/* ========================================================================== *
   Variables
   ========================================================================== */

:root {
  /* Colors */
  --color-bg: #040712; /* deep sky-night backdrop */
  --color-surface: #0d1324;
  --color-surface-alt: #151c32;
  --color-text: #f5f7ff;
  --color-text-muted: #a9b3d5;

  --color-primary: #1fb6ff; /* sky blue */
  --color-primary-soft: rgba(31, 182, 255, 0.15);
  --color-accent-orange: #ff7a1a; /* bright orange */
  --color-accent-yellow: #ffd93b; /* vibrant yellow */
  --color-accent-green: #3ddc97; /* fresh green */

  --color-success: #3ddc97;
  --color-warning: #ffd93b;
  --color-danger: #ff3366;

  --gray-50: #f8fafc;
  --gray-100: #e2e8f0;
  --gray-200: #cbd5f5;
  --gray-300: #9ca3af;
  --gray-400: #6b7280;
  --gray-500: #4b5563;
  --gray-600: #374151;
  --gray-700: #1f2933;
  --gray-800: #111827;
  --gray-900: #020617;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --font-display: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;

  --font-size-xs: 0.75rem;  /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem;   /* 16px */
  --font-size-md: 1.0625rem;/* 17px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem;  /* 20px */
  --font-size-2xl: 1.5rem;  /* 24px */
  --font-size-3xl: 1.875rem;/* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem;    /* 48px */

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadows (dynamic, vertical-friendly) */
  --shadow-soft: 0 6px 18px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, 0.65);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 200ms cubic-bezier(0.23, 1, 0.32, 1);
  --transition-slow: 320ms cubic-bezier(0.19, 1, 0.22, 1);

  /* Layout */
  --container-max-width: 1120px;
}

@media (min-width: 768px) {
  :root {
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
  }
}

/* ========================================================================== *
   Reset / Normalize
   ========================================================================== */

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

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

h1, h2, h3, h4, h5, h6,
p, figure,
blockquote,
dl, dd {
  margin: 0;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

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

img {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  border: none;
  padding: 0;
  background: none;
}

textarea {
  resize: vertical;
}

:where(table) {
  border-collapse: collapse;
  border-spacing: 0;
}

:where(*)::-moz-focus-inner {
  border: 0;
}

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

/* ========================================================================== *
   Base Styles
   ========================================================================== */

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background: radial-gradient(circle at 0 0, rgba(31, 182, 255, 0.18), transparent 55%),
              radial-gradient(circle at 100% 20%, rgba(255, 122, 26, 0.18), transparent 55%),
              linear-gradient(to bottom, #05081a, #02030a 60%, #05081a 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

main {
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 { font-size: var(--font-size-5xl); margin-bottom: var(--space-4); }

h2 {
  font-size: var(--font-size-4xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: var(--font-size-3xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

h6 {
  font-size: var(--font-size-lg);
  margin-top: var(--space-3);
  margin-bottom: var(--space-1);
}

p {
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}

strong {
  font-weight: 700;
}

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin: var(--space-8) 0;
}

/* Links – arcade highlight */

a {
  color: var(--color-primary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-base), transform var(--transition-fast);
}

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-yellow), var(--color-accent-orange));
  transform-origin: left;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

a:hover {
  color: var(--color-accent-orange);
  transform: translateY(-1px);
}

a:hover::after {
  transform: scaleX(1);
}

a:focus-visible {
  outline: 2px solid var(--color-accent-yellow);
  outline-offset: 3px;
}

/* Lists */

ul, ol {
  padding-left: 1.25rem;
  margin-top: 0;
  margin-bottom: var(--space-3);
}

/* Forms base spacing */

label {
  display: inline-block;
  margin-bottom: 0.35rem;
}

/* ========================================================================== *
   Utilities
   ========================================================================== */

/* Container */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

/* Layout helpers */

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-column {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.flex-wrap {
  flex-wrap: wrap;
}

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-end { justify-content: flex-end; }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Screen reader only */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Vertical motion motif (for hero, timelines, etc.) */

.vertical-glow {
  position: relative;
}

.vertical-glow::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -20%;
  bottom: -20%;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(
    to bottom,
    rgba(31, 182, 255, 0),
    rgba(31, 182, 255, 0.7),
    rgba(255, 122, 26, 0.7),
    rgba(255, 217, 59, 0)
  );
  opacity: 0.4;
  pointer-events: none;
}

/* ========================================================================== *
   Components
   ========================================================================== */

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 0;
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-accent-orange), var(--color-accent-yellow));
  color: #05040a;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  transform: translateY(0);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    filter var(--transition-fast),
    background var(--transition-base);
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.32), transparent 55%);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover {
  transform: translateY(-2px) translateZ(0);
  box-shadow: var(--shadow-md);
  filter: brightness(1.05);
}

.btn:hover::after {
  opacity: 1;
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.btn[disabled],
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), #4fd1ff);
  color: #020617;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* Inputs */

.input,
.select,
.textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(4, 7, 18, 0.9);
  color: var(--color-text);
  box-shadow: 0 0 0 0 rgba(31, 182, 255, 0.4);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-fast),
    transform var(--transition-fast);
}

.input::placeholder,
.textarea::placeholder {
  color: rgba(169, 179, 213, 0.7);
}

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(31, 182, 255, 0.7), 0 12px 30px rgba(0, 0, 0, 0.6);
  transform: translateY(-1px);
}

.input[disabled],
.select[disabled],
.textarea[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Card – for karakterek, kihívás kártyák, achievement-ek */

.card {
  position: relative;
  background: radial-gradient(circle at 0 0, rgba(31, 182, 255, 0.18), transparent 60%),
              radial-gradient(circle at 100% 0, rgba(255, 122, 26, 0.18), transparent 60%),
              var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background-position var(--transition-slow);
  background-size: 140% 140%;
  background-position: 0% 0%;
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 50% 0, rgba(255, 255, 255, 0.08), transparent 55%);
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(31, 182, 255, 0.55);
  background-position: 50% 0;
}

.card:hover::before {
  opacity: 1;
}

.card--highlight {
  border-image: linear-gradient(180deg, var(--color-accent-yellow), var(--color-primary)) 1;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--font-size-xl);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.card-meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
}

/* Focus visible global style for interactive elements */

:where(a, button, input, textarea, select, summary):focus-visible {
  outline: 2px solid var(--color-accent-yellow);
  outline-offset: 3px;
}

/* ========================================================================== *
   Motion-specific helpers (for vertical climbing feel)
   ========================================================================== */

/* Subtle vertical hover float */

.lift-on-hover {
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.lift-on-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Parallax-like section background hint */

.section-vertical {
  position: relative;
  isolation: isolate;
}

.section-vertical::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(
      to top,
      rgba(4, 7, 18, 0.9) 0%,
      rgba(4, 7, 18, 0.4) 40%,
      rgba(4, 7, 18, 0) 100%
    );
  opacity: 0.7;
  pointer-events: none;
  mix-blend-mode: soft-light;
}

.section-vertical > * {
  position: relative;
  z-index: 1;
}