/* ==========================================================================
   Jonathan Carling — Professional Landing Page
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  --color-navy: #1a2b4a;
  --color-navy-light: #243656;
  --color-blue: #0066cc;
  --color-blue-light: #3385d6;
  --color-blue-pale: #e8f2fc;
  --color-accent: #00a3e0;
  --color-text: #2d3748;
  --color-text-muted: #64748b;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-border: #e2e8f0;
  --color-success: #059669;
  --color-success-bg: #ecfdf5;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1rem;
  --line-height: 1.6;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(26, 43, 74, 0.08);
  --shadow-lg: 0 8px 30px rgba(26, 43, 74, 0.12);

  --header-height: 64px;
  --container-max: 1100px;
  --section-padding: 5rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-blue-light);
}

ul {
  list-style: none;
}

/* --- Accessibility --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-navy);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding) 0;
}

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

.section-heading {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.section-intro {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
}

.subsection-heading {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 1.25rem;
}

/* --- Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-navy);
  letter-spacing: -0.03em;
}

.nav-menu {
  display: flex;
  gap: 0.25rem;
}

.nav-menu a {
  display: block;
  padding: 0.5rem 0.875rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-navy);
  background: var(--color-bg-alt);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Hero --- */
.hero {
  padding: 4rem 0 5rem;
  background: linear-gradient(160deg, var(--color-bg) 0%, var(--color-blue-pale) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.hero-tagline strong {
  color: var(--color-navy);
  font-weight: 600;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: var(--color-navy);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius-full);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-blue-light);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-navy);
  color: #fff;
}

.btn-secondary:hover {
  background: var(--color-navy-light);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-third {
  background: var(--color-blue);
  color: #fff;
}

.btn-third:hover {
  background: var(--color-blue-light);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-fourth {
  background: var(--color-navy);
  color: #fff;
}

.btn-fourth:hover {
  background: var(--color-navy-light);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.hero-photo {
  position: relative;
}

.hero-photo img {
  width: 320px;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-photo::after {
  content: '';
  position: absolute;
  inset: -8px;
  border: 2px solid var(--color-blue);
  border-radius: calc(var(--radius-lg) + 4px);
  opacity: 0.2;
  z-index: -1;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.highlight-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.highlight-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-blue);
  line-height: 1;
  margin-bottom: 0.375rem;
}

.highlight-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- Certifications --- */
.cert-group {
  margin-bottom: 2.5rem;
}

.cert-group-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.cert-vendor-logo {
  flex-shrink: 0;
}

.cert-group-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-navy);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
}

.badge-active {
  background: var(--color-success-bg);
  color: var(--color-success);
  display: none;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.cert-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.cert-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-blue-light);
}

.cert-card-featured {
  border-left: 3px solid var(--color-blue);
}

.cert-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.cert-level {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.cert-level-azure {
  background: var(--color-blue-pale);
  color: var(--color-blue);
}

.cert-level-github {
  background: #f3f4f6;
  color: #374151;
}

.cert-status {
  font-size: 0.7rem;
  font-weight: 600;
}

.cert-status-active {
  color: var(--color-success);
}

.cert-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.375rem;
  line-height: 1.3;
}

.cert-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.cert-legacy {
  margin-top: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.cert-legacy summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  background: var(--color-bg);
  transition: background 0.2s;
  user-select: none;
}

.cert-legacy summary:hover {
  background: var(--color-bg-alt);
}

.cert-legacy[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.cert-grid-legacy {
  padding: 1.25rem;
  background: var(--color-bg);
}

.cert-card-legacy {
  opacity: 0.85;
}

/* --- Timeline / Experience --- */
.timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding-left: 0;
}

.timeline::before {
  display: none;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
  padding-left: 0;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-content {
  position: relative;
}

.company-brand {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.company-brand > div {
  flex: 1;
  min-width: 0;
}

.company-logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
  margin-top: 0.08rem;
}

.timeline-company-header {
  margin-bottom: 1rem;
}

.timeline-company-name {
  font-size: clamp(1.1rem, 2vw, 1.55rem);
  font-weight: 700;
  color: var(--color-navy);
  margin: 0 0 0.2rem;
  line-height: 1.3;
}

.timeline-company-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0;
}

.timeline-role-list {
  position: relative;
  margin: 0 0 0 64px;
  padding-left: 1rem;
}

.timeline-role-item {
  position: relative;
  padding-left: 1rem;
  margin-top: 1.25rem;
}

.timeline-role-item:first-child {
  margin-top: 0;
}

.timeline-role-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  background: var(--color-blue);
  border-radius: 50%;
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-blue);
}

.timeline-role-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.timeline-role-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin: 0;
}

.timeline-role-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
  margin-left: auto;
}

.timeline-role-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

.timeline-marker,
.timeline-header,
.timeline-role,
.timeline-company,
.timeline-date,
.timeline-desc {
  display: none;
}

.experience-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

/* --- Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.skill-category {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.skill-category-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-blue-pale);
}

.skill-list li {
  position: relative;
  padding: 0.3rem 0 0.3rem 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.skill-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-blue);
  border-radius: 50%;
}

/* --- Achievements --- */
.achievements-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.award-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.award-year {
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-blue);
  background: var(--color-blue-pale);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  min-width: 3rem;
  text-align: center;
}

.award-item strong {
  display: block;
  font-size: 0.95rem;
  color: var(--color-navy);
  margin-bottom: 0.15rem;
}

.award-org {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.education-card,
.community-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.education-degree,
.community-role {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.25rem;
}

.education-school {
  font-size: 0.9rem;
  color: var(--color-blue);
  font-weight: 500;
}

.education-detail,
.community-detail {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.education-note,
.community-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

/* --- Connect --- */
.section-connect {
  background: var(--color-navy);
  color: #fff;
}

.section-connect .section-heading {
  color: #fff;
}

.section-connect .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

.section-connect .section-intro a {
  color: var(--color-accent);
}

.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.connect-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  padding: 2rem 1.5rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: #fff;
  transition: background 0.2s, transform 0.15s;
}

.connect-card:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  transform: translateY(-2px);
}

.connect-name {
  font-weight: 600;
  font-size: 1.05rem;
}

.connect-handle {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}

/* --- Footer --- */
.site-footer {
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-tagline {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-badges,
  .hero-links {
    justify-content: center;
  }

  .hero-photo {
    order: -1;
  }

  .hero-photo img {
    width: 240px;
    height: 240px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-highlights {
    grid-template-columns: repeat(4, 1fr);
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .company-brand {
    align-items: flex-start;
  }

  .timeline-role-list {
    margin-left: 0;
    padding-left: 1rem;
  }

  .timeline-role-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
  }

  .timeline-role-date {
    margin-left: 0;
    white-space: normal;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 3.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    padding: 0.75rem 1rem;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .about-highlights {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 480px) {
  .hero-badges {
    flex-direction: column;
    align-items: center;
  }

  .hero-links {
    flex-direction: column;
    width: 100%;
  }

  .hero-links .btn {
    justify-content: center;
    width: 100%;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .about-highlights {
    grid-template-columns: 1fr 1fr;
  }
}

/* --- Animations --- */
@media (prefers-reduced-motion: no-preference) {
  .cert-card,
  .skill-category,
  .connect-card,
  .highlight-card {
    animation: fadeInUp 0.5s ease both;
  }

  .cert-card:nth-child(2) { animation-delay: 0.05s; }
  .cert-card:nth-child(3) { animation-delay: 0.1s; }
  .cert-card:nth-child(4) { animation-delay: 0.15s; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}