/* ==========================================================================
   CSS Variables & Tokens
   ========================================================================== */
:root {
  /* Color Palette */
  --clr-primary: #1f3f68; /* Deep corporate blue */
  --clr-primary-light: #3a6ea5;
  --clr-accent: #673de6; /* Modern purple accent */
  --clr-accent-light: #8a64f8;

  --clr-bg: #fafbff;
  --clr-surface: #ffffff;
  --clr-surface-glass: rgba(255, 255, 255, 0.85);

  --clr-text: #333333;
  --clr-text-light: #727586;
  --clr-text-inverse: #ffffff;

  --clr-border: #e5e9f2;

  /* Typography */
  --font-main: "Outfit", sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-main: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadow */
  --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 15px 35px rgba(31, 63, 104, 0.12);
  --shadow-lg: 0 25px 50px rgba(31, 63, 104, 0.18);
  --shadow-hover: 0 30px 60px rgba(103, 61, 230, 0.25);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-main);
  color: var(--clr-text);
  background-color: var(--clr-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-primary);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.subtitle {
  display: block;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.title-line {
  width: 60px;
  height: 4px;
  background: var(--clr-accent);
  background: linear-gradient(
    90deg,
    var(--clr-accent),
    var(--clr-primary-light)
  );
  border-radius: 4px;
  margin-bottom: 2rem;
}

.center-line {
  margin: 0 auto 2rem;
}

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

.section {
  padding: 8rem 0;
}

.bg-light {
  background-color: #f1f4fa;
}

.center {
  text-align: center;
}

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
  border: 2px solid transparent;
  transition: var(--transition-main);
}

.btn-primary {
  background-color: var(--clr-accent);
  color: var(--clr-text-inverse);
  box-shadow: 0 4px 14px rgba(103, 61, 230, 0.3);
}

.btn-primary:hover {
  background-color: var(--clr-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(103, 61, 230, 0.4);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--clr-text-inverse);
  color: var(--clr-text-inverse);
}

.btn-outline:hover {
  background-color: var(--clr-text-inverse);
  color: var(--clr-primary);
}

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

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

/* Glass Panel */
.glass-panel {
  background: var(--clr-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 3rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--clr-primary);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 1rem;
  background-color: #fcfcfd;
  transition: var(--transition-main);
  color: var(--clr-text);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(103, 61, 230, 0.1);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: var(--transition-main);
  /* Initial state transparent */
  background: transparent;
}

.header.scrolled {
  background: var(--clr-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo-img {
  height: 65px;
  width: auto;
  transition: var(--transition-main);
}

.logo-dark {
  display: none;
}

.header.scrolled .logo-light {
  display: none;
}

.header.scrolled .logo-dark {
  display: block;
}

.navbar {
  display: flex;
  align-items: center;
  gap: 2rem;
}

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

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

.header.scrolled .nav-link {
  color: var(--clr-primary);
}

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

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

.header.scrolled .btn-primary {
  background-color: var(--clr-primary);
  box-shadow: none;
}
.header.scrolled .btn-primary:hover {
  background-color: var(--clr-accent);
}

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--clr-text-inverse);
  cursor: pointer;
}
.header.scrolled .mobile-menu-toggle {
  color: var(--clr-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Gradient overlay to make text readable */
  background: linear-gradient(
    135deg,
    rgba(31, 63, 104, 0.9) 0%,
    rgba(31, 63, 104, 0.6) 50%,
    rgba(31, 63, 104, 0.3) 100%
  );
}

.hero-content {
  max-width: 800px;
  color: var(--clr-text-inverse);
  z-index: 1;
}

.badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  color: var(--clr-text-inverse);
  font-size: clamp(3rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
  line-height: 1.1;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

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

/* ==========================================================================
   About Section
   ========================================================================== */
.about-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.8s ease;
}

.image-wrapper:hover img {
  transform: scale(1.05);
}

.experience-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--clr-accent);
  color: white;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 10px 25px rgba(103, 61, 230, 0.4);
  border: 8px solid var(--clr-bg);
}

.experience-badge .number {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.experience-badge .text {
  font-size: 0.85rem;
  text-align: center;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 5px;
}

.about-text p {
  color: var(--clr-text-light);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.feature-list {
  margin-top: 2rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-weight: 500;
  color: var(--clr-primary);
}

.feature-list i {
  color: var(--clr-accent);
  font-size: 1.25rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.service-card {
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition-main);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: linear-gradient(
    135deg,
    var(--clr-primary) 0%,
    var(--clr-accent) 100%
  );
  z-index: -1;
  transition: var(--transition-main);
  opacity: 0;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
  height: 100%;
  opacity: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  background-color: rgba(103, 61, 230, 0.1);
  color: var(--clr-accent);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  transition: var(--transition-main);
}

.service-card:hover .service-icon {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--clr-text-inverse);
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  transition: var(--transition-main);
}

.service-desc {
  color: var(--clr-text-light);
  font-size: 0.95rem;
  transition: var(--transition-main);
}

.service-card:hover .service-title,
.service-card:hover .service-desc {
  color: var(--clr-text-inverse);
}

/* ==========================================================================
   Partners Section
   ========================================================================== */
.partners-logo-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 4rem;
  margin-top: 3rem;
}

.partner-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 80px;
  width: 180px;
  filter: grayscale(100%) opacity(0.6);
  transition: var(--transition-main);
}

.partner-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.partner-logo:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-desc {
  color: var(--clr-text-light);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}

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

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.info-item i {
  width: 50px;
  height: 50px;
  background: var(--clr-surface);
  color: var(--clr-accent);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.info-item h4 {
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.info-item p {
  color: var(--clr-text-light);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  position: relative;
  padding-top: 5rem;
  color: rgba(255, 255, 255, 0.8);
  overflow: hidden;
}

.footer-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: var(--clr-primary);
}

.footer-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo {
  height: 85px;
  margin-bottom: 1.5rem;
}

.footer-links h3,
.footer-social h3 {
  color: var(--clr-text-inverse);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links a:hover {
  color: var(--clr-text-inverse);
  padding-left: 5px;
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--clr-text-inverse);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-main);
}

.social-icons a:hover {
  background: var(--clr-accent);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: var(--transition-slow);
}

.scroll-reveal.left {
  transform: translateX(-40px);
}

.scroll-reveal.right {
  transform: translateX(40px);
}

.scroll-reveal.active {
  opacity: 1;
  transform: translate(0, 0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media screen and (max-width: 992px) {
  .about-container,
  .contact-container {
    grid-template-columns: 1fr;
  }

  .about-image {
    order: -1;
  }

  .experience-badge {
    width: 120px;
    height: 120px;
    right: -10px;
    bottom: -10px;
  }
  .experience-badge .number {
    font-size: 2rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media screen and (max-width: 768px) {
  .navbar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--clr-surface);
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition-main);
    z-index: 999;
  }

  .navbar.active {
    right: 0;
  }

  .nav-menu {
    flex-direction: column;
    width: 100%;
    text-align: center;
  }

  .nav-link {
    color: var(--clr-primary);
    font-size: 1.25rem;
  }

  .mobile-menu-toggle {
    display: block;
    z-index: 1000;
    position: relative;
  }

  /* When menu is open, toggle needs to be dark */
  .mobile-menu-toggle.active i {
    color: var(--clr-primary);
  }
  .mobile-menu-toggle.active i::before {
    content: "\f00d"; /* FontAwesome times icon */
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn-outline {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
  }
}