/* ==========================================================================
   CINTEXA BASE
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  background-image: var(--grad-mesh);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, video, canvas { display: block; max-width: 100%; }

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

ul, ol { padding: 0; margin: 0; list-style: none; }

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  margin: 0;
}

p { margin: 0; }

code, pre, kbd {
  font-family: var(--font-mono);
}

/* ---- Layout helpers ---- */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--content-pad);
  padding-right: var(--content-pad);
}

.section {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
  position: relative;
}

@media (max-width: 720px) {
  .section { padding-top: var(--space-8); padding-bottom: var(--space-8); }
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-7);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.section-head h2 {
  font-size: var(--fs-display-lg);
  margin-bottom: var(--space-4);
}

.section-head p {
  color: var(--text-secondary);
  font-size: var(--fs-body-lg);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 9999;
  background: var(--surface);
  color: var(--text-primary);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass-strong);
  transition: top var(--dur-base) var(--ease-out);
}

.skip-link:focus { top: var(--space-4); }

/* ---- Glass card primitive ---- */
.glass {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-body-sm);
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
  border: 1px solid transparent;
}

.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary {
  background: var(--grad-primary);
  color: #04101F;
  box-shadow: var(--shadow-glow-blue);
}
.btn-primary:hover { box-shadow: 0 0 56px rgba(25, 211, 255, 0.4); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-glass-strong);
}
.btn-ghost:hover { border-color: var(--cyan); background: rgba(25, 211, 255, 0.06); }

.btn-sm { padding: 0.6rem 1.1rem; font-size: var(--fs-caption); }

.btn-block { width: 100%; }

.btn:disabled,
.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* ---- Pills / tags ---- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-glass-strong);
  color: var(--text-secondary);
}

/* ---- Gradient text ---- */
.text-grad {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Scroll reveal ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* If JS never runs (blocked, error, disabled), content must not stay hidden.
   index.html sets class="no-js" on <html> by default and a tiny inline script
   swaps it to "js" immediately; this rule only matches when that swap never happened. */
html.no-js [data-reveal] {
  opacity: 1;
  transform: none;
}
/* ---- Grid helpers ---- */
.grid {
  display: grid;
  gap: var(--space-6);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

::selection {
  background: var(--purple);
  color: white;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--surface-raised);
  border-radius: var(--radius-pill);
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--blue); }