/* ========================================
   Avantlingua — Style Sheet
   Aesthetic: Diplomatic Luxury / Dark Editorial
   ======================================== */

/* --- Custom Properties --- */
:root {
  --bg:             #0A0A0A;
  --bg-surface:     #111111;
  --bg-elevated:    #1A1A1A;
  --text:           #E8E4DD;
  --text-secondary: #8A8580;
  --text-muted:     #555250;
  --gold:           #C9A555;
  --gold-glow:      rgba(201, 165, 85, 0.15);
  --gold-hover:     #D4B76A;
  --green:          #2D6A4F;
  --border:         rgba(255, 255, 255, 0.06);
  --border-hover:   rgba(201, 165, 85, 0.25);

  --font-display:   'Cormorant', Georgia, serif;
  --font-body:      'Hanken Grotesk', system-ui, sans-serif;

  --container:      1200px;
  --gutter:         clamp(1.5rem, 4vw, 3rem);

  --ease-out:       cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:    cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

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

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

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

/* --- Grain Texture --- */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}

.grain::before {
  content: '';
  position: absolute;
  inset: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.025;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Typography --- */
.section-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 2.5rem;
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border-radius: 0;
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--gold);
  color: var(--bg);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold-hover);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}

.btn--primary:hover::before {
  transform: scaleX(1);
}

.btn--primary:hover {
  box-shadow: 0 0 30px var(--gold-glow);
}

.btn--primary span,
.btn--primary {
  position: relative;
  z-index: 1;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn--large {
  padding: 1.25rem 3rem;
  font-size: 0.9rem;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: all 0.5s var(--ease-out);
}

.nav--scrolled {
  padding: 1rem 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
  transition: color 0.3s;
}

.nav__logo:hover {
  color: var(--gold);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__links a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.nav__links a:hover {
  color: var(--text);
}

.nav__cta {
  padding: 0.65rem 1.5rem;
  border: 1px solid var(--border);
  transition: all 0.3s var(--ease-out) !important;
}

.nav__cta:hover {
  border-color: var(--gold) !important;
  color: var(--gold) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
}

.nav__toggle span {
  display: block;
  height: 1px;
  background: var(--text);
  transition: all 0.4s var(--ease-out);
  transform-origin: center;
}

.nav__toggle.active span:first-child {
  transform: rotate(45deg) translateY(3.5px);
}

.nav__toggle.active span:last-child {
  transform: rotate(-45deg) translateY(-3.5px);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s var(--ease-out);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 400;
  color: var(--text);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s var(--ease-out);
}

.mobile-menu.active .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-menu__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-menu__link:nth-child(2) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-menu__link:nth-child(3) { transition-delay: 0.3s; }

.mobile-menu__link:hover {
  color: var(--gold);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem var(--gutter) 6rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201, 165, 85, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(45, 106, 79, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(201, 165, 85, 0.03) 0%, transparent 40%);
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 850px;
}

.hero__greeting {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-style: italic;
  font-weight: 300;
  color: var(--gold);
  margin-bottom: 1.5rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
}

.hero__greeting span {
  display: inline-block;
  animation: greetingFade 0.6s var(--ease-out);
}

@keyframes greetingFade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
}

.hero__title em {
  font-style: italic;
  color: var(--gold);
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 300;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 3rem;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero__scroll span {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s var(--ease-in-out) infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%      { opacity: 1;   transform: scaleY(1); }
}

/* --- Marquee --- */
.marquee {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg-surface);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marqueeScroll 50s linear infinite;
}

.marquee__track:hover {
  animation-play-state: paused;
}

.marquee__content {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
}

.marquee__content span {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 400;
  color: var(--text-secondary);
  white-space: nowrap;
  padding: 0 0.5rem;
}

.marquee__sep {
  color: var(--gold) !important;
  opacity: 0.5;
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Services --- */
.services {
  padding: clamp(5rem, 12vw, 10rem) 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
}

.service-card {
  background: var(--bg);
  padding: clamp(2rem, 4vw, 3.5rem);
  position: relative;
  cursor: default;
  transition: all 0.5s var(--ease-out);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ease-out);
}

.service-card:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}

.service-card:hover {
  background: var(--bg-surface);
}

.service-card__num {
  display: block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  margin-bottom: 1rem;
  transition: color 0.3s;
}

.service-card:hover .service-card__title {
  color: var(--gold);
}

.service-card__desc {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 400px;
}

.service-card__arrow {
  position: absolute;
  top: clamp(2rem, 4vw, 3.5rem);
  right: clamp(2rem, 4vw, 3.5rem);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  opacity: 0;
  transform: translate(-8px, 8px);
  transition: all 0.4s var(--ease-out);
}

.service-card:hover .service-card__arrow {
  opacity: 1;
  transform: translate(0, 0);
  color: var(--gold);
}

/* --- Stats --- */
.stats {
  padding: clamp(4rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat__value {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.1em;
}

.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
}

.stat__suffix {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 300;
  color: var(--gold);
}

.stat__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

/* --- About --- */
.about {
  padding: clamp(5rem, 12vw, 10rem) 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}

.about__desc {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 1.5rem;
}

.about__desc:last-of-type {
  margin-bottom: 0;
}

/* Script grid — decorative characters */
.script-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  aspect-ratio: 1;
}

.script-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--text-muted);
  background: var(--bg);
  transition: all 0.5s var(--ease-out);
  animation: gentleFloat 6s var(--ease-in-out) infinite;
  animation-delay: var(--float-delay, 0s);
}

.script-grid span:hover {
  color: var(--gold);
  background: var(--bg-surface);
}

@keyframes gentleFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

/* --- CTA --- */
.cta {
  padding: clamp(6rem, 14vw, 12rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(201, 165, 85, 0.06) 0%, transparent 60%);
}

.cta__inner {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  line-height: 1;
  margin-bottom: 1.5rem;
}

.cta__title em {
  font-style: italic;
  color: var(--gold);
}

.cta__desc {
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.cta__actions {
  display: flex;
  justify-content: center;
}

/* --- Footer --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

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

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.3s;
}

.footer__logo:hover {
  color: var(--gold);
}

.footer__tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.footer__links a:hover {
  color: var(--gold);
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
  transition-delay: var(--delay, 0s);
}

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

/* --- Selection --- */
::selection {
  background: var(--gold);
  color: var(--bg);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

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

@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }

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

  .about__visual {
    order: -1;
  }

  .script-grid {
    max-width: 300px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    padding: 7rem var(--gutter) 5rem;
  }

  .hero__title {
    font-size: clamp(2.8rem, 12vw, 5rem);
  }

  .hero__scroll {
    display: none;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    text-align: center;
  }
}