;
  --shadow-sm:     0 2px 12px rgba(43,124,233,0.08);
  --shadow-md:     0 8px 32px rgba(43,124,233,0.14);
  --shadow-lg:     0 20px 60px rgba(43,124,233,0.18);
  --radius:        16px;
  --radius-sm:     8px;
  --transition:    0.4s cubic-bezier(0.25,0.46,0.45,0.94);
  --max-w:         1200px;
}

/* ---- Global Layout ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

section {
  padding: 100px 0;
  position: relative;
}

/* ---- Animated Background ---- */
.water-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: linear-gradient(135deg,
    #f0f7ff 0%,
    #e8f4fd 25%,
    #f5f8ff 50%,
    #ecf3ff 75%,
    #f8faff 100%);
}

.water-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 20% 30%, rgba(135,191,255,0.2) 0%, transparent 60%),
              radial-gradient(ellipse 60% 40% at 80% 70%, rgba(43,124,233,0.12) 0%, transparent 60%);
  animation: waterShift 12s ease-in-out infinite alternate;
}

@keyframes waterShift {
  0%   { transform: translateX(0) translateY(0) scale(1); }
  100% { transform: translateX(2%) translateY(-1%) scale(1.03); }
}

/* Floating bubbles */
.bubbles { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.bubble {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%,
    rgba(255,255,255,0.8),
    rgba(135,191,255,0.25));
  border: 1px solid rgba(255,255,255,0.5);
  animation: floatUp linear infinite;
  backdrop-filter: blur(2px);
}
@keyframes floatUp {
  0%   { transform: translateY(110vh) rotate(0deg); opacity: 0; }
  5%   { opacity: 0.7; }
  95%  { opacity: 0.4; }
  100% { transform: translateY(-10vh) rotate(360deg); opacity: 0; }
}

/* ===================================================
   NAVIGATION
=================================================== */
#main-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  transition: all 0.4s ease;
}

#main-nav.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(43,124,233,0.1);
  box-shadow: 0 4px 20px rgba(43,124,233,0.08);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: all 0.3s ease;
  letter-spacing: 0.2px;
}
.nav-links a:hover, .nav-links a.active {
  background: linear-gradient(135deg, var(--water-mid), var(--water-light));
  color: var(--white);
  box-shadow: 0 4px 12px rgba(43,124,233,0.3);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--water-deep);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===================================================
   HERO SECTION
=================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--water-pale);
  color: var(--water-deep);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 24px;
  margin-bottom: 24px;
  border: 1px solid rgba(43,124,233,0.2);
}
.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--water-mid);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.hero-name {
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--dark);
  margin-bottom: 12px;
}

.hero-title {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--water-mid);
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--gray-700);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-700);
  box-shadow: var(--shadow-sm);
}
.badge svg { color: var(--water-mid); }

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  color: var(--white);
  padding: 14px 28px;
  border-radius: 48px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 8px 24px rgba(43,124,233,0.35);
  letter-spacing: 0.2px;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(43,124,233,0.45);
  color: var(--white);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  color: var(--water-deep);
  padding: 14px 28px;
  border-radius: 48px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1.5px solid rgba(43,124,233,0.3);
  cursor: pointer;
  transition: all var(--transition);
  backdrop-filter: blur(10px);
}
.btn-outline:hover {
  background: var(--water-pale);
  border-color: var(--water-mid);
  transform: translateY(-3px);
  color: var(--water-deep);
}

/* Hero Card / Floating Panel */
.hero-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 24px;
  padding: 36px 28px;
  box-shadow: var(--shadow-lg);
  animation: heroFloat 6s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0px) rotate(0.5deg); }
  50% { transform: translateY(-12px) rotate(-0.5deg); }
}

.hero-avatar {
  width: 100px; height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--water-deep), var(--water-light));
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  font-weight: 900;
  color: white;
  box-shadow: 0 8px 24px rgba(43,124,233,0.3);
  letter-spacing: -2px;
}

.hero-card-name {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}
.hero-card-sub {
  text-align: center;
  font-size: 0.82rem;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.stat-box {
  background: rgba(43,124,233,0.06);
  border: 1px solid rgba(43,124,233,0.12);
  border-radius: 12px;
  padding: 14px 12px;
  text-align: center;
}
.stat-box .num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--water-deep);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-box .lbl {
  font-size: 0.72rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 500;
}

.hero-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--gray-700);
}
.hero-location svg { color: var(--water-mid); }

/* ===================================================
   SECTION HEADERS
=================================================== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  background: var(--water-pale);
  color: var(--water-deep);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 24px;
  border: 1px solid rgba(43,124,233,0.2);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.8px;
  margin-bottom: 14px;
  line-height: 1.2;
}
.section-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--water-mid), var(--water-light));
  border-radius: 4px;
  margin: 0 auto 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--gray-700);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===================================================
   GLASS CARD
=================================================== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  overflow: hidden;
}
.glass-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(43,124,233,0.25);
}

/* ===================================================
   ABOUT SECTION
=================================================== */
#about { background: transparent; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  letter-spacing: -0.4px;
}

.about-text p {
  color: var(--gray-700);
  line-height: 1.85;
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  border: 1px solid rgba(43,124,233,0.2);
  backdrop-filter: blur(8px);
  padding: 10px 18px;
  border-radius: 48px;
  font-size: 0.85rem;
  color: var(--water-deep);
  font-weight: 500;
  transition: all 0.3s;
  text-decoration: none;
}
.contact-chip:hover {
  background: var(--water-pale);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.research-interests {
  padding: 28px;
  border-radius: var(--radius);
}
.research-interests h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.82rem;
}
.interest-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(43,124,233,0.08);
  font-size: 0.92rem;
  color: var(--gray-700);
  line-height: 1.5;
}
.interest-item:last-child { border-bottom: none; }
.interest-icon {
  width: 28px; height: 28px;
  min-width: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--water-mid), var(--water-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: white;
  margin-top: 1px;
}

/* ===================================================
   EDUCATION SECTION
=================================================== */
#education { background: transparent; }

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--water-mid), var(--water-pale));
}

.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  position: relative;
}

.timeline-dot {
  width: 64px;
  height: 64px;
  min-width: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.4rem;
  box-shadow: 0 4px 16px rgba(43,124,233,0.3);
  z-index: 1;
}

.timeline-content {
  flex: 1;
  padding: 24px 28px;
  margin-top: 6px;
}

.timeline-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--water-mid);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.timeline-degree {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}
.timeline-school {
  font-size: 0.92rem;
  color: var(--gray-700);
  margin-bottom: 10px;
}
.timeline-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(43,124,233,0.1), rgba(135,191,255,0.15));
  color: var(--water-deep);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 24px;
  border: 1px solid rgba(43,124,233,0.2);
  margin-bottom: 12px;
}
.timeline-content ul {
  list-style: none;
}
.timeline-content ul li {
  font-size: 0.88rem;
  color: var(--gray-700);
  line-height: 1.6;
  padding: 3px 0;
  padding-left: 16px;
  position: relative;
}
.timeline-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--water-light);
}

/* ===================================================
   PROJECTS SECTION
=================================================== */
#projects { background: transparent; }

.projects-filter {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 9px 22px;
  border-radius: 48px;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--glass-bg);
  border: 1px solid rgba(43,124,233,0.2);
  color: var(--gray-700);
  cursor: pointer;
  transition: all 0.3s;
  backdrop-filter: blur(8px);
}
.filter-btn.active, .filter-btn:hover {
  background: linear-gradient(135deg, var(--water-mid), var(--water-light));
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(43,124,233,0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.project-thumb {
  height: 190px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb-icon {
  font-size: 3.5rem;
  opacity: 0.3;
  transition: all 0.4s;
}
.project-card:hover .project-thumb-icon {
  opacity: 0.5;
  transform: scale(1.1);
}
.project-category-pill {
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
  color: white;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.3);
  white-space: nowrap;
  pointer-events: none;
}

.project-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--water-deep);
  color: white;
  border: none;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 10px;
  transition: background 0.2s, transform 0.2s;
}
.project-view-btn:hover {
  background: var(--water-mid);
  transform: translateY(-1px);
}



.project-body {
  padding: 22px 24px;
}
.project-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.4;
  letter-spacing: -0.2px;
}
.project-desc {
  font-size: 0.88rem;
  color: var(--gray-700);
  line-height: 1.65;
  margin-bottom: 16px;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tag {
  background: var(--water-pale);
  color: var(--water-deep);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.3px;
}

/* ===================================================
   PDF MODAL
=================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,27,42,0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-box {
  background: white;
  border-radius: 20px;
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.25);
  transform: scale(0.95) translateY(20px);
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.modal-overlay.open .modal-box {
  transform: scale(1) translateY(0);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-100);
}
.modal-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
}
.modal-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.modal-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 24px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}
.modal-btn.primary {
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  color: white;
}
.modal-btn.secondary {
  background: var(--gray-200);
  color: var(--gray-700);
}
.modal-btn:hover { transform: translateY(-1px); }
.modal-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gray-200);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--gray-700);
  transition: all 0.2s;
}
.modal-close:hover { background: #ffe0e0; color: #e00; }
.modal-body {
  flex: 1;
  overflow: hidden;
  position: relative;
  min-height: 500px;
}
.modal-body iframe {
  width: 100%; height: 100%;
  border: none;
}
.modal-info {
  padding: 20px 24px;
  background: var(--water-foam);
  border-top: 1px solid var(--water-pale);
}
.modal-info p {
  font-size: 0.88rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ===================================================
   SKILLS SECTION
=================================================== */
#skills { background: transparent; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.skill-card {
  padding: 28px;
}
.skill-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.skill-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.skill-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.2px;
}

.skill-item {
  margin-bottom: 14px;
}
.skill-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
}
.skill-bar-bg {
  height: 6px;
  background: rgba(43,124,233,0.1);
  border-radius: 6px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--water-deep), var(--water-mid));
  width: 0;
  transition: width 1.2s cubic-bezier(0.25,0.46,0.45,0.94);
}

/* ===================================================
   AWARDS SECTION
=================================================== */
#awards { background: transparent; }

.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.award-card {
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.award-card::before {
  content: '🏆';
  position: absolute;
  right: 20px; top: 16px;
  font-size: 2.5rem;
  opacity: 0.08;
}
.award-year {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--water-mid);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}
.award-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
  line-height: 1.3;
  letter-spacing: -0.2px;
}
.award-org {
  font-size: 0.85rem;
  color: var(--gray-700);
  margin-bottom: 10px;
}
.award-desc {
  font-size: 0.85rem;
  color: var(--gray-400);
  line-height: 1.6;
}

/* ===================================================
   EXPERIENCE SECTION
=================================================== */
#experience { background: transparent; }

.exp-grid {
  display: grid;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.exp-card {
  padding: 28px 32px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.exp-badge {
  width: 52px; height: 52px;
  min-width: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--water-pale), var(--water-foam));
  border: 1.5px solid rgba(43,124,233,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.exp-content { flex: 1; }
.exp-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
  letter-spacing: -0.2px;
}
.exp-company {
  font-size: 0.88rem;
  color: var(--water-mid);
  font-weight: 600;
  margin-bottom: 4px;
}
.exp-period {
  font-size: 0.78rem;
  color: var(--gray-400);
  margin-bottom: 12px;
}
.exp-desc {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.7;
}

/* ===================================================
   CONTACT SECTION
=================================================== */
#contact { background: transparent; }

.contact-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
.contact-item {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.contact-item-icon {
  width: 48px; height: 48px;
  min-width: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--water-mid), var(--water-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
}
.contact-item-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-400);
  font-weight: 600;
  margin-bottom: 4px;
}
.contact-item-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark);
}

.contact-form {
  padding: 32px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: rgba(43,124,233,0.04);
  border: 1.5px solid rgba(43,124,233,0.15);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--dark);
  font-family: inherit;
  transition: all 0.3s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--water-mid);
  background: rgba(43,124,233,0.06);
  box-shadow: 0 0 0 3px rgba(43,124,233,0.12);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* ===================================================
   FOOTER
=================================================== */
#site-footer {
  background: linear-gradient(135deg, var(--dark) 0%, #0a1628 100%);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.footer-bio {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.social-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: white;
  transition: all 0.3s;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.1);
}
.social-btn:hover {
  background: var(--water-mid);
  border-color: var(--water-mid);
  transform: translateY(-3px);
  color: white;
}
.footer-col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--water-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.85rem; }

/* ===================================================
   SCROLL TO TOP
=================================================== */
#scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--water-deep), var(--water-mid));
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 8px 24px rgba(43,124,233,0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s;
  z-index: 999;
}
#scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
#scroll-top:hover { transform: translateY(-4px); }

/* ===================================================
   AOS ANIMATIONS (custom)
=================================================== */
[data-aos] { opacity: 0; transition: all 0.7s cubic-bezier(0.25,0.46,0.45,0.94); }
[data-aos="fade-up"] { transform: translateY(32px); }
[data-aos="fade-right"] { transform: translateX(-32px); }
[data-aos="fade-left"] { transform: translateX(32px); }
[data-aos="zoom-in"] { transform: scale(0.9); }
[data-aos].aos-animate { opacity: 1; transform: none; }

/* ===================================================
   RESPONSIVE
=================================================== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 400px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 70px 0; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); padding: 16px; border-bottom: 1px solid rgba(43,124,233,0.1); gap: 4px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .hero-name { font-size: 2.4rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .awards-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .timeline::before { left: 28px; }
  .timeline-dot { width: 56px; height: 56px; min-width: 56px; font-size: 1.2rem; }
  .exp-card { flex-direction: column; gap: 16px; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-outline { justify-content: center; }
  .modal-header { flex-direction: column; align-items: flex-start; gap: 12px; }
}


/* =====================================================
   HERO AVATAR PHOTO
===================================================== */
.hero-avatar {
    overflow: hidden;
    padding: 0;
    background: transparent;
}
.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    border-radius: 50%;
    display: block;
}

/* =====================================================
   RESUME BUTTON
===================================================== */
.btn-resume {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #e97c2b, #f5a623);
    color: #fff;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.92rem;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(233, 124, 43, 0.3);
    white-space: nowrap;
}
.btn-resume:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(233, 124, 43, 0.4);
    color: #fff;
}

/* =====================================================
   PROJECT THUMB IMAGE SUPPORT
===================================================== */
.project-thumb {
    position: relative;
    overflow: hidden;
}
.project-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    position: absolute;
    top: 0; left: 0;
    border-radius: 16px 16px 0 0;
    z-index: 1;
}

}

/* =====================================================
   CERTIFICATIONS SECTION
===================================================== */
#certifications {
    padding: 80px 0;
}

.cert-slider-wrap {
    position: relative;
    overflow: hidden;
    padding: 0 50px 56px;
}

.cert-slider {
    display: flex !important;
    gap: 24px;
    transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    will-change: transform;
}

.cert-slide {
    min-width: 280px !important;
    max-width: 280px !important;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0 !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cert-slide:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(43, 124, 233, 0.15);
}

.cert-thumb {
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    background: linear-gradient(135deg, #1b4f8a, #2b7ce9);
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cert-thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #8a4f1b, #e97c2b);
}
.cert-icon {
    font-size: 3rem;
}

.cert-body {
    padding: 16px 20px;
}
.cert-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
    line-height: 1.3;
}
.cert-org {
    font-size: 0.8rem;
    color: var(--water-mid);
    font-weight: 600;
    margin-bottom: 4px;
}
.cert-year {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-bottom: 8px;
}
.cert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 8px;
}

.cert-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: white;
    box-shadow: 0 4px 16px rgba(43, 124, 233, 0.2);
    cursor: pointer;
    color: var(--water-mid);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.2s;
    margin-top: -28px;
}
.cert-nav:hover {
    background: var(--water-mid);
    color: white;
}
.cert-prev { left: 0; }
.cert-next { right: 0; }

.cert-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}
.cert-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(43, 124, 233, 0.25);
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}
.cert-dot.active {
    background: var(--water-mid);
    width: 24px;
    border-radius: 4px;
}

/* =====================================================
   MOMENTS SECTION
===================================================== */
#moments {
    padding: 80px 0;
    background: linear-gradient(180deg, rgba(240,248,255,0.5) 0%, transparent 100%);
}

.moments-slider-wrap {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    padding: 0 50px 56px;
}

.moments-slider {
    display: flex !important;
    gap: 16px;
    transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    will-change: transform;
}

.moment-slide {
    min-width: 320px !important;
    max-width: 320px !important;
    height: 240px;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0 !important;
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.moment-slide:hover {
    transform: scale(1.03);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}
.moment-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    transition: transform 0.3s ease;
}
.moment-slide:hover img {
    transform: scale(1.05);
}
.moment-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(10, 30, 60, 0.8));
    padding: 24px 16px 12px;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}
.moment-slide:hover .moment-overlay {
    transform: translateY(0);
}

.moments-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.9);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    color: var(--water-deep);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.2s;
    margin-top: -28px;
}
.moments-nav:hover {
    background: var(--water-mid);
    color: white;
}
.moments-prev { left: 0; }
.moments-next { right: 0; }

.moments-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}
.moments-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(43, 124, 233, 0.3);
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}
.moments-dot.active {
    background: var(--water-mid);
    width: 24px;
    border-radius: 4px;
}

/* =====================================================
   MOMENTS LIGHTBOX
===================================================== */
.moments-lightbox-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}
.moments-lightbox-overlay.active {
    display: flex;
}

.moments-lightbox-content {
    max-width: 90vw;
    max-height: 85vh;
    text-align: center;
    position: relative;
}
.moments-lightbox-content img {
    max-width: 85vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    display: block;
    margin: 0 auto;
}
.moments-lightbox-caption {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    margin-top: 12px;
    font-weight: 500;
}

.moments-lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    background: rgba(255,255,255,0.15);
    border: none;
    color: white;
    font-size: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    z-index: 10001;
    line-height: 1;
}
.moments-lightbox-close:hover {
    background: rgba(255,255,255,0.3);
}

.moments-lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.15);
    border: none;
    color: white;
    font-size: 1.5rem;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    z-index: 10001;
}
.moments-lightbox-nav:hover {
    background: rgba(255,255,255,0.3);
}
.moments-lb-prev { left: 16px; }
.moments-lb-next { right: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .cert-slide { min-width: 240px !important; max-width: 240px !important; }
    .moment-slide { min-width: 260px !important; max-width: 260px !important; height: 195px; }
    .cert-slider-wrap, .moments-slider-wrap { padding: 0 0 56px; }
    .cert-nav, .moments-nav { display: none; }
    .btn-resume { padding: 10px 18px; font-size: 0.85rem; }
}