/* ==========================================================================
   REXX PORTFOLIO - SERENE LIQUID GLASS DESIGN SYSTEM
   Featuring Peaceful Ambient Gradient Canvas, High Crystal Transparency,
   and 100% Unified Typography (Plus Jakarta Sans)
   ========================================================================== */

/* Apple SF Pro System Font - Built into Apple devices, gracefully falls back on all platforms */

/* --- Root Serene Shader Tokens --- */
:root {
  /* Serene & Peaceful Ambient Canvas Background */
  --bg-primary: #EEF4FE;
  --bg-secondary: #E8F0FE;
  --bg-tertiary: #E0ECFE;

  /* Peaceful Soft Color Palette */
  --accent-blue: #0055FF;
  --accent-blue-hover: #0044CC;
  --accent-teal: #00B894;
  --accent-indigo: #6366F1;
  --accent-cyan: #00D2FF;
  --accent-dark: #0F172A;
  
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;

  /* HIGH TRANSPARENCY LIQUID GLASS TOKENS */
  --liquid-glass-bg: rgba(255, 255, 255, 0.42);
  --liquid-glass-bg-hover: rgba(255, 255, 255, 0.62);
  --liquid-glass-border: rgba(255, 255, 255, 0.9);
  --liquid-glass-shadow: 0 20px 40px -8px rgba(0, 85, 255, 0.08), 0 1px 3px rgba(0, 0, 0, 0.03), inset 0 1px 2px rgba(255, 255, 255, 0.95);
  --liquid-glass-shadow-hover: 0 30px 60px -10px rgba(0, 85, 255, 0.18), inset 0 1px 3px rgba(255, 255, 255, 1);
  --glass-blur: blur(28px) saturate(210%);

  /* Apple SF Pro System Font Stack */
  --font-main: -apple-system, 'SF Pro Text', BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: -apple-system, 'SF Pro Display', BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-pill: 999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  /* Peaceful, Serene & Attractive Ambient Mesh Background */
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 210, 255, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(99, 102, 241, 0.16) 0%, transparent 50%),
    radial-gradient(circle at 50% 60%, rgba(0, 85, 255, 0.12) 0%, transparent 55%),
    radial-gradient(circle at 20% 90%, rgba(0, 184, 148, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 80% 85%, rgba(147, 197, 253, 0.2) 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.55;
  overflow-x: hidden;
}

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

button, input, textarea, select {
  font-family: var(--font-main) !important;
  font-size: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
}

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

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Typography Utilities --- */
.text-blue { color: var(--accent-blue); }
.text-teal { color: var(--accent-teal); }
.text-indigo { color: var(--accent-indigo); }
.text-red { color: var(--accent-red); }

/* --- Section Headings --- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.48);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  box-shadow: 0 6px 20px rgba(0, 85, 255, 0.06), inset 0 1px 1px rgba(255, 255, 255, 0.95);
  color: var(--accent-blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 10px;
  letter-spacing: -0.018em;
  color: var(--text-primary);
}

.section-desc {
  color: var(--text-secondary);
  font-size: 0.84rem;
  max-width: 560px;
  margin-bottom: 26px;
}

.text-center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ==========================================================================
   TRANSPARENT LIQUID GLASS BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.88rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

/* Translucent Blue Liquid Button */
.btn-blue {
  background: linear-gradient(135deg, rgba(0, 85, 255, 0.82), rgba(0, 110, 255, 0.76)) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: #FFFFFF !important;
  border: 1px solid rgba(255, 255, 255, 0.6) !important;
  box-shadow: 0 10px 25px -4px rgba(0, 85, 255, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.7) !important;
}

.btn-blue:hover {
  transform: translateY(-3px) scale(1.02);
  background: linear-gradient(135deg, rgba(0, 85, 255, 0.95), rgba(0, 68, 204, 0.9)) !important;
  box-shadow: 0 15px 35px -4px rgba(0, 85, 255, 0.48), inset 0 1px 3px rgba(255, 255, 255, 0.9) !important;
}

/* Translucent Black Liquid Button */
.btn-black {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.8)) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: #FFFFFF !important;
  border: 1px solid rgba(255, 255, 255, 0.35) !important;
  box-shadow: 0 10px 25px -4px rgba(15, 23, 42, 0.22), inset 0 1px 2px rgba(255, 255, 255, 0.5) !important;
}

.btn-black:hover {
  transform: translateY(-3px) scale(1.02);
  background: linear-gradient(135deg, rgba(0, 85, 255, 0.9), rgba(15, 23, 42, 0.9)) !important;
  box-shadow: 0 15px 35px -4px rgba(0, 85, 255, 0.35), inset 0 1px 3px rgba(255, 255, 255, 0.7) !important;
}

/* Translucent Glass Outline Button */
.btn-outline {
  background: rgba(255, 255, 255, 0.42) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--text-primary) !important;
  border: 1px solid var(--liquid-glass-border) !important;
  box-shadow: 0 8px 20px -3px rgba(0, 0, 0, 0.04), inset 0 1px 1px rgba(255, 255, 255, 0.95) !important;
}

.btn-outline:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.7) !important;
  border-color: var(--accent-blue) !important;
  color: var(--accent-blue) !important;
  box-shadow: 0 12px 30px -4px rgba(0, 85, 255, 0.15), inset 0 1px 2px rgba(255, 255, 255, 1) !important;
}

.btn-sm {
  padding: 7px 18px;
  font-size: 0.8rem;
}

/* ==========================================================================
   DYNAMIC COLLAPSING LIQUID GLASS NAVBAR
   ========================================================================== */
.navbar-wrapper {
  position: fixed;
  top: 18px;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 0 20px;
  pointer-events: none;
}

.navbar-liquid {
  pointer-events: auto;
  width: 100%;
  max-width: 1060px;
  height: 60px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  box-shadow: var(--liquid-glass-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px 0 10px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

/* Specular Glare Reflection */
.navbar-liquid::after {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 1), transparent);
  pointer-events: none;
}

/* Collapsed State on Scroll Down */
.navbar-liquid.collapsed {
  max-width: 260px;
  padding: 0 16px;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 20px 45px -5px rgba(0, 85, 255, 0.16), inset 0 1px 2px rgba(255, 255, 255, 0.95);
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  transition: all var(--transition-normal);
}

.navbar-liquid.collapsed .logo-brand {
  margin: 0 auto 0 0;
}


.logo-brand:hover .logo-avatar-img {
  transform: scale(1.08) rotate(-4deg);
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  /* JS handles transitions inline for the name swap animation */
}

/* Logo name flip transition */
.logo-text.flip-out {
  opacity: 0;
  transform: translateY(-8px) scale(0.92);
}
.logo-text.flip-in {
  opacity: 0;
  transform: translateY(8px) scale(0.92);
}
.logo-text.flip-in.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Logo image flip animation */
.logo-avatar-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.15));
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}
.logo-avatar-img.flip-logo {
  transform: rotateY(90deg);
  opacity: 0;
}


.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  transition: all var(--transition-normal);
}

.navbar-liquid.collapsed .nav-links {
  opacity: 0;
  visibility: hidden;
  max-width: 0;
  pointer-events: none;
  margin: 0;
  padding: 0;
  transform: scale(0.9);
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.6);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-liquid.collapsed .btn-hire-desktop {
  display: none !important;
}

/* Three lines hamburger button */
.menu-toggle-btn {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  border: 1px solid var(--liquid-glass-border);
  color: var(--text-primary);
  font-size: 1.1rem;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04), inset 0 1px 1px rgba(255, 255, 255, 0.95);
  transition: all var(--transition-fast);
}

.menu-toggle-btn:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--accent-blue);
}

.navbar-liquid.collapsed .menu-toggle-btn {
  display: flex !important;
}

/* Transparent Glass Overlay Dropdown Menu */
.mobile-menu-overlay {
  position: fixed;
  top: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  width: 90%;
  max-width: 400px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--liquid-glass-shadow-hover);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-normal);
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mobile-menu-link {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
  transition: all var(--transition-fast);
}

.mobile-menu-link:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
}

/* ==========================================================================
   HERO SECTION (CLEAN & SERENE)
   ========================================================================== */
.hero {
  padding-top: 140px;
  padding-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}

.hero-bg-glow-1 {
  top: -80px;
  right: -80px;
  background: var(--accent-blue);
}

.hero-bg-glow-2 {
  bottom: 0;
  left: -120px;
  background: var(--accent-teal);
}

/* ==========================================================================
   DEEP BLUE SKY CLOUD BACKGROUND — Hero Section
   ========================================================================== */

.hero.hero-sunset-bg {
  padding-top: 120px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  /* Use uploaded deep blue sky & white clouds image as background */
  background: url('../assets/deep_blue_sky_clouds.png') center center / cover no-repeat !important;
  animation: skyPan 50s ease-in-out infinite alternate;
}

/* Gentle floating pan animation for sky image */
@keyframes skyPan {
  0% {
    background-position: 0% 40%;
    transform: scale(1);
  }
  50% {
    background-position: 100% 60%;
    transform: scale(1.03);
  }
  100% {
    background-position: 0% 40%;
    transform: scale(1);
  }
}

/* Subtle glass overlay for smooth section transition at bottom */
.sunset-ambient-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 40, 95, 0.25) 0%,
    rgba(0, 0, 0, 0) 50%,
    rgba(238, 244, 254, 0.6) 100%
  );
  pointer-events: none;
  z-index: 1;
}

/* High-Transparency Liquid Glass Card behind Hero Title */
.hero-glass-text-card {
  display: inline-block;
  padding: 24px 34px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.22) !important;
  backdrop-filter: blur(28px) saturate(210%);
  -webkit-backdrop-filter: blur(28px) saturate(210%);
  border: 1px solid rgba(255, 255, 255, 0.75) !important;
  box-shadow: 
    0 20px 45px -10px rgba(0, 30, 80, 0.25),
    inset 0 1.5px 2px rgba(255, 255, 255, 0.95),
    inset 0 -1px 2px rgba(255, 255, 255, 0.3);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

/* Subtle glass glare reflection across the card */
.hero-glass-text-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 1), transparent);
  pointer-events: none;
}

.hero-glass-text-card:hover {
  background: rgba(255, 255, 255, 0.32) !important;
  transform: translateY(-2px);
  box-shadow: 0 25px 55px -10px rgba(0, 30, 80, 0.35), inset 0 2px 4px rgba(255, 255, 255, 1);
}

/* Hero Title Styling for Deep Blue Sky & Glass Contrast */
.hero-title-sunset {
  color: #FFFFFF !important;
  text-shadow: 0 2px 10px rgba(15, 23, 42, 0.5);
  margin-bottom: 0 !important;
}

.text-highlight-gold {
  color: #00E5FF !important;
  background: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 10px rgba(0, 242, 254, 0.6));
}






.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  color: #0F172A;
}

.hero-role-wrapper {
  display: inline-block;
  color: var(--accent-blue);
}

.hero-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 26px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Serene Profile Frame */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.profile-card-frame {
  position: relative;
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 14px;
  border: 1px solid var(--liquid-glass-border);
  box-shadow: var(--liquid-glass-shadow);
  transition: all var(--transition-normal);
}

.profile-card-frame:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.58);
  box-shadow: var(--liquid-glass-shadow-hover);
}

.profile-image-box {
  width: 100%;
  height: 420px;
  border-radius: 22px;
  overflow: hidden;
  position: relative;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.profile-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* ==========================================================================
   SERVICES SECTION (LIQUID GLASS CARDS)
   ========================================================================== */
.services-section {
  padding: 80px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.service-card {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: all var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: var(--liquid-glass-shadow);
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 1), transparent);
}

.service-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.62);
  border-color: rgba(255, 255, 255, 1);
  box-shadow: var(--liquid-glass-shadow-hover);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(0, 85, 255, 0.1);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 85, 255, 0.25);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #0F172A;
}

.service-text {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.service-pill {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--accent-blue);
}

/* ==========================================================================
   LIVE AI AGENT SIMULATOR SECTION
   ========================================================================== */
.ai-section {
  padding: 80px 0;
}

.ai-container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.ai-chat-box {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--liquid-glass-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 470px;
}

.chat-header {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-bot-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-bot-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.8rem;
  box-shadow: 0 4px 10px rgba(0, 85, 255, 0.3);
}

.chat-bot-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: #0F172A;
}

.chat-status {
  font-size: 0.72rem;
  color: var(--accent-teal);
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
}

.chat-body {
  flex-grow: 1;
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: rgba(255, 255, 255, 0.15);
}

.chat-msg {
  max-width: 85%;
  padding: 11px 16px;
  border-radius: 16px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.chat-msg.bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.95);
  color: var(--text-primary);
  border-bottom-left-radius: 3px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04), inset 0 1px 1px rgba(255, 255, 255, 0.95);
}

.chat-msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(0, 85, 255, 0.88), rgba(0, 110, 255, 0.85));
  backdrop-filter: blur(14px);
  color: #fff;
  border-bottom-right-radius: 3px;
  box-shadow: 0 4px 15px rgba(0, 85, 255, 0.35);
}

.chat-presets {
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.5);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
}

.preset-chip {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--accent-blue);
}

.chat-footer {
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.5);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
}

.chat-input {
  flex-grow: 1;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.95);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.03);
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  font-size: 0.85rem;
}

.chat-send-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(0, 85, 255, 0.35);
}

/* ==========================================================================
   TECH STACK & SKILLS MATRIX
   ========================================================================== */
.skills-section {
  padding: 80px 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--liquid-glass-shadow);
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--liquid-glass-shadow-hover);
}

.skill-cat-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #0F172A;
}

.skill-cat-icon {
  color: var(--accent-blue);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-badge-level {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(0, 85, 255, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(0, 85, 255, 0.25);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   PORTFOLIO SHOWCASE
   ========================================================================== */
.portfolio-section {
  padding: 80px 0;
}

.portfolio-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03), inset 0 1px 1px rgba(255, 255, 255, 0.95);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.82rem;
  transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--accent-blue);
  box-shadow: 0 8px 20px rgba(0, 85, 255, 0.3);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.project-card {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--liquid-glass-shadow);
}

.project-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--liquid-glass-shadow-hover);
}

.project-img-wrapper {
  width: 100%;
  height: 210px;
  overflow: hidden;
  position: relative;
}

.project-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #0F172A;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 16px;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.85);
  color: var(--text-muted);
}

/* ==========================================================================
   INTERACTIVE COST ESTIMATOR
   ========================================================================== */
.estimator-section {
  padding: 80px 0;
}

.estimator-card {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  box-shadow: var(--liquid-glass-shadow);
}

.estimator-options {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.estimator-group-title {
  font-weight: 700;
  font-size: 0.98rem;
  margin-bottom: 12px;
  color: #0F172A;
}

.estimator-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.estimator-chip {
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.95);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.estimator-chip.selected {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  box-shadow: 0 8px 20px rgba(0, 85, 255, 0.3);
}

/* Translucent Dark Glass Summary Box */
.estimator-summary {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.8));
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2), inset 0 1px 2px rgba(255, 255, 255, 0.35);
}

.est-total-title {
  font-size: 0.8rem;
  color: #94A3B8;
  text-transform: uppercase;
}

.est-total-price {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  color: #FFFFFF;
  margin: 8px 0;
}

.est-detail-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  color: #CBD5E1;
}

/* ==========================================================================
   CONTACT & FOOTER SECTION
   ========================================================================== */
.contact-section {
  padding: 80px 0 50px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 18px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--liquid-glass-border);
  box-shadow: var(--liquid-glass-shadow);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 85, 255, 0.1);
  border: 1px solid rgba(0, 85, 255, 0.25);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-form {
  background: rgba(255, 255, 255, 0.42);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--liquid-glass-shadow);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #0F172A;
}

.form-input {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.95);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.03);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-blue);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 15px rgba(0, 85, 255, 0.15);
}

footer {
  padding: 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(16px);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.12));
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(12px);
  border: 1px solid var(--liquid-glass-border);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04), inset 0 1px 1px rgba(255, 255, 255, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0F172A;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.social-icon:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

/* Modal View */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(14px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--liquid-glass-border);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 30px;
  position: relative;
  box-shadow: 0 30px 60px rgba(0, 85, 255, 0.25);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 992px) {
  .hero-grid, .ai-container, .estimator-card, .contact-grid {
    grid-template-columns: 1fr;
  }
  .navbar-liquid {
    max-width: 100%;
  }
  .nav-links {
    display: none;
  }
  .menu-toggle-btn {
    display: flex !important;
  }
  .btn-hire-desktop {
    display: none !important;
  }
}