/* 
   Nova Space Agency - Core Design System & Stylesheet (Quiet Luxury Theme)
   Author: Antigravity Code Assistant
   Description: Premium, intimate, and modern design featuring deep emerald, sage, and warm gold accents.
*/

/* --- Imports --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swap');

/* --- Custom Properties (Design Tokens) --- */
:root {
  /* Color Palette */
  --color-primary-dark: #091310;     /* Deep Onyx Emerald */
  --color-primary: #0F251E;          /* Imperial Forest Green */
  --color-primary-light: #1A3E32;    /* Medium Sage Emerald */
  --color-sage: #778D82;             /* Sophisticated Muted Sage */
  --color-sage-light: #C0CDC6;       /* Soft Sage Accent */
  --color-gold: #C2A176;             /* Warm Brushed Gold */
  --color-gold-hover: #D8B78C;       /* Light Champagne Gold */
  --color-bg-light: #F6F8F5;         /* Creamy Linen White */
  --color-bg-pure: #FFFFFF;          /* Pure White */
  --color-text-dark: #121A16;        /* Deep Charcoal Green */
  --color-text-muted: #53645D;       /* Muted Sage Slate */
  --color-border-light: rgba(15, 37, 30, 0.08); /* Minimal Border Emerald */
  --color-border-gold: rgba(194, 161, 118, 0.25); /* Gold Accent Border */
  
  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-round: 50%;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);

  /* Shadows */
  --shadow-subtle: 0 4px 30px rgba(9, 19, 16, 0.02);
  --shadow-premium: 0 20px 80px rgba(9, 19, 16, 0.05);
  --shadow-glass: inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  line-height: 1.15;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
}

h4 {
  font-size: clamp(1.2rem, 1.8vw, 1.6rem);
}

p {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.text-gold {
  color: var(--color-gold);
}

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

.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-body);
}

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.section {
  padding: var(--space-lg) 0;
  position: relative;
}

.section-xl {
  padding: var(--space-xl) 0;
}

/* --- Navigation Header --- */
.header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-sm) 0;
  transition: var(--transition-normal);
}

.header-scrolled {
  background-color: rgba(246, 248, 245, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-xs) 0;
  box-shadow: var(--shadow-subtle);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Elegant Logo Design */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.logo-symbol {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo-symbol::after {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-gold);
  border-radius: var(--radius-round);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-dark);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

/* Mobile Menu Trigger */
.menu-trigger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.menu-trigger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  position: absolute;
  left: 0;
  transition: var(--transition-normal);
}

.menu-trigger span:nth-child(1) { top: 0; }
.menu-trigger span:nth-child(2) { top: 11px; }
.menu-trigger span:nth-child(3) { top: 22px; }

.menu-trigger.active span:nth-child(1) {
  transform: translateY(11px) rotate(45deg);
}

.menu-trigger.active span:nth-child(2) {
  opacity: 0;
}

.menu-trigger.active span:nth-child(3) {
  transform: translateY(-11px) rotate(-45deg);
}

/* --- Buttons & UI Elements --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-primary);
}

.btn-gold {
  background-color: var(--color-gold);
  color: var(--color-primary-dark);
  border-color: var(--color-gold);
  box-shadow: 0 4px 15px rgba(194, 161, 118, 0.2);
}

.btn-gold:hover {
  background-color: var(--color-primary);
  color: var(--color-bg-light);
  border-color: var(--color-primary);
  box-shadow: none;
}

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-bg-light);
}

.btn-outline-white {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-bg-light);
  background-color: transparent;
}

.btn-outline-white:hover {
  background-color: var(--color-bg-light);
  color: var(--color-primary-dark);
  border-color: var(--color-bg-light);
}

.btn-group {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* --- Section Headers --- */
.section-header {
  max-width: 680px;
  margin-bottom: var(--space-lg);
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  margin-top: 0.8rem;
  margin-bottom: 1.2rem;
  color: var(--color-primary);
}

.section-header p {
  font-size: 1.15rem;
}

/* --- Hero Components --- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--color-bg-light);
  padding-top: 120px;
  overflow: hidden;
}

/* Elegant geometric background grid */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, rgba(22, 50, 41, 0.02) 0%, rgba(22, 50, 41, 0.08) 100%);
  clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-subtitle {
  color: var(--color-gold);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.hero-title {
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
  max-width: 600px;
}

.hero-visual {
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-40%);
  width: 42%;
  height: 550px;
  z-index: 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-premium);
  border: 1px solid var(--color-border-gold);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.hero:hover .hero-visual img {
  transform: scale(1.05);
}

/* Luxury Dark Section Variant */
.section-dark {
  background-color: var(--color-primary-dark);
  color: var(--color-bg-light);
  border-top: 1px solid rgba(194, 161, 118, 0.15);
  border-bottom: 1px solid rgba(194, 161, 118, 0.15);
}

.section-dark .section-title {
  color: var(--color-bg-light);
}

.section-dark p {
  color: var(--color-sage-light);
}

.section-dark .section-header p {
  color: var(--color-sage-light);
}

/* --- Service Cards --- */
.card-service {
  background-color: var(--color-bg-pure);
  border: 1px solid var(--color-border-light);
  padding: 3rem 2.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  box-shadow: var(--shadow-subtle);
  position: relative;
  overflow: hidden;
}

.card-service::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.card-service:hover::before {
  transform: scaleX(1);
}

.card-service:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-premium);
  border-color: rgba(194, 161, 118, 0.3);
}

.service-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: rgba(119, 141, 130, 0.15);
  line-height: 1;
  margin-bottom: 1rem;
  transition: var(--transition-normal);
}

.card-service:hover .service-num {
  color: rgba(194, 161, 118, 0.25);
  transform: translate(4px, -4px);
}

.service-title {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-size: 1.6rem;
}

.service-desc {
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold);
}

.service-link svg {
  transition: var(--transition-fast);
}

.card-service:hover .service-link {
  color: var(--color-primary-light);
}

.card-service:hover .service-link svg {
  transform: translateX(6px);
}

/* --- Project Portfolio Component --- */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-gold);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  border: 1px solid var(--color-border-light);
  background-color: var(--color-bg-pure);
  transition: var(--transition-normal);
}

.portfolio-item-image {
  height: 350px;
  overflow: hidden;
  position: relative;
}

.portfolio-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.portfolio-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(9, 19, 16, 0.9) 0%, rgba(9, 19, 16, 0.2) 100%);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
  transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-item-overlay {
  opacity: 1;
}

.portfolio-item:hover .portfolio-item-image img {
  transform: scale(1.08);
}

.portfolio-item-category {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 0.5rem;
}

.portfolio-item-title {
  color: var(--color-bg-light);
  margin-bottom: 0.8rem;
}

.portfolio-item-desc {
  color: var(--color-sage-light);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-premium);
  border-color: var(--color-border-gold);
}

.portfolio-item-content {
  padding: 2rem;
  border-top: 1px solid var(--color-border-light);
}

.portfolio-item-content h3 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.portfolio-item-content p {
  font-size: 0.95rem;
}

.portfolio-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
}

/* --- Testimonials (Trust building) --- */
.testimonial-container {
  background-color: var(--color-bg-pure);
  border: 1px solid var(--color-border-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-premium);
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.testimonial-container::after {
  content: '“';
  position: absolute;
  top: -20px;
  left: 40px;
  font-family: var(--font-heading);
  font-size: 10rem;
  color: rgba(194, 161, 118, 0.08);
  line-height: 1;
}

.testimonial-slider {
  position: relative;
  overflow: hidden;
}

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

.testimonial-text {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.6;
  color: var(--color-primary);
  margin-bottom: 2rem;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.testimonial-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--color-text-dark);
}

.testimonial-role {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-sage);
  margin-top: 0.2rem;
}

/* --- Contact & Forms --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: start;
}

.contact-info {
  background-color: var(--color-primary);
  color: var(--color-bg-light);
  padding: 4rem 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-premium);
  border: 1px solid var(--color-border-gold);
}

.contact-info h3 {
  color: var(--color-bg-light);
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--color-sage-light);
  margin-bottom: 2.5rem;
}

.contact-details {
  display: grid;
  gap: var(--space-md);
}

.contact-detail-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.contact-icon {
  color: var(--color-gold);
  margin-top: 0.2rem;
}

.contact-text-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-sage);
}

.contact-text-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-bg-light);
  margin-top: 0.2rem;
}

.contact-form-container {
  background-color: var(--color-bg-pure);
  border: 1px solid var(--color-border-light);
  padding: 4rem 3.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-subtle);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  color: var(--color-text-dark);
}

.form-control {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-light);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-dark);
  transition: var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-gold);
  background-color: var(--color-bg-pure);
  box-shadow: 0 0 0 3px rgba(194, 161, 118, 0.1);
}

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

/* --- Footer --- */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-bg-light);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-md);
  border-top: 1px solid rgba(194, 161, 118, 0.15);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand h4 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--color-bg-light);
}

.footer-brand p {
  color: var(--color-sage-light);
  margin-bottom: 1.5rem;
  max-width: 320px;
}

.footer-links-column h5 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  color: var(--color-gold);
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.footer-link {
  color: var(--color-sage-light);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--color-gold);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  color: var(--color-sage);
  font-size: 0.85rem;
}

/* --- Animations & Utilities --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Delay modifiers for animations */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* Responsive Media Queries */
@media (max-width: 1024px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 6rem;
  }
  
  .hero-visual {
    position: relative;
    right: 0;
    top: 0;
    transform: none;
    width: 100%;
    height: 400px;
    margin-top: var(--space-md);
  }
  
  .hero {
    min-height: auto;
    padding-bottom: var(--space-lg);
  }
  
  .hero::before {
    display: none;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 768px) {
  .menu-trigger {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg-pure);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-lg) var(--space-md);
    box-shadow: -10px 0 30px rgba(9, 19, 16, 0.05);
    transition: var(--transition-normal);
    z-index: 999;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}