html {
  scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: rgba(217, 107, 67, 0.3);
}

:root {
  --bg-primary: #1F1D1B;
  --bg-secondary: #2A2724;
  --text-primary: #F2EFE9;
  --text-secondary: #A8A096;
  --accent: #D96B43;
  --accent-hover: #BF5732;
  --border: #3D3834;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(31, 29, 27, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(61, 56, 52, 0.35);
  transition: background-color 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 3rem;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s ease;
}

@media (hover: hover) {
  .nav-logo:hover {
    color: var(--accent-hover);
  }
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  flex: 1;
}

.nav-contact {
  margin-left: auto;
}

.nav-menu a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

@media (hover: hover) {
  .nav-menu a:hover {
    color: var(--accent);
  }
}

.nav-menu a:active {
  color: var(--accent);
  transform: scale(0.95);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6.5rem 1rem 3rem;
  box-sizing: border-box;
}

.hero-content {
  margin-top: auto;
  margin-bottom: auto;
}

.hero-title {
  font-size: 4rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.hero-subsubtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  opacity: 0.8;
  margin-bottom: 0.4rem;
  font-weight: 300;
}

.hero-abroad {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-size: 1rem;
  color: var(--accent);
  background-color: rgba(217, 107, 67, 0.1);
  border: 1px solid rgba(217, 107, 67, 0.25);
  padding: 0.4rem 0.6rem 0.4rem 1.2rem;
  border-radius: 24px;
  margin-bottom: 2rem;
  font-weight: 400;
  max-width: 650px;
  line-height: 1.4;
  margin-left: auto;
  margin-right: auto;
}

.hero-abroad-yt {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  background: rgba(217, 107, 67, 0.2);
  border-radius: 50%;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  transition: background-color 0.25s ease, transform 0.25s ease, color 0.25s ease;
  text-decoration: none;
}

@media (hover: hover) {
  .hero-abroad-yt:hover {
    background-color: var(--accent);
    color: #ffffff;
    transform: scale(1.15);
  }
}

.hero-abroad-yt:active {
  transform: scale(0.95);
  background-color: var(--accent-hover);
  color: #ffffff;
}

.hero-yt-icon {
  width: 14px;
  height: 14px;
  display: block;
}

.hero-profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.profile-image {
  width: 270px;
  height: 270px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 72%;
  border: 3px solid var(--accent);
  box-shadow: 0 0 20px rgba(217, 107, 67, 0.3);
}

.hero-text {
  text-align: center;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2rem;
  background-color: var(--accent);
  color: white;
  font-size: 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

@media (hover: hover) {
  .cta-button:hover {
    background-color: var(--accent-hover);
  }
}

.cta-button:active {
  background-color: var(--accent-hover) !important;
  color: #ffffff !important;
  transform: scale(0.95) !important;
  box-shadow: 0 0 15px rgba(217, 107, 67, 0.6) !important;
  transition: none !important;
}

/* Sections */
section {
  padding: 5rem 0;
  scroll-margin-top: 70px;
}

h2 {
  font-size: 3rem;
  margin-bottom: 2rem;
  text-align: center;
}

.about {
  background-color: var(--bg-secondary);
}

.about p {
  font-size: 1.4rem;
  color: var(--text-secondary);
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  background-color: var(--bg-secondary);
  padding: 2rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: transform 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

@media (hover: hover) {
  .project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
  }
}

.project-card h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.project-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.project-tech {
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: bold;
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}

.project-link {
  color: var(--accent);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent);
  border-radius: 5px;
  transition: background-color 0.3s ease;
  font-size: 1.1rem;
}

@media (hover: hover) {
  .project-link:hover {
    background-color: var(--accent);
    color: white;
  }
}

.project-link:active {
  background-color: var(--accent) !important;
  color: #ffffff !important;
  transform: scale(0.95) !important;
  box-shadow: 0 0 15px rgba(217, 107, 67, 0.6) !important;
  transition: none !important;
}

.project-link.disabled {
  color: #7A7268;
  border-color: var(--border);
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

/* Contact */
.contact {
  background-color: var(--bg-secondary);
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 1.2rem;
  padding: 1rem 2rem;
  border: 1px solid var(--accent);
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

@media (hover: hover) {
  .contact-link:hover {
    background-color: var(--accent);
    color: white;
  }
}

.contact-link:active {
  background-color: var(--accent) !important;
  color: #ffffff !important;
  transform: scale(0.95) !important;
  box-shadow: 0 0 15px rgba(217, 107, 67, 0.6) !important;
  transition: none !important;
}

/* Footer */
.footer {
  background-color: var(--bg-primary);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-secondary);
}

/* Language Switcher */
.lang-switcher {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.4rem 0.8rem;
  border-radius: 5px;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: background-color 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}

@media (hover: hover) {
  .lang-switcher:hover {
    background-color: var(--accent);
    color: white;
  }
}

.lang-switcher:active {
  background-color: var(--accent) !important;
  color: #ffffff !important;
  transform: scale(0.95) !important;
  box-shadow: 0 0 15px rgba(217, 107, 67, 0.6) !important;
  transition: none !important;
}

/* Project Card Images */
.project-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

@media (hover: hover) {
  .project-card:hover .project-card-image img {
    transform: scale(1.05);
  }
}

/* About paragraph spacing */
.about p + p {
  margin-top: 1.2rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    gap: 1rem;
  }

  .nav-menu {
    gap: 1rem;
  }

  .hero {
    height: auto;
    min-height: 100dvh;
    padding: 5.5rem 1rem 3rem 1rem;
  }

  .hero-profile {
    flex-direction: column;
    gap: 1.2rem;
  }

  .hero-text {
    text-align: center;
  }

  .profile-image {
    width: 180px;
    height: 180px;
  }

  .hero-title {
    font-size: 2.4rem;
    letter-spacing: -0.02em;
  }

  .hero-subtitle {
    font-size: 1.15rem;
    margin-bottom: 0.4rem;
  }

  .hero-subsubtitle {
    font-size: 1.05rem;
    margin-bottom: 0.6rem;
  }

  .hero-abroad {
    font-size: 0.95rem;
    padding: 0.4rem 1rem;
    margin-bottom: 1.8rem;
  }

  .contact-info {
    flex-direction: column;
    align-items: center;
  }

  /* Improve project grid on small screens */
  .project-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .project-card {
    padding: 1.5rem;
  }


  /* Improve about section readability */
  .about p {
    font-size: 1.1rem;
    text-align: left;
    padding: 0 0.5rem;
  }

  /* Improve hero section */
  .cta-button {
    font-size: 1.2rem;
    padding: 0.8rem 1.5rem;
  }

  /* Section padding */
  section {
    padding: 3rem 0;
  }

  h2 {
    font-size: 2rem;
  }

  /* Language switcher mobile */
  .lang-switcher {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
  }

  /* Contact links stack better */
  .contact-link {
    font-size: 1rem;
    padding: 0.8rem 1.5rem;
  }
}

/* Extra-small screens */
@media (max-width: 480px) {
  .nav-menu {
    gap: 0.5rem;
  }

  .nav-menu a {
    font-size: 0.85rem;
  }

  .hero {
    padding: 5rem 0.8rem 2.5rem 0.8rem;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
  }

  .hero-subsubtitle {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
  }

  .hero-abroad {
    font-size: 0.88rem;
    padding: 0.35rem 0.8rem;
    margin-bottom: 1.5rem;
  }

  .profile-image {
    width: 150px;
    height: 150px;
  }

  .project-card h3 {
    font-size: 1.2rem;
  }

  .project-card p {
    font-size: 1rem;
  }
}