/* ==========================================
   Sin Problemas — Style System
   Film-industry aesthetic: dark, cinematic, photography-focused
   ========================================== */

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

:root {
  --bg-dark: #0a0a0a;
  --bg-card: #141414;
  --bg-surface: #1a1a1a;
  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --accent: #c9a96e;
  --accent-hover: #dbb978;
  --border: #2a2a2a;
  --radius: 8px;
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }

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

/* ---------- Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--bg-dark);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Container ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  padding: 1rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.logo:hover { color: var(--accent); }

.logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.logo svg {
  height: 50px;
  width: auto;
}

/* ---------- Navigation ---------- */
.site-nav { display: flex; align-items: center; }

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-list a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.nav-list a:hover,
.nav-list a.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent);
}

/* ---------- Language Switcher ---------- */
.lang-switcher { margin-left: auto; }

.lang-list {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.lang-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  transition: all var(--transition);
}
.lang-list a:hover,
.lang-list a.active {
  background: var(--accent);
  color: var(--bg-dark);
}

/* ---------- Mobile Menu Toggle ---------- */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 101;
}

.menu-icon {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  position: relative;
  transition: background var(--transition);
}
.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition);
}
.menu-icon::before { top: -7px; }
.menu-icon::after { top: 7px; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-surface) 100%);
}

.hero-inner { max-width: 800px; }

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out;
}

/* ---------- Film Strip Animation (9mm) ---------- */
.film-strip-wrapper {
  position: relative;
  display: inline-block;
  padding: 3rem 5rem;
  overflow: hidden;
}

.film-strip {
  position: absolute;
  width: 80px;
  height: 200%;
  top: -50%;
  background: #1a1a1a;
  border-left: 3px solid #333;
  border-right: 3px solid #333;
}

.film-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 8px;
  width: 16px;
  height: 100%;
  background: repeating-linear-gradient(
    180deg,
    transparent 0px,
    transparent 8px,
    #0a0a0a 8px,
    #0a0a0a 12px,
    transparent 12px,
    transparent 24px
  );
  border-radius: 2px;
}

.film-strip::after {
  content: '';
  position: absolute;
  top: 0;
  right: 8px;
  width: 16px;
  height: 100%;
  background: repeating-linear-gradient(
    180deg,
    transparent 0px,
    transparent 8px,
    #0a0a0a 8px,
    #0a0a0a 12px,
    transparent 12px,
    transparent 24px
  );
  border-radius: 2px;
}

.film-strip-left {
  left: -20px;
  transform: rotate(-12deg);
  animation: filmSlideLeft 15s linear infinite;
}

.film-strip-right {
  right: -20px;
  transform: rotate(12deg);
  animation: filmSlideRight 15s linear infinite;
}

@keyframes filmSlideLeft {
  0% { transform: rotate(-12deg) translateY(-20%); }
  100% { transform: rotate(-12deg) translateY(20%); }
}

@keyframes filmSlideRight {
  0% { transform: rotate(12deg) translateY(20%); }
  100% { transform: rotate(12deg) translateY(-20%); }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-sub {
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero .btn {
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  background: var(--accent);
  color: var(--bg-dark);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn:hover {
  background: var(--accent-hover);
  color: var(--bg-dark);
  transform: translateY(-2px);
}

/* ---------- Sections ---------- */
.section {
  padding: 6rem 0;
}

.section-dark {
  background: var(--bg-surface);
}

.section-cta {
  text-align: center;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-dark) 100%);
}

.section h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 700px;
}

.section-cta h2 { margin-bottom: 0.75rem; }
.section-cta p { color: var(--text-secondary); margin-bottom: 1.5rem; }

/* ---------- Intro Grid ---------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.intro-grid p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ---------- Services Grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.service-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color var(--transition);
}
.service-card:hover { border-color: var(--accent); }

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Service Detail ---------- */
.service-detail {
  max-width: 800px;
}
.service-detail .eyebrow { font-size: 2rem; font-weight: 700; color: var(--accent); }
.service-detail h2 { margin-bottom: 1.5rem; }
.service-detail p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* ---------- About Grid ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-grid p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* ---------- Credentials ---------- */
.credentials {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}
.credentials p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* ---------- Testimonial ---------- */
.testimonial {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 0;
}
.testimonial p {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.testimonial cite {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

/* ---------- Portfolio Grid ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

/* ---------- Portfolio Grid ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  padding: 2rem 0;
}

.portfolio-poster-link {
  display: block;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition);
  text-decoration: none;
  color: inherit;
  aspect-ratio: 2/3;
}

.portfolio-poster-link:hover {
  transform: scale(1.05);
}

.portfolio-poster-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.portfolio-poster-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.75rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.9));
}

.portfolio-poster-info h4 {
  font-size: 0.75rem;
  margin-bottom: 0.15rem;
  color: var(--text-primary);
  line-height: 1.2;
}

.portfolio-poster-info span {
  font-size: 0.65rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Portfolio Carousel ---------- */
.portfolio-carousel {
  padding: 4rem 0;
  overflow: hidden;
  background: var(--bg-surface);
}

.portfolio-carousel-track {
  display: flex;
  gap: 2rem;
  animation: portfolioScroll 40s linear infinite;
  width: max-content;
}

.portfolio-carousel-track:hover {
  animation-play-state: paused;
}

@keyframes portfolioScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.portfolio-carousel-item {
  flex-shrink: 0;
  width: 200px;
  text-align: center;
  transition: transform var(--transition);
}

.portfolio-carousel-item:hover {
  transform: scale(1.05);
}

.portfolio-carousel-item img {
  width: 200px;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  margin-bottom: 0.75rem;
}

.portfolio-carousel-item h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.portfolio-carousel-item span {
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Poster Placeholder ---------- */
.poster-placeholder {
  width: 200px;
  height: 300px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.poster-placeholder span {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
  text-transform: none;
  letter-spacing: normal;
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/10;
}
.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.portfolio-item:hover img { transform: scale(1.05); }

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
}
.portfolio-overlay h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}
.portfolio-overlay span {
  font-size: 0.85rem;
  color: var(--accent);
}

/* ---------- Contact Grid ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2,
.contact-form-wrap h2 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.contact-item {
  margin-bottom: 1.5rem;
}
.contact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.25rem;
}
.contact-item a,
.contact-item p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ---------- Contact Form ---------- */
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.5rem; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-status {
  padding: 1rem;
  border-radius: var(--radius);
  margin-top: 1rem;
}
.form-status.success {
  background: rgba(76, 175, 80, 0.15);
  color: #81c784;
  border: 1px solid rgba(76, 175, 80, 0.3);
}
.form-status.error {
  background: rgba(244, 67, 54, 0.15);
  color: #e57373;
  border: 1px solid rgba(244, 67, 54, 0.3);
}

/* ---------- Logo Carousel ---------- */
.logo-carousel {
  padding: 4rem 0;
  overflow: hidden;
  background: #ffffff;
  border-top: 1px solid #e0e0e0;
  border-bottom: 1px solid #e0e0e0;
}

.logo-carousel-track {
  display: flex;
  gap: 4rem;
  animation: scroll 30s linear infinite;
  width: max-content;
}

.logo-carousel-track:hover {
  animation-play-state: paused;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.logo-carousel-item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.logo-carousel-item:hover {
  opacity: 1;
}

.logo-carousel-item img {
  height: 40px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%) brightness(0.8);
}

.logo-carousel-item img:hover {
  filter: grayscale(0%) brightness(1.1);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}
.site-footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ---------- RTL Support ---------- */
[dir="rtl"] { direction: rtl; text-align: right; }
[dir="rtl"] .nav-list { flex-direction: row-reverse; }
[dir="rtl"] .lang-list { flex-direction: row-reverse; }
[dir="rtl"] .header-inner { flex-direction: row-reverse; }
[dir="rtl"] .logo { flex-direction: row-reverse; }
[dir="rtl"] .lang-switcher { margin-left: 0; margin-right: auto; }

/* ---------- Focus Styles ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  
  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-dark);
    padding: 5rem 2rem 2rem;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
  }
  .site-nav.open { right: 0; }
  
  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
  }
  .nav-list a { font-size: 1.1rem; }
  
  .lang-switcher {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 99;
  }
  .lang-list { gap: 0.75rem; }
  .lang-list a { width: 2.5rem; height: 2.5rem; font-size: 0.85rem; }
  
  .intro-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  
  .hero h1 { font-size: clamp(2.5rem, 10vw, 4rem); }
  
  .section { padding: 4rem 0; }
}

/* ---------- Language Chooser ---------- */
.chooser-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.chooser-container {
  text-align: center;
  padding: 2rem;
}

.chooser-container h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.chooser-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.chooser-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 300px;
  margin: 0 auto;
}

.chooser-list a {
  display: block;
  padding: 1rem 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 500;
  transition: all var(--transition);
}
.chooser-list a:hover {
  background: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
}