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

/* =============================
   Design Tokens - Minimal Style
============================= */
:root {
  /* Colors - Clean & Minimal */
  --bg: #FFFFFF;             /* Pure white */
  --bg-alt: #FAFAFA;         /* Subtle gray for sections */
  --text: #1A1A1A;           /* Near black */
  --muted: #6B7280;          /* Medium gray */
  --border: #E5E7EB;         /* Light border */
  --hover-bg: #F5F5F5;       /* Subtle hover */
  
  --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;        /* Orange */
  --primary-600: #C2410C;    
  --primary-100: #FEF3F2;    
  --secondary: #2563EB;      /* Blue */
  --secondary-600: #1E40AF;  
  --secondary-100: #EFF6FF;

  /* Typography - Notion-like */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Helvetica, Arial, sans-serif;
  --h1-size: clamp(2rem, 1.5rem + 2vw, 3rem);
  --h2-size: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --h3-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.4rem);
  --body-size: 16px;
  --small-size: 14px;
  --caps-size: 12px;
  --leading: 1.6;
  --leading-tight: 1.3;

  /* Spacing - Consistent */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-pill: 24px;

  --container: 1120px;
  --section-y: clamp(48px, 8vw, 96px);
  --gap-sm: 12px;
  --gap: 20px;
  --gap-lg: 32px;
  
  --transition: 0.15s ease;
}

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

html {
  height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100%;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  font-size: var(--body-size);
  line-height: var(--leading);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

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

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

h1, h2, h3, h4, h5, h6 { 
  line-height: var(--leading-tight); 
  font-weight: 600;
  margin: 0;
}

h1 { 
  font-size: var(--h1-size); 
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 { 
  font-size: var(--h2-size); 
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 { 
  font-size: var(--h3-size); 
}

p { 
  margin: 0;
  color: var(--text);
  opacity: 0.87;
}

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

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

/* =============================
   Clean Navigation
============================= */
.site-nav-wrap {
  position: sticky; 
  top: 0; 
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
}

.nav-brand { 
  font-weight: 600; 
  font-size: 15px;
}

.nav-links { 
  display: flex; 
  gap: 4px;
  align-items: center;
}

.nav-links a {
  padding: 8px 12px; 
  border-radius: var(--radius-sm);
  color: var(--muted); 
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

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

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

.burger {
  display: none;
  align-items: center; 
  gap: 6px; 
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  cursor: pointer; 
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

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

.burger .lines { 
  width: 16px; 
  height: 10px; 
  position: relative;
}

.burger .lines::before, 
.burger .lines::after, 
.burger .lines span {
  content: ""; 
  position: absolute; 
  left: 0; 
  width: 100%; 
  height: 2px; 
  background: var(--text);
  border-radius: 1px;
  transition: var(--transition);
}

.burger .lines::before { top: 0; }
.burger .lines span { top: 4px; }
.burger .lines::after { bottom: 0; }

@media (max-width: 768px) {
  .nav-links { 
    display: none; 
  }
  
  .burger {
    display: flex;
  }
  
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    gap: 4px;
  }
  
  .nav-links.mobile-open a {
    width: 100%;
    padding: 10px 12px;
  }
}

/* =============================
   Buttons - Minimal & Clean
============================= */
.btn {
  display: inline-flex; 
  align-items: center; 
  justify-content: center;
  gap: 6px; 
  padding: 10px 16px; 
  border-radius: var(--radius);
  font-weight: 500; 
  font-size: 14px;
  border: 1px solid transparent; 
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

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

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

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

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

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

/* =============================
   Hero - Clean & Minimal
============================= */
.hero { 
  padding: 60px 0 48px;
}

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

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--gap-lg);
    align-items: center;
  }
}

.hero .label {
  color: var(--muted);
  margin-bottom: 12px;
}

.hero .title { 
  margin: 0 0 16px;
  font-weight: 600;
}

.hero .intro { 
  margin: 0 0 24px; 
  color: var(--muted); 
  font-size: 16px;
  line-height: 1.6;
  max-width: 560px;
}

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

.portrait-wrap {
  display: grid; 
  place-items: center;
}

.portrait {
  width: 100%;
  max-width: 320px; 
  aspect-ratio: 1 / 1; 
  border-radius: var(--radius-lg);
  background: var(--bg-alt);
  border: 1px solid var(--border); 
  overflow: hidden;
}

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

/* Stats */
.hero-stats { 
  display: grid; 
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-sm); 
  margin-top: 32px;
}

@media (min-width: 480px) {
  .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  padding: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.stat:hover {
  border-color: var(--muted);
}

.stat strong { 
  display: block;
  font-size: 24px; 
  color: var(--text);
  font-weight: 600;
  margin-bottom: 4px;
}

.stat small { 
  display: block;
  color: var(--muted); 
  font-size: var(--small-size);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* =============================
   Innovative Feature Cards
============================= */
.features {
  margin-top: var(--gap-md);
  display: grid; 
  grid-template-columns: 1fr;
  gap: var(--gap-sm);
}

@media (min-width: 560px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .features {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature {
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
  border: 1px solid var(--border); 
  border-radius: var(--radius-16);
  padding: 24px 20px; 
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

/* Diagonal corner accent */
.feature::before {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0;
  transition: var(--transition);
}

/* Top gradient line */
.feature::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.feature:hover {
  box-shadow: 
    0 8px 30px rgba(234, 88, 12, 0.12),
    0 4px 12px rgba(37, 99, 235, 0.08);
  transform: translateY(-6px);
  border-color: transparent;
}

.feature:hover::before {
  opacity: 0.15;
}

.feature:hover::after {
  transform: scaleX(1);
}

/* Staggered hover animation */
.feature:nth-child(1) { animation-delay: 0s; }
.feature:nth-child(2) { animation-delay: 0.1s; }
.feature:nth-child(3) { animation-delay: 0.2s; }
.feature:nth-child(4) { animation-delay: 0.3s; }

.feature h4 { 
  margin: 0 0 10px; 
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.15rem); 
  font-weight: 700;
  color: var(--text);
  position: relative;
  z-index: 1;
}

.feature h4::before {
  content: '→';
  position: absolute;
  left: -24px;
  color: var(--primary);
  opacity: 0;
  transition: var(--transition);
}

.feature:hover h4::before {
  opacity: 1;
  left: -20px;
}

.feature p { 
  margin: 0; 
  color: var(--muted); 
  font-size: var(--small-size);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}
/* Trusted logos section removed */

/* =============================
   About Preview - Split Design
============================= */
.split {
  display: grid; 
  grid-template-columns: 1fr; 
  gap: var(--gap-lg);
  align-items: start;
  position: relative;
  padding: clamp(24px, 4vw, 40px);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(245, 243, 240, 0.5));
  border-radius: var(--radius-16);
  border: 1px solid var(--border);
  overflow: hidden;
}

.split::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 40%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(234, 88, 12, 0.06) 0%,
    transparent 70%
  );
  animation: rotateGradient 15s linear infinite;
}

@keyframes rotateGradient {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (min-width: 768px) {
  .split {
    grid-template-columns: 1.1fr 1fr;
  }
}

.split > * {
  position: relative;
  z-index: 1;
}

.kicker { 
  color: var(--muted); 
  margin-bottom: 12px; 
  display: inline-block;
  padding: 6px 12px;
  background: rgba(234, 88, 12, 0.1);
  border-radius: var(--radius-pill);
  font-weight: 700;
}

/* =============================
   Innovative Venture Cards
============================= */
.grid-2 { 
  display: grid; 
  grid-template-columns: 1fr; 
  gap: var(--gap-md); 
  margin-top: var(--gap-md);
}

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

.card {
  background: #fff;
  border: 2px solid var(--border); 
  border-radius: var(--radius-16);
  padding: clamp(28px, 5vw, 40px); 
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

/* Animated gradient overlay */
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
  opacity: 0;
  transition: var(--transition);
  z-index: 0;
}

/* Floating badge */
.card::after {
  content: 'NEW';
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 6px 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  border-radius: var(--radius-pill);
  opacity: 0;
  transform: translateY(-10px) scale(0.8);
  transition: var(--transition);
  z-index: 2;
}

.card:hover {
  box-shadow: 
    0 16px 50px rgba(234, 88, 12, 0.15),
    0 8px 24px rgba(37, 99, 235, 0.1);
  transform: translateY(-8px) scale(1.02);
  border-color: var(--primary);
}

.card:hover::before {
  opacity: 0.12;
}

.card:hover::after {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.card > * {
  position: relative;
  z-index: 1;
}

.card h3 { 
  margin: 0 0 12px; 
  font-size: clamp(1.35rem, 1.25rem + 0.5vw, 1.65rem); 
  font-weight: 800;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card .sub { 
  color: var(--muted); 
  margin-bottom: 16px; 
  font-weight: 700;
  font-size: var(--small-size);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
  display: inline-block;
  padding-left: 16px;
}

.card .sub::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
  50% { opacity: 0.6; transform: translateY(-50%) scale(1.3); }
}

.card p {
  line-height: 1.8;
  margin-bottom: 22px;
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
}

.card .actions { 
  margin-top: 24px; 
  display: flex; 
  gap: 12px; 
  flex-wrap: wrap; 
}

/* =============================
   Innovative CTA Block
============================= */
.cta {
  background: linear-gradient(135deg, 
    rgba(234, 88, 12, 0.03) 0%, 
    rgba(37, 99, 235, 0.03) 100%
  );
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: var(--radius-16); 
  padding: clamp(32px, 6vw, 48px); 
  box-shadow: var(--shadow);
  display: grid; 
  grid-template-columns: 1fr; 
  gap: var(--gap-lg); 
  align-items: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

/* Animated border gradient */
.cta::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(
    135deg,
    var(--primary),
    var(--secondary),
    var(--primary)
  );
  background-size: 200% 200%;
  border-radius: var(--radius-16);
  z-index: -1;
  animation: gradientShift 3s ease infinite;
  opacity: 0;
  transition: var(--transition);
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.9) 0%,
    rgba(245, 243, 240, 0.8) 100%
  );
  z-index: -1;
}

.cta:hover {
  box-shadow: 
    0 20px 60px rgba(234, 88, 12, 0.15),
    0 8px 24px rgba(37, 99, 235, 0.1);
  transform: translateY(-2px);
}

.cta:hover::before {
  opacity: 1;
}

@media (min-width: 860px) {
  .cta {
    grid-template-columns: 1.5fr 1fr;
  }
}

.cta .label {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.cta h2 {
  margin-bottom: 12px;
  position: relative;
}

.cta h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.cta p { 
  margin: 12px 0 0; 
  color: var(--muted); 
  line-height: 1.8;
}

.cta .actions { 
  display: flex; 
  gap: 12px; 
  flex-wrap: wrap; 
}

@media (min-width: 860px) {
  .cta .actions {
    justify-content: flex-end;
    align-items: center;
  }
}

@media (max-width: 600px) {
  .cta .actions {
    flex-direction: column;
  }
}

/* =============================
   Footer
============================= */
.site-footer { 
  padding: 32px 0 40px; 
  color: var(--muted); 
  border-top: 1px solid var(--border);
  margin-top: var(--section-y);
}
.site-footer .row { 
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  gap: var(--gap-sm); 
  flex-wrap: wrap; 
}
.site-footer a {
  color: var(--muted);
  text-decoration: none;
  transition: var(--transition-fast);
}
.site-footer a:hover {
  color: var(--primary);
}

/* =============================
   Back to top
============================= */
#toTop { 
  position: fixed; 
  right: 20px; 
  bottom: 20px; 
  z-index: 999; 
  opacity: 0; 
  pointer-events: none; 
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}
#toTop.show { 
  opacity: 1; 
  pointer-events: auto; 
}
#toTop:hover {
  transform: translateY(-3px);
}

/* =============================
   Utility Classes
============================= */
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.mt-1 { margin-top: var(--gap-sm); }
.mt-2 { margin-top: var(--gap-md); }
.mt-3 { margin-top: var(--gap-lg); }
.mb-1 { margin-bottom: var(--gap-sm); }
.mb-2 { margin-bottom: var(--gap-md); }
.mb-3 { margin-bottom: var(--gap-lg); }

/* =============================
   Scroll Reveal Animation
============================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* =============================
   Loading States
============================= */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--border) 25%,
    #f0f0f0 50%,
    var(--border) 75%
  );
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-8);
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================
   Innovative Contact Section
============================= */
#contact .features {
  margin-top: var(--gap-md);
}

#contact .feature {
  background: linear-gradient(135deg, #fff 0%, rgba(245, 243, 240, 0.5) 100%);
  position: relative;
  padding: 28px 22px;
}

#contact .feature::before {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
  opacity: 0.4;
}

#contact .feature:nth-child(1)::before {
  background: linear-gradient(135deg, var(--primary-100), transparent);
}

#contact .feature:nth-child(2)::before {
  background: linear-gradient(135deg, var(--secondary-100), transparent);
}

#contact .feature:nth-child(3)::before {
  background: linear-gradient(135deg, var(--primary-100), var(--secondary-100));
}

#contact .feature:nth-child(4)::before {
  background: linear-gradient(135deg, var(--secondary-100), var(--primary-100));
}

#contact .feature h4 {
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

#contact .feature h4::before {
  content: '●';
  font-size: 0.6em;
  color: var(--primary);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

#contact .feature:nth-child(2) h4::before {
  color: var(--secondary);
  animation-delay: 0.5s;
}

#contact .feature:nth-child(3) h4::before {
  color: var(--primary);
  animation-delay: 1s;
}

#contact .feature:nth-child(4) h4::before {
  color: var(--secondary);
  animation-delay: 1.5s;
}

#contact .feature p {
  font-weight: 500;
  color: var(--text);
  opacity: 0.85;
}

#contact .feature:hover h4::before {
  animation: none;
  transform: scale(1.5);
}

/* =============================
   Responsive Adjustments
============================= */
@media (max-width: 600px) {
  :root {
    --section-y: clamp(32px, 6vw, 48px);
  }
  
  .section {
    scroll-margin-top: 80px;
  }
}

/* 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;
  }
}