/* ===========================
   Modern RightSolution Design
   =========================== */

:root {
  /* Color Palette */
  --color-primary: #0b6fa4;
  --color-secondary: #e07a5f;
  --color-dark: #1a1a1a;
  --color-light: #f8f9fa;
  --color-gray: #6c757d;
  --color-border: #e0e0e0;
  --color-white: #ffffff;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Effects */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.3rem; }

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-secondary);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ===== NAVBAR ===== */
.navbar {
  background: linear-gradient(180deg, rgba(220, 225, 235, 0.95) 0%, rgba(205, 215, 230, 0.92) 100%);
  color: var(--color-dark);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(11, 111, 164, 0.2);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
  text-decoration: none;
  transition: var(--transition-fast);
  margin-right: auto;
  padding-left: var(--spacing-md);
}

.nav-brand:hover {
  transform: scale(1.05);
}

.nav-logo-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 1.5px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--color-dark);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  position: relative;
  border: 1px solid transparent;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1.1rem;
  width: calc(100% - 2.2rem);
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav-link:hover {
  background-color: rgba(11, 111, 164, 0.08);
  color: var(--color-primary);
  border-color: rgba(11, 111, 164, 0.2);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0d7cb8 100%) !important;
  color: var(--color-white) !important;
  padding: 0.65rem 1.8rem !important;
  border-radius: var(--radius-lg);
  border: 1.5px solid rgba(11, 111, 164, 0.5) !important;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 15px rgba(11, 111, 164, 0.25);
  font-size: 0.95rem;
}

.nav-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(11, 111, 164, 0.4);
  border-color: rgba(11, 111, 164, 0.8) !important;
  background: linear-gradient(135deg, #0d7cb8 0%, var(--color-primary) 100%) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: var(--transition-fast);
}

.nav-toggle:hover {
  opacity: 0.7;
}

.nav-toggle span {
  width: 26px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: 2px;
  transition: var(--transition-fast);
  display: block;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  width: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -8px);
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  overflow: hidden;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-dark);
}

.slider-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
  z-index: 10;
}

.slide img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.2) 100%);
  z-index: 1;
}

.slide-content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  animation: slideInUp 0.8s ease;
}

.slide-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.slide-content p {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slider-controls {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.slider-btn {
  background-color: rgba(255, 255, 255, 0.25);
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.slider-btn:hover {
  background-color: rgba(255, 255, 255, 0.4);
  border-color: var(--color-white);
}

.slider-btn svg {
  width: 20px;
  height: 20px;
}

.slider-dots {
  display: flex;
  gap: var(--spacing-xs);
  justify-content: center;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
  padding: 0;
}

.slider-dot.active {
  background-color: var(--color-white);
  width: 24px;
  border-radius: 5px;
}

/* ===== MAIN SECTIONS ===== */
main {
  background: var(--color-white);
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--color-gray);
  font-size: 1.1rem;
  margin: 0;
}

/* ===== SERVICES SECTION ===== */
.services-section {
  background: var(--color-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

/* ===== PROJECTS SECTION ===== */
.projects-section {
  background: var(--color-white);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
}

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

.project-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: var(--transition);
}

.project-card figcaption {
  padding: var(--spacing-md);
  background: var(--color-light);
  text-align: center;
  font-weight: 500;
  color: var(--color-dark);
}

/* ===== ABOUT SECTION ===== */
.about-section {
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-gray);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
  background: var(--color-light);
}

.contact-form {
  max-width: 600px;
  margin-top: var(--spacing-lg);
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #999;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(11, 111, 164, 0.1);
}

.contact-form button {
  margin-top: var(--spacing-md);
}

/* ===== BUTTONS ===== */
.btn {
  padding: 0.75rem 1.75rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: #094c7a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11, 111, 164, 0.3);
}

.btn-light {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-content p {
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--color-secondary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.footer-link:hover {
  opacity: 0.8;
  transform: translateY(-2px);
}

.footer-icon {
  font-size: 1.2rem;
  line-height: 1;
  vertical-align: middle;
}

.gmail-icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  fill: currentColor;
  vertical-align: middle;
  margin-right: 2px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  /* Navbar */
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(220, 225, 235, 0.95) 0%, rgba(205, 215, 230, 0.92) 100%);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    border-top: 1px solid rgba(11, 111, 164, 0.2);
  }

  .nav-menu[aria-expanded="true"] {
    max-height: 500px;
  }

  .nav-menu li {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(11, 111, 164, 0.08);
  }

  .nav-link {
    display: block;
    width: 100%;
    color: var(--color-dark);
  }

  .nav-link::after {
    display: none;
  }

  .nav-cta {
    margin: var(--spacing-md);
    display: block;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
  }

  /* Hero */
  .hero {
    height: 400px;
  }

  .slide-content h1 {
    font-size: 2rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .slider-controls {
    bottom: 20px;
    gap: var(--spacing-md);
  }

  /* Sections */
  .section {
    padding: var(--spacing-lg) 0;
  }

  .section h2 {
    font-size: 1.5rem;
  }

  /* Grids */
  .services-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* Forms */
  .contact-form {
    padding: 0 var(--spacing-md);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.3rem; }
  h3 { font-size: 1.1rem; }

  .slide-content h1 {
    font-size: 1.5rem;
  }

  .slide-content p {
    font-size: 0.9rem;
  }

  .slider-controls {
    gap: var(--spacing-sm);
  }

  .slider-btn {
    width: 36px;
    height: 36px;
  }

  .btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
  }

  .footer-links {
    gap: var(--spacing-sm);
  }
}