/* ==========================================================================
   PRABHU MAHAT CHHETRY - HIGH-END PROFESSIONAL DEVELOPER PORTFOLIO STYLESHEET
   Pure CSS3 Implementation, 100% Responsive, Zero Framework Dependencies
   ========================================================================== */

/* 1. DESIGN SYSTEM VARIABLES */
:root {
  /* Font Families */
  --font-sans: 'Plus Jakarta Sans', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* 1.1 DARK THEME (Default) */
html[data-theme="dark"] {
  --bg-primary: #0a0f1d;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  
  --card-bg: rgba(15, 23, 42, 0.8);
  --card-hover-bg: rgba(30, 41, 59, 0.9);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(16, 185, 129, 0.4);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #10b981; /* Emerald */
  --accent-secondary: #6366f1; /* Indigo */
  --accent-glow: rgba(16, 185, 129, 0.15);
  --accent-light: rgba(16, 185, 129, 0.1);
  
  --header-bg: rgba(10, 15, 29, 0.8);
  --input-bg: #090d16;
  --input-border: rgba(255, 255, 255, 0.1);
  --success-bg: rgba(16, 185, 129, 0.1);
  
  --gradient-1: linear-gradient(135deg, #10b981 0%, #6366f1 100%);
}

/* 1.2 LIGHT THEME */
html[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  
  --card-bg: #ffffff;
  --card-hover-bg: #f8fafc;
  --border-color: #e2e8f0;
  --border-hover: rgba(16, 185, 129, 0.6);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent-primary: #059669; /* Rich Emerald */
  --accent-secondary: #4f46e5; /* Rich Indigo */
  --accent-glow: rgba(5, 150, 105, 0.1);
  --accent-light: rgba(5, 150, 105, 0.05);
  
  --header-bg: rgba(248, 250, 252, 0.8);
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --success-bg: rgba(5, 150, 105, 0.08);
  
  --gradient-1: linear-gradient(135deg, #059669 0%, #4f46e5 100%);
}

/* 2. BASE RESET & GENERAL STYLES */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

/* Hide scrollbar globally for Chrome, Safari and Opera */
::-webkit-scrollbar {
  display: none;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

ul, ol {
  list-style: none;
}

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

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

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

/* Font helpers */
.font-mono {
  font-family: var(--font-mono);
}

/* 3. LAYOUT CONTAINERS & GRID STRUCTURE */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-sm {
  max-width: 850px;
}

.section-padding {
  padding: 7rem 0;
}

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

/* 4. REUSABLE UI ELEMENTS (Buttons, Badges, Titles) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-bounce);
  font-size: 0.95rem;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-secondary);
  box-shadow: 0 6px 20px rgba(99, 102, 240, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--accent-light);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.9rem 2.25rem;
  font-size: 1.05rem;
}

/* Text styles */
.gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 5rem;
}

.section-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  background-color: var(--accent-light);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.15);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-top: 0.5rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 1rem auto 0 auto;
  line-height: 1.6;
  text-align: center;
}

.title-bar {
  width: 60px;
  height: 4px;
  background: var(--gradient-1);
  border-radius: var(--radius-full);
  margin: 1rem auto 0 auto;
}

/* 5. HEADER & NAVIGATION */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 0.75rem 0;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.logo-accent {
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-weight: 700;
}

.logo-text {
  font-weight: 400;
  color: var(--text-secondary);
}

.desktop-nav .nav-list {
  display: flex;
  gap: 2.25rem;
}

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

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: var(--transition-smooth);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  color: var(--text-secondary);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--accent-light);
}

/* Toggle Sun/Moon Icon states */
html[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: block;
}
html[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: none;
}
html[data-theme="light"] .theme-toggle-btn .sun-icon {
  display: none;
}
html[data-theme="light"] .theme-toggle-btn .moon-icon {
  display: block;
}

.header-cta {
  font-size: 0.85rem;
  padding: 0.55rem 1.25rem;
}

/* 5.1 MOBILE DRAWER NAVIGATION */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-smooth);
}

/* Mobile Overlay Drawer */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 15, 29, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 380px;
  height: 100%;
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  padding: 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu-overlay.open .mobile-drawer {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-drawer-header .logo {
  font-size: 1.25rem;
  font-weight: 800;
}

.mobile-drawer-header .close-btn {
  font-size: 2.25rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.mobile-drawer-header .close-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background-color: var(--accent-light);
}

.mobile-drawer-nav {
  margin: 3.5rem 0;
}

.mobile-drawer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.mobile-nav-link {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
}

.mobile-nav-link:hover {
  color: var(--accent-primary);
  padding-left: 0.5rem;
}

.mobile-drawer-footer {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.drawer-status {
  color: var(--accent-primary);
  font-weight: 600;
  margin-top: 0.5rem;
}

/* 6. HERO SECTION */
.hero-section {
  position: relative;
  padding: 10.5rem 0 7.5rem 0;
  overflow: hidden;
}

.hero-bg-accent-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, rgba(10, 15, 29, 0) 70%);
  z-index: 1;
  pointer-events: none;
}

.hero-bg-accent-2 {
  position: absolute;
  bottom: -5%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 240, 0.06) 0%, rgba(10, 15, 29, 0) 70%);
  z-index: 1;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge-container {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.75rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-primary);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--accent-primary);
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 12px var(--accent-primary); }
  100% { transform: scale(0.95); opacity: 0.5; }
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
}

/* 6.1 HERO DASHBOARD PREVIEW */
.hero-dashboard-preview {
  position: relative;
}

.dashboard-mock {
  background-color: #0b0f19;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 20px 50px rgba(0, 0, 0, 0.3);
  color: #f1f5f9;
}

.dashboard-header {
  background-color: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.dashboard-dots {
  display: flex;
  gap: 0.45rem;
}

.dash-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  display: inline-block;
}

.dash-dot.red { background-color: #ef4444; }
.dash-dot.yellow { background-color: #f59e0b; }
.dash-dot.green { background-color: #10b981; }

.dashboard-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #64748b;
  letter-spacing: 0.5px;
}

.dashboard-body {
  padding: 1.5rem;
  font-size: 0.85rem;
  color: #e2e8f0;
}

.terminal-line {
  color: #94a3b8;
  margin-bottom: 0.65rem;
}

.terminal-prompt {
  color: #10b981;
  margin-right: 0.5rem;
}

.success-text {
  color: #10b981;
}

.dashboard-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

.dash-stat-box {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
}

.dash-stat-box .stat-label {
  font-size: 0.65rem;
  color: #64748b;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.dash-stat-box .stat-value {
  font-size: 1rem;
  font-weight: 700;
  color: #f8fafc;
}

.text-emerald { color: #10b981; }
.text-indigo { color: #818cf8; }

.terminal-code-block {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  padding: 1rem;
  border-left: 3px solid #10b981;
  margin: 1.25rem 0 0.5rem 0;
  line-height: 1.5;
  color: #cbd5e1;
  font-family: var(--font-mono);
}

.code-comment { color: #64748b; }
.code-keyword { color: #f43f5e; }
.code-variable { color: #fbbf24; }
.code-string { color: #34d399; }
.code-literal { color: #818cf8; }

.terminal-status-bar {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.75rem;
  margin-top: 1.25rem;
  font-size: 0.7rem;
  color: #64748b;
}

/* 7. STATS/ACHIEVEMENTS SECTION */
.stats-section {
  padding: 2.5rem 0;
  position: relative;
  z-index: 10;
  margin-top: -3rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.5rem 1rem;
}

.stat-card:not(:last-child) {
  border-right: 1px solid var(--border-color);
}

.stat-icon-wrapper {
  background-color: var(--accent-light);
  color: var(--accent-primary);
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
}

.stat-card:hover .stat-icon-wrapper {
  background-color: var(--accent-primary);
  color: #ffffff;
  transform: scale(1.1) rotate(5deg);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 8. ABOUT ME SECTION (TAB SYSTEM) */
.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
  align-items: flex-start;
}

.about-nav-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.about-sidebar-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.about-tab-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.about-tab-btn {
  width: 100%;
  text-align: left;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid transparent;
  transition: var(--transition-smooth);
}

.about-tab-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.about-tab-btn.active {
  background-color: var(--accent-light);
  border-color: rgba(16, 185, 129, 0.2);
  color: var(--accent-primary);
}

.about-content-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-sm);
  min-height: 400px;
  display: flex;
  flex-direction: column;
}

.about-tab-panel {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.about-tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.about-tab-panel h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.about-paragraph {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.highlight-icon {
  background-color: var(--accent-light);
  color: var(--accent-primary);
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
}

.highlight-item span {
  font-weight: 600;
  font-size: 0.95rem;
}

/* 9. SERVICES SECTION (BENTO CARDS) */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card:hover {
  background-color: var(--card-hover-bg);
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md), 0 10px 30px rgba(16, 185, 129, 0.05);
}

.service-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.service-icon {
  background-color: var(--accent-light);
  color: var(--accent-primary);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.service-features li span {
  color: var(--accent-primary);
  font-size: 0.85rem;
}

.service-action-btn {
  background: none;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  width: max-content;
  font-size: 0.85rem;
}

.service-card:hover .service-action-btn {
  background-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

/* 10. PROJECTS SECTION */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.filter-btn {
  padding: 0.55rem 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.filter-btn.active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.project-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.project-card.fade-out {
  display: none;
}

.project-card.fade-in {
  display: flex;
  animation: fadeIn 0.4s ease forwards;
}

.project-card:hover {
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: var(--shadow-md);
}

.project-card-header {
  margin-bottom: 1.25rem;
}

.project-meta-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.project-cat {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-primary);
}

.project-client {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.project-name {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.project-intro-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Collapsible technical details */
.project-expand-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-top: 1px dashed var(--border-color);
  border-bottom: 1px dashed var(--border-color);
  cursor: pointer;
  color: var(--accent-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.project-expand-btn .btn-icon {
  transition: transform 0.3s ease;
}

.project-expand-btn[aria-expanded="true"] .btn-icon {
  transform: rotate(180deg);
}

.project-details-expanded {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-details-expanded .expanded-inner {
  padding: 0.75rem 0 1.25rem 0;
}

.detail-row {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.5;
}

.detail-row strong {
  color: var(--text-primary);
  display: inline-block;
  min-width: 110px;
}

.detail-row span {
  color: var(--text-secondary);
}

.project-tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.tech-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.project-card-footer {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

/* 11. CLIENTS SECTION */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.client-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.client-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(99, 102, 240, 0.2);
}

.client-logo-box {
  width: max-content;
  font-size: 0.9rem;
  font-weight: 700;
  background-color: var(--bg-tertiary);
  color: var(--accent-primary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 1.25rem;
}

.client-org-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.client-work-type {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.client-testimonial {
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  border-left: 2px solid var(--accent-secondary);
  padding-left: 0.75rem;
}

/* 12. EXPERIENCE TIMELINE SECTION */
.timeline-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem 0;
}

.timeline-container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 20px;
  width: 2px;
  height: 100%;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3.5rem;
}

.timeline-dot {
  position: absolute;
  top: 0;
  left: 11px;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background-color: var(--bg-primary);
  border: 3px solid var(--accent-primary);
  z-index: 5;
}

.timeline-item:hover .timeline-dot {
  background-color: var(--accent-primary);
}

.timeline-date {
  font-weight: 700;
  color: var(--accent-primary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.timeline-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
}

.timeline-role {
  font-size: 1.35rem;
  font-weight: 700;
}

.timeline-org {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1rem;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.timeline-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.timeline-bullets li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.25rem;
}

.timeline-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 700;
}

/* 13. BLOG SECTION */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.blog-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(16, 185, 129, 0.2);
}

.blog-card-content {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.blog-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.blog-title {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.blog-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.blog-read-btn {
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  letter-spacing: 0.5px;
  width: max-content;
  display: inline-flex;
}

.blog-read-btn:hover {
  color: var(--accent-secondary);
}

/* 14. CONTACT SECTION */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
}

.contact-info-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.contact-info-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-intro {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

.info-item {
  display: flex;
  gap: 1.25rem;
}

.info-icon {
  color: var(--accent-primary);
  background-color: var(--accent-light);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.15rem;
}

.info-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.social-channels h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

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

.social-icons a {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.social-icons a:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background-color: var(--accent-light);
  transform: translateY(-2px);
}

/* 14.1 CONTACT FORM CARD */
.contact-form-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-sm);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.required-star {
  color: #ef4444;
}

.form-group input, .form-group textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.25rem;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Validation status */
.form-group.invalid input, .form-group.invalid textarea {
  border-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.02);
}

.form-group.invalid .field-error-message {
  display: block;
}

.field-error-message {
  display: none;
  font-size: 0.75rem;
  font-weight: 600;
  color: #ef4444;
  margin-top: 0.25rem;
}

.captcha-group {
  border-top: 1px dashed var(--border-color);
  padding-top: 1.5rem;
  margin-top: 2rem;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 1.5rem;
}

.captcha-group label {
  font-size: 0.95rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-bottom: 0;
}

.captcha-group input {
  max-width: 120px;
}

.submit-btn {
  width: 100%;
  background-color: var(--accent-primary);
  color: #ffffff;
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.submit-btn:hover {
  background-color: var(--accent-secondary);
  box-shadow: 0 6px 20px rgba(99, 102, 240, 0.35);
}

/* Form success display */
.form-success-box {
  background-color: var(--success-bg);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
  animation: scaleUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.success-icon {
  width: 60px;
  height: 60px;
  background-color: var(--accent-primary);
  color: #ffffff;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  margin: 0 auto 1.5rem auto;
}

.form-success-box h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.form-success-box p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 15. SITE FOOTER */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border-color);
}

.footer-brand .logo {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.footer-about-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--accent-primary);
}

.footer-links-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
}

.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-links-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links-col a:hover {
  color: var(--accent-primary);
  padding-left: 0.25rem;
}

.footer-bottom {
  padding-top: 2rem;
}

.footer-bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.adsense-disclosure {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* 16. MODALS AND LEGAL OVERLAYS */
.modal-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-wrapper.open {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 15, 29, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-container {
  position: relative;
  z-index: 10;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  width: 90%;
  max-width: 850px;
  max-height: 85vh;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-wrapper.open .modal-container {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(255, 255, 255, 0.01);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.modal-header-actions {
  display: flex;
  gap: 0.5rem;
}

.modal-action-btn {
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: none;
  color: var(--text-secondary);
}

.modal-action-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.modal-close-btn {
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.modal-close-btn:hover {
  color: var(--accent-primary);
}

.modal-body {
  padding: 2.5rem;
  overflow-y: auto;
  flex-grow: 1;
}

.modal-body h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}

.modal-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Custom styled scroll for article reader */
.article-full h2 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.75;
}

.article-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.article-content h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem 0;
  letter-spacing: -0.5px;
}

.article-content ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.article-content li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
  color: var(--text-secondary);
}

.article-content li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 800;
}

/* 17. BACK TO TOP BUTTON */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--accent-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md), 0 4px 14px rgba(16, 185, 129, 0.4);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition-bounce);
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background-color: var(--accent-secondary);
  box-shadow: 0 6px 20px rgba(99, 102, 240, 0.5);
  transform: translateY(-3px);
}

/* 18. SEPARATE LEGAL PAGE CONTENT LAYOUT */
.legal-page-content {
  padding-top: 10rem;
  min-height: 80vh;
}

.legal-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 4rem;
  box-shadow: var(--shadow-sm);
}

.legal-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin: 0.5rem 0 0.25rem 0;
}

.legal-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.legal-body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.legal-body p {
  margin-bottom: 1.5rem;
}

.legal-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem 0;
  letter-spacing: -0.5px;
}

.legal-body ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.legal-body li {
  position: relative;
  padding-left: 1.5rem;
}

.legal-body li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 800;
}

/* ==========================================================================
   19. RESPONSIVE MEDIA BREAKPOINTS
   ========================================================================== */

/* 19.1 LARGE DESKTOPS / TV DISPLAYS (min-width: 1600px) */
@media (min-width: 1600px) {
  .container {
    max-width: 1500px;
  }
  .hero-title {
    font-size: 4rem;
  }
}

/* 19.2 LAPTOP / SMALL DESKTOPS (1025px - 1440px) */
@media (max-width: 1440px) {
  .hero-title {
    font-size: 3rem;
  }
  .hero-grid {
    gap: 3rem;
  }
}

/* 19.3 TABLET BREAKPOINT (481px - 1024px) */
@media (max-width: 1024px) {
  .section-padding {
    padding: 5rem 0;
  }

  .hero-section {
    padding: 8.5rem 0 5rem 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

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

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-dashboard-preview {
    max-width: 650px;
    margin: 0 auto;
    width: 100%;
  }

  .stats-section {
    margin-top: 0;
    padding: 4rem 0 2rem 0;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 2.5rem;
  }

  .stat-card:nth-child(2) {
    border-right: none;
  }

  .stat-card:nth-child(even) {
    padding-left: 2rem;
  }

  .stat-card:nth-child(3), .stat-card:nth-child(4) {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-tab-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .about-tab-btn {
    width: max-content;
  }

  .about-content-card {
    padding: 2.25rem;
    min-height: auto;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .service-card {
    padding: 2rem;
  }

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

  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-info-card,
  .contact-form-card {
    max-width: 650px;
    width: 100%;
    margin: 0 auto;
  }

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

/* 19.4 SMALL TABLET / PORTRAIT TABLET (up to 768px) */
@media (max-width: 768px) {
  /* Hide Desktop Nav, show Mobile Hamburger */
  .desktop-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .portfolio-filters {
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
  }

  .filter-btn {
    padding: 0.45rem 1rem;
    font-size: 0.8rem;
  }

  .about-tab-list {
    flex-direction: column;
    width: 100%;
  }

  .about-tab-btn {
    width: 100%;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .clients-grid {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-bottom-flex {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .legal-card {
    padding: 2rem;
  }

  .legal-title {
    font-size: 2rem;
  }
}

/* 19.5 MOBILE PHONES (320px - 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .portfolio-filters {
    gap: 0.4rem;
    margin-bottom: 1.5rem;
  }

  .filter-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
  }

  .hero-title {
    font-size: 2.25rem;
    letter-spacing: -1px;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }

  .stat-card {
    padding: 0;
    width: 100%;
  }

  .stat-card:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
  }

  .stat-card:nth-child(3), .stat-card:nth-child(4) {
    border-top: none;
    padding-top: 0;
  }

  .stat-card:nth-child(even) {
    padding-left: 0;
  }

  .about-content-card {
    padding: 1.5rem;
  }

  .about-tab-panel h3 {
    font-size: 1.35rem;
  }

  .service-card {
    padding: 1.5rem;
  }

  .service-title {
    font-size: 1.25rem;
  }

  .project-card {
    padding: 1.5rem;
  }

  .project-name {
    font-size: 1.35rem;
  }

  .detail-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .detail-row strong {
    min-width: auto;
  }

  .timeline-container::after {
    left: 10px;
  }

  .timeline-item {
    padding-left: 35px;
  }

  .timeline-dot {
    left: 1px;
  }

  .timeline-content {
    padding: 1.5rem;
  }

  .timeline-role {
    font-size: 1.15rem;
  }

  .contact-info-card {
    padding: 1.5rem;
  }

  .contact-form-card {
    padding: 1.5rem;
  }

  .captcha-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .captcha-group input {
    max-width: 100%;
    width: 100%;
  }

  .modal-container {
    max-height: 90vh;
  }

  .modal-body {
    padding: 1.5rem;
  }

  .modal-body h2 {
    font-size: 1.5rem;
  }

  .legal-card {
    padding: 1.5rem;
  }

  .legal-title {
    font-size: 1.75rem;
  }
}