/* ============================================================
   TS Controls — styles.css
   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --color-bg:           #0a1628;
  --color-surface:      #0f2244;
  --color-surface-alt:  #0d1e3a;
  --color-accent:       #2176FF;
  --color-highlight:    #00c8e0;
  --color-border:       #1e3a6e;
  --color-text:         #ffffff;
  --color-text-muted:   #a0b4cc;
  --color-error:        #e05252;

  --font-primary: 'Rajdhani', 'Barlow', system-ui, sans-serif;

  --nav-height: 68px;
  --max-width:  1200px;
  --card-radius: 4px;

  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

button {
  cursor: pointer;
  font-family: var(--font-primary);
  border: none;
  background: none;
}

section {
  scroll-margin-top: var(--nav-height);
}

/* ── Utility: section container ────────────────────────────── */
.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl);
}

/* ── Utility: section header ───────────────────────────────── */
.section-header {
  margin-bottom: var(--space-2xl);
}

.section-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-highlight);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.section-rule {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  margin-top: var(--space-md);
}

/* ── Utility: buttons ──────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75em 2em;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--card-radius);
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  border: 2px solid var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: transparent;
  color: var(--color-highlight);
  border-color: var(--color-highlight);
  box-shadow: 0 0 18px rgba(0, 200, 224, 0.25);
  outline: none;
}

/* ── Scroll-reveal animations ──────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}
[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

#navbar.navbar--scrolled {
  background: var(--color-surface);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
  border-bottom-color: var(--color-border);
}

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

.nav-logo img {
  height: 38px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

.nav-links a.active {
  color: var(--color-highlight);
  border-bottom-color: var(--color-highlight);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 6px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile menu */
.nav-mobile-menu {
  position: absolute;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.nav-mobile-menu.nav-mobile-menu--open {
  max-height: 320px;
}

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  padding: var(--space-md) var(--space-xl) var(--space-xl);
  gap: var(--space-md);
}

.nav-mobile-links a {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition-fast);
}

.nav-mobile-links a:hover,
.nav-mobile-links a.active {
  color: var(--color-highlight);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 65% at 25% 35%, #102a5e 0%, transparent 70%);
  pointer-events: none;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.12;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-xl) var(--space-2xl);
  max-width: 760px;
  width: 100%;
}

.hero-logo {
  max-width: min(480px, 82vw);
  margin: 0 auto var(--space-xl);
}

h1.hero-tagline,
.hero-tagline {
  font-size: clamp(1.4rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: 1.25;
}

.hero-tagline span {
  color: var(--color-highlight);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 580px;
  margin: 0 auto var(--space-xl);
  line-height: 1.75;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-text-muted);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--color-surface-alt);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--card-radius);
  padding: var(--space-xl) var(--space-lg);
  transition: border-color var(--transition-base), border-top-color var(--transition-base),
              box-shadow var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-highlight);
  border-top-color: var(--color-highlight);
  box-shadow: 0 4px 28px rgba(0, 200, 224, 0.1);
  transform: translateY(-4px);
}

.service-card[data-animate]:nth-child(1) { transition-delay: 0ms; }
.service-card[data-animate]:nth-child(2) { transition-delay: 80ms; }
.service-card[data-animate]:nth-child(3) { transition-delay: 160ms; }
.service-card[data-animate]:nth-child(4) { transition-delay: 240ms; }

.service-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-lg);
  color: var(--color-highlight);
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.service-card__body {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.service-card__tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  padding: 2px 8px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-content p {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.about-stats {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.stat-number {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-highlight);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Panel mockup */
.about-visual {
  position: relative;
}

.panel-mockup {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-accent);
  box-shadow:
    0 0 0 1px rgba(33, 118, 255, 0.3),
    0 8px 48px rgba(33, 118, 255, 0.18);
}

.panel-mockup__bar {
  background: #111;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding: 0 var(--space-lg);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: #888;
  border-bottom: 1px solid #1a1a1a;
  position: relative;
}

.panel-mockup__bar .bar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #aaa;
  font-weight: 600;
}

.panel-mockup__bar .bar-icons {
  display: flex;
  gap: 10px;
  color: #666;
  font-size: 12px;
}

.panel-mockup img {
  display: block;
  width: 100%;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--color-surface-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-3xl);
  align-items: start;
}

/* Contact info */
.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-info__item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info__item:first-child {
  padding-top: 0;
}

.contact-info__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-highlight);
}

.contact-info__icon svg {
  width: 100%;
  height: 100%;
}

.contact-info__label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

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

.contact-info__value a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.contact-info__value a:hover {
  color: var(--color-highlight);
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: 0.75em 1em;
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #3d5580;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(33, 118, 255, 0.14);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-status {
  font-size: 0.95rem;
  font-weight: 600;
  min-height: 1.5em;
  transition: color var(--transition-fast);
}

.form-status.success { color: var(--color-highlight); }
.form-status.error   { color: var(--color-error); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-logo img {
  height: 32px;
  width: auto;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.footer-nav {
  display: flex;
  gap: var(--space-lg);
}

.footer-nav a {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-highlight);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-visual {
    max-width: 600px;
  }
}

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

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .section-container {
    padding: var(--space-2xl) var(--space-lg);
  }

  .hero-content {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .about-stats {
    gap: var(--space-lg);
  }
}

/* ── Accessibility: reduced motion ─────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after,
  [data-animate] {
    transition: none !important;
    animation: none !important;
  }
  [data-animate] {
    opacity: 1;
    transform: none;
  }
}