/* ============================================================
   Connor Munz — Personal Landing Page Stylesheet
   Follows STANDARDS.md exactly: no inline styles, no <style> tags
   ============================================================ */

/* ----- CSS Custom Properties ----- */
:root {
  --color-bg: #F8F9FA;
  --color-text: #212529;
  --color-teal: #0D6E6E;
  --color-teal-dark: #0A5858;
  --color-navy: #0A2342;
  --color-secondary-bg: #E9ECEF;
  --color-white: #FFFFFF;

  --font-family: 'Inter', sans-serif;
  --body-size: 16px;
  --line-height: 1.6;

  --section-padding: 60px;
  --content-max-width: 800px;
}

/* ----- Base Reset & Typography ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--body-size);
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0;
}

/* ----- Content Width Wrapper ----- */
.content-wrap {
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ----- Headings ----- */
h1 {
  font-family: var(--font-family);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

h2 {
  font-family: var(--font-family);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-teal);
  margin-bottom: 1.5rem;
}

h3 {
  font-family: var(--font-family);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.35rem;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
#main-nav {
  background-color: var(--color-navy);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

#main-nav .container-nav {
  max-width: var(--content-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

#main-nav .navbar-brand {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  letter-spacing: 0.01em;
}

#main-nav .navbar-brand:hover,
#main-nav .navbar-brand:focus {
  color: var(--color-teal);
}

#main-nav .nav-link {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  transition: color 0.2s ease;
}

#main-nav .nav-link:hover,
#main-nav .nav-link:focus {
  color: var(--color-teal);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
  background-color: var(--color-navy);
  padding: 80px 0 70px;
  color: var(--color-white);
}

.headshot {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-white);
  display: block;
  margin: 0 auto 1.5rem;
}

.hero-tagline {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--color-white);
  max-width: 600px;
  margin: 0 auto 2rem;
  opacity: 0.92;
}

/* CTA Button */
.btn-cta {
  background-color: var(--color-teal);
  color: var(--color-white);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.65rem 1.75rem;
  border-radius: 6px;
  border: none;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.2s ease;
}

.btn-cta:hover,
.btn-cta:focus {
  background-color: var(--color-teal-dark);
  color: var(--color-white);
}

/* ============================================================
   SECTION BACKGROUNDS — alternating
   ============================================================ */
.section-white {
  background-color: var(--color-white);
  padding: var(--section-padding) 0;
}

.section-secondary {
  background-color: var(--color-secondary-bg);
  padding: var(--section-padding) 0;
}

/* ============================================================
   ABOUT
   ============================================================ */
#about p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skill-group {
  margin-bottom: 1.75rem;
}

.skill-group h3 {
  margin-bottom: 0.75rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.3rem 0.85rem;
  border-radius: 50px;
  line-height: 1.4;
}

/* Programming: teal background, white text */
.tag-programming {
  background-color: var(--color-teal);
  color: var(--color-white);
}

/* Techniques: navy background, white text */
.tag-technique {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* Tools: light background, dark text */
.tag-tool {
  background-color: var(--color-secondary-bg);
  color: var(--color-text);
  border: 1px solid #ced4da;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.project-card {
  background-color: var(--color-white);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 12px rgba(10, 35, 66, 0.09);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.project-card h3 {
  margin-bottom: 0;
}

.project-type {
  font-size: 0.8rem;
  font-weight: 500;
  color: #6c757d;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.25rem 0;
}

.project-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  background-color: var(--color-secondary-bg);
  color: var(--color-navy);
  border: 1px solid #ced4da;
}

.project-desc {
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0;
  line-height: 1.6;
}

.project-placeholder {
  background-color: var(--color-bg);
  border: 2px dashed #ced4da;
  box-shadow: none;
}

.project-placeholder h3 {
  color: #adb5bd;
}

.placeholder-text {
  color: #adb5bd;
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.experience-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid #dee2e6;
}

.experience-item:last-child {
  border-bottom: none;
}

.exp-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.exp-company {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-teal);
  margin: 0.15rem 0 0;
}

.exp-date {
  font-size: 0.82rem;
  font-weight: 500;
  color: #6c757d;
  white-space: nowrap;
  padding-top: 0.15rem;
  flex-shrink: 0;
}

.exp-desc {
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0;
  line-height: 1.6;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-prompt {
  color: var(--color-text);
  margin-bottom: 2rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-teal);
  text-decoration: none;
  padding: 0.55rem 1.25rem;
  border: 2px solid var(--color-teal);
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.contact-link:hover,
.contact-link:focus {
  background-color: var(--color-teal);
  color: var(--color-white);
  text-decoration: none;
}

.contact-link .bi {
  font-size: 1.1rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 1.5rem 0;
}

.site-footer p {
  margin: 0;
  font-size: 0.85rem;
  opacity: 0.75;
}

/* ============================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================ */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  .hero-section {
    padding: 60px 0 50px;
  }

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

  .exp-header {
    flex-direction: column;
    gap: 0.25rem;
  }

  .exp-date {
    order: -1;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  .headshot {
    width: 130px;
    height: 130px;
  }

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