/* =========================================================
   Intorsys Portal — style.css (v2: premium glow & motion)
   ========================================================= */

/* ---------- Design tokenek ---------- */
:root {
  /* mély háttér színek */
  --bg-deep:     #050b1a;
  --bg-mid:      #0e1b3d;
  --bg-bright:   #1e2f5e;

  /* kék paletta (erősebb, telítettebb) */
  --blue-50:  #e0f2fe;
  --blue-100: #bfdbfe;
  --blue-200: #93c5fd;
  --blue-300: #7dd3fc;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1e40af;
  --blue-900: #1e3a8a;
  --blue-950: #0c1d4a;

  /* kártyák */
  --card-bg:        rgba(30, 50, 100, 0.55);
  --card-bg-h:      rgba(45, 75, 150, 0.7);
  --card-border:    rgba(96, 165, 250, 0.35);
  --card-border-h:  rgba(147, 197, 253, 0.95);
  --card-inner-glow:    rgba(59, 130, 246, 0.15);
  --card-inner-glow-h:  rgba(96, 165, 250, 0.35);

  --accent:        #3b82f6;
  --accent-bright: #60a5fa;
  --accent-pale:   #93c5fd;
  --accent-glow:   rgba(96, 165, 250, 0.55);
  --accent-glow-h: rgba(147, 197, 253, 0.8);

  --text-primary:   #ffffff;
  --text-secondary: #94a3b8;
  --text-tertiary:  #64748b;

  /* tipográfia */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --fs-wordmark:      clamp(2.75rem, 6.5vw, 4.75rem);
  --fs-card-title:    clamp(1.15rem, 1.4vw, 1.5rem);
  --fs-card-subtitle: clamp(0.85rem, 1vw, 0.95rem);
  --fs-footer:        0.825rem;

  /* spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-12: 48px;
  --space-16: 64px;

  /* rádiuszok */
  --radius-card: 22px;
  --radius-icon: 18px;
  --radius-sm:   8px;

  /* mozgás */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 200ms;
  --dur:      320ms;
  --dur-slow: 600ms;
}

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

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

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 64px);
  font-family: var(--font-sans);
  color: var(--text-primary);
  background:
    radial-gradient(ellipse 80% 60% at 50% 35%, var(--bg-bright) 0%, var(--bg-mid) 35%, var(--bg-deep) 80%),
    linear-gradient(180deg, var(--bg-deep) 0%, #02050d 100%);
  background-attachment: fixed;
  overflow-x: hidden;
  position: relative;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* touch-barát alapértelmezések mobilon */
  -webkit-tap-highlight-color: transparent;
}

/* minden klikkelhető link/kártya: gyors touch, nincs delay,
   nincs natív "highlight szín" mobilon */
a, button, [role="button"] {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

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

h1, h2, p {
  margin: 0;
}

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

/* ---------- Háttér dekoráció ---------- */
.bg-decor {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-decor__dots {
  position: absolute;
  width: 45vw;
  height: 45vh;
  background-image: radial-gradient(circle, rgba(147, 197, 253, 0.22) 1px, transparent 1.5px);
  background-size: 26px 26px;
}

.bg-decor__dots--top-left {
  top: 0;
  left: 0;
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.95), transparent 65%);
  -webkit-mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.95), transparent 65%);
}

.bg-decor__dots--top-right {
  top: 0;
  right: 0;
  mask-image: linear-gradient(225deg, rgba(0, 0, 0, 0.95), transparent 65%);
  -webkit-mask-image: linear-gradient(225deg, rgba(0, 0, 0, 0.95), transparent 65%);
}

/* particle SVG: a teljes viewport-ra terül */
.bg-decor__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.bg-particle {
  transform-box: fill-box;
  transform-origin: center;
  animation: particlePulse 7s ease-in-out infinite;
}

.bg-particle--1  { animation-delay: 0s;    animation-duration: 6.5s; }
.bg-particle--2  { animation-delay: 1.1s;  animation-duration: 8s; }
.bg-particle--3  { animation-delay: 2.4s;  animation-duration: 9.5s; }
.bg-particle--4  { animation-delay: 0.6s;  animation-duration: 7s; }
.bg-particle--5  { animation-delay: 3.2s;  animation-duration: 10s; }
.bg-particle--6  { animation-delay: 1.8s;  animation-duration: 8.5s; }
.bg-particle--7  { animation-delay: 2.0s;  animation-duration: 6s; }
.bg-particle--8  { animation-delay: 4.0s;  animation-duration: 7.5s; }
.bg-particle--9  { animation-delay: 5.0s;  animation-duration: 9s; }
.bg-particle--10 { animation-delay: 3.6s;  animation-duration: 8.2s; }

@keyframes particlePulse {
  0%, 100% { opacity: 0.15; transform: scale(0.9); }
  50%      { opacity: 0.95; transform: scale(1.6); }
}

/* hullámok */
.bg-decor__waves {
  position: absolute;
  bottom: 0;
  width: 60vw;
  height: 42vh;
  min-height: 220px;
  filter: drop-shadow(0 0 12px rgba(96, 165, 250, 0.4));
}

.bg-decor__waves--left  { left: 0; }
.bg-decor__waves--right { right: 0; }

/* a hullámvonalak lassú drift-je (stroke-dashoffset animáció) */
.wave-line {
  stroke-dasharray: 4 6;
  stroke-dashoffset: 0;
}

.wave-line--1 { animation: waveFlow 28s linear infinite; }
.wave-line--2 { animation: waveFlow 36s linear infinite; animation-delay: -8s; }
.wave-line--3 { animation: waveFlow 32s linear infinite; animation-delay: -4s; }
.wave-line--4 { animation: waveFlow 40s linear infinite; animation-delay: -12s; }

.bg-decor__waves--right .wave-line--1 { animation-direction: reverse; }
.bg-decor__waves--right .wave-line--2 { animation-direction: reverse; }
.bg-decor__waves--right .wave-line--3 { animation-direction: reverse; }
.bg-decor__waves--right .wave-line--4 { animation-direction: reverse; }

@keyframes waveFlow {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -200; }
}

/* csomópontok pulzálása */
.wave-node {
  transform-box: fill-box;
  transform-origin: center;
  filter: drop-shadow(0 0 6px var(--accent-glow));
  animation: nodePulse 4s ease-in-out infinite;
}

.wave-node--a { animation-delay: 0s; }
.wave-node--b { animation-delay: 1s; animation-duration: 5s; }
.wave-node--c { animation-delay: 2.4s; animation-duration: 4.5s; }
.wave-node--d { animation-delay: 1.8s; animation-duration: 5.5s; }

@keyframes nodePulse {
  0%, 100% { opacity: 0.4; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1.4); }
}

/* ---------- Portál layout ---------- */
.portal {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 7vh, 80px);
}

/* ---------- Brand: hivatalos logó kép ---------- */
.portal__header {
  width: 100%;
  display: flex;
  justify-content: center;
}

.brand--official {
  display: block;
  width: 100%;
  max-width: 720px;
  padding: var(--space-2);
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-sm);
  transition: transform var(--dur) var(--ease);
  /* finom kék glow a logó köré — most már transzparens PNG-vel,
     így csak a logó alakzatait emeli, nem négyszöget */
  filter:
    drop-shadow(0 0 24px rgba(59, 130, 246, 0.35))
    drop-shadow(0 6px 22px rgba(0, 0, 0, 0.4));
}

.brand--official:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 8px;
}

.brand__image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 720px;
  margin: 0 auto;
}

/* Akadálymentes, képernyő-olvasónak látható h1, de vizuálisan rejtett */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Cards grid ----------
   Mobile-first; tablet landscape (1024-1279px) MARAD 2x2,
   csak 1280px+ desktop-on válik 4-egy-sorban-ra. */
.cards {
  width: 100%;
  display: grid;
  gap: clamp(14px, 2vw, 24px);
  grid-template-columns: 1fr;
}

/* 768px-tól (tablet portrait + landscape): 2x2 grid */
@media (min-width: 768px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}

/* 1280px-tól (desktop): 4 kártya egy sorban */
@media (min-width: 1280px) {
  .cards { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Kártya ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  padding: clamp(28px, 2.8vw, 38px) clamp(20px, 2vw, 28px) clamp(58px, 5vw, 76px);
  min-height: clamp(240px, 23vw, 310px);
  border-radius: var(--radius-card);
  background: var(--card-bg);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  backdrop-filter: blur(14px) saturate(120%);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  text-decoration: none;
  isolation: isolate;
  overflow: hidden;
  transition:
    transform var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
  /* default state — finom kék inner+outer glow ami "él" */
  box-shadow:
    inset 0 0 0 1px rgba(147, 197, 253, 0.08),
    inset 0 0 28px var(--card-inner-glow),
    0 0 24px rgba(59, 130, 246, 0.15),
    0 10px 30px rgba(0, 0, 0, 0.4);
}

/* belső gradient highlight (top) - statikus, finom világosabb sáv felül */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(147, 197, 253, 0.08) 0%, transparent 35%);
  pointer-events: none;
  z-index: -1;
}

/* hover-ra megjelenő intenzív "powering up" glow réteg */
.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background:
    radial-gradient(circle at 50% 0%, rgba(96, 165, 250, 0.25), transparent 65%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
  pointer-events: none;
  z-index: -1;
}

/* Hover effects CSAK valódi mouse-os eszközökön (asztali) — tableten/mobilon
   nem akarunk sticky hover-state-et tap után */
@media (hover: hover) {
  .card:hover {
    transform: translateY(-5px) scale(1.025);
    background: var(--card-bg-h);
    border-color: var(--card-border-h);
    box-shadow:
      inset 0 0 0 1px rgba(147, 197, 253, 0.4),
      inset 0 0 40px var(--card-inner-glow-h),
      0 0 0 1px var(--card-border-h),
      0 0 48px rgba(96, 165, 250, 0.55),
      0 0 90px rgba(59, 130, 246, 0.35),
      0 24px 60px rgba(0, 0, 0, 0.55);
  }
  .card:hover::after { opacity: 1; }
}

/* Focus-visible mindig (billentyűzet navigáció) */
.card:focus-visible {
  transform: translateY(-5px) scale(1.025);
  background: var(--card-bg-h);
  border-color: var(--card-border-h);
  box-shadow:
    inset 0 0 0 1px rgba(147, 197, 253, 0.4),
    inset 0 0 40px var(--card-inner-glow-h),
    0 0 0 1px var(--card-border-h),
    0 0 48px rgba(96, 165, 250, 0.55),
    0 0 90px rgba(59, 130, 246, 0.35),
    0 24px 60px rgba(0, 0, 0, 0.55);
  outline: 2px solid var(--accent-bright);
  outline-offset: 4px;
}

.card:focus-visible::after { opacity: 1; }

/* Touch feedback: nyomás közben enyhe depress + glow flash */
.card:active {
  transform: translateY(-1px) scale(0.99);
  background: var(--card-bg-h);
  border-color: var(--card-border-h);
  box-shadow:
    inset 0 0 0 1px rgba(147, 197, 253, 0.5),
    inset 0 0 50px var(--card-inner-glow-h),
    0 0 36px rgba(96, 165, 250, 0.55),
    0 6px 18px rgba(0, 0, 0, 0.5);
  transition:
    transform 100ms var(--ease),
    background-color 100ms var(--ease),
    border-color 100ms var(--ease),
    box-shadow 100ms var(--ease);
}

.card:active::after { opacity: 1; }

.card__icon {
  display: grid;
  place-items: center;
  width: clamp(68px, 7.5vw, 92px);
  height: clamp(68px, 7.5vw, 92px);
  filter:
    drop-shadow(0 0 14px rgba(96, 165, 250, 0.65))
    drop-shadow(0 0 32px rgba(59, 130, 246, 0.3));
  transition: filter var(--dur) var(--ease), transform var(--dur) var(--ease);
}

@media (hover: hover) {
  .card:hover .card__icon {
    filter:
      drop-shadow(0 0 22px rgba(147, 197, 253, 0.9))
      drop-shadow(0 0 50px rgba(96, 165, 250, 0.55));
    transform: scale(1.05);
  }
}

.card:focus-visible .card__icon,
.card:active .card__icon {
  filter:
    drop-shadow(0 0 22px rgba(147, 197, 253, 0.9))
    drop-shadow(0 0 50px rgba(96, 165, 250, 0.55));
  transform: scale(1.05);
}

.card__icon svg {
  width: 100%;
  height: 100%;
}

.card__title {
  font-size: var(--fs-card-title);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-top: var(--space-1);
  text-shadow: 0 0 16px rgba(59, 130, 246, 0.2);
}

.card__subtitle {
  font-size: var(--fs-card-subtitle);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.4;
  max-width: 28ch;
}

.card__arrow {
  position: absolute;
  bottom: clamp(20px, 2.5vw, 28px);
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  color: var(--text-tertiary);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

@media (hover: hover) {
  .card:hover .card__arrow {
    color: var(--accent-pale);
    transform: translateX(calc(-50% + 5px));
    filter: drop-shadow(0 0 8px var(--accent-glow));
  }
}

.card:focus-visible .card__arrow,
.card:active .card__arrow {
  color: var(--accent-pale);
  transform: translateX(calc(-50% + 5px));
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.card__arrow svg {
  width: 100%;
  height: 100%;
}

/* ---------- Lábléc ---------- */
.portal__footer {
  width: 100%;
  text-align: center;
  margin-top: clamp(8px, 2vh, 24px);
  font-size: var(--fs-footer);
  color: var(--text-secondary);
  opacity: 0.7;
  letter-spacing: 0.02em;
}

.portal__footer p {
  margin: 0;
}

/* ---------- Belépő animáció ---------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.bg-decor {
  opacity: 0;
  animation: fadeIn 1.6s var(--ease) 0.3s forwards;
}

.brand--official {
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.05s forwards;
}

.card {
  opacity: 0;
  animation: fadeUp 0.65s var(--ease-out) forwards;
}

.card:nth-of-type(1) { animation-delay: 0.22s; }
.card:nth-of-type(2) { animation-delay: 0.33s; }
.card:nth-of-type(3) { animation-delay: 0.44s; }
.card:nth-of-type(4) { animation-delay: 0.55s; }

.portal__footer {
  opacity: 0;
  animation: fadeUp 0.5s var(--ease-out) 0.78s forwards;
}

/* =========================================================
   Reszponzív rétegek (tablet-first, mobile-safe)
   ========================================================= */

/* ---------- Kis mobil (max 480px): a legkompaktabb verzió ---------- */
@media (max-width: 480px) {
  body {
    padding: 14px;
  }
  .portal {
    gap: 26px;
  }
  .brand--official {
    max-width: 280px;
    padding: 0;
  }
  .card {
    padding: 22px 18px 56px;
    min-height: 190px;
    gap: 10px;
    border-radius: 18px;
  }
  .card__icon {
    width: 60px;
    height: 60px;
  }
  .card__title {
    font-size: 1.15rem;
  }
  .card__subtitle {
    font-size: 0.875rem;
    max-width: 32ch;
  }
  .card__arrow {
    width: 24px;
    height: 24px;
    bottom: 18px;
  }
  /* Háttér dekoráció: csendesebbre vesszük */
  .bg-decor__waves { display: none; }
  .bg-decor__dots {
    width: 80vw;
    height: 30vh;
    opacity: 0.6;
  }
  .bg-decor__particles { opacity: 0.4; }
  .portal__footer {
    font-size: 0.75rem;
    margin-top: 8px;
  }
}

/* ---------- Mobil (481-767px) ---------- */
@media (min-width: 481px) and (max-width: 767px) {
  body {
    padding: 20px;
  }
  .portal {
    gap: 32px;
  }
  .brand--official {
    max-width: 340px;
  }
  .card {
    padding: 24px 20px 60px;
    min-height: 200px;
  }
  .card__icon {
    width: 64px;
    height: 64px;
  }
  .card__subtitle {
    max-width: 36ch;
  }
  /* Hullámokat letompítjuk de meghagyjuk */
  .bg-decor__waves { opacity: 0.4; }
}

/* ---------- Tablet portrait (768-1023px) ---------- */
@media (min-width: 768px) and (max-width: 1023px) {
  body {
    padding: 32px;
  }
  .portal {
    gap: 44px;
  }
  .brand--official {
    max-width: 460px;
  }
  .card {
    padding: 28px 22px 64px;
    min-height: 220px;
  }
  .card__icon {
    width: 72px;
    height: 72px;
  }
  .bg-decor__waves { opacity: 0.55; }
}

/* ---------- Tablet landscape (1024-1279px) ---------- */
@media (min-width: 1024px) and (max-width: 1279px) {
  body {
    padding: 40px;
  }
  .portal {
    gap: 56px;
  }
  .brand--official {
    max-width: 540px;
  }
  .card {
    padding: 32px 24px 72px;
    min-height: 260px;
  }
  .card__icon {
    width: 80px;
    height: 80px;
  }
}

/* ---------- Desktop (1280px+): full design ---------- */
@media (min-width: 1280px) {
  .brand--official {
    max-width: 680px;
  }
}

/* ---------- Nagy desktop (1400px+) ---------- */
@media (min-width: 1400px) {
  .portal {
    gap: 88px;
  }
  .brand--official {
    max-width: 760px;
  }
}

/* ---------- Tablet landscape rövid magasságon: kompaktabb függőleges ---------- */
@media (min-width: 768px) and (max-height: 820px) and (orientation: landscape) {
  .portal {
    gap: 36px;
  }
  .brand--official {
    max-width: 420px;
  }
  .card {
    min-height: 200px;
  }
}

/* ---------- Akadálymentesség: mozgáscsökkentés ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation: none !important;
  }

  .bg-decor,
  .brand--official,
  .card,
  .portal__footer {
    opacity: 1 !important;
    transform: none !important;
  }

  .card:hover,
  .card:focus-visible {
    transform: none !important;
  }

  .card:hover .card__icon,
  .card:focus-visible .card__icon {
    transform: none !important;
  }

  .card:hover .card__arrow,
  .card:focus-visible .card__arrow {
    transform: translateX(-50%);
  }

  .bg-particle,
  .wave-line,
  .wave-node {
    animation: none !important;
  }

  .bg-particle { opacity: 0.5; }
  .wave-line   { stroke-dasharray: 0; }
  .wave-node   { opacity: 0.7; }
}

/* ---------- Print ---------- */
@media print {
  body {
    background: white !important;
    color: black !important;
  }
  .bg-decor { display: none; }
  .brand--official {
    filter: none;
  }
  .card {
    border: 1px solid #ccc;
    background: white !important;
    color: black !important;
    box-shadow: none;
  }
  .card::before,
  .card::after { display: none; }
  .card__title { color: black; }
  .card__subtitle { color: #444; }
}