/* 
  Bytrea Corporate Website Design System & Styles
  Theme: Professional Navy/Slate with Champagne Bronze Accent
  Fonts: Outfit (Headings), Inter (Body)
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens / CSS Variables --- */
:root {
  /* Deep sophisticated slate/navy backgrounds */
  --color-bg-main: #0B0E14;
  --color-bg-sec: #12161F;
  --color-bg-card: #181C25;
  --color-bg-card-hover: #1F2430;
  
  /* Champagne/Bronze Accent */
  --color-accent: #B89965;
  --color-accent-light: #D4B886;
  --color-accent-dark: #967A4E;
  --color-accent-rgb: 184, 153, 101;
  
  /* Typography */
  --color-text-pri: #F8FAFC;
  --color-text-sec: #94A3B8;
  --color-text-muted: #64748B;
  
  /* Borders - Thinner, more transparent for elegance */
  --color-border: rgba(184, 153, 101, 0.15);
  --color-border-hover: rgba(184, 153, 101, 0.35);
  
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --gradient-gold: linear-gradient(135deg, #B89965 0%, #8C7043 100%);
  --gradient-dark: linear-gradient(180deg, #12161F 0%, #0B0E14 100%);
  --gradient-glow: radial-gradient(circle, rgba(184, 153, 101, 0.12) 0%, rgba(11, 14, 20, 0) 70%);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --container-width: 1200px;
  
  --shadow-gold: 0 10px 30px -10px rgba(184, 153, 101, 0.25);
  --shadow-glow: 0 0 40px -5px rgba(184, 153, 101, 0.12);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg-main);
  color: var(--color-text-pri);
  font-family: var(--font-body);
  overflow-x: hidden;
  width: 100%;
}

body {
  overflow-x: hidden;
  width: 100%;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden; /* Lock scroll when mobile menu is open */
}

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

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

button, input, textarea, select {
  font-family: inherit;
  background: none;
  border: none;
  outline: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: #1F2430;
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dark);
}

/* --- Global Utilities --- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
  position: relative;
}

.section-bg-sec {
  background-color: var(--color-bg-sec);
}

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

.bg-gradient-gold {
  background: var(--gradient-gold);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.2rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  cursor: pointer;
  gap: 0.6rem;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: var(--gradient-gold);
  color: #0B0E14;
  box-shadow: 0 4px 15px -3px rgba(184, 153, 101, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #D4B886 0%, #B89965 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px -3px rgba(184, 153, 101, 0.4);
}

.btn-secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text-pri);
  background: rgba(255, 255, 255, 0.02);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(184, 153, 101, 0.05);
  transform: translateY(-2px);
}

.section-title-wrapper {
  text-align: center;
  margin-bottom: 5rem;
  position: relative;
  z-index: 2;
}

.section-subtitle {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.25;
}

.section-title span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glassmorphism {
  background: rgba(24, 28, 37, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
}

/* Background Glow Effects */
.bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  background: var(--gradient-glow);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(11, 14, 20, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.5rem 0;
}

.header.menu-open {
  background: #0B0E14; /* Solid background when menu open on mobile */
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  transition: var(--transition-normal);
}

.header.scrolled .header-container {
  padding: 0.5rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-text-pri);
}

.logo-dot {
  width: 6px;
  height: 6px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  display: inline-block;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-sec);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text-pri);
}

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

.nav-cta {
  margin-left: 1rem;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.6rem;
  transition: var(--transition-normal);
}

.lang-switcher:hover {
  border-color: var(--color-accent);
  background: rgba(184, 153, 101, 0.05);
}

.lang-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-sec);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.lang-link:hover {
  color: var(--color-text-pri);
}

.lang-link.active {
  color: #0B0E14;
  background: var(--gradient-gold);
}

.lang-separator {
  width: 1px;
  height: 12px;
  background-color: var(--color-border);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 25px;
  height: 18px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-pri);
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 8rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(184, 153, 101, 0.08) 0%, rgba(11, 14, 20, 0) 70%);
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 620px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  background: rgba(184, 153, 101, 0.08);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent-light);
  margin-bottom: 2rem;
}

.hero-badge-pulse {
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
  box-shadow: 0 0 8px var(--color-accent);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}

.hero-title span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-sec);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 3.5rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

.hero-stat-item h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-pri);
  line-height: 1.2;
}

.hero-stat-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-img-wrapper {
  position: relative;
  z-index: 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-glow);
  background: var(--color-bg-card);
}

.hero-img-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 14, 20, 0) 60%, rgba(11, 14, 20, 0.6) 100%);
  pointer-events: none;
}

.hero-visual-card {
  position: absolute;
  bottom: 2rem;
  left: -2.5rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 4s ease-in-out infinite;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.hero-visual-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(184, 153, 101, 0.1);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.hero-visual-card-text h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-pri);
}

.hero-visual-card-text p {
  font-size: 0.8rem;
  color: var(--color-text-sec);
}

/* --- Services Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  z-index: 2;
  position: relative;
}

.service-card {
  border-radius: var(--radius-lg);
  padding: 3rem 2.2rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(184, 153, 101, 0.05) 0%, rgba(184, 153, 101, 0) 100%);
  opacity: 0;
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-light);
  box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(184, 153, 101, 0.08);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 2rem;
  transition: var(--transition-normal);
  font-size: 1.6rem;
}

.service-card:hover .service-icon-wrapper {
  background: var(--gradient-gold);
  color: #0B0E14;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(184, 153, 101, 0.3);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--color-text-pri);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--color-text-sec);
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.service-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
}

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

.service-card:hover .service-link i {
  transform: translateX(4px);
}

/* --- About Us Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 5rem;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-img-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  position: relative;
}

.about-experience-badge {
  position: absolute;
  top: 2rem;
  right: -2rem;
  background: var(--gradient-gold);
  color: #0B0E14;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-gold);
  z-index: 2;
  font-family: var(--font-heading);
}

.about-experience-badge span {
  font-size: 2.2rem;
  font-weight: 800;
  display: block;
  line-height: 1;
}

.about-experience-badge p {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.about-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1.5rem;
}

.about-title span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.about-p {
  color: var(--color-text-sec);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.about-feature-icon {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-top: 0.15rem;
}

.about-feature-text h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--color-text-pri);
}

.about-feature-text p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Tech Stack Section --- */
.tech-slider-wrapper {
  margin-top: 2rem;
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 1.5rem 0;
}

.tech-slider-wrapper::before, .tech-slider-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 150px;
  z-index: 2;
  pointer-events: none;
}

.tech-slider-wrapper::before {
  left: 0;
  background: linear-gradient(90deg, var(--color-bg-sec) 0%, rgba(18, 22, 31, 0) 100%);
}

.tech-slider-wrapper::after {
  right: 0;
  background: linear-gradient(-90deg, var(--color-bg-sec) 0%, rgba(18, 22, 31, 0) 100%);
}

.tech-track {
  display: flex;
  gap: 3.5rem;
  width: max-content;
  animation: scrollTrack 30s linear infinite;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.01);
  transition: var(--transition-normal);
}

.tech-item:hover {
  border-color: var(--color-accent);
  background: rgba(184, 153, 101, 0.05);
  transform: translateY(-2px);
}

.tech-item i, .tech-item svg {
  font-size: 1.8rem;
  color: var(--color-accent);
  width: 30px;
  display: flex;
  justify-content: center;
}

.tech-item span {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-pri);
}

/* --- Portfolio / Projects Section --- */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.6rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.01);
  color: var(--color-text-sec);
  cursor: pointer;
  transition: var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--gradient-gold);
  color: #0B0E14;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(184, 153, 101, 0.25);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); /* Optimized for mobile */
  gap: 2.5rem;
  position: relative;
  z-index: 2;
  transition: var(--transition-normal);
}

.portfolio-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: opacity 0.4s ease, transform 0.4s ease;
  background: var(--color-bg-card);
}

.portfolio-item.hidden {
  display: none;
}

.portfolio-item:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-light);
  box-shadow: var(--shadow-glow);
}

.portfolio-img-box {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}

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

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

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 20, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
  backdrop-filter: blur(4px);
}

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

.portfolio-overlay-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: var(--gradient-gold);
  color: #0B0E14;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-gold);
  transform: scale(0.8);
  transition: var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay-icon {
  transform: scale(1);
}

.portfolio-info {
  padding: 1.8rem;
}

.portfolio-cat {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  display: block;
}

.portfolio-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  transition: var(--transition-fast);
  color: var(--color-text-pri);
}

.portfolio-item:hover .portfolio-title {
  color: var(--color-accent-light);
}

.portfolio-desc {
  font-size: 0.9rem;
  color: var(--color-text-sec);
  line-height: 1.5;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4.5rem;
  position: relative;
  z-index: 2;
}

.contact-info-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
}

.contact-info-title span {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.contact-info-desc {
  color: var(--color-text-sec);
  font-size: 1rem;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  margin-top: 1rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.contact-detail-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: rgba(184, 153, 101, 0.08);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-detail-text p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-pri);
}

.contact-socials {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-social-link {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-sec);
  transition: var(--transition-normal);
}

.contact-social-link:hover {
  background: var(--gradient-gold);
  color: #0B0E14;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(184, 153, 101, 0.3);
  transform: translateY(-2px);
}

.contact-form-card {
  padding: 3rem;
  border-radius: var(--radius-lg);
  position: relative;
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

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

.form-group-full {
  grid-column: span 2;
}

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

.form-input {
  width: 100%;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(11, 14, 20, 0.4);
  font-size: 0.95rem;
  color: var(--color-text-pri);
  transition: var(--transition-normal);
}

.form-input:focus {
  border-color: var(--color-accent);
  background: rgba(11, 14, 20, 0.7);
  box-shadow: 0 0 10px rgba(184, 153, 101, 0.1);
}

.form-input.error {
  border-color: #ef4444;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

.form-error-msg {
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: 0.2rem;
  position: absolute;
  bottom: -1.4rem;
  left: 0.2rem;
  display: none;
}

.form-input.error + .form-error-msg {
  display: block;
}

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

.form-submit-btn {
  width: 100%;
  margin-top: 0.5rem;
}

/* Modal and Notification Styles */
.modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.modal.active {
  opacity: 1;
  pointer-events: all;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(6px);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 500px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.6), var(--shadow-glow);
  transform: translateY(20px);
  transition: var(--transition-normal);
  z-index: 2;
}

.modal.active .modal-content {
  transform: translateY(0);
}

.modal-icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-full);
  background: rgba(184, 153, 101, 0.1);
  border: 1px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: var(--color-accent);
  margin: 0 auto 1.5rem auto;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--color-text-pri);
}

.modal-desc {
  color: var(--color-text-sec);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.modal-close-btn {
  width: 100%;
}

/* --- Footer Section --- */
.footer {
  background-color: #06080B;
  border-top: 1px solid var(--color-border);
  padding: 5rem 0 2rem 0;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  font-size: 0.95rem;
  color: var(--color-text-sec);
  line-height: 1.6;
}

.footer-links-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-text-pri);
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.footer-link {
  font-size: 0.95rem;
  color: var(--color-text-sec);
  display: inline-block;
}

.footer-link:hover {
  color: var(--color-accent-light);
  transform: translateX(3px);
}

.footer-newsletter-column h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-text-pri);
}

.footer-newsletter-desc {
  font-size: 0.95rem;
  color: var(--color-text-sec);
  margin-bottom: 1.2rem;
}

.newsletter-form {
  position: relative;
  display: flex;
  align-items: center;
}

.newsletter-input {
  width: 100%;
  padding: 0.85rem 3.5rem 0.85rem 1.2rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--color-text-pri);
  transition: var(--transition-normal);
}

.newsletter-input:focus {
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.04);
}

.newsletter-btn {
  position: absolute;
  right: 6px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gradient-gold);
  color: #0B0E14;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
}

.newsletter-btn:hover {
  background: linear-gradient(135deg, #D4B886 0%, #B89965 100%);
  transform: scale(1.03);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-link {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-bottom-link:hover {
  color: var(--color-accent);
}

/* --- Scroll Animations (Scroll-reveal) --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Animations --- */
@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(184, 153, 101, 0.4);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(184, 153, 101, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(184, 153, 101, 0);
  }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

@keyframes scrollTrack {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-50% - 1.75rem)); }
}

/* --- Responsive Media Queries --- */

/* Tablet & Smaller Desktop */
@media (max-width: 1024px) {
  :root {
    --container-width: 900px;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-content {
    margin: 0 auto;
  }

  .hero-badge, .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    margin: 0 auto;
    max-width: 500px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: center;
  }
  
  .about-visual {
    order: 2; /* Move image below text on tablet */
    margin: 0 auto;
    max-width: 500px;
  }
  
  .about-features {
    text-align: left;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile Devices */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .section-title {
    font-size: 2.2rem;
  }

  .section-title-wrapper {
    margin-bottom: 3rem;
  }
  
  /* Navigation mobile styling */
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #0B0E14; /* Solid for better contrast */
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 6rem 2.5rem 3rem 2.5rem;
    gap: 1.8rem;
    transition: var(--transition-normal);
    z-index: 999;
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .services-grid, .contact-info-column {
    text-align: center;
  }
  
  .service-icon-wrapper, .contact-detail-item {
    margin-left: auto;
    margin-right: auto;
  }
  
  .contact-detail-item {
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .contact-socials {
    justify-content: center;
  }
  
  .nav-cta {
    margin-left: 0;
    width: 100%;
    margin-top: 1rem;
  }
  
  .nav-cta .btn {
    width: 100%;
  }
  
  /* Menu icon active state transformation */
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -7px);
  }
  
  /* Hero section mobile */
  .hero {
    padding-top: 6rem;
    min-height: auto;
  }

  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-visual-card {
    left: 1rem;
    padding: 0.8rem;
  }
  
  .hero-visual-card-text h4 {
    font-size: 0.85rem;
  }

  .about-experience-badge {
    right: 1rem;
    padding: 1rem;
  }
  
  .about-experience-badge span {
    font-size: 1.8rem;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .form-group-full {
    grid-column: span 1;
  }

  .contact-form-card {
    padding: 2.5rem 1.5rem;
  }
}

/* Small Phones */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }
  
  .hero-stat-item {
    flex: 1 1 40%;
  }
  
  .about-features {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .footer-newsletter-column {
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .portfolio-filter {
    flex-direction: column;
    align-items: center;
  }

  .filter-btn {
    width: 100%;
    text-align: center;
  }
}