/* 
 * BY Group Trade - Brand Design System & CSS Foundation
 * Premium B2B Apparel & Textile Sourcing Company
 */

@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 --- */
:root {
  /* Colors */
  --color-primary: #0F172A;       /* Sophisticated deep navy slate */
  --color-primary-light: #1E293B; /* Lighter navy slate for cards/headers */
  --color-accent: #C5A880;        /* Warm Champagne Gold/Beige */
  --color-accent-hover: #B39369;  /* Deep Gold for hover states */
  --color-accent-light: #F4EFE6;  /* Soft warm champagne wash */
  
  --color-text-dark: #1E293B;     /* Main reading text */
  --color-text-muted: #64748B;    /* Muted captions & secondary descriptions */
  --color-text-light: #F8FAFC;    /* High-contrast dark background text */
  
  --color-bg-light: #F8FAFC;      /* Background slate tint */
  --color-bg-white: #FFFFFF;
  --color-bg-navy: #090D16;       /* Extreme dark navy for hero footer */
  
  --color-success: #10B981;       /* Premium green for successful B2B state */
  --color-border: #E2E8F0;
  --color-border-dark: #334155;
  
  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 20px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.1);
  --shadow-gold: 0 10px 30px rgba(197, 168, 128, 0.2);
  
  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  
  /* Borders */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
}

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

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

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

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-padding {
  padding: 8.5rem 0; /* Expanded vertical breathing room for elegant spacing */
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4.5rem;
}

.section-subtitle {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 1.125rem;
}

.bg-dark {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

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

/* --- Interactive Elements / Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
  cursor: pointer;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  gap: 0.75rem;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-light);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline-dark:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-2px);
}

/* --- Navigation Header --- */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-nav.scrolled {
  background-color: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
  padding: 0.75rem 0;
}

.header-nav:not(.scrolled) {
  padding: 1.5rem 0;
  background-color: transparent;
}

.header-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-text-light);
  letter-spacing: -0.01em;
}

.logo svg {
  fill: var(--color-accent);
}

.logo-accent {
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem; /* Balanced menu items gaps */
  align-items: center;
}

.nav-link {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  position: relative;
  padding: 0.5rem 0;
}

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

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

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

.nav-cta {
  display: flex;
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 1100;
  width: 30px;
  height: 24px;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-light);
  margin-bottom: 6px;
  transition: var(--transition-smooth);
}

.mobile-nav-toggle span:last-child {
  margin-bottom: 0;
}

.mobile-nav-toggle.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--color-bg-navy);
  overflow: hidden;
  padding-top: 5rem;
}

.hero-overlay-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  mix-blend-mode: luminosity;
  transform: scale(1.05);
  transition: transform 6s ease-out;
}

.hero.loaded .hero-overlay-bg {
  transform: scale(1);
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 60% 30%, rgba(30, 41, 59, 0.5) 0%, var(--color-bg-navy) 75%),
              linear-gradient(180deg, rgba(9, 13, 22, 0.4) 0%, var(--color-bg-navy) 100%);
}

.hero-wrapper {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: rgba(197, 168, 128, 0.1);
  border: 1px solid rgba(197, 168, 128, 0.2);
  color: var(--color-accent);
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
}

.hero-badge svg {
  fill: currentColor;
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2.75rem;
  line-height: 1.65;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
}

.hero-badge-group {
  margin-top: 4.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
}

.hero-badge-item {
  display: flex;
  flex-direction: column;
}

.hero-badge-num {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.hero-badge-lbl {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}

/* --- About Us Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: 6rem;
}

.about-visual {
  position: relative;
}

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

.about-img-wrapper img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.about-card-stat {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  background-color: var(--color-primary-light);
  color: var(--color-text-light);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-dark);
  max-width: 260px;
}

.about-stat-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.about-stat-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  line-height: 1.5;
}

.about-content .section-subtitle {
  margin-bottom: 1rem;
}

.about-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.75rem;
}

.about-text {
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
  font-size: 1.05rem;
  line-height: 1.65;
}

.about-bullet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2.25rem;
}

.about-bullet-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
}

.about-bullet-item svg {
  fill: var(--color-accent);
  flex-shrink: 0;
}

/* --- Services Section --- */
.what-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.what-card {
  background-color: var(--color-bg-white);
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

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

.what-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.what-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 1.75rem;
  transition: var(--transition-smooth);
}

.what-card:hover .what-icon {
  background-color: var(--color-accent-light);
  color: var(--color-accent-hover);
}

.what-icon svg {
  fill: currentColor;
}

.what-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.what-card-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Product Categories Section --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); /* Elastic layout grid to handle prime numbers elegantly */
  gap: 2rem;
}

.product-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 40%, rgba(15, 23, 42, 0.9) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  transition: var(--transition-smooth);
  z-index: 2;
}

.product-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  transform: translateY(10px);
  opacity: 0;
  transition: var(--transition-smooth);
}

.product-name {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text-light);
  line-height: 1.2;
}

.product-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-top: 0.75rem;
  transform: translateY(20px);
  opacity: 0;
  transition: var(--transition-smooth);
}

.product-action svg {
  fill: currentColor;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card:hover .product-img {
  transform: scale(1.08);
}

.product-card:hover .product-overlay {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.2) 20%, rgba(15, 23, 42, 0.95) 100%);
}

.product-card:hover .product-tag,
.product-card:hover .product-action {
  transform: translateY(0);
  opacity: 1;
}

/* --- Supplier & Buyer Dual Sections --- */
.dual-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  position: relative;
  overflow: hidden;
}

.dual-panel {
  padding: 8.5rem 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

.dual-panel::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.panel-suppliers {
  background-color: var(--color-primary-light);
  color: var(--color-text-light);
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.panel-suppliers::after {
  background: radial-gradient(circle at 10% 20%, rgba(197, 168, 128, 0.05) 0%, transparent 50%);
}

.panel-buyers {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.panel-buyers::after {
  background: radial-gradient(circle at 90% 80%, rgba(197, 168, 128, 0.05) 0%, transparent 50%);
}

.panel-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 2rem;
}

.panel-icon svg {
  fill: currentColor;
}

.panel-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.panel-text {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 520px;
}

/* --- [NEW] Partnership Process Section --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.process-card {
  background-color: var(--color-bg-white);
  padding: 3rem 2.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

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

.process-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.process-num {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.process-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.process-card-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-card-group {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin: 2.5rem 0;
}

.contact-detail-card {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.contact-detail-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-light);
  color: var(--color-accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-icon svg {
  fill: currentColor;
}

.contact-detail-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.contact-detail-val {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
}

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

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.social-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.social-btn svg {
  fill: currentColor;
}

/* Contact Form */
.contact-form-wrapper {
  background-color: var(--color-bg-white);
  padding: 3.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.form-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2rem;
}

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

.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-text-dark);
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-accent);
  background-color: var(--color-bg-white);
  box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.15);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

.form-submit-btn {
  width: 100%;
  margin-top: 1rem;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-bg-navy);
  color: var(--color-text-light);
  padding: 5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .logo {
  margin-bottom: 1.5rem;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-column-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-link {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-info-item {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1rem;
}

.footer-info-item svg {
  fill: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.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;
}

.copyright {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Custom Dialog / Modals System --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(9, 13, 22, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  width: 100%;
  max-width: 600px;
  overflow: hidden;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 3rem;
}

.modal-overlay.open .modal-content {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

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

.modal-close-btn svg {
  fill: currentColor;
}

.modal-header {
  margin-bottom: 1.75rem;
}

.modal-tag {
  font-family: var(--font-heading);
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  display: inline-block;
  margin-bottom: 0.5rem;
}

.modal-title {
  font-size: 2rem;
  color: var(--color-primary);
  font-weight: 700;
}

.modal-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.toast {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 1rem 1.75rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  gap: 1rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success {
  border-left: 4px solid var(--color-success);
}

.toast-icon {
  color: var(--color-success);
  display: flex;
  align-items: center;
}

.toast-icon svg {
  fill: currentColor;
}

.toast-msg {
  font-size: 0.9rem;
  font-weight: 500;
}

/* --- Scroll Entrance Animations (JS Aided) --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

@media (max-width: 1200px) {
  .container {
    padding: 0 1.5rem;
  }
  .hero-title {
    font-size: 3.25rem;
  }
  .about-grid {
    gap: 4rem;
  }
  .what-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991px) {
  .section-padding {
    padding: 6rem 0; /* Slightly tighter on tablets */
  }
  .header-nav:not(.scrolled) {
    padding: 1rem 0;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: flex-start;
    padding: 6.5rem 3rem 3rem;
    gap: 2rem;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-lg);
    z-index: 1050;
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-cta {
    width: 100%;
    margin-top: 1.5rem;
  }
  
  .nav-cta .btn {
    width: 100%;
  }
  
  .hero-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  
  .hero-badge {
    margin-bottom: 1.25rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-badge-group {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 3.5rem;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
  
  .about-visual {
    max-width: 550px;
    margin: 0 auto;
    width: 100%;
  }
  
  .dual-section {
    grid-template-columns: 1fr;
  }
  
  .dual-panel {
    padding: 6rem 3rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 4.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
  }
  .hero-actions {
    flex-direction: column;
    gap: 1rem;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-badge-group {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .what-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form-wrapper {
    padding: 2rem;
  }
  
  .form-group-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  
  .modal-content {
    padding: 2.25rem 1.5rem;
    margin: 1rem;
  }
  
  .modal-title {
    font-size: 1.6rem;
  }
}