/* ============================================
   MN TECH ACADEMY — External Stylesheet
   All CSS lives here. No inline styles.
   ============================================ */

/* ---------- Google Fonts Import ---------- */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800&family=Outfit:wght@300;400;500;600&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  --navy:   #0b1120;
  --dark:   #111827;
  --card:   #1a2235;
  --border: #243048;
  --teal:   #0ea5e9;
  --teal2:  #38bdf8;
  --gold:   #f59e0b;
  --text:   #e2e8f0;
  --muted:  #64748b;
  --white:  #ffffff;
  --radius: 12px;
}

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

/* Body — background color + font family */
body {
  background-color: var(--navy);
  font-family: 'Outfit', sans-serif;
  color: var(--text);
  line-height: 1.7;
  scroll-behavior: smooth;
}

/* Container utility */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVIGATION BAR — background color
   ============================================ */
.navbar {
  background-color: #090e1a;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-family: 'Syne', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 1px;
}

.nav-brand span {
  color: var(--teal);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  background-color: var(--dark);
  background-image:
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(14,165,233,0.12) 0%, transparent 65%);
  padding: 110px 24px;
  text-align: center;
}

/* Headings — text color */
.hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 18px;
  line-height: 1.15;
}

/* Paragraphs — text color + font */
.hero p {
  color: var(--muted);
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 auto 32px;
}

/* Buttons */
.btn-hero {
  display: inline-block;
  background-color: var(--teal);
  color: var(--navy);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 36px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background-color 0.2s, transform 0.15s;
  letter-spacing: 0.5px;
}

.btn-hero:hover {
  background-color: var(--teal2);
  transform: translateY(-2px);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background-color: var(--navy);
  padding: 80px 0;
}

/* Headings color */
.about h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

hr {
  border: none;
  border-top: 2px solid var(--teal);
  width: 60px;
  margin-bottom: 28px;
}

/* Paragraphs — color + font */
.about p {
  color: #94a3b8;
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  max-width: 720px;
}

/* ============================================
   COURSES SECTION
   ============================================ */
.courses {
  background-color: var(--dark);
  padding: 80px 0;
}

.courses h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 10px;
}

.card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--teal);
}

.card-icon {
  font-family: 'Syne', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--teal);
  margin-bottom: 14px;
}

/* Headings */
.card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 10px;
}

/* Paragraphs */
.card p {
  color: var(--muted);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  margin-bottom: 22px;
}

/* Buttons */
.btn-card {
  display: inline-block;
  border: 1.5px solid var(--teal);
  color: var(--teal);
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 22px;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}

.btn-card:hover {
  background-color: var(--teal);
  color: var(--navy);
}

/* ============================================
   REGISTRATION FORM
   ============================================ */
.form-section {
  background-color: var(--navy);
  padding: 80px 0;
}

.form-section h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

/* Form layout */
form {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  margin-top: 10px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

/* Form inputs */
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
  width: 100%;
  background-color: #0d1525;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal);
}

.form-group select option {
  background-color: var(--card);
}

.form-group textarea {
  resize: vertical;
}

/* Radio group */
.radio-group {
  display: flex;
  gap: 24px;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
  color: var(--text);
}

.radio-group input[type="radio"] {
  accent-color: var(--teal);
  width: 16px;
  height: 16px;
}

/* Submit button */
.btn-submit {
  width: 100%;
  padding: 14px;
  background-color: var(--teal);
  color: var(--navy);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: background-color 0.2s, transform 0.15s;
  margin-top: 8px;
}

.btn-submit:hover {
  background-color: var(--teal2);
  transform: translateY(-1px);
}

/* ============================================
   TABLE SECTION — borders + alternate rows
   ============================================ */
.table-section {
  background-color: var(--dark);
  padding: 80px 0;
}

.table-section h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

thead {
  background-color: var(--teal);
}

thead th {
  color: var(--navy);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.8px;
  text-align: left;
  padding: 14px 18px;
  border: 1px solid rgba(255,255,255,0.15);
}

/* Table borders */
tbody td {
  padding: 13px 18px;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
}

/* Alternate row colors */
tbody tr:nth-child(odd) {
  background-color: var(--card);
}

tbody tr:nth-child(even) {
  background-color: #111827;
}

tbody tr:hover {
  background-color: rgba(14,165,233,0.07);
}

/* ============================================
   IMAGE & LINK SECTION
   ============================================ */
.media-section {
  background-color: var(--navy);
  padding: 80px 0;
  text-align: center;
}

.media-section h2 {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

/* Image */
.media-img {
  width: 100%;
  max-width: 800px;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 24px auto 28px;
  display: block;
}

/* Paragraphs */
.media-section p {
  color: var(--muted);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  margin-bottom: 16px;
}

/* External link */
.ext-link {
  display: inline-block;
  color: var(--teal);
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.ext-link:hover {
  color: var(--teal2);
  border-bottom-color: var(--teal2);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background-color: #090e1a;
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
  .navbar {
    flex-direction: column;
    gap: 14px;
    padding: 16px 20px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  form {
    padding: 24px 20px;
  }

  table {
    font-size: 12px;
  }

  thead th,
  tbody td {
    padding: 10px 12px;
  }
}