/* ==========================================================================
   TANKFILM — Dossier militar × sala de montaje
   ========================================================================== */

@font-face {
  font-family: 'Big Shoulders Stencil';
  src: url('../fonts/big-shoulders-stencil-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Cormorant Garamond';
  src: url('../fonts/cormorant-garamond-italic-500.woff2') format('woff2');
  font-weight: 500;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Space Mono';
  src: url('../fonts/space-mono-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Space Mono';
  src: url('../fonts/space-mono-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Archivo Black';
  src: url('../fonts/archivo-black-700.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122;
}

@font-face {
  font-family: 'Archivo Black';
  src: url('../fonts/archivo-black-700-ext.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+2020, U+2113;
}

:root {
  /* Palette — near-black ink (warm, not neutral), olive hardware (from the
     Tankfilm logo), signal red reserved for the rubber-stamp/CTA motif */
  --ink: #0d0c09;
  --ink-raised: #17140f;
  --ink-line: #2c2820;
  --paper: #ece4d3;
  --paper-dim: rgba(236, 228, 211, 0.66);
  --paper-faint: rgba(236, 228, 211, 0.4);
  --olive: #6d7347;
  --olive-bright: #9fa963;
  --signal: #b8402c;
  --signal-bright: #d85942;

  --font-display: 'Big Shoulders Stencil', 'Arial Narrow', sans-serif;
  --font-logo: 'Archivo Black', 'Arial Black', 'Helvetica Neue', sans-serif;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-mono: 'Space Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --nav-h: 4.5rem;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--signal);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--signal-bright);
  outline-offset: 3px;
}

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--signal);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  z-index: 999;
  font-family: var(--font-mono);
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Custom scrollbar (webkit) — themed, not left to the browser default */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb {
  background: var(--ink-line);
  border: 2px solid var(--ink);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: var(--olive); }

/* ==========================================================================
   Sprocket strip — filmstrip perforation divider
   ========================================================================== */

.sprocket-strip {
  height: 10px;
  background-image: radial-gradient(circle, var(--ink) 2.5px, transparent 2.6px);
  background-size: 22px 10px;
  background-position: 10px center;
  background-color: var(--olive);
  opacity: 0.55;
}
.sprocket-strip--section { opacity: 0.28; }

/* ==========================================================================
   Briefing bar (nav)
   ========================================================================== */

.briefing-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 12, 9, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.briefing-bar__inner {
  height: var(--nav-h);
  max-width: 78rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--paper);
}
.wordmark__badge { display: inline-flex; align-items: center; }
.wordmark__badge img { height: 2rem; width: auto; }
.wordmark__text {
  font-family: var(--font-logo);
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}
.wordmark__text--accent { color: var(--olive-bright); }
.wordmark--small { display: inline-flex; align-items: center; gap: 0.5rem; }
.wordmark--small .wordmark__badge img { height: 1.4rem; }
.wordmark--small .wordmark__text { font-size: 0.9rem; }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.primary-nav a {
  position: relative;
  padding-bottom: 0.25rem;
}
.primary-nav a:not(.primary-nav__whatsapp)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--signal-bright);
  transition: right 0.3s var(--ease-out);
}
.primary-nav a:not(.primary-nav__whatsapp):hover::after,
.primary-nav a:not(.primary-nav__whatsapp):focus-visible::after {
  right: 0;
}

.primary-nav__whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink);
  background: var(--olive-bright);
  padding: 0.5rem 0.85rem;
  border-radius: 2px;
  transition: background 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}
.primary-nav__whatsapp:hover { background: var(--paper); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--ink-line);
  border-radius: 2px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--paper);
  transition: transform 0.25s var(--ease-out), opacity 0.25s var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 50% 30%, #201c14 0%, #0d0c09 68%);
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero__grain {
  position: absolute;
  inset: 0;
  filter: url(#filmGrain);
  opacity: 0.5;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.hero__vignette {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 45%, transparent 30%, rgba(13,12,9,0.55) 78%, rgba(13,12,9,0.92) 100%),
    linear-gradient(180deg, rgba(13,12,9,0.5) 0%, transparent 22%, transparent 70%, rgba(13,12,9,0.85) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__stamp {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--signal-bright);
  border: 1px solid var(--signal);
  padding: 0.35rem 0.9rem;
  margin: 0 0 1.75rem;
  transform: rotate(-1.5deg);
}

.hero__title {
  font-family: var(--font-logo);
  font-size: clamp(3rem, 12vw, 7rem);
  line-height: 0.92;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--paper);
}
.hero__title span { color: var(--olive-bright); }

.hero__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--olive-bright);
  margin: 0.75rem 0 2.5rem;
}

.hero__scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--paper-dim);
  transition: color 0.2s var(--ease-out);
}
.hero__scroll-cue:hover { color: var(--olive-bright); }
.scroll-cue__ring {
  transform-origin: 32px 32px;
  animation: spin 14s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .scroll-cue__ring { animation: none; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--olive);
  padding: 0.9rem 1.6rem;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
}
.btn__ink {
  position: absolute;
  inset: 0;
  background: var(--olive-bright);
  transform: scaleX(0);
  transform-origin: left;
  z-index: -1;
  transition: transform 0.35s var(--ease-out);
}
.btn:hover, .btn:focus-visible {
  color: var(--ink);
  border-color: var(--olive-bright);
}
.btn:hover .btn__ink, .btn:focus-visible .btn__ink {
  transform: scaleX(1);
}
.btn--whatsapp {
  border-color: var(--signal);
  margin-top: 1.75rem;
}
.btn--whatsapp .btn__ink { background: var(--signal-bright); }

/* ==========================================================================
   Sections — shared
   ========================================================================== */

.section {
  padding: clamp(4rem, 9vw, 7rem) 1.5rem;
}

.section__inner {
  max-width: 78rem;
  margin: 0 auto;
}

.section__inner--split {
  display: grid;
  grid-template-columns: minmax(0, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.section__heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1;
  margin: 0 0 1.5rem;
  color: var(--paper);
}
.section__heading--small { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 2.5rem; }

.section__intro {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--olive-bright);
  margin: 0 0 2.5rem;
  max-width: 42ch;
}

.section p {
  max-width: 68ch;
  color: var(--paper-dim);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Stamp badges */
.stamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border: 1.5px solid currentColor;
  border-radius: 1px;
}
.stamp--red { color: var(--signal-bright); transform: rotate(-2deg); }
.stamp--olive { color: var(--olive-bright); margin-right: 0.75rem; }

/* ==========================================================================
   Quiénes somos
   ========================================================================== */

.bio__stamp-block {
  display: flex;
  justify-content: flex-start;
  padding-top: 0.5rem;
}

.bio__lead {
  color: var(--paper);
  font-size: 1.1rem;
}

/* ==========================================================================
   Portafolio — contact sheet
   ========================================================================== */

.portfolio-category { margin-bottom: 3.5rem; }
.portfolio-category:last-child { margin-bottom: 0; }

.portfolio-update {
  max-width: 48rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--ink-line);
  background: var(--ink-raised);
}
.portfolio-update p { margin: 1.25rem 0 1.75rem; }

.portfolio-category__title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--paper);
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
}

.contact-sheet {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.frame {
  position: relative;
  display: block;
  width: 100%;
  background: var(--ink-raised);
  border: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  color: inherit;
  font-family: inherit;
}

.frame__thumb {
  display: block;
  aspect-ratio: 16 / 10;
  background:
    repeating-linear-gradient(135deg, #1c1912 0 12px, #221e15 12px 24px);
  position: relative;
  overflow: hidden;
}
.frame__thumb::after {
  content: '▶';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--paper-faint);
  transition: color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.frame:hover .frame__thumb::after,
.frame:focus-visible .frame__thumb::after {
  color: var(--signal-bright);
  transform: scale(1.15);
}
.frame:hover .frame__thumb,
.frame:focus-visible .frame__thumb {
  outline: 1px solid var(--signal);
  outline-offset: -1px;
}

.frame__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.75rem 0.9rem;
  font-family: var(--font-mono);
}

.frame__code {
  font-size: 0.7rem;
  color: var(--olive-bright);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.frame__name {
  font-size: 0.82rem;
  color: var(--paper-dim);
  text-align: right;
}

/* ==========================================================================
   Servicios — requisition manifest
   ========================================================================== */

.manifest {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink-line);
}

.manifest__row {
  display: grid;
  grid-template-columns: auto minmax(11rem, 0.32fr) 1fr;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--ink-line);
}

.manifest__rivet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--olive);
  align-self: center;
}

.manifest__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.manifest__desc {
  color: var(--paper-dim);
  font-size: 0.9rem;
  max-width: 52ch;
}

/* ==========================================================================
   Clientes
   ========================================================================== */

.client-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.client-row__item {
  flex: 1 1 9rem;
  min-height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-raised);
  color: var(--paper-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  filter: grayscale(1);
  opacity: 0.7;
  transition: opacity 0.25s var(--ease-out);
}
.client-row__item:hover { opacity: 1; }

/* ==========================================================================
   Contacto
   ========================================================================== */

.contact__readout {
  margin: 2rem 0;
  padding: 0;
}
.contact__readout div {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--ink-line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.contact__readout dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olive-bright);
}
.contact__readout dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.contact__readout dd a:hover { color: var(--signal-bright); }

.social-row {
  display: flex;
  gap: 1.25rem;
  margin-top: 2rem;
  color: var(--paper-dim);
}
.social-row a { transition: color 0.2s var(--ease-out); }
.social-row a:hover { color: var(--olive-bright); }

.contact__form {
  background: var(--ink-raised);
  border: 1px solid var(--ink-line);
  padding: clamp(1.75rem, 4vw, 2.5rem);
}

.form__title {
  margin: 0 0 1.75rem;
}

.contact-card__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1.1;
}

.field {
  display: block;
  margin-bottom: 1.5rem;
}
.field span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olive-bright);
  margin-bottom: 0.5rem;
}
.field input,
.field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--ink-line);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.6rem 0.1rem;
  resize: vertical;
  transition: border-color 0.2s var(--ease-out);
}
.field input:focus,
.field textarea:focus {
  border-color: var(--signal-bright);
  outline: none;
}

.form__status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--olive-bright);
  min-height: 1.2em;
  margin: 1rem 0 0;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer { background: var(--ink); }
.site-footer__inner {
  max-width: 78rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--paper-faint);
  font-size: 0.78rem;
}
.site-footer p { margin: 0; }

/* ==========================================================================
   Video modal
   ========================================================================== */

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s var(--ease-out), visibility 0.25s;
}
.video-modal[data-open="true"] {
  visibility: visible;
  opacity: 1;
}

.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 12, 9, 0.92);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.video-modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 56rem);
  background: var(--ink-raised);
  border: 1px solid var(--olive);
  padding: 1.25rem;
  transform: translateY(12px);
  transition: transform 0.3s var(--ease-out);
}
.video-modal[data-open="true"] .video-modal__panel { transform: translateY(0); }

.video-modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  background: var(--ink);
  border: 1px solid var(--ink-line);
  color: var(--paper);
  width: 2.2rem;
  height: 2.2rem;
  cursor: pointer;
  font-size: 1rem;
}
.video-modal__close:hover { border-color: var(--signal); color: var(--signal-bright); }

.video-modal__title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--olive-bright);
  margin: 0 0 1rem;
  padding-right: 2.5rem;
}

.video-modal__frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--ink);
}
.video-modal__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-modal__frame--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--paper-faint);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: center;
  padding: 1.5rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 860px) {
  .section__inner--split {
    grid-template-columns: 1fr;
  }
  .manifest__row {
    grid-template-columns: auto 1fr;
  }
  .manifest__name { grid-column: 2; }
  .manifest__desc { grid-column: 2; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--ink-raised);
    border-top: 1px solid var(--ink-line);
    max-height: calc(100svh - var(--nav-h));
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out), visibility 0.25s;
  }
  .primary-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .primary-nav a {
    width: 100%;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--ink-line);
  }
  .primary-nav__whatsapp {
    justify-content: center;
    margin: 1rem 1.5rem;
    width: calc(100% - 3rem);
  }
}