/* Ahamed Shafeek — Clean Minimal Design (Notion-inspired)
   Professional, white, minimal | 2025-10-24 */

/* =============================
   Design Tokens
============================= */
:root {
  --bg: #FFFFFF;
  --bg-alt: #FAFAFA;
  --text: #1A1A1A;
  --muted: #6B7280;
  --border: #E5E7EB;
  --hover-bg: #F5F5F5;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);

  --primary: #EA580C;
  --primary-600: #C2410C;
  --secondary: #2563EB;
  --secondary-600: #1E40AF;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Helvetica, Arial, sans-serif;
  
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;

  --container: 1120px;
  --section-y: 80px;
  --gap-sm: 12px;
  --gap: 20px;
  --gap-lg: 32px;
  
  --transition: 0.15s ease;
}

/* =============================
   Accessibility - Skip Link
============================= */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: 12px 20px;
  text-decoration: none;
  font-weight: 600;
  z-index: 10000;
  border-radius: 0 0 var(--radius) 0;
  transition: top 0.3s ease;
}

.skip-to-content:focus {
  top: 0;
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
}

/* Enhanced Focus Styles for Keyboard Navigation */
*:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 0;
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: rgba(234, 88, 12, 0.1); /* Touch feedback color */
}

@media (max-width: 768px) {
  body {
    font-size: 17px; /* Larger base font for mobile */
    line-height: 1.7; /* Improved readability */
  }
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
  -webkit-tap-highlight-color: rgba(234, 88, 12, 0.1);
}

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

/* Better touch targets for text links */
a:not(.btn) {
  position: relative;
  display: inline-block;
  padding: 2px 0;
}

/* Touch feedback for all interactive elements */
@media (hover: none) {
  a:active, button:active {
    opacity: 0.7;
  }
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 1024px) {
  .container { padding: 0 20px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
}

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

@media (max-width: 1024px) {
  .section { padding: 64px 0; }
}

@media (max-width: 768px) {
  .section { padding: 48px 0; }
}

@media (max-width: 480px) {
  .section { padding: 40px 0; }
}

h1, h2, h3, h4 { 
  line-height: 1.3; 
  font-weight: 600;
  margin: 0 0 12px;
}

h1 { font-size: 48px; letter-spacing: -0.02em; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }

@media (max-width: 768px) {
  h1 { 
    font-size: 36px; /* Increased from 32px */
    line-height: 1.2;
    margin-bottom: 16px;
  }
  h2 { 
    font-size: 28px; /* Increased from 24px */
    line-height: 1.3;
    margin-bottom: 12px;
  }
  h3 { 
    font-size: 22px; /* Increased from 20px */
    line-height: 1.4;
  }
  h4 {
    font-size: 18px;
    line-height: 1.4;
  }
}

p { 
  margin: 0 0 16px; /* Increased from 12px */
  opacity: 0.87;
  max-width: 70ch; /* Limit line length for readability */
}

@media (max-width: 768px) {
  p {
    margin: 0 0 18px;
    max-width: 100%;
  }
}

.muted { color: var(--muted); opacity: 1; }

.label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

/* =============================
   Navigation (Premium)
============================= */
.nav-wrapper {
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.2s ease;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px; /* Pill shape */
  padding: 8px 12px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
}

.nav-brand { 
  font-weight: 700; 
  font-size: 18px;
  padding: 0 12px;
  color: var(--primary);
}

.nav-brand a {
  color: var(--primary);
}

.nav-brand a:hover {
  color: var(--primary-600);
}

.nav-links { 
  display: flex; 
  gap: 4px;
  flex-grow: 1;
  justify-content: center;
}

.nav-links a {
  padding: 8px 16px; 
  border-radius: var(--radius);
  color: var(--text); 
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  background: var(--hover-bg);
  color: var(--primary);
}

.nav-links a.active { 
  background: transparent;
  color: var(--text);
  font-weight: 600;
}

.nav-actions {
  display: flex;
  gap: 8px;
}

.burger {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer; 
  font-size: 15px;
  font-weight: 600;
  min-height: 44px; /* Touch target minimum */
  min-width: 44px;
  transition: var(--transition);
  position: relative;
  z-index: 1001;
}

.burger:hover {
  background: var(--hover-bg);
  border-color: var(--text);
}

.burger:active {
  transform: scale(0.95);
}

/* Mobile menu backdrop */
.mobile-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-backdrop.active {
  display: block;
  opacity: 1;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions { display: none; }
  .burger { display: flex; align-items: center; justify-content: center; }
  
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 80px 20px 20px;
    gap: 8px;
    z-index: 1000;
    animation: slideInRight 0.3s ease;
    overflow-y: auto;
  }
  
  .nav-links.mobile-open a {
    padding: 14px 20px;
    font-size: 16px;
    border-radius: var(--radius);
    display: block;
  }
  
  /* Add nav actions to mobile menu */
  .nav-actions.mobile-open {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
    padding: 20px;
    border-top: 1px solid var(--border);
  }
  
  .nav-actions.mobile-open .btn {
    width: 100%;
    justify-content: center;
    padding: 14px 20px;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

/* =============================
   Buttons
============================= */
.btn {
  display: inline-flex; 
  align-items: center; 
  gap: 6px; 
  padding: 10px 20px; 
  border-radius: 999px; /* Pill shape buttons */
  font-weight: 600; 
  font-size: 15px;
  border: 1px solid transparent; 
  cursor: pointer;
  transition: var(--transition);
  min-height: 44px; /* Touch target minimum */
  justify-content: center;
}

@media (max-width: 768px) {
  .btn {
    padding: 14px 24px;
    font-size: 16px;
    width: 100%;
    max-width: 100%;
  }
  
  /* Improve button rows on mobile */
  .cta-row,
  .actions {
    flex-direction: column !important;
    gap: 12px !important;
  }
  
  .cta-row .btn,
  .actions .btn {
    width: 100%;
  }
}

.btn-dark {
  background: var(--text);
  color: var(--bg);
}
.btn-dark:hover {
  background: #333;
}
.btn-dark:active {
  transform: scale(0.97);
}

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

.btn-primary:hover { 
  background: var(--primary-600); 
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary { 
  background: var(--secondary); 
  color: #fff; 
}

.btn-secondary:hover { 
  background: var(--secondary-600); 
}

.btn-secondary:active {
  transform: scale(0.97);
}

.btn-outline { 
  background: var(--bg); 
  color: var(--text); 
  border-color: var(--border); 
}

.btn-outline:hover { 
  background: var(--hover-bg); 
  border-color: var(--text);
}

.btn-outline:active {
  transform: scale(0.97);
}

/* =============================
   Hero
============================= */
.hero { padding: 60px 0 48px; }

.hero-grid {
  display: grid; 
  grid-template-columns: 1.5fr 1fr;
  gap: var(--gap-lg);
  align-items: center;
}

@media (max-width: 1024px) {
  .hero { padding: 48px 0 40px; }
  .hero-grid { 
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .hero { padding: 32px 0 24px; }
  .hero-grid { 
    gap: 24px;
  }
}

.hero .title { margin-bottom: 16px; }
.hero .intro { 
  color: var(--muted); 
  max-width: 560px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .hero .intro {
    max-width: 100%;
    font-size: 17px;
    line-height: 1.7;
  }
}

.hero .cta-row { 
  display: flex; 
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .hero .cta-row {
    flex-direction: column;
    gap: 12px;
  }
}

.portrait-wrap { 
  display: flex; 
  justify-content: center; 
  align-items: center; 
}

.portrait {
  width: 100%;
  max-width: 520px;
  /* Remove forced square crop */
  overflow: visible;
  background: transparent;
}

.portrait img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.hero-stats { 
  display: grid; 
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-sm); 
  margin-top: 32px;
}

/* Make stats span full width under the two-column hero */
.hero-grid > .hero-stats { grid-column: 1 / -1; }

@media (max-width: 1024px) {
  .hero-stats { 
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
}

@media (max-width: 768px) {
  .hero-stats { 
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 24px;
  }
}

@media (max-width: 480px) {
  .hero-stats { 
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

/* Mobile: place portrait above and content below for better first impression */
@media (max-width: 768px) {
  .hero-grid .portrait-wrap { 
    order: -1; 
    margin-bottom: 20px;
  }
  .hero .title { 
    font-size: 36px;
    line-height: 1.2;
  }
  .hero .intro { max-width: 100%; }
}

@media (max-width: 480px) {
  .hero .title { 
    font-size: 32px;
  }
}

.stat {
  padding: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  min-height: 80px; /* Ensure consistent height */
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 768px) {
  .stat {
    padding: 16px 12px;
    min-height: 85px;
  }
}

.stat:hover { 
  border-color: var(--muted);
  transform: translateY(-2px);
}

/* Touch feedback for stat cards */
@media (hover: none) {
  .stat:active {
    transform: scale(0.98);
    border-color: var(--primary);
  }
}

.stat strong { 
  display: block;
  font-size: 24px; 
  font-weight: 600;
  margin-bottom: 4px;
}

@media (max-width: 768px) {
  .stat strong {
    font-size: 26px;
  }
}

.stat small { 
  display: block;
  color: var(--muted); 
  font-size: 14px;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .stat small {
    font-size: 13px;
  }
}

/* =============================
   Cards & Grids
============================= */
.features, .features-grid, .grid-2, .grid-3, .cards-grid {
  display: grid; 
  gap: var(--gap);
}

.features, .features-grid { grid-template-columns: repeat(4, 1fr); }
.cards-grid { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* Tablet breakpoint */
@media (max-width: 1024px) {
  .features, .features-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile landscape breakpoint */
@media (max-width: 900px) {
  .features, .features-grid { grid-template-columns: repeat(2, 1fr); }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile portrait breakpoint */
@media (max-width: 600px) {
  .features, .features-grid, .grid-2, .grid-3, .cards-grid { 
    grid-template-columns: 1fr;
    gap: 16px; /* Reduce gap on small screens */
  }
}

.feature, .feature-card, .card {
  background: var(--bg);
  border: 1px solid var(--border); 
  border-radius: var(--radius);
  padding: 20px; 
  transition: var(--transition);
}

@media (max-width: 768px) {
  .feature, .feature-card, .card {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .feature, .feature-card, .card {
    padding: 18px;
  }
}

.feature:hover, .feature-card:hover, .card:hover {
  border-color: var(--muted);
  box-shadow: var(--shadow-sm);
}

/* Touch devices - always show slight elevation */
@media (hover: none) {
  .feature, .feature-card, .card {
    box-shadow: var(--shadow-sm);
  }
  
  .feature:active, .feature-card:active, .card:active {
    transform: scale(0.98);
  }
}

.feature h4, .feature-card h4, .card h3 { 
  margin-bottom: 8px; 
  font-weight: 600;
}

.feature p, .feature-card p, .card p { 
  color: var(--muted); 
  font-size: 14px;
}

.card .subtitle {
  color: var(--muted);
  margin-bottom: 12px;
  font-size: 14px;
}

.card h3 { font-size: 20px; }

.card .sub { 
  color: var(--muted); 
  margin-bottom: 12px; 
  font-size: 14px;
}

.card .actions { 
  margin-top: 20px; 
  display: flex; 
  gap: var(--gap-sm); 
}

/* =============================
   Split Layout
============================= */
.split, .content-split {
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: var(--gap-lg);
  align-items: start;
}

@media (max-width: 1024px) {
  .split, .content-split { 
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .split, .content-split { 
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* =============================
   CTA Block
============================= */
.cta, .cta-section {
  background: var(--bg-alt);
  border: 1px solid var(--border); 
  border-radius: var(--radius-lg); 
  padding: 32px; 
  display: grid; 
  grid-template-columns: 1.5fr 1fr; 
  gap: var(--gap-lg); 
  align-items: center;
}

@media (max-width: 1024px) {
  .cta, .cta-section {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 28px;
  }
}

@media (max-width: 768px) {
  .cta, .cta-section { 
    grid-template-columns: 1fr;
    padding: 24px 20px;
  }
}

/* Override card look when CTA sits on gradient background */
.bg-gradient .cta-section {
  background: transparent;
  border: none;
  box-shadow: none;
  grid-template-columns: 1fr;
}

.bg-gradient .cta-section .actions { justify-content: center; }

.cta .actions, .cta-section .actions { 
  display: flex; 
  gap: var(--gap-sm); 
  justify-content: flex-end;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .cta .actions, .cta-section .actions { 
    justify-content: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

/* =============================
   Timeline
============================= */
.timeline {
  position: relative;
  padding-left: 40px;
  margin-top: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--border);
}

.timeline-date {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-content h4 {
  margin-bottom: 4px;
}

.timeline-content p {
  color: var(--muted);
  font-size: 14px;
}

/* =============================
   Footer
============================= */
.site-footer, .footer { 
  padding: 32px 0; 
  color: var(--muted); 
  border-top: 1px solid var(--border);
  margin-top: 60px;
  font-size: 14px;
}

.site-footer .row { 
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  flex-wrap: wrap; 
  gap: var(--gap-sm);
}

/* Footer container layout when using .footer */
.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--gap-sm);
}

.footer-text { color: var(--muted); }

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.form-group input.error,
.form-group textarea.error,
.form-group select.error {
  border-color: #DC2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.field-error {
  color: #DC2626;
  font-size: 14px;
  margin-top: 4px;
  display: block;
}

.form-group textarea {
  resize: vertical;
  line-height: 1.6;
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-note {
  font-size: 14px;
  color: var(--muted);
  margin-top: 1rem;
  text-align: center;
}

/* =============================
   Back to Top
============================= */
#toTop, #backToTop { 
  position: fixed; 
  right: 20px; 
  bottom: 20px; 
  opacity: 0; 
  pointer-events: none; 
  transition: var(--transition);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  box-shadow: var(--shadow-sm);
}

#toTop.show, #backToTop.show { 
  opacity: 1; 
  pointer-events: auto; 
}

/* =============================
   Utilities
============================= */
.text-center { text-align: center; }
.mt { margin-top: var(--gap); }
.mt-lg { margin-top: var(--gap-lg); }
.mb { margin-bottom: var(--gap); }
.mb-2 { margin-bottom: var(--gap-lg); }
.mt-1 { margin-top: var(--gap-sm); }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s, transform 0.4s;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* =============================
   Premium Enhancements
============================= */

/* Feature Icons */
.feature-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

/* Background Variants */
.bg-alt {
  background: var(--bg-alt);
}

.bg-gradient {
  background: linear-gradient(135deg, #EA580C 0%, #C2410C 100%);
  color: white;
}

/* Tech Stack Section */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap-lg);
  margin-top: var(--gap-lg);
}

.tech-category h4 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text);
}

.tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
}

.tech-badge:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* Premium Cards */
.card-premium {
  background: var(--bg);
  border: 2px solid var(--border);
  transition: all 0.3s ease;
}

.card-premium:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(234, 88, 12, 0.15);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.venture-badge {
  display: inline-block;
  padding: 4px 10px;
  background: var(--primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}

.feature-list li {
  padding: 6px 0;
  color: var(--muted);
  font-size: 15px;
}

/* Achievement Grid */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-lg);
  margin-top: var(--gap-lg);
}

.achievement-card {
  padding: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.3s ease;
}

.achievement-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.achievement-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.achievement-card h4 {
  font-size: 20px;
  margin-bottom: 8px;
  color: var(--text);
}

.achievement-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

/* Premium CTA Section */
.cta-premium {
  text-align: center;
  padding: 48px 32px;
}

.cta-content {
  max-width: 720px;
  margin: 0 auto 32px;
}

.label-light {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: white;
}

.cta-premium h2 {
  color: white;
  margin-bottom: 16px;
  font-size: 36px;
}

.cta-premium p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 17px;
  line-height: 1.7;
}

.cta-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.cta-stat {
  text-align: center;
}

.cta-stat strong {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: white;
  margin-bottom: 4px;
}

.cta-stat small {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* Light Button Variants */
.btn-primary-light {
  background: white;
  color: var(--primary);
  border: 2px solid white;
}

.btn-primary-light:hover {
  background: transparent;
  color: white;
  border-color: white;
}

.btn-secondary-light {
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary-light:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}

/* Contact Grid */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--gap);
  margin-top: var(--gap-lg);
}

.contact-card {
  padding: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  display: block;
}

.contact-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  text-decoration: none;
}

.contact-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.contact-card h4 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}

.contact-card p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 12px;
  word-break: break-word;
}

.contact-link {
  display: inline-block;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.contact-card:hover .contact-link {
  transform: translateX(4px);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  /* tighten spacing on mobile to reduce awkward empty areas */
  .section { padding: 40px 0; }
  .card, .feature-card, .feature, .achievement-card, .contact-card { padding: 18px; }
  .tech-grid {
    grid-template-columns: 1fr;
    gap: var(--gap);
  }
  
  .achievement-grid {
    grid-template-columns: 1fr;
    gap: var(--gap);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--gap);
  }
  
  .cta-premium {
    padding: 32px 20px;
  }
  
  .cta-premium h2 {
    font-size: 28px;
  }
  
  .cta-stats {
    gap: 32px;
  }
}

/* Timeline Premium */
.timeline-premium {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  background-image: linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px), linear-gradient(180deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px;
  background-position: center;
  padding: 8px 0;
}

.tl-row {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
}

.tl-card {
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  border-radius: 14px;
  padding: 16px 18px;
}

.tl-card h3 { font-size: 18px; margin-bottom: 6px; }
.tl-card p { font-size: 14px; color: var(--muted); }
.tl-card .tl-meta { font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }

.tl-left { grid-column: 1 / 2; }
.tl-right { grid-column: 3 / 4; }

.tl-connector {
  grid-column: 2 / 3;
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 999px;
  position: relative;
}
.tl-connector::before {
  content: '';
  position: absolute;
  left: 50%;
  top: -7px;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--primary);
}

.tl-accent {
  background: linear-gradient(90deg, rgba(234,88,12,0.15), rgba(37,99,235,0.15));
  border-color: rgba(234,88,12,0.25);
}

.tl-vision {
  border: 2px solid var(--primary);
}

@media (max-width: 900px) {
  .tl-row { grid-template-columns: 1fr; }
  .tl-left, .tl-right { grid-column: auto; }
  .tl-connector { display: none; }
}

/* =============================
   About Page — Distinct Layout
============================= */
.about-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--gap-lg);
  align-items: start;
}

.about-sidebar { position: sticky; top: 88px; }

.profile-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.profile-card .avatar img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.profile-name { margin-top: 12px; font-size: 20px; }

.pill-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 8px;
}

.pill {
  padding: 6px 12px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
}

.side-ctas { display: flex; gap: 8px; margin: 8px 0 12px; }

.side-nav { display: grid; gap: 6px; }
.side-link {
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--muted);
  border: 1px solid transparent;
}
.side-link:hover { color: var(--text); background: var(--hover-bg); border-color: var(--border); }

.about-content { display: grid; gap: var(--gap-lg); }

.page-header .intro { color: var(--muted); max-width: 720px; margin-top: 6px; }
.fact-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.fact { padding: 6px 10px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px; font-size: 13px; }

.about-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.quote-premium {
  margin-top: 12px;
  padding: 14px 16px;
  border-left: 4px solid var(--primary);
  background: var(--bg-alt);
  color: var(--text);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--gap);
  margin-top: 12px;
}
.tile {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
}
.tile:hover { border-color: var(--muted); box-shadow: var(--shadow-sm); }

.skill-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--gap); }
.badge-cloud { display: flex; flex-wrap: wrap; gap: 8px; }

@media (max-width: 980px) {
  .about-layout { grid-template-columns: 1fr; }
  .about-sidebar { position: static; }
}

/* =============================
   Ventures Page — Perfect UI/UX
============================= */
.venture-stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
  margin-top: 32px;
  padding: 20px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.v-stat {
  text-align: center;
  padding: 12px;
}

.v-stat strong {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.v-stat span {
  display: block;
  font-size: 14px;
  color: var(--muted);
}

.ventures-showcase {
  display: grid;
  gap: 48px;
}

.venture-hero-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.venture-hero-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.venture-hero-card.z3 { border-left: 4px solid var(--primary); }
.venture-hero-card.z2 { border-left: 4px solid var(--secondary); }
.venture-hero-card.z1 { border-left: 4px solid var(--muted); }

.venture-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 16px;
}

.venture-hero-card h2 {
  font-size: 36px;
  margin-bottom: 8px;
}

.venture-tagline {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.venture-desc {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.venture-highlights {
  display: grid;
  gap: 16px;
  margin-bottom: 32px;
}

.highlight-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.hi-icon {
  font-size: 28px;
  flex-shrink: 0;
}

.highlight-item strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

.highlight-item p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.product-suite {
  margin-bottom: 32px;
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.product-suite h4 {
  margin-bottom: 16px;
  font-size: 16px;
}

.suite-grid {
  display: grid;
  gap: 16px;
}

.suite-cat {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  min-width: 80px;
}

.product-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.p-pill {
  padding: 6px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text);
  transition: var(--transition);
}

.p-pill:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  transform: translateY(-1px);
}

.impact-metrics {
  margin-bottom: 32px;
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.impact-metrics h4 {
  margin-bottom: 16px;
  font-size: 16px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.metric-box {
  text-align: center;
  padding: 16px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.metric-box strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.metric-box span {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.venture-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.vision-card {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.vision-content h3 {
  font-size: 28px;
  margin-bottom: 16px;
}

.vision-content p {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.vision-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.vf-item {
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
}

@media (max-width: 768px) {
  .venture-stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 16px;
  }
  
  .v-stat strong { font-size: 24px; }
  
  .venture-hero-card {
    padding: 24px;
  }
  
  .venture-hero-card h2 { font-size: 28px; }
  
  .venture-tagline { font-size: 16px; }
  
  .metric-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .suite-cat {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .vision-features {
    grid-template-columns: 1fr;
  }
  
  .vision-card {
    padding: 24px;
  }
}

/* =============================
   Mobile Performance & Image Optimization
============================= */

/* Optimize image loading */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Lazy loading hint for browsers */
img[loading="lazy"] {
  background: var(--bg-alt);
  min-height: 200px;
}

/* Responsive images - prevent layout shift */
.portrait img,
.card img,
.feature img {
  aspect-ratio: attr(width) / attr(height);
  object-fit: cover;
}

/* Better image rendering on mobile */
@media (max-width: 768px) {
  img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* =============================
   Mobile-Specific Improvements
============================= */

/* Prevent text selection on buttons and interactive elements */
.btn, .burger, .nav-links a {
  -webkit-user-select: none;
  user-select: none;
}

/* Improve scrolling on mobile */
@media (max-width: 768px) {
  html {
    -webkit-overflow-scrolling: touch;
  }
  
  body {
    overflow-x: hidden;
  }
}

/* Safe area insets for notched devices */
@supports (padding: env(safe-area-inset-bottom)) {
  .nav-wrapper {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  
  .section {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
}

/* Landscape orientation improvements */
@media (max-width: 900px) and (orientation: landscape) {
  .section {
    padding: 40px 0;
  }
  
  .hero {
    padding: 32px 0;
  }
  
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Small mobile devices (iPhone SE, etc.) */
@media (max-width: 375px) {
  h1 {
    font-size: 28px;
  }
  
  h2 {
    font-size: 24px;
  }
  
  .btn {
    padding: 12px 20px;
    font-size: 15px;
  }
  
  .stat strong {
    font-size: 22px;
  }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Dark mode support (optional for future) */
@media (prefers-color-scheme: dark) {
  /* Add dark mode styles here if needed */
}

/* =============================
   Blog Page Styles
============================= */

/* Blog Filters */
.blog-filters {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-tag {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  -webkit-user-select: none;
  user-select: none;
}

.filter-tag:hover {
  background: var(--hover-bg);
  border-color: var(--muted);
}

.filter-tag.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.filter-tag:active {
  transform: scale(0.95);
}

@media (max-width: 768px) {
  .blog-filters {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }
  
  .filter-tag {
    white-space: nowrap;
  }
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

@media (max-width: 768px) {
  .blog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Blog Card */
.blog-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

@media (hover: none) {
  .blog-card {
    box-shadow: var(--shadow-sm);
  }
  
  .blog-card:active {
    transform: scale(0.98);
  }
}

.blog-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.blog-category {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-category.saas {
  background: rgba(234, 88, 12, 0.1);
  color: var(--primary);
}

.blog-category.edtech {
  background: rgba(37, 99, 235, 0.1);
  color: var(--secondary);
}

.blog-category.startup {
  background: rgba(236, 72, 153, 0.1);
  color: #EC4899;
}

.blog-category.technical {
  background: rgba(99, 102, 241, 0.1);
  color: #6366F1;
}

.blog-category.personal {
  background: rgba(245, 158, 11, 0.1);
  color: #F59E0B;
}

.blog-date {
  font-size: 13px;
  color: var(--muted);
}

.blog-card h3 {
  font-size: 20px;
  line-height: 1.4;
  margin: 0;
}

.blog-card h3 a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.blog-card h3 a:hover {
  color: var(--primary);
}

.blog-excerpt {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  flex-grow: 1;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.read-time {
  font-size: 13px;
  color: var(--muted);
}

.read-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.read-more:hover {
  color: var(--primary-600);
  transform: translateX(2px);
}

@media (max-width: 768px) {
  .blog-card {
    padding: 20px;
  }
  
  .blog-card h3 {
    font-size: 18px;
  }
  
  .blog-excerpt {
    font-size: 14px;
  }
}

/* =============================
   Enhanced Footer Styles
============================= */
.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 8px;
  text-decoration: none;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary);
  transform: translateX(2px);
}

.footer-col p {
  font-size: 14px;
  margin-bottom: 8px;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-bottom p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.social-links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: var(--transition);
}

.social-links a:hover {
  color: var(--primary);
}