/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0f;
  --bg-light: #112240;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.1);
  --text: #ffffff;
  --text-muted: #8892b0;
  --navy: #112240;
  --transition: 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.4s ease;
}

#navbar.scrolled {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 50px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Nav Toggle (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu ul {
  list-style: none;
  text-align: center;
}

.mobile-menu a {
  display: block;
  color: var(--text);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 600;
  padding: 16px;
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--accent);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: flex; }
  #navbar { padding: 14px 20px; }
  #navbar.scrolled { padding: 10px 20px; }
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
  overflow: hidden;
}

#particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  bottom: -10px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.15;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% { transform: translateY(0); opacity: 0.15; }
  50% { opacity: 0.3; }
  100% { transform: translateY(-100vh); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-photo {
  width: 200px;
  height: 200px;
  margin: 0 auto 30px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.2);
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-greeting {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -2px;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 30px;
  min-height: 1.4em;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: all var(--transition);
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  animation: pulse-down 2s ease-in-out infinite;
}

@keyframes pulse-down {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(8px); opacity: 1; }
}

/* ===== SECTIONS ===== */
.section {
  padding: 100px 50px;
  max-width: 1200px;
  margin: 0 auto;
}

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

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.section-number {
  color: var(--accent);
  font-weight: 400;
  font-size: 1rem;
  margin-right: 8px;
}

@media (max-width: 768px) {
  .section { padding: 60px 20px; }
  .section-title { font-size: 1.5rem; }
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 60px;
  align-items: start;
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  border-radius: 12px;
  border: 2px solid rgba(0, 212, 255, 0.15);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.about-text strong {
  color: var(--text);
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .about-photo {
    max-width: 200px;
    margin: 0 auto;
  }
}

/* ===== EXPERIENCE / TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 20px;
}

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.timeline-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-content h4 {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 4px;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.timeline-content p {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-light);
  border-radius: 16px;
  padding: 30px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.15);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.project-card:hover::before {
  opacity: 1;
}

.project-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
  margin-bottom: 18px;
}

.project-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.project-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  line-height: 1.6;
}

.project-card p strong {
  color: var(--accent);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
  margin-bottom: 12px;
}

.project-tags span {
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.06);
}

.project-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all var(--transition);
}

.project-github:hover {
  color: var(--accent);
  border-color: rgba(0, 212, 255, 0.3);
  background: var(--accent-dim);
}

.project-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 12px;
}

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}

.skills-category {
  background: var(--bg-light);
  border-radius: 14px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition);
}

.skills-category:hover {
  border-color: rgba(0, 212, 255, 0.12);
  transform: translateY(-3px);
}

.skills-category h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--accent);
}

.skills-category h3 i {
  margin-right: 8px;
}

.skills-category ul {
  list-style: none;
}

.skills-category li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.skills-category li:last-child {
  border-bottom: none;
}

@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .skills-grid { grid-template-columns: 1fr; }
}

/* ===== HOBBIES ===== */
.hobbies-section {
  background: var(--bg-light);
  border-radius: 14px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.05);
}

.hobbies-section h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 14px;
}

.hobbies-section h3 i {
  margin-right: 8px;
}

.hobbies-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hobbies-tags span {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 10px;
  border: 1px solid rgba(0, 212, 255, 0.15);
}

.hobbies-tags span i {
  margin-right: 6px;
}

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 700px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-light);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition);
}

.contact-item:hover {
  border-color: rgba(0, 212, 255, 0.15);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.contact-item i {
  font-size: 1.2rem;
  color: var(--accent);
  width: 24px;
  text-align: center;
}

.contact-item span {
  font-size: 0.9rem;
  font-weight: 500;
}

@media (max-width: 500px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: 30px;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* ===== PROJECT MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 30px 16px;
}

.modal-overlay.active {
  display: block;
}

.modal-content {
  background: var(--bg-light);
  border-radius: 20px;
  width: 100%;
  max-width: 850px;
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  position: relative;
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  padding-bottom: 10px;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: none;
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition);
}

.modal-close:hover {
  background: rgba(255,255,255,0.15);
  transform: rotate(90deg);
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 30px 30px 20px;
}

.modal-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  flex-shrink: 0;
}

.modal-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.modal-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.modal-body {
  padding: 0 30px 30px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.modal-body h4 {
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  margin: 20px 0 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.modal-body h4:first-child {
  border-top: none;
  padding-top: 0;
}

.modal-body ul {
  padding-left: 20px;
  margin-bottom: 10px;
}

.modal-body li {
  margin-bottom: 6px;
}

.modal-body li strong {
  color: var(--text);
}

/* Modal Stats */
.modal-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 14px 0;
}

.modal-stat {
  background: rgba(0,0,0,0.2);
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
  border: 1px solid rgba(0, 212, 255, 0.08);
}

.modal-stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.modal-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.3;
}

@media (max-width: 500px) {
  .modal-stats { grid-template-columns: repeat(2, 1fr); }
  .modal-header { flex-direction: column; text-align: center; gap: 12px; }
  .modal-body { padding: 0 18px 24px; }
  .modal-header { padding: 24px 18px 16px; }
}

/* Modal Video */
.modal-video {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin: 16px 0;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.modal-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 12px;
}

/* Modal Tools */
.modal-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.modal-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,0.2);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.06);
}

.modal-tool i {
  color: var(--accent);
  font-size: 0.8rem;
}

/* ===== MODAL GALLERY ===== */
.modal-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.gallery-item {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  border: 1px solid rgba(0, 212, 255, 0.1);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  opacity: 1;
  transform: none;
}

.gallery-item:hover {
  border-color: var(--accent);
  transform: scale(1.03);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.15);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: var(--text);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 16px 8px 6px;
  text-align: center;
  letter-spacing: 0.5px;
}

/* ===== LIGHTBOX ===== */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  cursor: zoom-out;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-caption {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 16px;
}

@media (max-width: 500px) {
  .modal-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== SCROLL ANIMATIONS (only outside modal) ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Modal elements must always be visible */
.modal-overlay * {
  opacity: 1 !important;
  transform: none !important;
}

/* Lightbox Close Button */
.lightbox-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10;
  transition: all var(--transition);
}

.lightbox-close-btn:hover {
  background: rgba(255,255,255,0.2);
  transform: rotate(90deg);
}

/* lightbox img should not close on click — only background */
.lightbox-overlay img {
  cursor: default;
}