/* ===== CSS Variables ===== */
:root {
  --primary: #03202F;
  --primary-light: #0a3a52;
  --accent: #EB6E1F;
  --accent-dark: #c85b10;
  --navy: #002D62;
  --light: #F5F7FA;
  --white: #FFFFFF;
  --text: #1C1C2E;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --shadow: 0 4px 24px rgba(3, 32, 47, 0.10);
  --shadow-sm: 0 2px 8px rgba(3, 32, 47, 0.08);
  --radius: 10px;
  --transition: 0.25s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--light);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

/* ===== Navigation ===== */
.navbar {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  font-family: 'Raleway', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.03em;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 0.25rem;
}

.nav-links a {
  color: rgba(255,255,255,0.80);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(235, 110, 31, 0.15);
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--navy) 60%, #004080 100%);
  color: var(--white);
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-inner {
  position: relative;
  max-width: 750px;
  margin: 0 auto;
}

.hero-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  font-weight: 700;
  font-family: 'Raleway', sans-serif;
  color: var(--white);
  margin: 0 auto 1.5rem;
  border: 3px solid rgba(255,255,255,0.2);
}

.hero h1 {
  font-family: 'Raleway', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-bio {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.82);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.75;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--white);
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--transition), transform var(--transition);
  box-shadow: 0 4px 16px rgba(235,110,31,0.35);
}

.hero-cta:hover {
  background: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
}

/* ===== Main Content ===== */
main { flex: 1; max-width: 1100px; margin: 0 auto; width: 100%; padding: 3rem 2rem; }

/* ===== Section Header ===== */
.section-header {
  margin-bottom: 2.5rem;
  text-align: center;
}

.section-header h2 {
  font-family: 'Raleway', sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.section-header p { color: var(--text-muted); max-width: 540px; margin: 0 auto; }

.accent-line {
  width: 48px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin: 0.75rem auto 0;
}

/* ===== Cards ===== */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* ===== Skills Tags ===== */
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

.tag {
  background: rgba(235,110,31,0.10);
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  border: 1px solid rgba(235,110,31,0.20);
}

/* ===== Page Hero (inner pages) ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--navy) 100%);
  color: var(--white);
  padding: 3rem 2rem;
  text-align: center;
}

.page-hero h1 {
  font-family: 'Raleway', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
}

.page-hero p { color: rgba(255,255,255,0.75); margin-top: 0.5rem; }

/* ===== Degree / Timeline Cards ===== */
.degree-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  transition: box-shadow var(--transition), transform var(--transition);
}

.degree-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.degree-school {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.degree-title {
  font-family: 'Raleway', sans-serif;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.degree-field {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.degree-date {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  background: rgba(0,45,98,0.07);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
}

/* ===== Cert Cards ===== */
.cert-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.cert-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.cert-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.4rem;
}

.cert-name {
  font-family: 'Raleway', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.cert-issuer { font-size: 0.88rem; color: var(--text-muted); }
.cert-year { font-size: 0.82rem; font-weight: 600; color: var(--accent); margin-top: 0.35rem; }

/* ===== Resume Page ===== */
.resume-section { margin-bottom: 2.5rem; }

.resume-section h3 {
  font-family: 'Raleway', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.resume-entry { margin-bottom: 1.5rem; }

.resume-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.resume-entry-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.resume-entry-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.resume-entry-org {
  font-size: 0.9rem;
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.resume-entry ul { padding-left: 1.25rem; color: var(--text-muted); font-size: 0.92rem; }
.resume-entry ul li { margin-bottom: 0.3rem; }

.resume-download-bar {
  background: var(--primary);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.resume-download-bar p { color: rgba(255,255,255,0.85); font-size: 0.95rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition), transform var(--transition);
  cursor: pointer;
  border: none;
}

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

/* ===== Footer ===== */
footer {
  background: var(--primary);
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 1.75rem 2rem;
  font-size: 0.875rem;
}

footer span { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 700px) {
  .nav-links { display: none; flex-direction: column; gap: 0; position: absolute; top: 68px; left: 0; right: 0; background: var(--primary); padding: 1rem 0; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.85rem 2rem; border-radius: 0; }
  .nav-toggle { display: flex; }
  .navbar { position: relative; }
  .resume-download-bar { flex-direction: column; text-align: center; }
  .resume-entry-header { flex-direction: column; }
}