/* ===========================
   DESIGN SYSTEM / VARIABLES
   =========================== */
:root {
  --bg-primary: #F5F5F5;
  --bg-white: #FFFFFF;
  --bg-card: #FAFAFA;
  --text-primary: #1A1A1A;
  --text-secondary: #666666;
  --text-tertiary: #999999;
  --accent: #F5C518;
  --accent-hover: #E0B210;
  --accent-light: rgba(245, 197, 24, 0.12);
  --accent-text: #666666;
  --border: #E8E8E8;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50px;
  --font-main: 'Outfit', sans-serif;
  --section-padding: 100px 0;
  --container-width: 1100px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* TYPOGRAPHY */
.section-label {
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 3px; color: var(--text-tertiary); margin-bottom: 12px;
}
.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800;
  color: var(--text-primary); line-height: 1.1; margin-bottom: 40px;
}
.section-subtitle {
  font-size: 1.1rem; color: var(--text-secondary);
  max-width: 600px; line-height: 1.8;
}

/* LAYOUT */
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 40px; }
section { padding: var(--section-padding); }

/* ANIMATIONS */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* NAVIGATION */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000; padding: 20px 0; transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm); padding: 14px 0;
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.5px; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 0.85rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition); position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--accent); transition: var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-contact-btn {
  background: var(--text-primary); color: var(--bg-white) !important;
  padding: 10px 24px; border-radius: var(--radius-full);
  font-size: 0.85rem !important; font-weight: 500; transition: var(--transition);
}
.nav-contact-btn::after { display: none !important; }
.nav-contact-btn:hover {
  background: var(--accent) !important; color: var(--text-primary) !important;
  transform: translateY(-1px);
}
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text-primary); transition: var(--transition); border-radius: 2px;
}

/* HERO */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; text-align: center;
  position: relative; padding-top: 80px; background: var(--bg-white);
}
.hero-content { max-width: 800px; }
.hero-label {
  font-size: 0.8rem; font-weight: 500; text-transform: uppercase;
  letter-spacing: 5px; color: var(--text-tertiary); margin-bottom: 24px;
}
.hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(3rem, 8vw, 6.5rem); font-weight: 800;
  line-height: 1; margin-bottom: 16px; letter-spacing: -2px;
  font-family: "Poppins", sans-serif;
}
.hero-title-light { font-weight: 300; display: block; }
.hero-name {
  font-size: clamp(1rem, 2vw, 1.3rem); font-weight: 400;
  color: var(--text-secondary); margin-top: 32px; letter-spacing: 2px;
}

.hero-download-btn {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 40px; padding: 14px 32px;
  background: var(--text-primary); color: var(--bg-white);
  border-radius: var(--radius-full);
  font-size: 0.9rem; font-weight: 500;
  font-family: var(--font-main);
  transition: var(--transition);
  letter-spacing: 0.5px;
}
.hero-download-btn:hover {
  background: var(--accent); color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 197, 24, 0.3);
}

.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-tertiary); font-size: 0.75rem;
  letter-spacing: 2px; text-transform: uppercase;
}
.hero-scroll-line {
  width: 1px; height: 40px; background: var(--border);
  position: relative; overflow: hidden;
}
.hero-scroll-line::after {
  content: ''; position: absolute; top: -100%; left: 0;
  width: 100%; height: 100%; background: var(--accent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { top: -100%; } 50% { top: 100%; } 100% { top: 100%; }
}

/* ABOUT */
.about { background: var(--bg-white); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-text .section-title { margin-bottom: 24px; }
.about-text p {
  color: var(--text-secondary); font-size: 1.05rem;
  line-height: 1.9; margin-bottom: 16px;
}
.about-photo { position: relative; }
.about-photo-wrapper {
  width: 100%; aspect-ratio: 4/5; border-radius: var(--radius-lg);
  overflow: hidden; background: var(--bg-card); position: relative;
}
.about-photo-wrapper img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.about-photo-placeholder {
  width: 100%; height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--bg-card), var(--border));
  color: var(--text-tertiary); font-size: 1rem;
}
.about-photo-placeholder svg { width: 64px; height: 64px; margin-bottom: 12px; opacity: 0.4; }
.about-photo-accent {
  position: absolute; bottom: -16px; right: -16px;
  width: 120px; height: 120px; background: var(--accent);
  border-radius: var(--radius-md); z-index: -1;
}

/* COMPETENCIES */
.competencies { background: var(--bg-primary); }
.competencies-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-top: 48px;
}
.competency-card {
  background: var(--bg-white); padding: 36px 28px;
  border-radius: var(--radius-md); border: 1px solid var(--border);
  transition: var(--transition); position: relative; overflow: hidden;
}
.competency-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--accent);
  transform: scaleX(0); transform-origin: left; transition: var(--transition);
}

.competency-icon {
  width: 48px; height: 48px; background: var(--accent-light);
  border-radius: var(--radius-sm); display: flex;
  align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 20px;
}
.competency-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.competency-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* EXPERIENCE / TIMELINE */
.experience { background: var(--bg-white); }
.timeline { position: relative; margin-top: 48px; }
.timeline::before {
  content: ''; position: absolute; top: 0; left: 8px;
  width: 2px; height: 100%; background: var(--border);
}
.timeline-group { margin-bottom: 48px; }
.timeline-group:last-child { margin-bottom: 0; }
.timeline-company {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 2px; color: var(--accent-text);
  margin-bottom: 20px; padding-left: 36px;
}
.timeline-item {
  position: relative; padding-left: 36px; padding-bottom: 36px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: 0; top: 4px; width: 18px; height: 18px;
  background: var(--bg-white); border: 3px solid var(--border);
  border-radius: 50%; z-index: 1; transition: var(--transition);
}

.timeline-card {
  background: var(--bg-card); padding: 28px;
  border-radius: var(--radius-md); border: 1px solid var(--border);
  transition: var(--transition);
}

.timeline-role { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.timeline-date {
  font-size: 0.85rem; color: var(--text-tertiary);
  margin-bottom: 14px; font-weight: 500;
}
.timeline-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.8; }
.timeline-desc li { position: relative; padding-left: 16px; margin-bottom: 6px; }
.timeline-desc li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 5px; height: 5px; background: var(--accent); border-radius: 50%;
}

/* EDUCATION */
.education { background: var(--bg-primary); }
.education-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 48px;
}
.education-card {
  background: var(--bg-white); padding: 32px 28px;
  border-radius: var(--radius-md); border: 1px solid var(--border);
  transition: var(--transition); text-align: center;
}

.education-icon {
  width: 52px; height: 52px; background: var(--accent-light);
  border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  font-size: 1.4rem; margin: 0 auto 20px;
}
.education-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.education-card .education-institution { font-size: 0.85rem; color: var(--text-tertiary); margin-bottom: 4px; }
.education-card .education-date { font-size: 0.8rem; color: var(--accent-text); font-weight: 600; }

/* SKILLS & LANGUAGES */
.skills { background: var(--bg-white); }
.skills-content {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 48px; margin-top: 48px;
}
.skills-category h3 {
  font-size: 1rem; font-weight: 700; margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}
.skills-category h3 span { font-size: 1.2rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-tag {
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 8px 18px; border-radius: var(--radius-full);
  font-size: 0.85rem; font-weight: 500; transition: var(--transition);
}

.language-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.language-item:last-child { border-bottom: none; }
.language-name { font-weight: 600; font-size: 0.95rem; }
.language-level { font-size: 0.8rem; color: var(--text-tertiary); font-weight: 500; }
.language-bar { display: flex; gap: 4px; margin-top: 6px; }
.language-bar-segment { width: 32px; height: 4px; border-radius: 2px; background: var(--border); }
.language-bar-segment.filled { background: var(--accent); }

/* CONTACT / FOOTER */
.contact { background: var(--text-primary); color: var(--bg-white); padding: 80px 0; }
.contact .section-label { color: var(--accent); }
.contact .section-title { color: var(--bg-white); margin-bottom: 48px; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item { display: flex; align-items: center; gap: 16px; }
.contact-item-icon {
  width: 44px; height: 44px; background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm); display: flex;
  align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.contact-item-text { display: flex; flex-direction: column; }
.contact-item-label {
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 2px; color: rgba(255,255,255,0.4); margin-bottom: 2px;
}
.contact-item-value { font-size: 1rem; font-weight: 500; color: rgba(255,255,255,0.9); }
.contact-item-value a { color: rgba(255,255,255,0.9); transition: var(--transition); }
.contact-item-value a:hover { color: var(--accent); }
.contact-cta {
  text-align: center; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.contact-cta p {
  color: rgba(255,255,255,0.5); margin-bottom: 28px;
  font-size: 1.05rem; line-height: 1.7;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: var(--text-primary);
  padding: 16px 36px; border-radius: var(--radius-full);
  font-size: 1rem; font-weight: 600; transition: var(--transition);
  border: none; cursor: pointer; font-family: var(--font-main);
}
.btn-primary:hover {
  background: var(--accent-hover); transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 197, 24, 0.3);
}
.footer {
  background: var(--text-primary);
  border-top: 1px solid rgba(255,255,255,0.06); padding: 24px 0;
}
.footer .container { display: flex; justify-content: space-between; align-items: center; }
.footer-text { font-size: 0.8rem; color: rgba(255,255,255,0.3); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.8rem; color: rgba(255,255,255,0.3); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .competencies-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-content { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  :root { --section-padding: 64px 0; }
  .container { padding: 0 24px; }
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--bg-white); flex-direction: column;
    padding: 100px 40px 40px; gap: 24px;
    transition: var(--transition); box-shadow: var(--shadow-lg);
  }
  .nav-links.active { right: 0; }
  .nav-links a { font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 1001; }
  .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); }
  .hero { min-height: 85vh; }
  .hero-title {
  font-family: 'Outfit', sans-serif; letter-spacing: -1px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-photo { order: -1; }
  .about-photo-wrapper { aspect-ratio: 16/10; }
  .competencies-grid { grid-template-columns: 1fr; }
  .education-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer .container { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 480px) {
  .hero-title {
  font-family: 'Outfit', sans-serif; font-size: 2.8rem; }
  .section-title { font-size: 2rem; }
}