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

/* =========================
   BODY
========================= */
body {
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #0f1115, #151823);
  color: #ffffff;
  line-height: 1.6;
}

/* =========================
   NAVBAR
========================= */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  padding: 0 60px;
  background: #151821;
}

.navbar ul {
  list-style: none;
  display: flex;
  gap: 28px;
}

.navbar a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.navbar a:hover {
  color: #00bcd4;
}

/* Brand */
.nav-brand.vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.nav-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* Logo */
.logo-img {
  height: 56px;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.logo-img:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 8px rgba(0,188,212,0.5));
}

/* =========================
   HERO
========================= */
.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 100px 60px;
  background: radial-gradient(
    circle at left,
    rgba(0,188,212,0.14),
    #0f1115 60%
  );
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  color: #bfc6cc;
  margin-bottom: 30px;
}

/* CTA */
.cta {
  display: inline-block;
  padding: 14px 34px;
  background: #00bcd4;
  color: #111;
  text-decoration: none;
  font-weight: bold;
  border-radius: 30px;
  transition: all 0.3s ease;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0,188,212,0.3);
}

/* =========================
   GENERIC CONTAINER
========================= */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px;
}

/* =========================
   APPROACH / ABOUT / PROJECTS
========================= */
.approach,
.about-me-section,
.projects {
  padding: 120px 0;
}

.approach .container,
.about-me-section .container,
.projects .container {
  background: #ffffff;
  color: #222;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.approach h2,
.about-me-section h2,
.projects h2 {
  font-size: 36px;
  margin-bottom: 20px;
  position: relative;
}

.approach h2::after,
.about-me-section h2::after,
.projects h2::after {
  content: "";
  width: 60px;
  height: 4px;
  background: #00bcd4;
  display: block;
  margin-top: 12px;
  border-radius: 2px;
}

.approach-lead {
  font-size: 20px;
  max-width: 700px;
  margin-bottom: 30px;
  color: #444;
}

.approach-list {
  list-style: none;
}

.approach-list li {
  margin-bottom: 14px;
  padding-left: 26px;
  position: relative;
}

.approach-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #00bcd4;
  font-weight: bold;
}

.about-me {
  font-size: 18px;
  color: #444;
  max-width: 700px;
}

.projects-placeholder {
  color: #666;
  font-style: italic;
}

/* =========================
   SERVICES
========================= */
main.container {
  margin: 120px auto;
  background: #ffffff;
  color: #222;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.tech {
  font-weight: bold;
  color: #555;
}

/* =========================
   FOOTER
========================= */
footer {
  text-align: center;
  padding: 30px;
  color: #888;
  font-size: 14px;
}

.lang-switch button {
  background: transparent;
  border: 1px solid #444;
  color: #aaa;
  padding: 6px 12px;
  margin: 0 4px;
  cursor: pointer;
}

.lang-switch button:hover {
  color: #00bcd4;
  border-color: #00bcd4;
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    height: auto;
    padding: 20px;
  }

  .navbar ul {
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
  }

  .hero {
    padding: 80px 30px;
  }

  .hero h1 {
    font-size: 36px;
  }

  .container {
    padding: 40px 25px;
  }
}

/* =========================
   CONTACT SECTION
========================= */
.contact {
  padding: 120px 0;
}

.contact .container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px;
  background: #ffffff;
  color: #222;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.contact h2 {
  font-size: 36px;
  margin-bottom: 20px;
  position: relative;
}

.contact h2::after {
  content: "";
  width: 60px;
  height: 4px;
  background: #00bcd4;
  display: block;
  margin-top: 12px;
  border-radius: 2px;
}

.contact-lead {
  font-size: 20px;
  max-width: 700px;
  margin-bottom: 30px;
  color: #444;
}

.contact-list {
  list-style: none;
  padding-left: 0;
}

.contact-list li {
  font-size: 18px;
  margin-bottom: 16px;
}

.contact-list a {
  color: #00bcd4;
  text-decoration: none;
  font-weight: 500;
}

.contact-list a:hover {
  text-decoration: underline;
}