/* ============================================================
   XETTALI — Futuristic dark SaaS
   Electric accents · GSAP animations · Eidra structure
   ============================================================ */

/* === TOKENS === */
:root {
  --bg:         #050608;
  --bg-2:       #0c0f1a;
  --acc-1:      #60a5fa;       /* electric blue  */
  --acc-2:      #a78bfa;       /* sci-fi purple  */
  --glow-1:     rgba(96,  165, 250, 0.16);
  --glow-2:     rgba(167, 139, 250, 0.11);
  --txt-1:      #f1f5f9;
  --txt-2:      #64748b;
  --txt-3:      #1e293b;
  --border:     rgba(255, 255, 255, 0.06);
  --border-acc: rgba(96,  165, 250, 0.22);
  --grad:       linear-gradient(135deg, #60a5fa, #a78bfa);
  --max-w:      1200px;
  --pad-x:      2rem;
  --pad-sec:    7rem;
}

/* === RESET === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--txt-1);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection { background: rgba(96, 165, 250, 0.2); color: var(--txt-1); }

a  { color: inherit; text-decoration: none; }
em { font-style: normal; }
ul[role="list"] { list-style: none; }

/* === GRADIENT TEXT === */
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === LAYOUT === */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* === TYPOGRAPHY === */
h1 {
  font-size: clamp(2.8rem, 7.5vw, 6.8rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.045em;
  color: var(--txt-1);
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--txt-1);
}

h3 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--txt-1);
}

p { color: var(--txt-2); line-height: 1.75; }
strong { color: var(--txt-1); }

/* === STATUS DOT === */
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
  flex-shrink: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 8px #4ade80; }
  50%       { box-shadow: 0 0 16px #4ade80, 0 0 32px rgba(74, 222, 128, 0.3); }
}

/* === NAV === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem var(--pad-x);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.is-scrolled {
  background: rgba(5, 6, 8, 0.88);
  border-bottom-color: var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

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

.brand {
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--txt-2);
  transition: color 0.2s ease;
  letter-spacing: 0.01em;
}

.nav-links a:hover { color: var(--txt-1); }

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

/* — Background decoration — */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}

.orb--a {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.18), transparent 70%);
  top: -12%;
  right: -8%;
  animation: orb-a 13s ease-in-out infinite;
}

.orb--b {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.14), transparent 70%);
  bottom: 5%;
  left: -10%;
  animation: orb-b 17s ease-in-out infinite;
}

@keyframes orb-a {
  0%, 100% { transform: translate(0, 0)   scale(1);    }
  40%       { transform: translate(-28px, 22px) scale(1.06); }
  70%       { transform: translate(18px, -24px) scale(0.96); }
}

@keyframes orb-b {
  0%, 100% { transform: translate(0, 0)   scale(1); }
  50%       { transform: translate(32px, -22px) scale(1.05); }
}

/* Dot-grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black, transparent);
}

/* — Hero content — */
.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-top: 11rem;
  padding-bottom: 5.5rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--txt-2);
}

/* Mask-reveal: .line clips its .clip child (GSAP animates yPercent) */
.hero-title {
  display: flex;
  flex-direction: column;
}

.hero-title .line {
  display: block;
  overflow: hidden;
  line-height: 1.06;
  padding-bottom: 0.05em;
}

.hero-title .clip { display: block; }

.hero-foot {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: end;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

/* === LEAD === */
.lead {
  font-size: 1rem;
  color: var(--txt-2);
  line-height: 1.75;
  max-width: 44ch;
}

/* === BUTTONS === */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Primary — gradient fill, magnetic, shine sweep */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.7rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: #050608;
  background: var(--grad);
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
  will-change: transform;
}

.btn-primary:hover {
  box-shadow: 0 0 40px rgba(96, 165, 250, 0.4), 0 0 80px rgba(96, 165, 250, 0.16);
}

.btn-arrow {
  display: inline-block;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-primary:hover .btn-arrow { transform: translateX(5px); }

/* Shine sweep across button on hover */
.btn-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.45) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.55s ease;
}

.btn-primary:hover .btn-shine { transform: translateX(100%); }

/* Ghost */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.9rem 1.7rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--txt-2);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.btn-ghost:hover {
  color: var(--txt-1);
  border-color: var(--border-acc);
}

/* === SECTIONS === */
.section {
  padding: var(--pad-sec) 0;
  border-bottom: 1px solid var(--border);
}

.contact-section { border-bottom: none; }

.section-head {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem 4rem;
  align-items: start;
  margin-bottom: 3.5rem;
}

.section-tag {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--acc-1);
  padding-top: 0.45rem;
}

/* === COLUMN GRID === */
/* gap:1px + background = thin border between cells */
.col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.col-card {
  position: relative;
  padding: 2.25rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: hidden;
  transition: background 0.3s ease;
  transform-style: preserve-3d;
}

.col-card:hover { background: var(--bg-2); }

/* Gradient top-border reveal on hover */
.col-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.42s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.col-card:hover::before { transform: scaleX(1); }

/* Traveling radial glow following cursor (positioned via GSAP) */
.card-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow-1), transparent 70%);
  pointer-events: none;
  opacity: 0;
  top: 0; left: 0;
  transform: translate(-50%, -50%);
  will-change: transform, opacity;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--acc-1);
}

.card-number {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--txt-3);
  font-variant-numeric: tabular-nums;
}

/* === EXPERTISE ROW === */
.expertise-row {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.01);
}

.expertise-row p {
  font-size: 0.74rem;
  color: var(--txt-3);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* === CONTACT === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.65fr;
  gap: 5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-note {
  font-size: 0.88rem;
  color: var(--txt-2);
  line-height: 1.8;
}

/* === CONTACT FORM === */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

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

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--txt-2);
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--txt-1);
  font-family: inherit;
  font-size: 0.88rem;
  line-height: 1.5;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-input::placeholder { color: var(--txt-3); }

.form-input:focus {
  border-color: var(--acc-1);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1), 0 0 24px rgba(96, 165, 250, 0.07);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-select option { background: var(--bg-2); color: var(--txt-1); }

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.65;
}

.btn-submit { align-self: flex-start; margin-top: 0.25rem; }

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.contact-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--acc-1);
}

.contact-link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--txt-1);
  transition: color 0.2s ease;
}

.contact-link:hover { color: var(--acc-1); }

.contact-desc {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* === FOOTER === */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 3rem;
  align-items: start;
}

.footer-brand {
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-legal p {
  font-size: 0.74rem;
  color: var(--txt-3);
  line-height: 1.65;
}

.footer-copy {
  font-size: 0.74rem;
  color: var(--txt-3);
  white-space: nowrap;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  :root { --pad-sec: 4.5rem; --pad-x: 1.25rem; }

  .hero-inner { padding-top: 8rem; padding-bottom: 4rem; gap: 2.5rem; }

  .hero-foot { grid-template-columns: 1fr; gap: 2rem; }

  .section-head { grid-template-columns: 1fr; gap: 1rem; }

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

  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row     { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 1.25rem; }
}

@media (max-width: 480px) {
  .nav-links li:not(:last-child) { display: none; }

  h1 { letter-spacing: -0.03em; }
}

/* === A11Y === */
@media (prefers-reduced-motion: reduce) {
  *, .orb {
    animation: none !important;
    transition: none !important;
  }
}

@media print {
  body { background: #fff; color: #000; }
  .nav, .actions, .hero-bg { display: none; }
}