/* ============================================
   Steven Bartholomew — Portfolio
   ============================================ */

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

:root {
  --bg: #000;
  --bg-elevated: #0a0a0a;
  --text: #fff;
  --text-secondary: #888;
  --border: rgba(255, 255, 255, 0.1);
  --gutter: 4vw;
  --header-height: 80px;
  --transition: 0.3s ease;
  --transition-slow: 0.6s ease;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 var(--gutter);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transition: background var(--transition);
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.logo-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 3.5px;
  text-transform: uppercase;
  line-height: 1.2;
}

.logo-subtitle {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  line-height: 1.2;
}

/* --- Desktop Nav --- */
.main-nav {
  display: flex;
  gap: 36px;
  align-items: center;
}

.main-nav a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--text);
}

/* --- Header Social --- */
.header-social {
  display: flex;
  gap: 18px;
  align-items: center;
}

.header-social a {
  color: var(--text-secondary);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

.header-social a:hover {
  color: var(--text);
}

.header-social svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* --- Hamburger Menu --- */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 26px;
  height: 18px;
  position: relative;
  z-index: 110;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text);
  position: absolute;
  left: 0;
  transition: all var(--transition);
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-toggle span:nth-child(3) { bottom: 0; }

.menu-toggle.open span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
}

/* --- Mobile Menu Overlay --- */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 105;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.mobile-menu a.active,
.mobile-menu a:hover {
  color: var(--text);
}

.mobile-menu .mobile-social {
  display: flex;
  gap: 24px;
  margin-top: 20px;
}

.mobile-menu .mobile-social a {
  display: flex;
  align-items: center;
}

.mobile-menu .mobile-social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* --- Main Content --- */
main {
  padding-top: var(--header-height);
  min-height: 100vh;
}

/* --- Portfolio Grid --- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 8px var(--gutter);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--bg-elevated);
}

.portfolio-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), opacity var(--transition);
}

.portfolio-item:hover img {
  transform: scale(1.04);
}

.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-item:hover .portfolio-item__overlay {
  opacity: 1;
}

.portfolio-item__overlay h3 {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  text-align: center;
  padding: 20px;
  line-height: 1.6;
}

/* --- Project Detail --- */
.project {
  margin: 0 auto;
  padding: 0 0 60px;
}

.project__video {
  width: 100vw;
  height: 100vh;
  position: relative;
  background: #000;
}

.project__video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.project__info {
  text-align: center;
  padding: 48px var(--gutter) 32px;
  max-width: 900px;
  margin: 0 auto;
}

.project__info h1 {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.project__description {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 16px;
}

.project__credits {
  font-size: 12px;
  font-weight: 300;
  line-height: 2;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

.project__private {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background: #111;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* --- Project Navigation --- */
.project__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px var(--gutter);
  border-top: 1px solid var(--border);
  margin-top: 32px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.project__nav-link {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
  max-width: 40%;
}

.project__nav-link:hover {
  color: var(--text);
}

.project__nav-link--next {
  text-align: right;
  margin-left: auto;
}

/* --- Contact Page --- */
.contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height));
  text-align: center;
  padding: var(--gutter);
}

.contact h1 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.contact__role {
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 2.5px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 48px;
}

.contact__divider {
  width: 50px;
  height: 1px;
  background: var(--border);
  margin: 0 auto 48px;
}

.contact__info {
  margin-bottom: 36px;
}

.contact__info a,
.contact__info p {
  display: block;
  font-size: 13px;
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: 10px;
  letter-spacing: 1px;
  transition: color var(--transition);
}

.contact__info a:hover {
  color: var(--text);
}

.contact__cta {
  display: inline-block;
  padding: 14px 36px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: all var(--transition);
  margin-bottom: 48px;
}

.contact__cta:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.contact__social {
  display: flex;
  gap: 24px;
  align-items: center;
}

.contact__social a {
  color: var(--text-secondary);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

.contact__social a:hover {
  color: var(--text);
}

.contact__social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* --- Footer --- */
.site-footer {
  padding: 48px var(--gutter);
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.footer-social a {
  color: var(--text-secondary);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

.footer-social a:hover {
  color: var(--text);
}

.footer-social svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1100px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 64px;
    --gutter: 5vw;
  }

  .main-nav,
  .header-social {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .mobile-menu {
    display: flex;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 6px var(--gutter);
  }

  .project__video {
    height: 56.25vw;
  }

  .project__info h1 {
    font-size: 14px;
    letter-spacing: 2px;
  }

  .contact h1 {
    font-size: 18px;
    letter-spacing: 3px;
  }
}

@media (max-width: 480px) {
  :root {
    --header-height: 56px;
    --gutter: 6vw;
  }

  .logo-name {
    font-size: 12px;
    letter-spacing: 2.5px;
  }

  .logo-subtitle {
    font-size: 8px;
    letter-spacing: 3px;
  }

  .portfolio-item__overlay h3 {
    font-size: 11px;
    letter-spacing: 1.5px;
  }

  .project {
    padding: 20px var(--gutter) 40px;
  }

  .project__nav-link {
    font-size: 10px;
  }
}