/* ============================================
   Alberto Pérez — Director de Fotografía
   Portfolio CSS — Single file, no frameworks
   ============================================ */

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

::selection {
  background: #c4a35a44;
  color: #fff;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #0A0A0A;
  color: #E8E4DE;
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: 14px;
  line-height: 1.8;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* --- CSS Custom Properties --- */
:root {
  --bg: #0A0A0A;
  --text-primary: #E8E4DE;
  --text-secondary: #8A857D;
  --text-muted: #5A5650;
  --accent: #C4A35A;
  --border: #1F1F1F;
  --border-warm: #2A2825;
  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'DM Sans', sans-serif;
}

/* --- Keyframe Animations --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes heroReveal {
  from { opacity: 0; transform: scale(1.05); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes lineGrow {
  from { width: 0; }
  to { width: 60px; }
}

@keyframes maskReveal {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0% 0 0); }
}

/* --- Scroll Reveal (JS-driven) --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, rgba(10, 10, 10, 0.95), transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.site-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.site-logo__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 3px;
}

.site-logo__role {
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 4px;
  color: var(--accent);
  text-transform: uppercase;
  margin-top: 2px;
}

.desktop-nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 0;
  transition: color 0.4s ease;
  position: relative;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  animation: lineGrow 0.4s ease forwards;
}

/* --- Mobile Menu Button --- */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu-btn.open span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

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

.mobile-menu-btn.open span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* --- Mobile Nav Overlay --- */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 10, 10, 0.97);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav .nav-link {
  font-size: 18px;
  letter-spacing: 4px;
}

/* --- Main Content --- */
main {
  padding-top: 80px;
  min-height: 100vh;
}

/* --- Hero Section (Home) --- */
.hero {
  height: 70vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: heroReveal 1.2s ease;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35) contrast(1.1);
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 700px;
  padding: 0 32px;
}

.hero__accent-line {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto 24px;
  animation: lineGrow 1s ease 0.5s both;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 300;
  letter-spacing: 6px;
  line-height: 1.2;
  color: var(--text-primary);
  animation: fadeUp 0.8s ease 0.3s both;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--text-secondary);
  margin-top: 20px;
  text-transform: uppercase;
  animation: fadeUp 0.8s ease 0.6s both;
}

/* --- Project Grid --- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 3px;
  padding: 3px 3px 60px;
}

.project-card {
  cursor: pointer;
  overflow: hidden;
  position: relative;
  aspect-ratio: 16 / 10;
  transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
  text-decoration: none;
  display: block;
}

.project-card:hover {
  transform: scale(0.98);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card:hover .project-card__img {
  transform: scale(1.06);
  filter: brightness(0.7);
}

.project-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1), filter 0.5s ease;
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.4s ease;
  background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.8));
}

.project-card__category {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 400;
  color: #fff;
  margin-top: 4px;
  line-height: 1.2;
}

/* --- Project Detail --- */
.project-detail {
  padding: 40px 32px 80px;
  max-width: 1100px;
  margin: 0 auto;
  animation: fadeIn 0.5s ease;
}

.detail-back {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.detail-back:hover {
  color: var(--text-primary);
}

.detail-back__arrow {
  font-size: 18px;
}

.detail-hero {
  margin-top: 40px;
}

.detail-hero img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  animation: maskReveal 0.8s ease both;
}

.detail-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 48px;
}

.detail-meta__category {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
}

.detail-meta__title {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 300;
  color: var(--text-primary);
  margin-top: 8px;
  line-height: 1.2;
}

.detail-meta__description {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 24px;
}

.detail-meta__description p + p {
  margin-top: 16px;
}

/* Credits table */
.detail-credits {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-top: 8px;
}

.credit-row {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}

.credit-row__label {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}

.credit-row__value {
  font-family: var(--font-body);
  font-size: 14px;
  color: #c8c3ba;
}

/* Detail gallery */
.detail-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
  margin-top: 48px;
}

.detail-gallery img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* Vimeo embed */
.detail-vimeo {
  margin-top: 48px;
  aspect-ratio: 16 / 9;
  width: 100%;
}

.detail-vimeo iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Stills Page --- */
.stills-page {
  padding: 40px 3px 60px;
  animation: fadeIn 0.6s ease;
}

.stills-page__title {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 300;
  letter-spacing: 4px;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 40px;
}

.stills-masonry {
  columns: 3 300px;
  column-gap: 3px;
}

.still-item {
  overflow: hidden;
  cursor: pointer;
  margin-bottom: 3px;
  break-inside: avoid;
}

.still-item img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease, filter 0.4s ease;
}

.still-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.85);
}

/* --- About Page --- */
.about-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 60px 32px 80px;
  animation: fadeIn 0.6s ease;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.about-portrait {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  animation: maskReveal 1s ease both;
}

.about-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content {
  padding-top: 20px;
}

.about-accent-line {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin-bottom: 24px;
  animation: lineGrow 0.6s ease 0.3s both;
}

.about-title {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 300;
  color: var(--text-primary);
  line-height: 1.3;
  animation: fadeUp 0.6s ease 0.2s both;
}

.about-bio {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 2;
  margin-top: 24px;
  animation: fadeUp 0.6s ease 0.4s both;
}

.about-bio p + p {
  margin-top: 16px;
}

.about-equipment {
  margin-top: 40px;
  animation: fadeUp 0.6s ease 0.6s both;
}

.about-equipment__label {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 16px;
}

.about-equipment__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.equipment-tag {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--text-muted);
  padding: 6px 14px;
  border: 1px solid var(--border-warm);
  border-radius: 2px;
}

.about-social {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  animation: fadeUp 0.6s ease 0.8s both;
}

.social-link {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: color 0.3s, border-color 0.3s;
  text-decoration: none;
}

.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* --- Contact Page --- */
.contact-page {
  max-width: 600px;
  margin: 0 auto;
  padding: 120px 32px 80px;
  text-align: center;
  animation: fadeIn 0.8s ease;
}

.contact-accent-line {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto 32px;
  animation: lineGrow 0.6s ease 0.3s both;
}

.contact-title {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 3px;
  animation: fadeUp 0.6s ease 0.2s both;
}

.contact-text {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 20px;
  animation: fadeUp 0.6s ease 0.4s both;
}

.contact-email {
  display: inline-block;
  margin-top: 40px;
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 2px;
  border-bottom: 1px solid #c4a35a33;
  padding-bottom: 4px;
  transition: border-color 0.3s;
  animation: fadeUp 0.6s ease 0.6s both;
}

.contact-email:hover {
  border-color: var(--accent);
}

.contact-social {
  margin-top: 48px;
  display: flex;
  justify-content: center;
  gap: 32px;
  animation: fadeUp 0.6s ease 0.8s both;
}

.contact-social .social-link {
  font-size: 11px;
  letter-spacing: 2.5px;
  border-bottom: none;
}

.contact-social .social-link:hover {
  color: var(--accent);
}

.contact-footer-note {
  margin-top: 80px;
  padding: 32px 0;
  border-top: 1px solid #1a1917;
  animation: fadeUp 0.6s ease 1s both;
}

.contact-footer-note p {
  font-family: var(--font-body);
  font-size: 11px;
  color: #3a3835;
  letter-spacing: 1px;
}

/* --- Footer --- */
.site-footer {
  padding: 24px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #141310;
}

.site-footer span {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 2px;
  color: #2a2825;
}

/* --- 404 Page --- */
.page-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: 32px;
}

.page-404 h1 {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 4px;
}

.page-404 p {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 16px;
}

.page-404 a {
  display: inline-block;
  margin-top: 32px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: opacity 0.3s;
}

.page-404 a:hover {
  opacity: 0.7;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }

  .desktop-nav {
    display: none;
  }

  .hero__title {
    font-size: 32px;
    letter-spacing: 3px;
  }

  .hero__subtitle {
    font-size: 11px;
  }

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

  .detail-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .detail-gallery {
    grid-template-columns: 1fr;
  }

  .detail-meta__title {
    font-size: 32px;
  }

  .stills-masonry {
    columns: 1;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-portrait {
    max-width: 400px;
  }

  .about-title {
    font-size: 30px;
  }

  .contact-title {
    font-size: 32px;
  }

  .contact-email {
    font-size: 22px;
  }

  .contact-social {
    gap: 20px;
  }

  .site-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (min-width: 769px) {
  .mobile-nav {
    display: none !important;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: 16px 20px;
  }

  .hero {
    height: 60vh;
  }

  .hero__title {
    font-size: 26px;
    letter-spacing: 2px;
  }

  .project-detail {
    padding: 24px 20px 60px;
  }

  .about-page {
    padding: 40px 20px 60px;
  }

  .contact-page {
    padding: 80px 20px 60px;
  }
}