/* =============================================
   LI-KRA Services Bt. — Design System
   ============================================= */

/* ---------- Google Font ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS Variables ---------- */
:root {
  /* Palette */
  --bg-primary:   #0a0e17;
  --bg-surface:   rgba(255, 255, 255, 0.04);
  --bg-surface-hover: rgba(255, 255, 255, 0.08);
  --bg-glass:     rgba(15, 23, 42, 0.60);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:   #64748b;
  --accent-start: #3b82f6;
  --accent-end:   #06b6d4;
  --accent-glow:  rgba(59, 130, 246, 0.25);

  /* Typography */
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  2.5rem;
  --fs-4xl:  3.25rem;
  --fs-hero: 4rem;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Radius */
  --radius-sm:  0.5rem;
  --radius-md:  0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full: 50%;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.5s;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

img { max-width: 100%; display: block; }
ul  { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-start);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.section-desc {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

/* ---------- Scroll-reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: background 0.4s, box-shadow 0.4s, padding 0.4s;
}
.navbar.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border-glass);
  padding: var(--space-sm) 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: var(--fs-xl);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.nav-logo span {
  font-weight: 400;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}
.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: color 0.3s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
  border-radius: 1px;
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.55rem 1.4rem !important;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff !important;
  font-weight: 600 !important;
  transition: box-shadow 0.3s, transform 0.3s !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  box-shadow: 0 4px 24px var(--accent-glow);
  transform: translateY(-1px);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  padding: 4px 0;
}
.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-5xl) 0 var(--space-4xl);
  overflow: hidden;
}

/* Animated gradient orbs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  pointer-events: none;
}
.hero::before {
  width: 600px;
  height: 600px;
  background: var(--accent-start);
  top: -15%;
  right: -10%;
  animation: float-a 8s ease-in-out infinite alternate;
}
.hero::after {
  width: 500px;
  height: 500px;
  background: var(--accent-end);
  bottom: -10%;
  left: -5%;
  animation: float-b 10s ease-in-out infinite alternate;
}

@keyframes float-a {
  to { transform: translate(-40px, 60px) scale(1.08); }
}
@keyframes float-b {
  to { transform: translate(50px, -40px) scale(1.12); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(8px);
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  50%      { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero-sub {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 560px;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  color: #fff;
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: box-shadow 0.3s, transform 0.3s;
}
.btn-primary:hover {
  box-shadow: 0 6px 32px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 600;
  font-size: var(--fs-sm);
  backdrop-filter: blur(6px);
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}
.btn-outline:hover {
  background: var(--bg-surface-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

/* Stat strip */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-glass);
}
.hero-stat-value {
  font-size: var(--fs-2xl);
  font-weight: 800;
}
.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 2px;
}

/* =============================================
   SERVICES SECTION
   ============================================= */
.services {
  padding: var(--space-5xl) 0;
  position: relative;
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.services-header .section-desc {
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  position: relative;
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out), border-color 0.4s;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(6,182,212,0.04));
  opacity: 0;
  transition: opacity 0.4s;
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px var(--accent-glow);
  border-color: rgba(59,130,246,0.2);
}
.service-card:hover::before { opacity: 1; }

.service-icon {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}
.service-icon svg {
  width: 28px;
  height: 28px;
  color: #fff;
}

.service-card h3 {
  position: relative;
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.service-card p {
  position: relative;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.8;
}

.service-features {
  position: relative;
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.service-features li {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}
.service-features li svg {
  width: 16px;
  height: 16px;
  color: #22c55e;
  flex-shrink: 0;
}

/* =============================================
   FOUNDER SECTION
   ============================================= */
.founder {
  padding: var(--space-5xl) 0;
  position: relative;
}

.founder-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.founder-photo-wrapper {
  position: relative;
}
.founder-photo {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.founder-photo::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(6,182,212,0.05));
}
.founder-initials {
  position: relative;
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
}

.founder-info h3 {
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: 0.25rem;
}
.founder-role {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--accent-start);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.founder-bio {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-xl);
}

.founder-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.founder-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}
.founder-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.founder-detail-icon svg {
  width: 18px;
  height: 18px;
  color: var(--accent-end);
}
.founder-detail-text strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 2px;
}
.founder-detail-text span {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* Co-founder card */
.cofounder-card {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.cofounder-avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-end), var(--accent-start));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-sm);
  color: #fff;
  flex-shrink: 0;
}
.cofounder-info h4 {
  font-size: var(--fs-base);
  font-weight: 700;
  margin-bottom: 2px;
}
.cofounder-info span {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* Values strip */
.values-strip {
  margin-top: var(--space-3xl);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.value-item {
  text-align: center;
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  transition: border-color 0.3s, transform 0.3s;
}
.value-item:hover {
  border-color: rgba(59,130,246,0.15);
  transform: translateY(-4px);
}
.value-item svg {
  width: 32px;
  height: 32px;
  margin: 0 auto var(--space-md);
  color: var(--accent-end);
}
.value-item h4 {
  font-size: var(--fs-base);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}
.value-item p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

/* =============================================
   CONTACT / FOOTER
   ============================================= */
.contact {
  padding: var(--space-5xl) 0;
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info h2 {
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}
.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-detail-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-start);
}
.contact-detail-text strong {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-detail-text span,
.contact-detail-text a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  transition: color 0.3s;
}
.contact-detail-text a:hover {
  color: var(--accent-start);
}

/* Contact Form */
.contact-form-wrapper {
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(20px);
}
.contact-form-wrapper h3 {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}
.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-start);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.form-error {
  font-size: var(--fs-xs);
  color: #ef4444;
  margin-top: 4px;
  display: none;
}
.form-error.show { display: block; }

.form-submit {
  width: 100%;
  margin-top: var(--space-sm);
}

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-2xl);
}
.form-success.show { display: block; }
.form-success svg {
  width: 48px;
  height: 48px;
  color: #22c55e;
  margin: 0 auto var(--space-md);
}
.form-success h4 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}
.form-success p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

/* Footer bar */
.footer {
  border-top: 1px solid var(--border-glass);
  padding: var(--space-xl) 0;
}
.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.footer-copy {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: var(--space-lg);
}
.footer-links a {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  transition: color 0.3s;
}
.footer-links a:hover { color: var(--text-primary); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .founder-grid  { grid-template-columns: 280px 1fr; gap: var(--space-2xl); }
  .hero h1 { font-size: var(--fs-4xl); }
}

@media (max-width: 768px) {
  :root {
    --fs-hero: 2.75rem;
    --fs-3xl:  2rem;
    --fs-2xl:  1.5rem;
  }

  /* Mobile nav */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem var(--space-xl) var(--space-xl);
    background: rgba(10,14,23,0.98);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glass);
    transition: right 0.4s var(--ease-out);
    gap: var(--space-lg);
  }
  .nav-links.open { right: 0; }
  .nav-hamburger { display: flex; }

  .services-grid { grid-template-columns: 1fr; }
  .founder-grid  { grid-template-columns: 1fr; }
  .founder-photo-wrapper { max-width: 280px; } 
  .contact-grid  { grid-template-columns: 1fr; }
  .values-strip  { grid-template-columns: 1fr; }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .hero h1 { font-size: var(--fs-hero); }
}

@media (max-width: 480px) {
  :root {
    --fs-hero: 2.25rem;
  }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn-primary,
  .hero-buttons .btn-outline { width: 100%; justify-content: center; }
}