* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray: #252525;
  --light-gray: #f5f5f5;
  --accent: #a50e1a;
}

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--black);
  color: var(--black);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
}

.content-wrapper {
  background: var(--white);
  width: 100%;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 2rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s ease;
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--black);
}

.nav-links a.active {
  color: var(--black);
  font-weight: 700;
  position: relative;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
}

/* Language Dropdown */
.lang-dropdown {
  position: relative;
  display: inline-block;
}

.lang-current {
  background: none;
  border: 2px solid var(--black);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;

  /* FIX iOS Safari */
  -webkit-appearance: none;
  appearance: none;
  color: var(--black);
  outline: none;
}

.lang-current:focus {
  outline: 2px solid var(--black);
  outline-offset: 2px;
}

.lang-current * {
  color: inherit;
}

.lang-current:hover {
  background: var(--black);
  color: var(--white);
}

.lang-arrow {
  font-size: 0.7rem;
  transition: transform 0.3s ease;
}

.lang-dropdown.active .lang-arrow {
  transform: rotate(180deg);
}

.lang-options {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  background: var(--white);
  border: 2px solid var(--black);
  border-radius: 8px;
  min-width: 150px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.lang-dropdown.active .lang-options {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  padding: 0.75rem 1rem;
  text-decoration: none;
  color: var(--black);
  transition: background 0.2s ease;
  font-size: 0.9rem;
  white-space: nowrap;
}

.lang-option:hover {
  background: var(--light-gray);
}

.lang-option:first-child {
  border-radius: 6px 6px 0 0;
}

.lang-option:last-child {
  border-radius: 0 0 6px 6px;
}

.lang-option.active {
  font-weight: 700;
  background: var(--light-gray);
}

.lang-option.active::before {
  content: "✓ ";
  color: var(--black);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  margin: 5px 0;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
  pointer-events: none;
}

.mobile-menu-backdrop.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-radius: 24px 24px 0 0;
  padding: 2rem 2rem 3rem;
  z-index: 1000;
  transform: translateY(100%);
  transition:
    transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.4s ease;
  max-height: 70vh;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  visibility: hidden;
}

.mobile-menu-drawer.active {
  transform: translateY(0);
  visibility: visible;
}

.mobile-menu-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-menu-links li {
  border-bottom: 1px solid var(--light-gray);
}

.mobile-menu-links li:last-child {
  border-bottom: none;
}

.mobile-menu-links a {
  display: block;
  padding: 1.2rem 0;
  text-decoration: none;
  color: var(--black);
  font-size: 1.1rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.mobile-menu-links a.active {
  color: var(--accent);
  font-weight: 700;
}

/* Sections */
section {
  padding: 3rem 3rem;
  padding-left: calc(3rem + env(safe-area-inset-left));
  padding-right: calc(3rem + env(safe-area-inset-right));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

section[id] {
  scroll-margin-top: 4rem;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* Hero Section */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
}

.hero-text {
  max-width: 700px;
  padding: 0 4rem;
  padding-top: 10rem;
  padding-bottom: 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-image {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.hero-image-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e8e8e8 0%, #d0d0d0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10rem;
  color: var(--gray);
  font-weight: 900;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 6.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 2rem;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 2rem);
  color: var(--gray);
  font-weight: 400;
  margin-bottom: 3rem;
  max-width: 700px;
}

.hero-tags {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.tag {
  padding: 0.5rem 1.5rem;
  border: 1px solid var(--black);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
}

.hero-cta {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.btn-primary {
  background: var(--black);
  color: var(--white);
  padding: 1.2rem 3rem;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

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

/* Services Section */
.services {
  background: var(--light-gray);
  padding-left: calc(3rem + env(safe-area-inset-left));
  padding-right: calc(3rem + env(safe-area-inset-right));
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
}

.services-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.service-item {
  position: relative;
  padding-left: 2rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 500;
  color: var(--gray);
  transition: all 0.3s ease;
  line-height: 1.6;
}

.service-item::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0.9rem;
  color: var(--black);
  font-size: 1.5rem;
}

.service-item:hover {
  color: var(--black);
  font-weight: 600;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem;
  align-items: start;
  padding-left: calc(1rem + env(safe-area-inset-left));
  padding-right: calc(1em + env(safe-area-inset-right));
}

.about-intro {
  position: sticky;
  top: 10rem;
}

.about-intro h2 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
}

.about-content p {
  font-size: 1.2rem;
  color: var(--gray);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.about-content p strong {
  color: var(--black);
  font-weight: 600;
}

/* Experience Section */
.experience {
  background: var(--black);
  color: var(--white);
  padding-left: calc(3rem + env(safe-area-inset-left));
  padding-right: calc(3rem + env(safe-area-inset-right));
}

.experience .section-title {
  color: var(--white);
}

.experience-list {
  display: grid;
}

.experience-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 4rem;
  padding: 2rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.experience-date {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.experience-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  color: var(--white);
}

.experience-company {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.experience-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  line-height: 1.7;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  margin-top: 2rem;
  padding-left: calc(3rem + env(safe-area-inset-left));
  padding-right: calc(3rem + env(safe-area-inset-right));
}

.skill-category h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.skill-list span {
  color: var(--gray);
  font-size: 1rem;
  padding: 0.5rem 0;
  transition: color 0.3s ease;
}

.skill-list span:hover {
  color: var(--black);
}

/* Contact Section */
.contact {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding-left: calc(3rem + env(safe-area-inset-left));
  padding-right: calc(3rem + env(safe-area-inset-right));
}

.contact h2 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.contact p {
  color: rgba(255, 255, 255, 0.7);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

.contact-link {
  padding: 1.2rem 3rem;
  border: 1px solid var(--white);
  border-radius: 50px;
  text-decoration: none;
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.contact-link:hover {
  background: var(--white);
  color: var(--black);
}

/* Footer */
footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  padding: 3rem 2rem;
  font-size: 0.9rem;
  position: relative;
  padding-bottom: calc(3rem + env(safe-area-inset-bottom, 0px));
}

/* Responsive */
@media (max-width: 968px) {
  nav {
    padding: 1.5rem 2%;
    padding-left: calc(3rem + env(safe-area-inset-left));
    padding-right: calc(3rem + env(safe-area-inset-right));
  }

  .nav-links {
    gap: 1.5rem;
  }

  section {
    padding: 4rem 3rem;
  }

  .hero {
    height: auto;
  }

  .hero-content {
    grid-template-columns: 1fr;
    height: auto;
  }

  .hero-text {
    padding: 4rem 2rem 4rem 2rem;
    order: 1;
  }

  .hero-image {
    padding-top: 60px;
    min-height: 60vh;
    order: 0;
  }

  .hero-image-placeholder {
    font-size: 6rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-intro {
    position: relative;
    top: 0;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .experience-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: flex;
    flex-direction: column;
  }

  .hero-text {
    padding: 4rem 1.5rem 3rem 1.5rem;
  }

  .hero-image {
    padding-top: 80px;
    min-height: 50vh;
  }

  .hero-image-placeholder {
    font-size: 4rem;
  }

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

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

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}