/* Base / CSS Variables */
:root {
  /* Colors */
  --primary-blue: #003366;
  --accent-yellow: #FFC107;
  --secondary-orange: #FF6B35;
  --bg-light: #F5F5F5;
  --text-dark: #333333;
  --text-white: #FFFFFF;
  --border-color: #E0E0E0;
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
  
  /* Layout Transitions */
  --transition: all 0.3s ease;
  --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 20px 40px rgba(0,0,0,0.15);
  --border-radius: 8px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--text-white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; line-height: 1.2; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

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

ul { list-style: none; }

.text-center { text-align: center; }
.text-white { color: var(--text-white) !important; }
.text-red { color: #dc3545; }
.text-green { color: #28a745; }

.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

/* Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 5px;
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--text-white);
  box-shadow: 0 4px 6px rgba(0, 51, 102, 0.3);
}

.btn-primary:hover {
  background-color: #002244;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 51, 102, 0.4);
}

.btn-secondary {
  background-color: var(--accent-yellow);
  color: var(--text-dark);
  box-shadow: 0 4px 6px rgba(255, 193, 7, 0.3);
}

.btn-secondary:hover {
  background-color: #e0a800;
  transform: translateY(-2px);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Cards */
.card {
  background: var(--text-white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.border-blue { border-top: 4px solid var(--primary-blue); }
.border-yellow { border-top: 4px solid var(--accent-yellow); }
.border-orange { border-top: 4px solid var(--secondary-orange); }

/* Header */
.sticky-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-blue);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 600;
  color: var(--text-dark);
}

.nav-links a:hover {
  color: var(--secondary-orange);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hamburger {
  display: none;
  font-size: 1.5rem;
  color: var(--primary-blue);
  background: none;
  border: none;
  cursor: pointer;
}

/* Layouts */
.two-col-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.three-col-layout.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

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

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

/* Specific Sections */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--primary-blue) 0%, rgba(0,51,102,0.8) 100%), url('https://gulshan-international.pages.dev/assets/images/machine-bg.jpg') center/cover;
  color: var(--text-white);
  padding-top: 80px;
}

.hero-title {
  color: var(--text-white);
  margin-bottom: 1rem;
}

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

.hero-subtitle {
  color: var(--text-white);
  font-weight: 400;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: 1rem;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator a {
  color: var(--text-white);
  font-size: 2rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {transform: translateY(0) translateX(-50%);}
  40% {transform: translateY(-15px) translateX(-50%);}
  60% {transform: translateY(-7px) translateX(-50%);}
}

/* Placeholders */
.img-placeholder {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: var(--border-radius);
  color: var(--text-dark);
  font-weight: 600;
  padding: 1rem;
  text-align: center;
  background: #EEE;
  border: 1px dashed #CCC;
}
.large-placeholder {
  min-height: 400px;
}

/* Animations JS classes */
.hidden { display: none !important; }
.animate-on-scroll { opacity: 0; transition: all 0.8s ease-out; }
.fade-in-up { transform: translateY(30px); }
.slide-in-left { transform: translateX(-50px); }
.slide-in-right { transform: translateX(50px); }
.zoom-in { transform: scale(0.9); }
.is-visible { opacity: 1; transform: translate(0) scale(1); }

/* Problem section */
.images-flow { display: flex; align-items: center; justify-content: center; gap: 1rem; }
.images-flow .img-placeholder { width: 100px; height: 100px; }

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}
.feature-item i { color: var(--primary-blue); margin-right: 8px; }
.key-advantages { background: var(--bg-light); padding: 1.5rem; border-radius: var(--border-radius); }
.advantage { margin-bottom: 0.5rem; color: var(--secondary-orange); }

/* Application Cards */
.image-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.image-grid .grid-item { min-height: 120px; }

/* Financial metrics */
.metric-box { text-align: center; padding: 2rem; border-radius: var(--border-radius); color: var(--text-white); }
.metric-box h3 { font-size: 3rem; margin: 1rem 0; color: var(--text-white); }
.box-blue { background: var(--primary-blue); }
.box-yellow { background: var(--accent-yellow); color: var(--text-dark); }
.box-yellow h3, .box-yellow p { color: var(--text-dark) !important; }
.box-orange { background: var(--secondary-orange); }

/* Financial Table */
.table-container { overflow-x: auto; }
.financial-table { width: 100%; border-collapse: collapse; background: white; margin-top: 1rem; box-shadow: var(--shadow-sm); }
.financial-table th, .financial-table td { padding: 1rem; border: 1px solid var(--border-color); text-align: left; }
.financial-table th { background: var(--primary-blue); color: white; }

/* Team Section */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.team-card { text-align: center; border: none; }
.member-img.avatar { width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 1.5rem; background: var(--accent-yellow); color: var(--primary-blue); }
.team-card .role { color: var(--secondary-orange); font-weight: 600; margin-bottom: 1rem; }
.member-details { font-size: 0.9rem; }
.highlight-detail { margin-top: 0.5rem; font-weight: 600; color: var(--primary-blue); }

/* Forms */
.form-container { background: white; padding: 2.5rem; border-radius: var(--border-radius); max-width: 600px; margin: 0 auto; box-shadow: var(--shadow-lg); }
.form-group { margin-bottom: 1.5rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 1rem; border: 1px solid var(--border-color);
  border-radius: 5px; font-family: var(--font-body); outline: none; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary-blue); box-shadow: 0 0 0 2px rgba(0,51,102,0.1);
}
.form-success { background: #d4edda; color: #155724; padding: 1rem; border-radius: 5px; margin-top: 1rem; }

/* Footer */
.footer { background: var(--primary-blue); color: white; padding: 4rem 0 2rem; }
.footer h4 { color: var(--accent-yellow); margin-bottom: 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
.footer-logo { font-family: var(--font-heading); font-weight: 700; color: white; font-size: 1.5rem; display: block; margin-bottom: 1rem; }
.footer-links ul li { margin-bottom: 0.5rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2rem; font-size: 0.8rem; }
.newsletter-form { display: flex; }
.newsletter-form input { padding: 0.5rem; border: none; border-radius: 4px 0 0 4px; outline: none; flex: 1; }
.newsletter-form button { border-radius: 0 4px 4px 0; padding: 0.6rem 1rem; }

/* Miscellaneous fixes */
.cta-section { background: var(--secondary-orange); color: white; }
.contact-grid { display: flex; justify-content: center; gap: 2rem; margin-top: 2rem; color: white; font-size: 1.2rem; }
.contact-item i { margin-right: 10px; }
.funds-bar-wrapper { border-radius: 20px; overflow: hidden; height: 40px; display: flex; background: var(--border-color); }
.fund-bar { display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; font-size: 0.8rem; height: 100%; transition: width 1s ease-in-out; }
.bar-80 { background: var(--primary-blue); width: 0; }
.bar-20 { background: var(--accent-yellow); color: var(--primary-blue); width: 0; }
.quadrant-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.quadrant { padding: 2rem; border-radius: var(--border-radius); color: white; }
.quadrant.red { background: #E74C3C; }
.quadrant.blue { background: #3498DB; }
.quadrant.orange {background: #F39C12; }
.quadrant.green { background: #2ECC71; }
.quadrant ul { padding-left: 1.5rem; list-style-type: disc; }