/* ==========================================================================
   ASHA SYSTEM DESIGN INC - CORE DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
  /* Color Palette - Obsidian Dark & Neon Accent */
  --bg-background: #090a0f;
  --bg-surface: #11131a;
  --bg-card: #161822;
  --bg-card-hover: #1e2230;
  --bg-muted: #1c1f2b;
  
  --color-foreground: #f8fafc;
  --color-muted-foreground: #94a3b8;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(212, 255, 50, 0.3);
  
  /* Accent Colors */
  --color-accent: #d4ff32;
  --color-accent-hover: #c2f01f;
  --color-accent-glow: rgba(212, 255, 50, 0.15);
  --color-black: #000000;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Container & Spacing */
  --site-max-width: 1280px;
  --nav-height-desktop: 86px;
  --nav-height-mobile: 72px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Shadows & Glows */
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-accent-glow: 0 0 25px rgba(212, 255, 50, 0.25);
}

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

html {
  font-family: var(--font-family);
  background-color: var(--bg-background);
  color: var(--color-foreground);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

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

/* Layout Utilities */
.site-container {
  width: 100%;
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .site-container {
    padding: 0 2rem;
  }
}

/* Typography Classes */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-foreground);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 4.25rem);
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.85rem, 3.5vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
  color: var(--color-muted-foreground);
  font-size: 1.05rem;
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* Sticky Header & Navbar */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height-desktop);
  background-color: rgba(9, 10, 15, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(9, 10, 15, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--color-foreground);
}

.brand-logo svg {
  height: 26px;
  width: auto;
  fill: currentColor;
}

/* Nav Menu Items */
.nav-menu {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(248, 250, 252, 0.85);
  border-radius: 8px;
  position: relative;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-foreground);
  background-color: var(--bg-muted);
}

/* Active Nav Link Styling */
.nav-link.active,
.nav-link.text-accent {
  color: var(--color-accent);
  font-weight: 700;
  background-color: rgba(212, 255, 50, 0.08);
}

.nav-link.active::after,
.nav-link.text-accent::after {
  content: '';
  position: absolute;
  bottom: 0px;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(212, 255, 50, 0.8);
}

.mobile-nav-item-title.active {
  color: var(--color-accent);
  font-weight: 800;
}

.nav-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  padding: 0.75rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
  pointer-events: auto;
}

.dropdown-link {
  display: block;
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted-foreground);
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  color: var(--color-foreground);
  background-color: var(--bg-muted);
}

/* Buttons & CTA */
.btn-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.6rem 0.6rem 0.6rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-black);
  background-color: var(--color-accent);
  border-radius: 9999px;
  overflow: hidden;
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.btn-cta:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent-glow);
}

/* Shine beam sweep effect */
.btn-cta::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 60%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
  transform: translateX(-150%) skewX(-20deg);
  transition: transform 0.8s ease;
  pointer-events: none;
}

.btn-cta:hover::before {
  transform: translateX(250%) skewX(-20deg);
}

.btn-icon-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: rgba(0, 0, 0, 0.9);
  border-radius: 50%;
  color: #fff;
  transition: transform var(--transition-fast);
}

.btn-cta:hover .btn-icon-circle svg {
  transform: translate(2px, -2px);
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}

@media (min-width: 992px) {
  .mobile-toggle {
    display: none;
  }
}

@media (max-width: 991px) {
  .site-header .btn-cta {
    display: none !important;
  }
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-foreground);
  border-radius: 2px;
  transition: all var(--transition-normal);
  margin: 0 auto;
}

/* Mobile Drawer Overlay */
.mobile-nav-panel {
  position: fixed;
  inset: 0;
  z-index: 90;
  background-color: var(--bg-background);
  padding: calc(var(--nav-height-mobile) + 1rem) 1.5rem 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-nav-panel.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-item-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-foreground);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.mobile-sublinks {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.5rem;
}

.mobile-sublink {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-muted-foreground);
  padding: 0.4rem 0;
}

/* Hero Section */
.section-hero {
  padding-top: calc(var(--nav-height-desktop) + 3rem);
  padding-bottom: 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 1rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  font-size: 0.9rem;
  color: var(--color-foreground);
  margin-bottom: 2rem;
}

.stars-rating {
  display: flex;
  gap: 2px;
  color: #f59e0b;
}

.hero-title {
  max-width: 900px;
  margin: 0 auto 1.5rem auto;
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  max-width: 720px;
  margin: 0 auto 2.5rem auto;
  font-size: 1.25rem;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.75rem !important;
    line-height: 1.12 !important;
    letter-spacing: -0.03em !important;
  }
  .hero-subtitle {
    font-size: 1.25rem !important;
    line-height: 1.55 !important;
  }
}

.hero-awards {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  opacity: 0.85;
}

.award-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted-foreground);
  background-color: var(--bg-surface);
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

/* Grid & Cards System */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Feature & Service Card */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background-color: var(--color-accent-glow);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--color-muted-foreground);
  margin-bottom: 1.5rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-accent);
  transition: gap var(--transition-fast);
}

.card:hover .card-link {
  gap: 0.75rem;
}

/* Section Header styling */
.section-padding {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

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

/* Case Study Showcase Card */
.case-card {
  border-radius: 20px;
  overflow: hidden;
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.case-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.case-card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  background-color: var(--bg-surface);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-card:hover .case-card-image img {
  transform: scale(1.04);
}

.case-logo-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: rgba(255, 255, 255, 0.95);
  padding: 0.75rem 1.5rem;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.case-logo-badge img {
  height: 24px;
  width: auto;
}

.case-card-content {
  padding: 1.75rem;
}

/* FAQ Accordion */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: rgba(212, 255, 50, 0.4);
}

.faq-trigger {
  width: 100%;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-foreground);
  cursor: pointer;
}

.faq-trigger svg {
  width: 22px;
  height: 22px;
  shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-muted-foreground);
}

.faq-item.active .faq-trigger svg {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 1.5rem;
}

.faq-item.active .faq-content {
  max-height: 400px;
  padding: 0 1.5rem 1.5rem 1.5rem;
}

/* CTA Banner Box */
.cta-box {
  background: linear-gradient(135deg, var(--bg-surface) 0%, #171b26 100%);
  border: 1px solid var(--color-border);
  border-radius: 28px;
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 300px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* Form Styles */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  text-align: left;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-foreground);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-foreground);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-glow);
}

/* Footer */
.site-footer {
  background-color: #06070a;
  border-t: 1px solid var(--color-border);
  padding: 4rem 0 2rem 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--color-muted-foreground);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-muted-foreground);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* Success Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border-hover);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  transform: scale(0.95);
  animation: modalScaleUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalScaleUp {
  to {
    transform: scale(1);
  }
}

.modal-icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: rgba(212, 255, 50, 0.1);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.modal-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--color-foreground);
}

.modal-text {
  color: var(--color-muted-foreground);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}