/* ==========================================================================
   Lukas Burgos — Portafolio Audiovisual
   Tipografía: Helvetica Neue — mayúscula ajustada para títulos/labels,
   variante en minúscula y peso liviano para descripciones.
   Paleta: blanco / negro, beige como único acento y usado con moderación.
   ========================================================================== */

@font-face {
  font-family: 'TheSignature';
  src: url('../fonts/Thesignature.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #050505;
  --bg-raised: #0f0f0f;
  --fg: #f2f0ec;
  --fg-dim: #969390;
  --fg-faint: #5c5a57;
  --beige: #cabfa9;
  --line: #201f1d;

  --font: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-signature: 'TheSignature', 'Caveat', cursive;
  --signature-color: #b4372c;
  --signature-color-bright: #e0654f;

  --tight: -0.03em;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* film grain + vignette — cinematic texture across the whole site */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.6s steps(4) infinite;
}

@keyframes grain {
  0%   { transform: translate(0,0); }
  25%  { transform: translate(-1%,1%); }
  50%  { transform: translate(1%,-1%); }
  75%  { transform: translate(-1%,-1%); }
  100% { transform: translate(0,0); }
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 998;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(0,0,0,0.55) 100%);
}

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

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

.eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* ---------------------------------------------------------------- nav */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease;
}

.nav.is-scrolled {
  background: rgba(5, 5, 5, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav__mark {
  font-family: var(--font-signature);
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--signature-color-bright);
  line-height: 1;
  text-shadow: 0 1px 12px rgba(224,101,79,0.35);
}

.nav__links {
  display: flex;
  gap: clamp(1.4rem, 3vw, 2.6rem);
  align-items: center;
}

.nav__links a {
  position: relative;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--fg-dim);
  transition: color 0.25s ease;
}

.nav__links a:hover,
.nav__links a.is-active { color: var(--fg); }

/* -------- luxury underline hover, shared by nav / contact / back-link -------- */

.nav__links a::after,
.about__contact-item a::after,
.back-link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s cubic-bezier(.16,.84,.44,1);
}

.nav__links a:hover::after,
.nav__links a.is-active::after,
.about__contact-item a:hover::after,
.back-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__social {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav__social a {
  display: flex;
  color: var(--fg-dim);
  transition: color 0.25s ease, transform 0.25s ease;
}

.nav__social a:hover { color: var(--fg); transform: scale(1.08); }

.nav__social svg { width: 17px; height: 17px; }

/* ---------------------------------------------------------------- hero */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--bg);
}

.hero__bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg-scrim {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(5,5,5,0.02) 25%, rgba(5,5,5,0.15) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  will-change: opacity, transform;
}

@keyframes heroReveal {
  from { opacity: 0; transform: translateY(26px); filter: blur(10px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}

@keyframes heroRevealCentered {
  from { opacity: 0; transform: translateX(-50%) translateY(14px); filter: blur(6px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); filter: blur(0); }
}

.hero__signature {
  font-family: var(--font-signature);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 5.8rem);
  line-height: 1;
  margin: 0;
  color: var(--signature-color);
  text-shadow: 0 6px 40px rgba(0,0,0,0.65), 0 0 80px rgba(180,55,44,0.18);
  animation: heroReveal 1.6s cubic-bezier(.16,.84,.44,1) both;
  animation-delay: 0.25s;
}

.hero__name {
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(2.2rem, 6.5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: var(--tight);
  margin: 0;
  color: var(--fg);
}

.hero__role {
  margin-top: 1.3rem;
  font-size: clamp(0.78rem, 1.3vw, 0.95rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  color: var(--fg-dim);
  animation: heroReveal 1.6s cubic-bezier(.16,.84,.44,1) both;
  animation-delay: 0.6s;
}

.hero__scroll {
  position: absolute;
  z-index: 1;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-faint);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  transition: color 0.25s ease, opacity 0.25s ease;
  animation: heroRevealCentered 1.4s cubic-bezier(.16,.84,.44,1) both;
  animation-delay: 1s;
}

.hero__scroll:hover { color: var(--fg-dim); }

.hero__scroll::after {
  content: '';
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--fg-faint), transparent);
  animation: scrollpulse 2.2s ease-in-out infinite;
}

@keyframes scrollpulse {
  0%, 100% { opacity: 0.25; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* ---------------------------------------------------------------- grid */

.work {
  padding: 2.5rem 0 8rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--line);
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  gap: clamp(2px, 0.4vw, 6px);
}

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

.card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.9s cubic-bezier(.16,.84,.44,1), filter 0.6s ease;
  filter: grayscale(0) brightness(0.86);
}

.card:hover .card__bg {
  transform: scale(1.03);
  filter: grayscale(1) contrast(1.08) brightness(0.62);
}

.card__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,0.8) 100%);
}

.card__play {
  position: absolute;
  top: 1rem;
  right: 1.1rem;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(242,240,236,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.card:hover .card__play { opacity: 1; transform: scale(1); }

.card__play svg { width: 9px; height: 9px; fill: var(--fg); margin-left: 1px; }

.card__meta {
  position: absolute;
  left: 1.1rem;
  right: 1.1rem;
  bottom: 1rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.card:hover .card__meta { opacity: 1; transform: translateY(0); }

.card__title {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tight);
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  line-height: 1.1;
  margin: 0;
}

.card__soon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.3s ease;
  background: rgba(0,0,0,0.45);
}

.card.is-empty .card__soon { opacity: 1; }
.card.is-empty:hover .card__bg { transform: none; }

/* ---------------------------------------------------------------- footer */
/* minimal — contact/CTA lives only on Sobre Mí, not repeated on every page */

.footer {
  border-top: 1px solid var(--line);
  padding: 2rem clamp(1.25rem, 4vw, 3rem);
}

.footer__copy {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--fg-faint);
  display: flex;
  justify-content: space-between;
}

/* ---------------------------------------------------------------- project page */

.project-header {
  max-width: 780px;
  margin: 0 auto;
  padding: 9rem 1.5rem 3.5rem;
  text-align: center;
}

.project-header .eyebrow { margin-bottom: 1.2rem; }

.project-title {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tight);
  font-size: clamp(1.9rem, 5.5vw, 3.6rem);
  line-height: 1.05;
  margin: 0 0 1.6rem;
  color: var(--fg);
}

.project-directed {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tight);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: var(--fg);
  margin: 0 0 1.2rem;
}

.credits {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}

.credits dt {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 0.3rem;
}

.credits dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--fg);
}

/* -------- video player: a normal contained embed, not full-bleed —
   only expands to true fullscreen if the viewer clicks the player's
   own fullscreen control. */

.project-player {
  max-width: 1180px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}

.project-player__inner {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  overflow: hidden;
}

.project-player__poster {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(0.35) saturate(0.85) brightness(0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  padding: 0;
  width: 100%;
}

.project-player__poster-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1px solid rgba(242,240,236,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,5,5,0.35);
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.project-player__poster:hover .project-player__poster-icon {
  background: var(--fg);
  border-color: var(--fg);
  transform: scale(1.06);
}

.project-player__poster:hover .project-player__poster-icon svg { fill: var(--bg); }

.project-player__poster-icon svg { width: 15px; height: 15px; fill: var(--fg); margin-left: 2px; }

.project-player__soon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

.project-player__embed {
  display: none;
  position: absolute;
  inset: 0;
}

.project-player.is-playing .project-player__poster { display: none; }
.project-player.is-playing .project-player__embed { display: block; }

.project-player__embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------------------------------------------------------------- frames gallery */

.frames {
  padding: 2rem 0 7rem;
}

.frames__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2px, 0.4vw, 6px);
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.frames__item {
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-raised);
  filter: grayscale(0) brightness(0.9);
  transition: filter 0.5s ease;
}

.frames__item:hover { filter: grayscale(1) contrast(1.05) brightness(0.75); }

.back-link {
  position: fixed;
  top: 5.5rem;
  left: clamp(1.25rem, 4vw, 3rem);
  z-index: 400;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: lowercase;
  color: var(--fg);
  text-shadow: 0 2px 10px rgba(0,0,0,0.7);
}

.back-link:hover { color: var(--beige); }

/* ---------------------------------------------------------------- about page */

.about {
  padding: 10rem clamp(1.25rem, 4vw, 3rem) 8rem;
  max-width: 1140px;
  margin: 0 auto;
}

.about__layout {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}

.about__photo {
  aspect-ratio: 4 / 5;
  background: linear-gradient(155deg, #161513, #050505 70%);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__photo span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-faint);
}

.about__title {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tight);
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
  line-height: 1.25;
  margin: 0 0 1.2rem;
  color: var(--fg);
}

.about__bio {
  font-size: clamp(0.98rem, 1.4vw, 1.1rem);
  font-weight: 300;
  line-height: 1.75;
  color: var(--fg-dim);
  max-width: 62ch;
  margin-bottom: 3.5rem;
}

.about__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.about__contact-item dt {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 0.4rem;
}

.about__contact-item dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 300;
}

.about__contact-item a { position: relative; }
.about__contact-item a:hover { color: var(--beige); }

.about__social {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
}

.about__social-links {
  display: flex;
  gap: 2rem;
  margin-top: 1rem;
}

.about__social-links a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg-dim);
  font-size: 0.85rem;
  font-weight: 300;
  text-transform: lowercase;
  transition: color 0.25s ease;
}

.about__social-links a:hover { color: var(--beige); }

.about__social-links svg { width: 19px; height: 19px; flex-shrink: 0; }

/* ---------------------------------------------------------------- error page */

.error {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem;
}

.error__code {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tight);
  font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 1;
  margin: 0.6rem 0 0;
  color: var(--fg);
}

.error__message {
  margin: 1.4rem 0 0;
  font-size: clamp(0.98rem, 1.4vw, 1.1rem);
  font-weight: 300;
  text-transform: lowercase;
  color: var(--fg-dim);
  max-width: 46ch;
  line-height: 1.7;
}

.error__back {
  position: relative;
  display: inline-block;
  margin-top: 2.6rem;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: lowercase;
  color: var(--fg-dim);
  transition: color 0.25s ease;
}

.error__back::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s cubic-bezier(.16,.84,.44,1);
}

.error__back:hover {
  color: var(--fg);
}

.error__back:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ---------------------------------------------------------------- responsive */

@media (max-width: 860px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .frames__grid { grid-template-columns: repeat(2, 1fr); }
  .about__layout { grid-template-columns: 1fr; }
  .about__photo { max-width: 420px; }
  .nav__links { gap: 1rem; }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .frames__grid { grid-template-columns: 1fr; }
}