/* ==========================================================================
   PentaWorks — Anthony Penta Portfolio
   Mobile-first responsive stylesheet
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  --color-primary: #C4280E;
  --color-primary-dark: #a02209;
  --color-text: #424242;
  --color-text-light: #6a6a6a;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-bg: #ffffff;
  --color-bg-light: #f0f0f0;

  --font-family: 'Lato', sans-serif;
  --max-width: 1120px;
  --nav-height: 56px;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-links a:focus-visible {
  outline-color: var(--color-white);
}

ul, ol {
  list-style-position: inside;
}

/* --- Skip Link (accessibility) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-sm);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  z-index: 1000;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: var(--spacing-xs);
}

/* --- Site Header / Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-primary);
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-sm);
}

.nav-brand {
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.nav-brand:hover,
.nav-brand:focus {
  opacity: 0.9;
}

.nav-links {
  display: none;
  flex-direction: column;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  padding: var(--spacing-sm) 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

.nav-links a {
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  padding: 0.75rem var(--spacing-sm);
  transition: opacity 0.2s;
}

.nav-links a:hover,
.nav-links a:focus {
  opacity: 0.85;
}

.nav-links a.active {
  font-weight: 700;
}

.nav-links .nav-linkedin {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem var(--spacing-sm);
}

.nav-links .nav-linkedin img {
  height: 24px;
  width: auto;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  width: 40px;
  height: 40px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  position: relative;
  transition: background-color 0.2s;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  transition: transform 0.2s;
}

.nav-toggle span::before {
  top: -7px;
}

.nav-toggle span::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] span {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* --- Hero Banner --- */
.hero {
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: bottom right;
  background-repeat: no-repeat;
  padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-xl);
  position: relative;
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.hero-title {
  color: var(--color-white);
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  color: var(--color-white);
  font-size: clamp(1.0625rem, 2.2vw, 1.5rem);
  font-weight: 400;
  line-height: 1.5;
  max-width: 50ch;
}

/* --- Separator (replaces spacer1.jpg) --- */
.separator {
  height: 6px;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    #8B1A06 40%,
    #2a0a4a 70%,
    #1a1a6e 100%
  );
}

/* --- Section --- */
.section {
  padding: var(--spacing-md) var(--spacing-sm);
}

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

.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2.625rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
}

.section-description {
  text-align: center;
  max-width: 70ch;
  margin: 0 auto var(--spacing-md);
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.7;
}

/* --- Awards Row --- */
.awards-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.award-item {
  text-align: center;
}

.award-item img {
  margin: 0 auto;
  max-width: 120px;
  height: auto;
}

.award-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xs);
}

/* --- Case Studies Grid (homepage circular thumbnails) --- */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.case-study-card {
  text-align: center;
}

.case-study-card a {
  display: block;
  transition: transform 0.2s;
}

.case-study-card a:hover,
.case-study-card a:focus {
  transform: scale(1.03);
}

.case-study-card img {
  width: 200px;
  max-width: 100%;
  margin: 0 auto var(--spacing-xs);
}

.case-study-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
  line-height: 1.2;
  margin-bottom: 0.125rem;
}

.case-study-card p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-top: 0;
  line-height: 1.3;
}

/* --- Partner / Trusted By Logos --- */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md) var(--spacing-lg);
  padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.partner-logos img {
  height: 50px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

/* --- Thumbnail Grid (homepage video + photo previews) --- */
.thumbnail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  max-width: var(--max-width);
  margin: 0 auto;
}

.thumbnail-grid a {
  display: block;
  overflow: hidden;
  border-radius: 4px;
}

.thumbnail-grid img {
  width: 100%;
  height: auto;
  transition: transform 0.3s;
}

.thumbnail-grid a:hover img,
.thumbnail-grid a:focus img {
  transform: scale(1.05);
}

/* --- Red Label (category heading) --- */
.red-label {
  border-left: 6px solid var(--color-primary);
  color: var(--color-black);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.375rem 0 0.375rem 0.75rem;
  margin: 0 auto var(--spacing-md);
  max-width: var(--max-width);
}

/* --- Video Grid --- */
.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
}

.video-item {
  margin-bottom: var(--spacing-sm);
}

.video-item h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--color-black);
}

.video-item .credits {
  font-size: 0.6875rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

/* --- Responsive Video Wrapper (16:9) --- */
.responsive-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.responsive-video iframe,
.responsive-video video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Full-width featured video */
.responsive-video--featured {
  max-width: var(--max-width);
  margin: 0 auto var(--spacing-sm);
}

/* --- Photo Grid --- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  max-width: var(--max-width);
  margin: 0 auto;
}

.photo-grid a {
  display: block;
  overflow: hidden;
  border-radius: 4px;
}

.photo-grid img {
  width: 100%;
  height: auto;
  transition: transform 0.3s;
}

.photo-grid a:hover img,
.photo-grid a:focus img {
  transform: scale(1.03);
}

/* --- Content Area (case study pages) --- */
.content-area {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-sm);
}

.content-area h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.content-area h2:first-child {
  margin-top: 0;
}

.content-area p {
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
}

.content-area ul {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.25rem;
  list-style-position: outside;
}

.content-area ul li {
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.content-area .client-logo {
  float: right;
  margin: 0 0 var(--spacing-sm) var(--spacing-md);
  max-width: 200px;
}

.content-area .full-width-image {
  width: 100%;
  margin: var(--spacing-md) 0 var(--spacing-sm);
  border-radius: 4px;
}

.content-area .inline-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.content-area .inline-link:hover {
  color: var(--color-primary-dark);
}

/* --- Contact Page --- */
.contact-illustration {
  text-align: center;
  padding: var(--spacing-md) var(--spacing-sm) var(--spacing-xs);
}

.contact-illustration img {
  max-width: 700px;
  width: 100%;
  margin: 0 auto;
}

.contact-info {
  text-align: center;
  padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-lg);
  font-size: 1.125rem;
  line-height: 2.2;
}

.contact-info a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.contact-info a:hover,
.contact-info a:focus {
  color: var(--color-primary-dark);
}

/* --- Equipment Cart (video page) --- */
.equipment-cart {
  text-align: center;
  padding: var(--spacing-md) var(--spacing-sm);
  max-width: var(--max-width);
  margin: 0 auto;
}

.equipment-cart img {
  max-width: 100%;
  margin: 0 auto var(--spacing-sm);
}

.equipment-cart p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-style: italic;
}

/* --- Site Footer --- */
.site-footer {
  background-color: var(--color-bg-light);
  border-top: 1px solid #e0e0e0;
  padding: var(--spacing-md) var(--spacing-sm);
  text-align: center;
}

.footer-contact {
  margin-bottom: var(--spacing-sm);
}

.footer-contact a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.footer-contact a:hover,
.footer-contact a:focus {
  color: var(--color-primary-dark);
}

.footer-contact span {
  margin: 0 0.75rem;
  color: var(--color-text-light);
}

.footer-linkedin {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

.footer-linkedin img {
  height: 36px;
  width: auto;
  margin: 0 auto;
  transition: opacity 0.2s;
}

.footer-linkedin:hover img {
  opacity: 0.8;
}

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

/* ==========================================================================
   Tablet Breakpoint (768px+)
   ========================================================================== */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav-links {
    display: flex;
    flex-direction: row;
    position: static;
    background: none;
    padding: 0;
    box-shadow: none;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-links a {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  .hero {
    padding: var(--spacing-xl) var(--spacing-md) 5rem;
  }

  .section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .award-item img {
    max-width: 150px;
  }

  .case-studies-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .thumbnail-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .photo-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .content-area {
    padding: var(--spacing-xl) var(--spacing-sm);
  }

}

/* ==========================================================================
   Desktop Breakpoint (1024px+)
   ========================================================================== */
@media (min-width: 1024px) {
  .nav-brand {
    font-size: 1.5rem;
  }

  .nav-links a {
    font-size: 0.9375rem;
    padding: 0.5rem 1rem;
  }

  .hero {
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: 320px;
    display: flex;
    align-items: center;
  }

  .award-item img {
    max-width: none;
  }

  .case-studies-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .thumbnail-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .section {
    padding: var(--spacing-lg) var(--spacing-lg);
  }

  .content-area {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
}

/* ==========================================================================
   Wide Viewport Breakpoint (1440px+)
   ========================================================================== */
@media (min-width: 1440px) {
  .hero {
    padding-bottom: 6rem;
    min-height: 400px;
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}