/* ============================
   LEEK TECH SOLUTIONS — STYLES
   ============================ */

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

:root {
  /* Brand palette */
  --emerald-50:  #f0fdf4;
  --emerald-100: #dcfce7;
  --emerald-200: #bbf7d0;
  --emerald-300: #86efac;
  --emerald-400: #4ade80;
  --emerald-500: #22c55e;
  --emerald-600: #16a34a;
  --emerald-700: #15803d;

  --teal-400: #4ade80;
  --teal-500: #22c55e;

  /* Neutrals */
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gray-950: #0a0f1a;

  /* Semantic */
  --bg-primary:   #0f1623;
  --bg-secondary: #151d2e;
  --bg-card:      rgba(21, 29, 46, 0.7);
  --bg-card-hover:rgba(21, 29, 46, 0.9);
  --border-subtle:rgba(255,255,255,0.08);
  --border-accent:rgba(34,197,94,0.3);

  --text-primary:   #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted:     #6b7280;

  --gradient-brand: linear-gradient(135deg, var(--emerald-400), var(--emerald-500));
  --gradient-hero:  radial-gradient(ellipse at 30% 20%, rgba(34,197,94,0.12) 0%, transparent 50%),
                    radial-gradient(ellipse at 70% 80%, rgba(74,222,128,0.08) 0%, transparent 50%);

  /* Sizes */
  --max-w: 1200px;
  --nav-h: 72px;
  --radius: 16px;
  --radius-sm: 10px;

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

/* --- Utility --- */
.section-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--emerald-400);
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.15);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--gray-950);
  box-shadow: 0 0 24px rgba(34,197,94,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(34,197,94,0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}
.btn-ghost:hover {
  border-color: var(--emerald-400);
  background: rgba(34,197,94,0.06);
}

.btn-full { width: 100%; }

/* ========================
   NAVBAR
   ======================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: background 0.3s, backdrop-filter 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: rgba(5,10,16,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
}

.logo-icon {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.25s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 1px;
  transition: width 0.3s var(--ease-out);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  background: var(--gradient-brand);
  color: var(--gray-950);
  transition: all 0.3s var(--ease-out);
}

.nav-cta:hover {
  box-shadow: 0 0 24px rgba(34,197,94,0.35);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ========================
   HERO
   ======================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 40px) 24px 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
  animation: float 12s ease-in-out infinite;
}

.hero-orb--1 {
  width: 500px;
  height: 500px;
  background: rgba(34,197,94,0.15);
  top: -10%;
  left: 15%;
}

.hero-orb--2 {
  width: 400px;
  height: 400px;
  background: rgba(74,222,128,0.12);
  bottom: 0;
  right: 10%;
  animation-delay: -4s;
}

.hero-orb--3 {
  width: 300px;
  height: 300px;
  background: rgba(74,222,128,0.1);
  top: 40%;
  left: 60%;
  animation-delay: -8s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(30px, -20px) scale(1.05); }
  66%      { transform: translate(-20px, 15px) scale(0.97); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--emerald-300);
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.18);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s var(--ease-out);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.1s var(--ease-out) both;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s 0.2s var(--ease-out) both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
  animation: fadeInUp 0.8s 0.3s var(--ease-out) both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  animation: fadeInUp 0.8s 0.4s var(--ease-out) both;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ========================
   SERVICES
   ======================== */
.services {
  padding: 120px 0;
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 40px 32px;
  transition: all 0.4s var(--ease-out);
  overflow: hidden;
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px);
}

.card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(34,197,94,0.04), transparent 60%);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}

.service-card:hover .card-glow {
  opacity: 1;
}

.service-card.featured {
  border-color: var(--border-accent);
  background: rgba(34,197,94,0.04);
}

.card-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-950);
  background: var(--gradient-brand);
  padding: 4px 12px;
  border-radius: 100px;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--emerald-400);
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.service-card > p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.65;
}

.card-features {
  margin-bottom: 24px;
}

.card-features li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.card-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--emerald-400);
  font-weight: 700;
  font-size: 0.8rem;
}

.card-price {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.card-price strong {
  color: var(--emerald-400);
  font-weight: 700;
}

/* ========================
   WHY US
   ======================== */
.why-us {
  padding: 120px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all 0.35s var(--ease-out);
}

.feature-item:hover {
  background: var(--bg-card);
  border-color: var(--border-subtle);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 18px;
}

.feature-item h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========================
   PROCESS
   ======================== */
.process {
  padding: 120px 0;
  background: var(--bg-secondary);
  position: relative;
}

.process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.process-step {
  flex: 1;
  max-width: 240px;
  text-align: center;
  padding: 0 16px;
}

.step-number {
  font-size: 2.8rem;
  font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.35;
  margin-bottom: 16px;
  line-height: 1;
}

.process-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.process-connector {
  flex-shrink: 0;
  width: 48px;
  height: 2px;
  margin-top: 28px;
  background: linear-gradient(90deg, var(--emerald-500), var(--teal-400));
  opacity: 0.25;
  border-radius: 1px;
}

/* ========================
   CONTACT
   ======================== */
.contact {
  padding: 120px 0;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info .section-tag { margin-bottom: 20px; }

.contact-info h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.contact-info > p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.detail-icon {
  font-size: 1.2rem;
}

/* Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 40px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  padding: 13px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group select {
  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' fill='none'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='%236B7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group select option {
  background: var(--gray-800);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--emerald-500);
  box-shadow: 0 0 0 3px rgba(34,197,94,0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form .btn {
  margin-top: 4px;
}

.btn-loader {
  display: inline-flex;
}

.btn-loader[hidden] {
  display: none;
}

.spinner {
  width: 20px;
  height: 20px;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
}

.form-status.success {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.25);
  color: var(--emerald-300);
}

.form-status.error {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.25);
  color: #fca5a5;
}

/* ========================
   FOOTER
   ======================== */
.footer {
  padding: 48px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  gap: 28px;
  justify-content: center;
  margin-bottom: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.25s;
}

.footer-links a:hover {
  color: var(--emerald-400);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========================
   SCROLL REVEAL
   ======================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

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

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

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

  .process-steps {
    flex-direction: column;
    align-items: center;
  }

  .process-connector {
    width: 2px;
    height: 32px;
    margin: 0;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Mobile menu */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(5,10,16,0.97);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-subtle);
  }

  .nav-cta.open {
    display: inline-flex;
    position: absolute;
    top: calc(var(--nav-h) + 160px);
    left: 24px;
    right: 24px;
    text-align: center;
    justify-content: center;
    background: rgba(5,10,16,0.97);
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 24px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-stats {
    gap: 28px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .contact-form {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
}