/* ===== ROOT VARIABLES ===== */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(99, 179, 237, 0.4);
  --text-primary: #f0f0f0;
  --text-secondary: #a0aec0;
  --text-muted: #4a5568;
  --accent-blue: #63b3ed;
  --accent-purple: #b794f4;
  --accent-green: #68d391;
  --accent-orange: #f6ad55;
  --accent-pink: #fc8181;
  --accent-cyan: #76e4f7;
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(99, 179, 237, 0.15);
  --radius: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 70px;
}

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

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* ===== ANIMATED BACKGROUND ===== */
.bg-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  animation: floatBlob 20s ease-in-out infinite;
}

.bg-blob:nth-child(1) {
  width: 600px; height: 600px;
  background: #667eea;
  top: -200px; left: -200px;
  animation-delay: 0s;
}

.bg-blob:nth-child(2) {
  width: 400px; height: 400px;
  background: #43e97b;
  bottom: -100px; right: -100px;
  animation-delay: -7s;
}

.bg-blob:nth-child(3) {
  width: 300px; height: 300px;
  background: #f6ad55;
  top: 50%; left: 50%;
  animation-delay: -14s;
}

@keyframes floatBlob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: var(--transition);
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-blue);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: 0.5rem 1.2rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: white !important;
  transition: var(--transition);
}

.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.35rem;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  appearance: none;
  -webkit-appearance: none;
  border-radius: 10px;
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.06);
}

.hamburger:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 3px;
  background: rgba(99, 179, 237, 0.08);
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== WRAPPER ===== */
.content-wrapper {
  position: relative;
  z-index: 1;
  padding-top: var(--nav-height);
}

section {
  padding: 6rem 5%;
  max-width: 1280px;
  margin: 0 auto;
}

/* ===== SECTION HEADER ===== */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  display: inline-block;
  padding: 0.3rem 1rem;
  background: rgba(99, 179, 237, 0.1);
  border: 1px solid rgba(99, 179, 237, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-title span {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== HERO ===== */
#hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: 4rem 5%;
  max-width: 1280px;
  margin: 0 auto;
  gap: 4rem;
}

.hero-content { flex: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(104, 211, 145, 0.1);
  border: 1px solid rgba(104, 211, 145, 0.25);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--accent-green);
  margin-bottom: 1.5rem;
  animation: fadeInDown 0.6s ease;
}

.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 0.8rem;
  animation: fadeInUp 0.7s ease 0.1s both;
}

.hero-title-line {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  height: 2em;
  animation: fadeInUp 0.7s ease 0.2s both;
}

.typed-text {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

.cursor {
  display: inline-block;
  width: 3px;
  background: var(--accent-blue);
  margin-left: 2px;
  animation: blink 1s infinite;
  vertical-align: text-bottom;
  height: 1.2em;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
  animation: fadeInUp 0.7s ease 0.3s both;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  animation: fadeInUp 0.7s ease 0.4s both;
}

.btn-primary {
  padding: 0.85rem 2rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(99, 179, 237, 0.3); }

.btn-secondary {
  padding: 0.85rem 2rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover { border-color: var(--accent-blue); color: var(--accent-blue); transform: translateY(-2px); }

.hero-social {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 0.7s ease 0.5s both;
}

.social-link {
  width: 42px; height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  transition: var(--transition);
  font-size: 1rem;
}

.social-link:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* Hero Image */
.hero-visual {
  flex: 0 0 auto;
  animation: fadeInRight 0.8s ease 0.3s both;
  position: relative;
}

.hero-photo-wrapper {
  position: relative;
  width: 340px;
  height: 340px;
}

.hero-photo-bg {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent-blue), var(--accent-purple), var(--accent-green), var(--accent-blue));
  animation: rotateBg 8s linear infinite;
  opacity: 0.6;
}

@keyframes rotateBg {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-photo {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-primary);
  z-index: 1;
}

.hero-photo-placeholder {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 4px solid var(--bg-primary);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--text-muted);
}

.hero-stats {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
  justify-content: center;
}

.hero-stat {
  text-align: center;
  padding: 0.8rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.hero-stat .number {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ===== ABOUT ===== */
#about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text .section-header { text-align: left; }

.about-description {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.protected-email-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.protected-email-copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.protected-email-copy-button[hidden] {
  display: none;
}

.protected-email-copy-button:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

.protected-email-copy-button:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.protected-email-copy-button.copied {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.protected-email-feedback {
  min-width: 88px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.protected-email-feedback.success {
  color: var(--accent-green);
}

.protected-email-feedback.error {
  color: var(--accent-pink);
}

#about .detail-item .protected-email-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 0.55rem;
  row-gap: 0.3rem;
  flex: 1;
  min-width: 0;
}

#about .detail-item .protected-email-link {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#about .detail-item .protected-email-copy-button {
  justify-self: end;
  flex-shrink: 0;
}

#about .detail-item .protected-email-feedback {
  grid-column: 1 / -1;
  min-width: 0;
}

.detail-icon {
  color: var(--accent-blue);
  font-size: 1rem;
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.about-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.about-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.about-card-icon {
  font-size: 2rem;
  margin-bottom: 0.8rem;
}

.about-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.about-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== SKILLS ===== */
#skills { padding: 6rem 5%; max-width: 1350px; margin: 0 auto; }

.skills-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 3rem;
}

.skill-tab {
  padding: 0.5rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.skill-tab:hover { border-color: var(--accent-blue); color: var(--accent-blue); }
.skill-tab.active {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-color: transparent;
  color: white;
  font-weight: 600;
}

.skills-panel { display: none; }
.skills-panel.active { display: block; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.skill-card {
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.skill-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.skill-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-name-wrapper {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.skill-icon {
  width: 32px; height: 32px;
  object-fit: contain;
  flex-shrink: 0;
}

.skill-icon-placeholder {
  width: 32px; height: 32px;
  background: var(--bg-secondary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 700;
  flex-shrink: 0;
  text-align: center;
  padding: 2px;
  line-height: 1.2;
}

.skill-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-level-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-blue);
}

.skill-bar-bg {
  width: 100%;
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  width: 0;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== PROJECTS ===== */
#projects { padding: 6rem 5%; max-width: 1280px; margin: 0 auto; }

.projects-featured {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

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

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.project-folder {
  color: var(--accent-blue);
  font-size: 2rem;
}

.project-links {
  display: flex;
  gap: 0.8rem;
}

.project-link {
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.project-link:hover { color: var(--accent-blue); transform: translateY(-2px); }

.project-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: var(--transition);
}

.project-card:hover .project-name { color: var(--accent-blue); }

.project-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-badge {
  padding: 0.25rem 0.7rem;
  background: rgba(99, 179, 237, 0.08);
  border: 1px solid rgba(99, 179, 237, 0.15);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-blue);
}

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

.project-card-mini {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.project-card-mini:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.project-card-mini .project-name { font-size: 1rem; }
.project-card-mini .project-description { font-size: 0.85rem; }

.show-more-btn {
  display: block;
  margin: 2rem auto 0;
  padding: 0.85rem 2.5rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.show-more-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* ===== EXPERIENCE ===== */
#experience { padding: 6rem 5%; max-width: 1350px; margin: 0 auto; }

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
}

.timeline-item {
  position: relative;
  padding: 0 0 2.5rem 5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-item.visible { opacity: 1; transform: translateY(0); }

.timeline-dot {
  position: absolute;
  left: 16px;
  top: 4px;
  width: 18px; height: 18px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
  z-index: 1;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-card);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.timeline-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company {
  color: var(--accent-blue);
  font-weight: 600;
  font-size: 0.95rem;
}

.timeline-period {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 0.2rem 0.7rem;
  border-radius: 100px;
  white-space: nowrap;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.timeline-achievements {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.timeline-achievement {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.timeline-achievement::before {
  content: '▸';
  color: var(--accent-green);
  flex-shrink: 0;
  margin-top: 1px;
}

/* ===== EDUCATION ===== */
#education { padding: 4rem 5%; max-width: 1350px; margin: 0 auto; }

.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  gap: 1.2rem;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.edu-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.edu-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  line-height: 1;
}

.edu-degree {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.edu-school {
  color: var(--accent-purple);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.edu-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===== CERTIFICATIONS ===== */
.certifications-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  font-size: 0.9rem;
}

.cert-card--link {
  cursor: pointer;
}

.cert-card--link:hover {
  border-color: var(--accent-orange);
  transform: translateY(-2px);
}

.cert-card--link:focus-visible {
  outline: 2px solid var(--accent-orange);
  outline-offset: 3px;
  border-color: var(--accent-orange);
  transform: translateY(-2px);
}

.cert-card--static {
  cursor: default;
}

.cert-icon { font-size: 1.4rem; }
.cert-name { font-weight: 600; }
.cert-issuer { font-size: 0.8rem; color: var(--text-muted); }

/* ===== CONTACT ===== */
#contact {
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

#contact { padding: 6rem 5%; max-width: 1350px; margin: 0 auto; }

.contact-flash-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 760px;
  margin: 0 auto 2rem;
}

.contact-flash {
  padding: 0.95rem 1.2rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.contact-flash-success {
  border-color: rgba(104, 211, 145, 0.35);
  background: rgba(104, 211, 145, 0.08);
}

.contact-flash-error {
  border-color: rgba(252, 129, 129, 0.35);
  background: rgba(252, 129, 129, 0.08);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.contact-item:hover {
  border-color: var(--border-hover);
  transform: translateX(5px);
}

.contact-item-icon {
  font-size: 1.4rem;
  color: var(--accent-blue);
}

.contact-item-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.contact-item-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  padding: 0.85rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.1);
}

.form-input-error {
  border-color: rgba(252, 129, 129, 0.5);
}

.form-error {
  font-size: 0.8rem;
  color: var(--accent-pink);
}

.form-textarea { min-height: 140px; resize: vertical; }

/* ===== FOOTER ===== */
.footer {
  position: relative;
  z-index: 1;
  padding: 2rem 5%;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer span {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border: none;
  border-radius: 10px;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.scroll-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-3px); box-shadow: var(--shadow-glow); }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  #about { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 4rem 4%; }
  #hero { flex-direction: column-reverse; text-align: center; padding: 3rem 4%; min-height: auto; }
  .hero-photo-wrapper { width: 220px; height: 220px; }
  .hero-actions { justify-content: center; }
  .hero-social { justify-content: center; }
  .hero-description { margin: 0 auto 2.5rem; }
  .about-details { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr; }
  .nav-links { display: none; flex-direction: column; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(10, 10, 15, 0.98); padding: 2rem; border-bottom: 1px solid var(--border); gap: 1.5rem; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .timeline::before { left: 14px; }
  .timeline-item { padding-left: 3.5rem; }
  .timeline-dot { left: 6px; }
  .projects-featured { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }

}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
}