/* ============================================
   Ophir AI Solutions — Immersive / Cinematic Landing Page
   ============================================ */

:root {
  --black: #030504;
  --black-2: #060a08;
  --black-3: #0a100d;
  --white: #f4f7f5;
  --gray: #8f9a95;
  --gray-dim: #545e5a;
  --neon: #39ff8f;
  --neon-dim: #1c8a52;
  --neon-glow: rgba(57, 255, 143, 0.55);
  --border: rgba(57, 255, 143, 0.16);
  --font-display: 'Unbounded', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
  cursor: default;
  line-height: 1.5;
}

::selection {
  background: var(--neon);
  color: var(--black);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- Background layers ---------- */

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 0%, #06120b 0%, var(--black) 55%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(57, 255, 143, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 143, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 40%, transparent 90%);
}

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.scan-line {
  position: fixed;
  left: 0; right: 0;
  height: 140px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(57,255,143,0.05), transparent);
  animation: scan 9s linear infinite;
  opacity: 0.6;
}
@keyframes scan {
  0% { top: -140px; }
  100% { top: 100vh; }
}

.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 380px;
  height: 380px;
  margin-left: -190px;
  margin-top: -190px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--neon-glow) 0%, transparent 70%);
  opacity: 0;
  z-index: 4;
  pointer-events: none;
  filter: blur(10px);
  transition: opacity 0.4s ease;
  will-change: transform;
}
.cursor-glow.active { opacity: 0.12; }

@media (max-width: 860px), (hover: none) {
  .cursor-glow { display: none; }
}

/* ---------- Layout helpers ---------- */

main { position: relative; z-index: 5; }

.section-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-tag {
  font-family: var(--font-mono);
  color: var(--neon);
  letter-spacing: 0.02em;
  font-size: 0.85rem;
  margin-bottom: 18px;
}
.section-tag::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 1px;
  margin-left: 2px;
  background: var(--neon);
  vertical-align: middle;
  animation: cursor-blink 1.1s steps(1) infinite;
}
@keyframes cursor-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Navbar ---------- */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 40px;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(3, 5, 4, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 14px 40px;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}
.nav-logo span { color: var(--neon); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-links a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--gray);
  transition: color 0.3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--neon);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  padding: 9px 20px;
  border: 1px solid var(--neon-dim);
  border-radius: 2px;
  color: var(--neon) !important;
  transition: all 0.3s;
}
.nav-cta:hover {
  background: var(--neon);
  color: var(--black) !important;
  box-shadow: 0 0 24px var(--neon-glow);
}
.nav-cta::after { display: none; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
.lang-option {
  color: var(--gray-dim);
  padding: 2px 1px;
  letter-spacing: 0.03em;
  transition: color 0.3s;
}
.lang-option:hover { color: var(--white); }
.lang-option.active {
  color: var(--neon);
  text-shadow: 0 0 12px var(--neon-glow);
}
.lang-sep { color: var(--gray-dim); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  z-index: 60;
}
.nav-toggle span {
  display: block;
  height: 1px;
  background: var(--white);
  transition: all 0.3s;
}

@media (max-width: 860px) {
  .navbar { padding: 18px 24px; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    background: rgba(3, 6, 5, 0.98);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.4rem; }
  .lang-toggle { font-size: 1.1rem; gap: 10px; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

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

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 80px;
}

.hero-content { max-width: 900px; }

.eyebrow {
  font-family: var(--font-mono);
  color: var(--neon);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 11vw, 8rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}

.decode-text {
  position: relative;
  display: inline-block;
  color: var(--white);
  text-shadow: 0 0 44px var(--neon-glow);
}
.decode-text .char {
  display: inline-block;
}
.decode-text .char.scrambling {
  color: var(--neon);
}
.decode-text .char.settled {
  animation: settle-flash 0.4s ease;
}
@keyframes settle-flash {
  0% { color: var(--neon); text-shadow: 0 0 18px var(--neon-glow); }
  100% { color: var(--white); text-shadow: 0 0 44px var(--neon-glow); }
}

.decode-text-sub {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(0.8rem, 1.8vw, 1.15rem);
  letter-spacing: 0.5em;
  padding-left: 0.5em; /* balance the trailing letter-spacing so the word reads centered */
  color: var(--neon);
  text-shadow: 0 0 20px var(--neon-glow);
}

.hero-sub {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--white);
  margin-bottom: 18px;
  font-weight: 600;
}

.hero-desc {
  color: var(--gray);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 44px;
}

.hero-actions {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 32px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: all 0.35s var(--ease);
  overflow: hidden;
}

.btn-primary {
  background: var(--neon);
  color: var(--black);
  font-weight: 600;
  box-shadow: 0 0 0 0 var(--neon-glow);
}
.btn-primary:hover {
  box-shadow: 0 0 32px var(--neon-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid rgba(244, 247, 245, 0.2);
  color: var(--white);
}
.btn-ghost:hover {
  border-color: var(--neon);
  color: var(--neon);
  transform: translateY(-2px);
}

.scroll-cue {
  position: absolute;
  bottom: 42px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--gray-dim);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.24em;
}
.scroll-line {
  width: 1px;
  height: 42px;
  background: linear-gradient(180deg, var(--neon) 0%, transparent 100%);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

.hero-fade {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 220px;
  background: linear-gradient(180deg, transparent, var(--black));
  pointer-events: none;
}

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

.about {
  padding: 160px 0;
  border-top: 1px solid var(--border);
  position: relative;
}

.about-text {
  color: var(--gray);
  font-size: 1.15rem;
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 64px;
}

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

.about-stat {
  padding: 28px 0;
  border-top: 1px solid var(--border);
}
.about-stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--neon);
  font-weight: 700;
  margin-bottom: 8px;
}
.about-stat-label {
  color: var(--gray);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .about-grid { grid-template-columns: 1fr; gap: 0; }
}

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

.services {
  padding: 100px 0 160px;
  position: relative;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.service-card {
  background: var(--black);
  padding: 44px 40px;
  transition: background 0.4s var(--ease);
  position: relative;
}
.service-card:hover {
  background: var(--black-3);
}
.service-card:hover .service-index {
  color: var(--neon);
  text-shadow: 0 0 20px var(--neon-glow);
}
.service-index {
  display: block;
  font-family: var(--font-mono);
  color: var(--gray-dim);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  margin-bottom: 22px;
  transition: color 0.4s, text-shadow 0.4s;
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.service-card p {
  color: var(--gray);
  font-size: 0.98rem;
  line-height: 1.65;
}

@media (max-width: 700px) {
  .service-list { grid-template-columns: 1fr; }
}

/* ---------- Process ---------- */

.process {
  padding: 100px 0 160px;
  border-top: 1px solid var(--border);
}

.timeline {
  display: flex;
  flex-direction: column;
  margin-top: 30px;
}

.timeline-step {
  display: flex;
  gap: 32px;
  padding: 34px 0;
  border-top: 1px solid var(--border);
  align-items: flex-start;
}
.timeline-step:last-child { border-bottom: 1px solid var(--border); }

.timeline-marker span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--black);
  background: var(--neon);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  box-shadow: 0 0 20px var(--neon-glow);
}

.timeline-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 8px;
}
.timeline-body p {
  color: var(--gray);
  max-width: 520px;
}

@media (max-width: 600px) {
  .timeline-step { gap: 20px; }
  .timeline-marker span { width: 36px; height: 36px; font-size: 0.75rem; }
}

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

.contact {
  padding: 100px 0 180px;
  border-top: 1px solid var(--border);
}

.contact-sub {
  color: var(--gray);
  font-size: 1.05rem;
  margin-bottom: 50px;
  max-width: 520px;
}

.contact-form {
  max-width: 640px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-field {
  position: relative;
  margin-bottom: 30px;
}

.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.form-field .optional {
  text-transform: none;
  color: var(--gray-dim);
  letter-spacing: 0;
}

.form-field input,
.form-field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(244, 247, 245, 0.18);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 10px 2px;
  outline: none;
  resize: vertical;
  transition: border-color 0.3s;
}
.form-field textarea { min-height: 100px; }

.form-field input:focus,
.form-field textarea:focus {
  border-color: transparent;
}

.field-line {
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 0;
  background: var(--neon);
  box-shadow: 0 0 12px var(--neon-glow);
  transition: width 0.4s var(--ease);
}
.form-field input:focus ~ .field-line,
.form-field textarea:focus ~ .field-line {
  width: 100%;
}

.btn-submit {
  min-width: 200px;
  margin-top: 10px;
  position: relative;
}
.btn-submit .btn-loader {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(3,5,4,0.3);
  border-top-color: var(--black);
  border-radius: 50%;
  margin-left: 10px;
  animation: spin 0.7s linear infinite;
}
.btn-submit.loading .btn-loader { display: inline-block; }
.btn-submit.loading .btn-text { opacity: 0.7; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-status {
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--neon);
  min-height: 1.2em;
}
.form-status.error { color: #ff5f5f; }

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

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

.footer {
  border-top: 1px solid var(--border);
  padding: 48px 32px;
  position: relative;
  z-index: 5;
}
.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.footer-brand span { color: var(--neon); }
.footer-meta, .footer-copy {
  font-family: var(--font-mono);
  color: var(--gray-dim);
  font-size: 0.8rem;
}