/* ===== Reset & Base ===== */

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

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: #050505;
  color: #e8e8e8;
  line-height: 1.9;
}

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

/* ===== Utility Classes ===== */

.container {
  max-width: 950px;
  margin: 0 auto;
}

.container--narrow {
  max-width: 900px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

/* ===== Navigation ===== */

:root {
  --nav-height: 140px;
}

nav {
  position: fixed;
  top: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 25px 60px;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  height: var(--nav-height);
  transition: padding 0.35s ease, background 0.35s ease;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  height: 145px;
  transition: height 0.35s ease;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links a {
  color: #c6a85b;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  font-size: 0.8rem;
  position: relative;
  transition: color 0.25s ease;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 1px;
  background: #c6a85b;
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Scrolled state */
nav.scrolled {
  padding: 15px 60px;
  background: rgba(0, 0, 0, 0.97);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

nav.scrolled .logo {
  height: 110px;
}

/* ===== Skip Navigation (Accessibility) ===== */

.skip-nav {
  position: absolute;
  top: -100%;
  left: 16px;
  padding: 12px 24px;
  background: #c6a85b;
  color: #050505;
  font-weight: 500;
  font-size: 0.9rem;
  z-index: 10000;
  text-decoration: none;
  border-radius: 4px;
}

.skip-nav:focus {
  top: 16px;
}

/* ===== Hero (Parallax) ===== */

.hero {
  --parallax-y: 0px;
  height: 78vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 40px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 0;
  width: 100%;
  height: 140%;
  background:
    linear-gradient(rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.65)),
    url('assets/hero.jpg') top center / cover no-repeat;
  z-index: 0;
  will-change: transform;
  transform: translateY(var(--parallax-y));
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: 2.6rem;
  letter-spacing: 0.4px;
  font-weight: 600;
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.35;
}

.hero-services {
  position: absolute;
  bottom: 40px;
  left: 0;
  width: 100%;
  text-align: center;
  font-size: 1rem;
  letter-spacing: 1.2px;
  z-index: 1;
}

.hero-services a {
  color: #c6a85b;
  text-decoration: none;
  margin: 0 12px;
  transition: opacity 0.3s ease;
}

.hero-services a:hover {
  opacity: 0.7;
}

.hero-services span {
  color: #666;
  margin: 0 6px;
}

/* ===== Button ===== */

.btn {
  display: inline-block;
  margin-top: 35px;
  padding: 16px 42px;
  background: #c6a85b;
  color: #050505;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 1px;
  font-weight: 500;
  transition: opacity 0.3s ease;
}

.btn:hover {
  opacity: 0.85;
}

/* ===== Sections ===== */

.section {
  padding: 170px 150px;
}

.section.dark {
  background: #0e0e0e;
}

.divider {
  width: 60px;
  height: 2px;
  background: #c6a85b;
  margin: 35px auto;
  transition: width 0.8s ease;
}

.visible .divider,
.fade.visible .divider {
  width: 80px;
}

.divider--left {
  margin-left: 0;
  margin-right: auto;
}

section {
  scroll-margin-top: 160px;
}

/* ===== Scroll Reveal ===== */

html {
  scroll-behavior: smooth;
}

.fade {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 1s ease, transform 1s ease;
}

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

/* Slide from left */
.fade-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Slide from right */
.fade-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale up reveal */
.fade-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 1s ease, transform 1s ease;
}

.fade-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Parallax depth layer — subtle float effect */
.parallax-layer {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ===== Service Blocks ===== */

.service-block {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 140px;
  background: #0e0e0e;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.service-block:nth-of-type(even) {
  background: #050505;
}

.service-content {
  max-width: 900px;
  margin: 0 auto;
}

.service-img {
  display: block;
  width: 340px;
  height: 180px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
  transition: transform 0.6s ease, box-shadow 0.6s ease;
}

.service-img:hover {
  transform: scale(1.03);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.65);
}

.service-content h3 {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 18px;
}

.service-content p {
  font-size: 1rem;
  line-height: 1.85;
  color: #d0d0d0;
  margin-top: 0;
}

/* ===== Approach Steps ===== */

.approach-steps {
  margin-top: 50px;
}

.approach-steps h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  margin: 40px 0 10px;
  color: #e8e8e8;
}

.approach-steps h3:first-child {
  margin-top: 0;
}

.approach-steps p {
  margin-top: 0;
}

/* ===== Engagement List ===== */

.engagement-list {
  margin-top: 30px;
  line-height: 2;
  color: #cfcfcf;
  padding-left: 20px;
}

/* ===== Contact Section ===== */

.contact-intro {
  margin-top: 30px;
}

.contact-info {
  margin-top: 40px;
  font-size: 1.05rem;
  line-height: 2;
}

.contact-info a {
  color: #c6a85b;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.contact-info a:hover {
  opacity: 0.7;
}

.contact-note {
  margin-top: 50px;
  font-size: 0.95rem;
  color: #999;
}

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

.footer {
  background: #050505;
  padding: 80px 40px 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.footer__brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  color: #c6a85b;
}

.footer__desc {
  max-width: 700px;
  color: #bfbfbf;
  line-height: 1.8;
}

.footer__confidential {
  color: #999;
  font-size: 0.9rem;
}

.footer__copyright {
  margin-top: 20px;
  color: #777;
  font-size: 0.85rem;
}

/* ===== Responsive: Tablet ===== */

@media (max-width: 1200px) {
  .section {
    padding: 120px 80px;
  }

  .hero {
    height: 70vh;
  }

  .hero h1 {
    font-size: 2rem;
  }

  nav {
    padding: 20px 40px;
  }

  nav.scrolled {
    padding: 12px 40px;
  }
}

/* ===== Responsive: Small Tablet ===== */

@media (max-width: 900px) {
  .section {
    padding: 100px 40px;
  }

  .service-block {
    padding: 80px 30px 100px;
  }

  .service-img {
    width: 280px;
    height: 150px;
  }

  .hero-services {
    font-size: 0.85rem;
  }

  .hero-services a {
    margin: 0 8px;
  }
}

/* ===== Responsive: Mobile ===== */

@media (max-width: 768px) {
  nav {
    padding: 15px 20px;
    --nav-height: 100px;
    height: var(--nav-height);
  }

  nav.scrolled {
    padding: 10px 20px;
  }

  .logo {
    height: 80px;
  }

  nav.scrolled .logo {
    height: 65px;
  }

  .nav-links {
    gap: 8px;
  }

  .nav-links a {
    font-size: 0.7rem;
    letter-spacing: 0.8px;
  }

  .hero {
    height: auto;
    min-height: 70vh;
    padding: 120px 24px 80px;
  }

  .hero h1 {
    font-size: 1.6rem;
    max-width: 100%;
  }

  .hero-services {
    position: relative;
    bottom: auto;
    left: auto;
    transform: none;
    margin-top: 40px;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
  }

  .section {
    padding: 80px 24px;
  }

  .service-block {
    padding: 60px 24px 80px;
  }

  .service-img {
    width: 100%;
    height: auto;
    max-height: 200px;
  }

  .service-content h3 {
    font-size: 1.5rem;
  }

  section {
    scroll-margin-top: 110px;
  }

  .footer {
    padding: 60px 24px 40px;
  }
}

/* ===== Responsive: Small Mobile ===== */

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.35rem;
  }

  .hero-services a {
    font-size: 0.75rem;
    margin: 0 4px;
  }

  .section {
    padding: 60px 16px;
  }

  .service-block {
    padding: 50px 16px 60px;
  }

  .btn {
    padding: 14px 32px;
    font-size: 0.85rem;
  }

  nav {
    padding: 12px 16px;
    --nav-height: 80px;
    height: var(--nav-height);
  }

  .logo {
    height: 60px;
  }

  nav.scrolled .logo {
    height: 50px;
  }
}

/* ===== Disable parallax on mobile (performance) ===== */

@media (max-width: 768px) {
  .hero::before {
    transform: none !important;
    top: 0;
    height: 100%;
  }

  .fade-left,
  .fade-right {
    transform: translateY(40px);
  }

  .fade-left.visible,
  .fade-right.visible {
    transform: translateY(0);
  }
}

/* ===== Reduced Motion (Accessibility) ===== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .hero::before {
    transform: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}