/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-body: 'Roboto', system-ui, sans-serif;
}

/* =============================================
   DARK THEME (default — matches space-monitor)
   ============================================= */
:root, [data-theme="dark"] {
  --color-bg:           #141414;
  --color-window:       #1e1e1e;
  --color-surface:      #232323;
  --color-border:       #303030;
  --color-border-hover: #3f3f3f;
  --color-text:         #f0f0f0;
  --color-text-muted:   #ffffff;
  --color-text-faint:   #ffffff;
  --color-accent:       #afafaf;
  --color-accent-hover: #ffffff;
  --color-accent-glow:  rgba(59, 165, 93, 0.18);
  --color-hover-overlay: rgba(255, 255, 255, 0.04);
  --shadow-window: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-avatar: 0 0 0 3px #1e1e1e, 0 0 0 5px #ffffff;
}

/* =============================================
   LIGHT THEME
   ============================================= */
[data-theme="light"] {
  --color-bg:           #f0f0f0;
  --color-window:       #ffffff;
  --color-surface:      #f5f5f5;
  --color-border:       #6d6d6d;
  --color-border-hover: #c8c8c8;
  --color-text:         #1a1a1a;
  --color-text-muted:   #000000;
  --color-text-faint:   #000000;
  --color-accent:       #000000;
  --color-accent-hover: #383838;
  --color-accent-glow:  rgba(42, 141, 71, 0.15);
  --color-hover-overlay: rgba(0, 0, 0, 0.04);
  --shadow-window: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-avatar: 0 0 0 3px #ffffff, 0 0 0 5px #000000;
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
  --color-bg:           #141414;
  --color-window:       #1e1e1e;
  --color-surface:      #232323;
  --color-border:       #303030;
  --color-border-hover: #3f3f3f;
  --color-text:         #f0f0f0;
  --color-text-muted:   #ffffff;
  --color-text-faint:   #ffffff;
  --color-accent:       #afafaf;
  --color-accent-hover: #ffffff;
  --color-accent-glow:  rgba(59, 165, 93, 0.18);
  --color-hover-overlay: rgba(255, 255, 255, 0.04);
  --shadow-window: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-avatar: 0 0 0 3px #1e1e1e, 0 0 0 5px #ffffff;
  }
}

/* =============================================
   BASE RESET
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* =============================================
   STARS CANVAS
   ============================================= */
#stars-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}

#stars-canvas.active {
  opacity: 1;
}

/* When stars are active, body bg becomes black */
body.stars-active {
  background-color: #000 !important;
}

body.stars-active .card-window {
  box-shadow: var(--shadow-window), 0 0 60px rgba(255, 255, 255, 0.04);
}

/* Two independent animations on two separate elements —
   vertical drift on the wrapper, rotation on the card itself.
   Prime-ish durations (7s vs 11s) ensure they never sync up. */
.card-levitate {
  display: contents; /* transparent wrapper — no layout side-effects */
}

body.stars-active .card-levitate {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 440px;
  animation: levitate-y 7s ease-in-out infinite;
}

body.stars-active .card-levitate .card-window {
  animation: levitate-rot 11s ease-in-out infinite;
  transform-origin: center center;
}

@keyframes levitate-y {
  0%   { transform: translateY(0px); }
  50%  { transform: translateY(-14px); }
  100% { transform: translateY(0px); }
}

@keyframes levitate-rot {
  0%   { transform: rotate(0deg); }
  50%  { transform: rotate(1.5deg); }
  100% { transform: rotate(0deg); }
}

/* =============================================
   CONTROLS — theme + stars buttons top-right
   ============================================= */
.controls {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  display: flex;
  gap: var(--space-2);
  z-index: 100;
}

.theme-toggle,
.stars-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}

.theme-toggle:hover,
.stars-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border-hover);
}

/* Active state for stars button */
.stars-toggle.active {
  color: #fffbe6;
  border-color: rgba(255, 230, 100, 0.5);
  background: rgba(255, 220, 60, 0.08);
  box-shadow: 0 0 10px rgba(255, 220, 60, 0.15);
}

/* =============================================
   PAGE LAYOUT
   ============================================= */
.page-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: var(--space-8) var(--space-4);
  position: relative;
  z-index: 1;
}

/* =============================================
   CARD WINDOW — core component (space-monitor style)
   ============================================= */
.card-window {
  width: 100%;
  max-width: 440px;
  background: var(--color-window);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-window);
  overflow: hidden;
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

/* =============================================
   CARD CONTENT
   ============================================= */
.card-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-8) var(--space-8) var(--space-6);
  gap: 0;
}

/* =============================================
   AVATAR
   ============================================= */
.avatar-wrapper {
  position: relative;
  margin-bottom: var(--space-5);
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-full);
  object-fit: cover;
  box-shadow: var(--shadow-avatar);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: block;
}

.avatar-wrapper:hover .avatar {
  transform: scale(1.03);
}

/* =============================================
   NICKNAME
   ============================================= */
.nickname {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.04em;
  text-align: center;
  margin-bottom: var(--space-4);
  line-height: 1.2;
}

/* =============================================
   ABOUT BLOCK
   ============================================= */
.about-block {
  position: relative;
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-6);
}

.about-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--color-accent);
  opacity: 0.35;
  margin-bottom: var(--space-1);
  user-select: none;
}

.about-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  text-wrap: pretty;
  max-width: 100%;
}

/* =============================================
   SECTION LABEL
   ============================================= */
.section-label {
  width: 100%;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  opacity: 0.5;
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  padding-left: 2px;
  user-select: none;
}

/* =============================================
   LINKS LIST
   ============================================= */
.links-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  width: 100%;
}

/* =============================================
   LINK BUTTON — server-entry style from space-monitor
   ============================================= */
.link-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 11px 12px 11px 14px;
  background: transparent;
  border-left: 3px solid var(--color-accent);
  border-bottom: 1px solid var(--color-border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--transition-fast),
    border-left-color var(--transition-fast),
    color var(--transition-fast);
}

.link-btn:last-child {
  border-bottom: none;
}

.link-btn:hover {
  background: var(--color-hover-overlay);
  border-left-color: var(--color-accent-hover);
}

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-md);
  background: var(--color-accent-glow);
  color: var(--color-accent);
  font-size: 0.95rem;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.link-btn:hover .link-icon {
  color: var(--color-accent-hover);
}

.link-label {
  flex: 1;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.link-arrow {
  font-size: 0.7rem;
  color: var(--color-text-faint);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.link-btn:hover .link-arrow {
  color: var(--color-text-muted);
  transform: translate(1px, -1px);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 480px) {
  .card-content {
    padding: var(--space-6) var(--space-5) var(--space-5);
  }

  .card-window {
    max-width: 100%;
  }
}