/* ============================================
   DI Digital Studio — Landing styles
   ============================================ */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--di-sans);
  background: var(--di-bg);
  color: var(--di-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

.di-container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Background */
.di-grid-bg {
  position: fixed; inset: 0; z-index: -2;
  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: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
  pointer-events: none;
}
.di-glow {
  position: fixed; border-radius: 50%;
  filter: blur(120px); opacity: 0.35;
  z-index: -1; pointer-events: none; will-change: transform;
}
.di-glow-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--di-violet), transparent 70%);
  top: -200px; left: -150px;
  animation: di-float 18s ease-in-out infinite;
}
.di-glow-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--di-cyan), transparent 70%);
  top: 400px; right: -150px;
  animation: di-float 22s ease-in-out infinite reverse;
}
@keyframes di-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 60px) scale(1.1); }
}

/* Gradient text helper (scoped) */
.di-gradient-text {
  background: var(--di-grad-tri);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: di-gradient-shift 8s ease infinite;
}
@keyframes di-gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Nav */
.di-nav {
  position: sticky; top: 0; z-index: 100;
  padding: 16px 0;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 7, 11, 0.6);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}
.di-nav.scrolled { border-bottom-color: var(--di-border); }
.di-nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.di-logo-link { display: flex; align-items: center; gap: 10px; }
.di-logo-text { font-weight: 700; font-size: 17px; letter-spacing: -0.02em; }
.di-logo-accent { color: var(--di-text-dim); font-weight: 400; }
.di-nav-links { display: flex; gap: 32px; }
.di-nav-links a {
  font-size: 14px; color: var(--di-text-dim);
  transition: color 0.2s ease; position: relative;
}
.di-nav-links a:hover { color: var(--di-text); }
.di-nav-links a::after {
  content: ''; position: absolute; bottom: -6px; left: 0;
  width: 0; height: 1px;
  background: var(--di-grad);
  transition: width 0.3s ease;
}
.di-nav-links a:hover::after { width: 100%; }

/* Burger + mobile menu */
.di-burger {
  display: none;
  width: 40px; height: 40px;
  background: transparent; border: none; padding: 0;
  cursor: pointer; position: relative;
}
.di-burger span {
  position: absolute; left: 10px; right: 10px; height: 2px;
  background: var(--di-text); border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease, top 0.3s ease;
}
.di-burger span:nth-child(1) { top: 13px; }
.di-burger span:nth-child(2) { top: 19px; }
.di-burger span:nth-child(3) { top: 25px; }
.di-burger.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.di-burger.is-open span:nth-child(2) { opacity: 0; }
.di-burger.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.di-mobile-menu {
  display: none;
  position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
  background: #07070b;
  padding: 32px 24px; z-index: 99;
  flex-direction: column; gap: 24px;
  opacity: 0; transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  overflow-y: auto;
}
.di-mobile-menu.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
.di-mobile-links { display: flex; flex-direction: column; gap: 4px; }
.di-mobile-links a {
  font-size: 20px; font-weight: 500; color: var(--di-text);
  padding: 14px 4px; border-bottom: 1px solid var(--di-border);
}
.di-mobile-cta { justify-content: center; margin-top: 8px; }

/* Buttons */
.di-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 24px; border-radius: var(--di-r-sm);
  font-size: 15px; font-weight: 500;
  letter-spacing: -0.01em; transition: all 0.2s ease;
  white-space: nowrap; border: 1px solid transparent;
}
.di-btn-sm { padding: 10px 18px; font-size: 14px; }
.di-btn-primary {
  background: var(--di-grad);
  color: #fff;
  border: none;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.3);
}
.di-btn-primary:hover {
  filter: brightness(1.12);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(124, 58, 237, 0.45);
}
.di-btn-ghost {
  background: var(--di-surface); color: var(--di-text);
  border: 1px solid var(--di-border);
}
.di-btn-ghost:hover {
  background: var(--di-surface-hover);
  border-color: var(--di-border-strong);
  transform: translateY(-2px);
}

/* Hero */
.di-hero { padding: 80px 0 60px; position: relative; }
.di-hero-inner { text-align: center; max-width: 960px; margin: 0 auto; }
.di-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--di-surface); border: 1px solid var(--di-border);
  border-radius: 100px; font-size: 13px; color: var(--di-text-dim);
  font-family: var(--di-mono); margin-bottom: 32px;
}
.di-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #22c55e; box-shadow: 0 0 10px #22c55e;
  animation: di-pulse 2s ease-in-out infinite;
}
@keyframes di-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.di-hero h1 {
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 800; line-height: 1.05;
  letter-spacing: -0.035em; margin-bottom: 28px;
  text-wrap: pretty;
}
.di-hero-sub {
  font-size: clamp(17px, 1.8vw, 20px);
  color: var(--di-text-dim);
  max-width: 680px; margin: 0 auto 40px; line-height: 1.6;
}
.di-hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 72px; }
.di-hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; max-width: 680px; margin: 0 auto 80px;
  padding-top: 40px; border-top: 1px solid var(--di-border);
}
.di-stat { text-align: center; }
.di-stat-num {
  font-size: clamp(24px, 3vw, 32px); font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--di-text) 0%, var(--di-text-dim) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.di-stat-label { font-size: 13px; color: var(--di-text-muted); font-family: var(--di-mono); }

/* Orbit visual */
.di-hero-visual { display: flex; justify-content: center; margin-top: 40px; }
.di-orbit {
  position: relative; width: 520px; height: 520px;
  max-width: 100%;
  display: flex; align-items: center; justify-content: center;
}
.di-orbit-ring {
  position: absolute; top: 50%; left: 50%;
  border: 1px solid var(--di-border); border-radius: 50%;
  transform: translate(-50%, -50%);
}
.di-orbit-ring-1 { width: 200px; height: 200px; border-color: rgba(167, 139, 250, 0.25); }
.di-orbit-ring-2 { width: 340px; height: 340px; border-color: rgba(34, 211, 238, 0.18); }
.di-orbit-ring-3 { width: 480px; height: 480px; border-color: rgba(255, 255, 255, 0.06); }
.di-orbit-center {
  position: relative; z-index: 2;
  width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(124, 58, 237, 0.25), transparent 70%);
  display: flex; align-items: center; justify-content: center;
}
.di-orbit-chip {
  position: absolute;
  top: 50%; left: 50%;
  padding: 8px 14px;
  background: rgba(13, 13, 20, 0.9);
  border: 1px solid var(--di-border-strong);
  border-radius: 100px;
  font-family: var(--di-mono);
  font-size: 12px;
  color: var(--di-text);
  white-space: nowrap;
  transform: translate(-50%, -50%) rotate(var(--angle)) translateX(210px) rotate(calc(-1 * var(--angle)));
  backdrop-filter: blur(6px);
}

/* Sections */
.di-section { padding: 100px 0; position: relative; }
.di-section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015), transparent); }
.di-section-head { max-width: 720px; margin: 0 auto 64px; text-align: center; }
.di-eyebrow {
  display: inline-block; font-family: var(--di-mono);
  font-size: 13px; color: var(--di-cyan);
  margin-bottom: 16px; letter-spacing: 0.02em;
}
.di-section h2 {
  font-size: clamp(30px, 4.5vw, 48px);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -0.03em; margin-bottom: 16px;
  text-wrap: pretty;
}
.di-section-sub { font-size: 17px; color: var(--di-text-dim); line-height: 1.6; }

/* Services */
.di-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}
.di-service-card {
  background: var(--di-surface);
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-md);
  padding: 32px;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative; overflow: hidden;
}
.di-service-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px; background: linear-gradient(90deg, transparent, var(--di-cyan), transparent);
  opacity: 0; transition: opacity 0.3s ease;
}
.di-service-card:hover {
  background: var(--di-surface-hover);
  border-color: var(--di-border-strong);
  transform: translateY(-4px);
}
.di-service-card:hover::before { opacity: 1; }
.di-service-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 14px; }
.di-service-tag {
  font-family: var(--di-mono); font-size: 13px;
  color: var(--di-cyan); letter-spacing: 0.04em;
}
.di-service-head h3 {
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.02em;
}
.di-service-desc { font-size: 15px; color: var(--di-text-dim); line-height: 1.6; margin-bottom: 20px; }
.di-service-bullets { display: flex; flex-direction: column; gap: 8px; }
.di-service-bullets li {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: var(--di-text-dim);
  font-family: var(--di-mono);
}
.di-bullet-dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--di-cyan);
  box-shadow: 0 0 8px var(--di-cyan);
}

/* Process */
.di-process { position: relative; display: flex; flex-direction: column; gap: 24px; max-width: 900px; margin: 0 auto; }
.di-process-line {
  position: absolute; left: 30px; top: 30px; bottom: 30px; width: 1px;
  background: linear-gradient(180deg, var(--di-violet), var(--di-cyan), transparent);
  opacity: 0.4;
}
.di-process-item { display: flex; gap: 24px; position: relative; align-items: flex-start; }
.di-process-marker {
  flex-shrink: 0; width: 60px; height: 60px; border-radius: 50%;
  background: var(--di-bg-raised);
  border: 1px solid var(--di-border-strong);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--di-mono); font-size: 14px;
  color: var(--di-cyan); position: relative; z-index: 1;
  box-shadow: 0 0 0 6px var(--di-bg);
}
.di-process-body {
  flex: 1;
  padding: 20px 28px;
  background: var(--di-surface);
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-md);
  transition: all 0.3s ease;
}
.di-process-item:hover .di-process-body {
  background: var(--di-surface-hover);
  border-color: var(--di-border-strong);
}
.di-process-body h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 6px; }
.di-process-body p { font-size: 15px; color: var(--di-text-dim); margin-bottom: 12px; }
.di-process-deliv {
  font-size: 12.5px; color: var(--di-text-muted);
  padding-top: 10px; border-top: 1px dashed var(--di-border);
}
.di-process-deliv .di-mono { color: var(--di-cyan); }

/* Stack */
.di-stack-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px; margin: 0 auto;
}
.di-stack-col {
  background: var(--di-surface);
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-md);
  padding: 24px;
}
.di-stack-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--di-text-muted);
  text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 1px solid var(--di-border);
}
.di-stack-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--di-grad); box-shadow: 0 0 8px var(--di-cyan);
}
.di-stack-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.di-chip {
  padding: 8px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--di-border);
  border-radius: 100px;
  font-family: var(--di-mono); font-size: 13px;
  color: var(--di-text-dim);
  transition: all 0.2s ease;
}
.di-chip:hover {
  background: var(--di-surface-hover);
  border-color: var(--di-border-strong);
  color: var(--di-text);
}

/* FAQ */
.di-faq { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.di-faq-item {
  display: block; width: 100%; text-align: left;
  background: var(--di-surface);
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-md);
  padding: 22px 26px;
  transition: all 0.25s ease;
  overflow: hidden;
}
.di-faq-item:hover { background: var(--di-surface-hover); border-color: var(--di-border-strong); }
.di-faq-q {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; font-size: 16px; font-weight: 500; color: var(--di-text);
}
.di-faq-icon {
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--di-surface); border: 1px solid var(--di-border);
  color: var(--di-cyan); flex-shrink: 0;
  transition: transform 0.3s ease;
}
.di-faq-item.open .di-faq-icon { transform: rotate(45deg); }
.di-faq-a {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
  font-size: 15px; color: var(--di-text-dim); line-height: 1.7;
}
.di-faq-item.open .di-faq-a { max-height: 300px; opacity: 1; padding-top: 14px; }

/* Contact */
.di-section-contact { padding: 60px 0 120px; }
.di-contact-card {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(34, 211, 238, 0.05));
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-lg);
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  position: relative; overflow: hidden;
}
.di-contact-card::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent 60%);
  pointer-events: none;
}
.di-contact-left .di-eyebrow { margin-bottom: 16px; }
.di-contact-left h2 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.1; margin-bottom: 20px;
}
.di-contact-left p { color: var(--di-text-dim); font-size: 16px; line-height: 1.6; max-width: 380px; margin-bottom: 28px; }
.di-contact-meta { display: flex; flex-direction: column; gap: 14px; }
.di-contact-meta > div { display: flex; flex-direction: column; gap: 4px; }
.di-contact-meta-label {
  font-size: 11px; color: var(--di-text-muted);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.di-contact-meta span:not(.di-mono):not(.di-contact-meta-label) {
  font-size: 14.5px; color: var(--di-text);
}
.di-contact-right { display: flex; flex-direction: column; gap: 12px; position: relative; }
.di-contact-link {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--di-border);
  border-radius: var(--di-r-md);
  transition: all 0.25s ease;
}
.di-contact-link:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--di-border-strong);
  transform: translateX(4px);
}
.di-contact-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  color: var(--di-text);
}
.di-contact-icon svg { width: 20px; height: 20px; }
.di-contact-icon.whatsapp { background: linear-gradient(135deg, #25d366, #128c7e); color: #fff; }
.di-contact-icon.instagram { background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); color: #fff; }
.di-contact-label { font-family: var(--di-mono); font-size: 12px; color: var(--di-text-muted); margin-bottom: 2px; }
.di-contact-value { font-size: 15.5px; font-weight: 500; color: var(--di-text); }
.di-contact-arrow { width: 18px; height: 18px; margin-left: auto; color: var(--di-text-muted); flex-shrink: 0; }
.di-contact-link:hover .di-contact-arrow { color: var(--di-cyan); }

/* Footer */
.di-footer { padding: 40px 0; border-top: 1px solid var(--di-border); background: var(--di-bg-soft); }
.di-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.di-footer-brand { display: flex; flex-direction: column; gap: 6px; }
.di-footer-brand p { font-size: 13px; color: var(--di-text-muted); }
.di-footer-link { color: var(--di-text-dim); transition: color 0.2s ease; }
.di-footer-link:hover { color: var(--di-text); }
.di-footer-meta { display: flex; gap: 10px; font-size: 13px; color: var(--di-text-muted); }
.di-footer-sep { opacity: 0.4; }

/* Reveal */
.di-reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.22,1,0.36,1), transform 0.7s cubic-bezier(0.22,1,0.36,1); }
.di-visible { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 860px) {
  .di-nav-links { display: none; }
  .di-nav-cta { display: none; }
  .di-burger { display: block; }
  .di-mobile-menu { display: flex; }
  .di-hero { padding: 48px 0 40px; }
  .di-section { padding: 70px 0; }
  .di-hero-stats { grid-template-columns: 1fr; gap: 16px; margin-bottom: 48px; }
  .di-orbit { width: 360px; height: 360px; }
  .di-orbit-ring-3 { width: 340px; height: 340px; }
  .di-orbit-ring-2 { width: 240px; height: 240px; }
  .di-orbit-ring-1 { width: 150px; height: 150px; }
  .di-orbit-chip { transform: translate(-50%, -50%) rotate(var(--angle)) translateX(150px) rotate(calc(-1 * var(--angle))); font-size: 11px; padding: 6px 10px; }
  .di-contact-card { grid-template-columns: 1fr; padding: 36px 28px; gap: 32px; }
  .di-footer-inner { flex-direction: column; text-align: center; }
  .di-process-line { display: none; }
}
@media (max-width: 640px) {
  .di-stack-grid { grid-template-columns: 1fr; max-width: 440px; }
}
@media (max-width: 480px) {
  .di-btn { padding: 12px 20px; font-size: 14px; }
  .di-hero-ctas { flex-direction: column; width: 100%; }
  .di-hero-ctas .di-btn { width: 100%; justify-content: center; }
  .di-contact-card { padding: 28px 20px; }
  .di-service-card, .di-process-body { padding: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .di-reveal { opacity: 1; transform: none; }
}