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

:root {
  --color-bg: #fafafa;
  --color-text: #333;
  --color-text-light: #666;
  --color-accent: #2a6496;
  --color-accent-dark: #1d4a6e;
  --color-white: #fff;
  --color-border: #e0e0e0;
  --font-heading: 'Raleway', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent-dark);
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-text);
}

.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

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

.nav-links a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

/* ---- HERO ---- */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 3rem;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: var(--color-white);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 300;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.85;
  max-width: 500px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.hero-cta {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--color-white);
  color: #1a1a2e;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  color: #1a1a2e;
}

/* ---- SECTIONS ---- */
.section {
  padding: 5rem 2rem;
}

.section--alt {
  background: var(--color-white);
}

.section-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.section-inner--reverse {
  direction: rtl;
}

.section-inner--reverse > * {
  direction: ltr;
}

.section-inner--centered {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 700px;
}

.section h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

.section p {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.section ul {
  color: var(--color-text-light);
  margin: 0 0 1rem 1.25rem;
  line-height: 2;
}

.section-image {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.section-image img {
  width: 100%;
  transition: transform 0.4s;
}

.section-image:hover img {
  transform: scale(1.03);
}

/* ---- CONTACT ---- */
.contact {
  padding: 5rem 2rem;
  background: var(--color-white);
}

.contact-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.contact > .contact-inner > p {
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
  display: block;
}

.form input,
.form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s;
  background: var(--color-bg);
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form textarea {
  min-height: 120px;
  resize: vertical;
}

.form button {
  padding: 0.75rem 2rem;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  align-self: center;
}

.form button:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

/* ---- FOOTER ---- */
.footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.85rem;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 1rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .section-inner--reverse {
    direction: ltr;
  }

  .section {
    padding: 3rem 1.5rem;
  }
}