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

:root {
  /* Color Palette - Monument Valley 2 inspired pastels */
  --color-background: #0f1420; /* deep slate backdrop */
  --color-surface: #151a28; /* elevated surfaces */
  --color-surface-soft: #1c2233;

  --color-text: #f7f5fa;
  --color-text-muted: #b8c0d5;
  --color-border-subtle: rgba(255, 255, 255, 0.08);

  --color-primary: #87c8c5; /* misty teal */
  --color-primary-soft: rgba(135, 200, 197, 0.12);

  --color-success: #7ac29a;
  --color-warning: #f2c078; /* warm sandstone */
  --color-danger: #f28b82; /* muted coral red */

  --color-accent-rose: #f0b6c3; /* pale rose */
  --color-accent-coral: #f49b8f; /* muted coral */
  --color-accent-sandstone: #e6b27a;

  --color-gray-50: #f8fafc;
  --color-gray-100: #edf0f7;
  --color-gray-200: #d7dce8;
  --color-gray-300: #b8c0d5;
  --color-gray-400: #8a93aa;
  --color-gray-500: #6b748b;
  --color-gray-600: #4c546b;
  --color-gray-700: #363c4f;
  --color-gray-800: #1f2433;
  --color-gray-900: #0f1420;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Noto Sans", sans-serif;
  --font-display: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1.0625rem; /* 17px - a bit more readable for Polish */
  --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: 1.25;
  --line-height-default: 1.6;
  --line-height-relaxed: 1.8;

  /* Spacing Scale (px values expressed in rem assuming 16px root) */
  --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: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* Shadows - soft gallery lighting */
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.25);
  --shadow-subtle: 0 8px 24px rgba(0, 0, 0, 0.18);
  --shadow-elevated: 0 26px 80px rgba(0, 0, 0, 0.5);
  --shadow-focus: 0 0 0 2px rgba(15, 20, 32, 0.8), 0 0 0 4px rgba(135, 200, 197, 0.7);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease;

  /* Layout */
  --container-max-width: 1120px;
  --container-padding-x: 1.5rem;
}

@media (min-width: 768px) {
  :root {
    --container-padding-x: 2rem;
  }
}

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

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

html,
body {
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
}

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

img {
  height: auto;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

button:disabled,
[disabled] {
  cursor: not-allowed;
}

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

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

/* Improve text rendering */
body,
input,
button,
textarea,
select {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-default);
  background: radial-gradient(circle at top, #1c2233 0, #0f1420 55%, #05070c 100%);
  color: var(--color-text);
}

main {
  display: block;
}

/* Headings - minimal, gallery-like rhythm */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.4rem, 4vw, var(--font-size-5xl));
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.9rem, 2.7vw, var(--font-size-4xl));
  line-height: 1.15;
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: clamp(1.5rem, 2.1vw, var(--font-size-3xl));
  line-height: 1.2;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-2xl);
  line-height: 1.3;
  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-1);
}

h6 {
  font-size: var(--font-size-lg);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  margin-bottom: var(--space-1);
}

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

p + p {
  margin-top: var(--space-1);
}

small {
  font-size: var(--font-size-sm);
}

strong {
  font-weight: 600;
}

/* Links - subtle underlines on hover for a calm look */

a {
  position: relative;
  transition: color var(--transition-normal);
}

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15em;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-rose));
  transition: width var(--transition-normal);
}

a:hover::after,
a:focus-visible::after {
  width: 100%;
}

/* Lists for content sections */

ul,
ol {
  margin-left: 1.3rem;
  margin-bottom: var(--space-3);
}

li + li {
  margin-top: 0.35em;
}

/* ========================================================================== 
   Accessibility & Motion
   ========================================================================== */

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

/* Layout Container */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

.section {
  padding-block: var(--space-12);
}

.section--condensed {
  padding-block: var(--space-8);
}

/* Flex utilities */

.flex {
  display: flex;
}

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

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

.gap-xs {
  gap: var(--space-2);
}

.gap-sm {
  gap: var(--space-3);
}

.gap-md {
  gap: var(--space-4);
}

.gap-lg {
  gap: var(--space-6);
}

/* Grid utilities */

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

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

/* Alignment & text helpers */

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

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

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

/* Spacing helpers (margin-top only for vertical rhythm) */

.mt-0 { margin-top: 0 !important; }
.mt-xs { margin-top: var(--space-2) !important; }
.mt-sm { margin-top: var(--space-3) !important; }
.mt-md { margin-top: var(--space-4) !important; }
.mt-lg { margin-top: var(--space-6) !important; }
.mt-xl { margin-top: var(--space-8) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-xs { margin-bottom: var(--space-2) !important; }
.mb-sm { margin-bottom: var(--space-3) !important; }
.mb-md { margin-bottom: var(--space-4) !important; }
.mb-lg { margin-bottom: var(--space-6) !important; }
.mb-xl { margin-bottom: var(--space-8) !important; }

/* Visually hidden but accessible */

.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;
}

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

/* Buttons - calm, pill-shaped controls */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: radial-gradient(circle at top left, rgba(240, 182, 195, 0.22), rgba(135, 200, 197, 0.18));
  color: var(--color-text);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  box-shadow: var(--shadow-subtle);
  transition:
    background var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast),
    border-color var(--transition-normal),
    color var(--transition-normal);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(135, 200, 197, 0.7);
}

.button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-subtle);
}

.button:focus-visible {
  box-shadow: var(--shadow-focus);
}

.button--ghost {
  background: rgba(12, 16, 26, 0.7);
  border-color: rgba(255, 255, 255, 0.12);
}

.button--ghost:hover {
  background: rgba(21, 26, 40, 0.95);
}

.button--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-rose));
  border-color: rgba(255, 255, 255, 0.16);
}

.button--primary:hover {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-coral));
}

.button--danger {
  background: linear-gradient(135deg, var(--color-danger), var(--color-accent-rose));
}

.button--sm {
  padding: 0.45rem 1rem;
  font-size: var(--font-size-xs);
}

.button--lg {
  padding: 0.85rem 1.8rem;
  font-size: var(--font-size-base);
}

.button:disabled,
.button[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
  box-shadow: none;
}

/* Inputs & form fields */

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background: rgba(7, 10, 18, 0.9);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background var(--transition-normal);
}

.input::placeholder,
.textarea::placeholder {
  color: rgba(184, 192, 213, 0.6);
}

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: rgba(135, 200, 197, 0.85);
  box-shadow: 0 0 0 1px rgba(135, 200, 197, 0.7);
  background: rgba(10, 15, 26, 0.95);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.input--invalid,
.textarea--invalid,
.select--invalid {
  border-color: rgba(242, 139, 130, 0.9);
}

.field__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.field__error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Card - core surface for sections (overview, gallery, stories, tips) */

.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background:
    radial-gradient(circle at top, rgba(135, 200, 197, 0.12), transparent 55%),
    radial-gradient(circle at bottom right, rgba(240, 182, 195, 0.08), transparent 55%),
    var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.card--soft {
  background: rgba(15, 20, 32, 0.85);
  box-shadow: var(--shadow-subtle);
}

.card--outline {
  background: rgba(10, 13, 22, 0.8);
  box-shadow: none;
}

.card__header {
  margin-bottom: var(--space-4);
}

.card__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-1);
}

.card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Media frame for screenshots / puzzle gallery items */

.media-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: radial-gradient(circle at top, rgba(135, 200, 197, 0.2), rgba(9, 12, 21, 1));
}

.media-frame img,
.media-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.12), transparent 60%);
  mix-blend-mode: soft-light;
  pointer-events: none;
}

/* Tag / pill for categories (e.g., tips, characters, puzzles) */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  background: rgba(10, 13, 22, 0.8);
}

.tag--primary {
  border-color: rgba(135, 200, 197, 0.7);
  color: var(--color-primary);
}

.tag--warm {
  border-color: rgba(242, 192, 120, 0.7);
  color: var(--color-warning);
}

/* Subtle divider for sections */

.divider {
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-block: var(--space-6);
}

/* Ambient gradient halo, useful behind hero media */

.halo {
  position: absolute;
  inset: -30%;
  background:
    radial-gradient(circle at 20% 0%, rgba(135, 200, 197, 0.55), transparent 60%),
    radial-gradient(circle at 80% 100%, rgba(240, 182, 195, 0.5), transparent 60%),
    radial-gradient(circle at 0% 100%, rgba(242, 155, 143, 0.35), transparent 60%);
  opacity: 0.55;
  filter: blur(40px);
  pointer-events: none;
  z-index: -1;
}

/* End of base.css */