/* ==========================================================================
   OLINARA TECH SOLUTIONS - CORE STYLESHEET
   Modern, Ultra-Fast, Responsive Enterprise Design System
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #070b14;
  --bg-surface: #0e1526;
  --bg-surface-elevated: #151f38;
  --bg-card: rgba(19, 29, 53, 0.7);
  --bg-card-hover: rgba(28, 43, 77, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(56, 189, 248, 0.35);
  
  --primary: #0077fe;
  --primary-glow: rgba(0, 119, 254, 0.3);
  --primary-hover: #1d8cf8;
  --accent: #38bdf8;
  --accent-light: #7dd3fc;
  --accent-glow: rgba(56, 189, 248, 0.25);
  
  --emerald: #10b981;
  --emerald-bg: rgba(16, 185, 129, 0.12);
  --amber: #f59e0b;
  --amber-bg: rgba(245, 158, 11, 0.12);

  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #070b14;

  /* Typography */
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing & Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  --container-max: 1200px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #132247 0%, #070b14 70%);
}

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

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

ul {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-logo-img {
  height: 52px;
  width: 52px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 1.05rem;
  background: linear-gradient(135deg, #ffffff 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  font-weight: 600;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.4rem 0;
}

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

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-main);
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition);
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
  box-shadow: 0 6px 24px rgba(0, 119, 254, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--text-inverse);
  font-weight: 700;
}

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

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-light);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  padding: 5rem 0 4.5rem;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 119, 254, 0.22) 0%, rgba(56, 189, 248, 0.08) 50%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 1.5rem 0 1.25rem;
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.2rem;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Trust Metrics Strip */
.trust-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.metric-item {
  text-align: center;
  border-right: 1px solid var(--border-subtle);
  padding: 0 1rem;
}

.metric-item:last-child {
  border-right: none;
}

.metric-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, #ffffff 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   PAGE HEADERS (INTERNAL PAGES)
   ========================================================================== */
.page-header {
  padding: 4.5rem 0 3rem;
  text-align: center;
  position: relative;
  background: radial-gradient(circle at 50% 0%, #15244d 0%, var(--bg-dark) 70%);
  border-bottom: 1px solid var(--border-subtle);
}

.page-header-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 1rem 0 0.8rem;
}

.page-header-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
}

/* ==========================================================================
   SECTIONS & CARDS
   ========================================================================== */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-darker {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.75rem 0 0.85rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

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

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.card-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(0, 119, 254, 0.15);
  border: 1px solid rgba(0, 119, 254, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.4rem;
  margin-bottom: 1.4rem;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: var(--text-main);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.card-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: #cbd5e1;
}

.card-list-item svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 3px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
}

.card-link:hover {
  color: #ffffff;
  gap: 0.65rem;
}

/* ==========================================================================
   FEATURE / DETAILED SERVICE BLOCKS
   ========================================================================== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-bottom: 4.5rem;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-content h3 {
  font-size: 1.85rem;
  font-weight: 800;
  margin: 0.75rem 0 1rem;
  letter-spacing: -0.02em;
}

.feature-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.feature-visual {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
}

.feature-visual::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.spec-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.spec-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.95rem;
}

.spec-info h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--text-main);
}

.spec-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ==========================================================================
   ENGINEERING PROCESS / STEPS
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.process-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  position: relative;
  transition: var(--transition);
}

.process-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
}

.process-step-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.process-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.process-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   SLA MATRIX & TABLES
   ========================================================================== */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.sla-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.sla-table th {
  background: rgba(255, 255, 255, 0.03);
  padding: 1.1rem 1.4rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  border-bottom: 1px solid var(--border-subtle);
}

.sla-table td {
  padding: 1.1rem 1.4rem;
  font-size: 0.95rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-subtle);
}

.sla-table tr:last-child td {
  border-bottom: none;
}

.sla-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.sla-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-light);
}

/* ==========================================================================
   CALL TO ACTION (CTA)
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, #101c3d 0%, #0c142b 100%);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 450px;
  height: 250px;
  background: radial-gradient(circle, rgba(0, 119, 254, 0.25) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.cta-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 2rem;
}

/* ==========================================================================
   FORMS & CONTACT
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 3rem;
}

.contact-info-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-channel {
  display: flex;
  gap: 1.2rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.contact-channel-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: rgba(0, 119, 254, 0.15);
  border: 1px solid rgba(0, 119, 254, 0.3);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.contact-channel-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.contact-channel-detail {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.contact-channel-link {
  color: var(--accent);
  font-weight: 600;
}

.contact-channel-link:hover {
  text-decoration: underline;
}

.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-dark);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

.form-alert {
  padding: 1rem 1.2rem;
  border-radius: var(--radius-md);
  margin-top: 1.2rem;
  display: none;
  font-size: 0.95rem;
}

.form-alert.success {
  background: var(--emerald-bg);
  border: 1px solid var(--emerald);
  color: #a7f3d0;
}

.form-alert.is-visible {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background-color: #04070d;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-top: 1rem;
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

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

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.6rem;
  }
  
  .trust-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .metric-item:nth-child(2) {
    border-right: none;
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(7, 11, 20, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    align-items: flex-start;
    transform: translateY(-150%);
    transition: transform 0.3s ease-in-out;
    opacity: 0;
    pointer-events: none;
  }
  
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  .header-actions .btn {
    display: none;
  }

  .hero-title {
    font-size: 2.1rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .feature-block, .feature-block.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 2rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .trust-metrics {
    grid-template-columns: 1fr;
  }
  
  .metric-item {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 1.5rem;
  }
  
  .metric-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}