/* ===== Design Agency – Modern, SEO-friendly ===== */
:root {
  --color-bg: #0d0d0d;
  --color-surface: #161616;
  --color-text: #f2f2f2;
  --color-text-muted: #a3a3a3;
  --color-accent: #e8b923;
  --color-accent-hover: #f5d04a;
  --font-sans: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-display: "Outfit", "DM Sans", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --radius: 8px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Skip link (a11y) */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  z-index: 100;
  border-radius: var(--radius);
  transition: top var(--transition);
}
.skip-link:focus {
  top: var(--space-sm);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--color-accent);
  text-transform: uppercase;
}
.logo-bracket {
  font-weight: 300;
  font-size: 0.9em;
  color: #fff;
}
@media (min-width: 769px) {
  .logo-text { font-size: 1.25rem; }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-xs);
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-link:hover {
  color: var(--color-text);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.lang-btn {
  padding: var(--space-xs) var(--space-sm);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.lang-btn:hover {
  color: var(--color-text);
}
.lang-btn.active {
  color: var(--color-accent);
  background: rgba(232, 185, 35, 0.12);
}
.lang-sep {
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,13,13,0.6) 0%, rgba(13,13,13,0.85) 60%, var(--color-bg) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-label {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  transition: background var(--transition), transform 0.15s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.scroll-arrow {
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
}

.section-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin: 0 0 var(--space-md);
  max-width: 700px;
  line-height: 1.2;
}

.section-desc {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 560px;
}

/* Services */
.section-services {
  background: var(--color-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  transition: border-color var(--transition), transform var(--transition);
}
.service-card:hover {
  border-color: rgba(232, 185, 35, 0.3);
  transform: translateY(-4px);
}

.service-img {
  aspect-ratio: 3/2;
  overflow: hidden;
}
.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.service-card:hover .service-img img {
  transform: scale(1.05);
}

.service-body {
  padding: var(--space-md);
}

.service-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.8;
  margin-bottom: var(--space-xs);
}

.service-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
}

.service-text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Works */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.work-card {
  border-radius: var(--radius);
  overflow: hidden;
}

.work-link {
  display: block;
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.work-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.work-link:hover img {
  transform: scale(1.06);
}

.work-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  font-weight: 600;
  font-size: 1rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition);
}
.work-link:hover .work-caption {
  opacity: 1;
  transform: translateY(0);
}

/* About */
.section-about {
  background: var(--color-surface);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-visual {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0,0,0,0.4);
}
.about-visual img {
  width: 100%;
  height: auto;
  display: block;
}

.about-list {
  margin-top: var(--space-md);
}
.about-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}
.about-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Contact */
.contact-intro {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-item {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.contact-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}
.contact-item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}
.contact-item a,
.contact-item address {
  color: var(--color-text);
  font-style: normal;
}
.contact-item a:hover {
  color: var(--color-accent);
}

.contact-form label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--space-sm);
  margin-bottom: var(--space-md);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}
.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}
.contact-form .btn {
  width: 100%;
}

/* Footer */
.footer {
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.06);
  background: var(--color-surface);
}

.footer-inner {
  display: grid;
  gap: var(--space-lg);
  text-align: center;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: var(--space-xs) 0 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}
.footer-nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition);
}
.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
  }
  .about-visual {
    order: -1;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .works-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-lg);
    background: var(--color-surface);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }
  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --space-2xl: 4rem;
  }
  .hero {
    padding-top: 5rem;
  }
}