/* =========================================================
   Krafsys — Design tokens, typography, preloader, theme system
   Tailwind (CDN, utility classes) handles layout/spacing.
   This file carries brand tokens Tailwind's default palette
   doesn't know about, plus the pieces Tailwind can't express:
   fonts, the preloader animation, and light/dark theme vars.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Michroma&family=Space+Grotesk:wght@400;500;600;700&family=DM+Serif+Display&family=IBM+Plex+Mono:wght@400;500;600;700&family=Caveat:wght@400;500;600;700&display=swap');

:root {
  --color-base: #0B1220;
  --color-base-raised: #10192E;
  --color-primary-text: #F8FAFC;
  --color-accent: #00C2FF;
  --color-secondary: #94A3B8;
  --color-technical: #00C2FF;
  --color-border: rgba(148, 163, 184, 0.16);

  --font-display: 'Michroma', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-serif: 'DM Serif Display', serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-hand: 'Caveat', cursive;
}

/* Light theme overrides */
[data-theme="light"] {
  --color-base: #F7FAFC;
  --color-base-raised: #FFFFFF;
  --color-primary-text: #0B1220;
  --color-accent: #0090C4;
  --color-secondary: #4B5A70;
  --color-technical: #0090C4;
  --color-border: rgba(11, 18, 32, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-base);
  color: var(--color-primary-text);
  font-family: var(--font-body);
  transition: background-color .35s ease, color .35s ease;
}

.font-display {
  font-family: var(--font-display);
  letter-spacing: 0.01em;
}

.font-serif {
  font-family: var(--font-serif);
}

.font-mono {
  font-family: var(--font-mono);
}

.font-hand {
  font-family: var(--font-hand);
}

.text-accent {
  color: var(--color-accent);
}

.text-secondary {
  color: var(--color-secondary);
}

.bg-base {
  background-color: var(--color-base);
}

.bg-raised {
  background-color: var(--color-base-raised);
}

.border-krafsys {
  border-color: var(--color-border);
}

.brand-gradient-text {
  background: linear-gradient(120deg, #0B1220 0%, #00C2FF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="light"] .brand-gradient-text {
  background: linear-gradient(120deg, #0090C4 0%, #0B1220 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-gradient-bg {
  background: linear-gradient(135deg, #0B1220 0%, #00C2FF 130%);
}

/* Focus visibility for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------------------------------------------------------
   Preloader — logo centered, 5 tiny squares loading beneath
   --------------------------------------------------------- */
#krafsys-preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  background-color: var(--color-base);
  transition: opacity .5s ease, visibility .5s ease;
  animation: krafsys-preloader-failsafe 0s linear 4s forwards;
}

@keyframes krafsys-preloader-failsafe {
  to {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

#krafsys-preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

#krafsys-preloader .preloader-logo {
  width: 168px;
  height: auto;
  opacity: 0;
  animation: krafsys-fade-in .6s ease forwards;
}

#krafsys-preloader .preloader-squares {
  display: flex;
  gap: 10px;
}

#krafsys-preloader .preloader-squares span {
  width: 9px;
  height: 9px;
  background-color: var(--color-accent);
  display: inline-block;
  animation: krafsys-square-bounce 1.1s ease-in-out infinite;
}

#krafsys-preloader .preloader-squares span:nth-child(1) {
  animation-delay: 0s;
}

#krafsys-preloader .preloader-squares span:nth-child(2) {
  animation-delay: .12s;
}

#krafsys-preloader .preloader-squares span:nth-child(3) {
  animation-delay: .24s;
}

#krafsys-preloader .preloader-squares span:nth-child(4) {
  animation-delay: .36s;
}

#krafsys-preloader .preloader-squares span:nth-child(5) {
  animation-delay: .48s;
}

@keyframes krafsys-square-bounce {

  0%,
  60%,
  100% {
    transform: translateY(0);
    opacity: .45;
  }

  30% {
    transform: translateY(-10px);
    opacity: 1;
  }
}

@keyframes krafsys-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------------------------------------------------------
   Small utility components used across pages
   --------------------------------------------------------- */
.krafsys-card {
  background-color: var(--color-base-raised);
  border: 1px solid var(--color-border);
}

.krafsys-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-border);
  color: var(--color-secondary);
}

.theme-toggle-track {
  width: 46px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-base-raised);
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 2px;
}

.theme-toggle-thumb {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background-color: var(--color-accent);
  transition: transform .25s ease;
}

[data-theme="light"] .theme-toggle-thumb {
  transform: translateX(20px);
}

/* Carousel — native scroll-snap so it works with touch/swipe on mobile,
   not just the prev/next buttons */
.krafsys-carousel-viewport {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.krafsys-carousel-viewport::-webkit-scrollbar {
  display: none;
}

.krafsys-carousel-track {
  display: flex;
}

.krafsys-carousel-track>* {
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

/* Marquee for client logos */
.krafsys-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.krafsys-marquee-track {
  display: flex;
  width: max-content;
  animation: krafsys-marquee 28s linear infinite;
}

@keyframes krafsys-marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

/* FAQ accordion — explicit max-height transition driven by JS
   (scrollHeight), so open and close animate at an identical, linear
   rate. */
.krafsys-faq-trigger {
  cursor: pointer;
}

.krafsys-faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.krafsys-faq-icon {
  transition: transform .3s ease;
}

.krafsys-faq-item.is-open .krafsys-faq-icon {
  transform: rotate(45deg);
}

/* Mobile nav — taken out of document flow so it has zero height while
   closed (fixes the sticky header silently expanding/blurring behind it) */
.krafsys-mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  max-height: 80vh;
  overflow-y: auto;
}

.krafsys-mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}