/* ==========================================================================
   Jelic Systems — Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   Custom Properties
   -------------------------------------------------------------------------- */

:root {
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-bg-dark: #060606;
  --color-surface: #141414;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-subtle: rgba(255, 255, 255, 0.04);

  --color-text: #e8e8e8;
  --color-text-muted: #888888;
  --color-text-dim: #555555;

  --color-accent: #4f7cff;
  --color-accent-hover: #6b93ff;
  --color-accent-dim: rgba(79, 124, 255, 0.12);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --max-width: 1120px;
  --section-padding: 96px;
  --nav-height: 64px;

  --radius: 8px;
  --radius-lg: 16px;

  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img, svg {
  display: block;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 500;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 3.5vw, 2.75rem); }
h3 { font-size: 1.125rem; font-weight: 500; }

p {
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */

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

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

.section--dark {
  background-color: var(--color-bg-dark);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.section__heading {
  margin-bottom: 48px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, #0a0f2e 0%, #0d1f6e 40%, #1a3aad 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(13, 31, 110, 0.4);
}

.btn--primary:hover {
  background: linear-gradient(135deg, #0d1440 0%, #122585 40%, #2048cc 100%);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(13, 31, 110, 0.5);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(13, 31, 110, 0.3);
}

.btn--large {
  padding: 16px 32px;
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: border-color var(--transition-slow);
}

.nav.scrolled {
  border-bottom-color: var(--color-border);
}

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

.nav__logo {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: -0.01em;
  transition: color var(--transition);
}

.nav__logo:hover {
  color: #fff;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--transition);
}

.nav__links a:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.05);
}

.nav__cta {
  background-color: var(--color-accent) !important;
  color: #fff !important;
  padding: 8px 16px !important;
}

.nav__cta:hover {
  background-color: var(--color-accent-hover) !important;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 32px;
  height: 32px;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: 32px;
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__headline {
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.55);
  max-width: 700px;
  font-weight: 300;
  letter-spacing: -0.03em;
}

.hero__headline--accent {
  color: #fff;
  font-weight: 400;
}

.hero__sub {
  max-width: 560px;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text-muted);
  margin-bottom: 48px;
}

/* Hero canvas */
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.9;
}

/* Hero background grid */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 124, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 124, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 100%);
  pointer-events: none;
}

/* Radial glow */
.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 124, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */

.about__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about__text p {
  margin-bottom: 20px;
}

.about__emphasis {
  font-size: 1rem;
  color: var(--color-text) !important;
  line-height: 1.7;
  padding-left: 20px;
  border-left: 2px solid var(--color-accent);
  margin-top: 32px !important;
}

.about__stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 60px;
}

.stat {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  transition: border-color var(--transition);
}

.stat:hover {
  border-color: rgba(79, 124, 255, 0.25);
}

.stat__value {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.stat__label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background-color: var(--color-bg-dark);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition);
}

.service-card__bg {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 160px;
  height: 160px;
  opacity: 0.13;
  color: var(--color-accent);
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.service-card:hover .service-card__bg {
  opacity: 0.2;
}

.service-card:hover {
  background-color: #0e0e0e;
}

.service-card__icon {
  width: 44px;
  height: 44px;
  background-color: var(--color-accent-dim);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.service-card__title {
  color: var(--color-text);
  margin-bottom: 12px;
}

.service-card__desc {
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 20px;
  color: var(--color-text-muted);
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-card__list li {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  padding-left: 16px;
  position: relative;
}

.tech-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.tech-icon {
  width: 26px;
  height: 26px;
  opacity: 0.5;
  transition: opacity var(--transition), transform var(--transition);
  filter: saturate(0.6);
}

.tech-icon:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  filter: saturate(1);
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 1px;
  background-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Approach
   -------------------------------------------------------------------------- */

.approach__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.approach-item {
  position: relative;
}

.approach-item__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.approach-item h3 {
  color: var(--color-text);
  margin-bottom: 12px;
}

.approach-item p {
  font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Capabilities
   -------------------------------------------------------------------------- */

.capabilities__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.capability {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  transition: all var(--transition);
}

.capability:hover {
  border-color: rgba(79, 124, 255, 0.2);
  color: var(--color-text);
}

.capability__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Sectors
   -------------------------------------------------------------------------- */

.sectors__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sector-item {
  background-color: var(--color-bg-dark);
  padding: 32px 28px;
  transition: background-color var(--transition);
}

.sector-item:hover {
  background-color: #0e0e0e;
}

.sector-item__icon {
  color: var(--color-accent);
  margin-bottom: 16px;
  opacity: 0.9;
}

.sector-item__name {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.sector-item__desc {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--color-text-dim);
}

@media (max-width: 900px) {
  .sectors__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .sectors__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Why Jelic Systems
   -------------------------------------------------------------------------- */

.why__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

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

.why-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  transition: all var(--transition);
}

.why-item:hover {
  border-color: rgba(79, 124, 255, 0.2);
  background-color: rgba(79, 124, 255, 0.04);
}

.why-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.why-item span {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */

.contact {
  border-top: 1px solid var(--color-border);
}

.contact__inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 0;
}

.contact__heading {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  color: #fff;
  margin-bottom: 20px;
}

.contact__sub {
  font-size: 1.0625rem;
  margin-bottom: 40px;
}

/* --------------------------------------------------------------------------
   Contact Form
   -------------------------------------------------------------------------- */

.contact-form {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.contact-form__field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

.contact-form__optional {
  color: var(--color-text-dim);
  font-weight: 400;
}

.contact-form__field input,
.contact-form__field textarea {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  padding: 12px 16px;
  transition: border-color var(--transition), background-color var(--transition);
  outline: none;
  width: 100%;
}

.contact-form__field textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.contact-form__field input::placeholder,
.contact-form__field textarea::placeholder {
  color: var(--color-text-dim);
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
  border-color: rgba(79, 124, 255, 0.5);
  background-color: rgba(79, 124, 255, 0.04);
}

.contact-form__field input.error,
.contact-form__field textarea.error {
  border-color: rgba(255, 80, 80, 0.5);
}

.contact-form__footer {
  margin-top: 8px;
}

.contact-form__success {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 14px 18px;
  background-color: rgba(40, 200, 120, 0.08);
  border: 1px solid rgba(40, 200, 120, 0.2);
  border-radius: var(--radius);
  color: #4cd98a;
  font-size: 0.9rem;
}

.contact-form__error {
  margin-top: 16px;
  padding: 14px 18px;
  background-color: rgba(255, 80, 80, 0.08);
  border: 1px solid rgba(255, 80, 80, 0.2);
  border-radius: var(--radius);
  color: #ff8080;
  font-size: 0.9rem;
}

.cf-btn-spinner {
  animation: spin 0.8s linear infinite;
}

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

@media (max-width: 640px) {
  .contact-form__row {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  background-color: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 32px;
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 24px;
}

.footer__name {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.footer__tagline {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.footer__nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.footer__nav a {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: var(--color-text-muted);
}

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-subtle);
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* --------------------------------------------------------------------------
   Scroll animations
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --------------------------------------------------------------------------
   Responsive — Tablet
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  :root {
    --section-padding: 72px;
  }

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

  .about__stats {
    flex-direction: row;
    padding-top: 0;
    flex-wrap: wrap;
  }

  .stat {
    flex: 1;
    min-width: 160px;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .approach__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .why__layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .capabilities__grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 640px) {
  :root {
    --section-padding: 56px;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    z-index: 99;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: rgba(10, 10, 10, 0.98);
    border-bottom: 1px solid var(--color-border);
    padding: 12px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .nav__links.open {
    display: flex;
  }

  .nav__links a {
    padding: 14px 16px;
    border-radius: var(--radius);
    text-align: left;
  }

  .nav__cta {
    margin-top: 8px;
  }

  .hero__inner {
    padding: 60px 24px;
  }

  .about__stats {
    flex-direction: column;
  }

  .footer__inner {
    flex-direction: column;
    gap: 24px;
  }

  .footer__nav {
    flex-wrap: wrap;
    gap: 16px;
  }

  .service-card {
    padding: 28px;
  }
}

/* --------------------------------------------------------------------------
   Print
   -------------------------------------------------------------------------- */

@media print {
  .nav, .hero__grid { display: none; }
  body { background: #fff; color: #000; }
  a::after { content: " (" attr(href) ")"; }
}