/* Base CSS Variables */
:root {
  /* Core colors */
  --primary: #8ba890;
  --secondary: #4a4a4a;

  /* Light theme */
  --bg-color: #f0f0f0;
  --phone-bg: #e0e0e0;
  --screen-bg: #b9e88c;
  --text-color: #10390b;
  --button-bg: #2a2a2a;
  --button-color: #cbe2c7;
  --message-bg: #92c57d;
  --border-color: #3a5338;
  --error-color: #ff4444;
  --favorite-color: #ffd700;

  /* Animation speeds */
  --transition-speed: 0.3s;
}

/* Dark theme */
html[data-theme="dark"] {
  --bg-color: #0f1b24;
  --phone-bg: #1f2c3a;
  --screen-bg: #1e2f23;
  --text-color: #d7f0d1;
  --button-bg: #3a3a3a;
  --button-color: #bfe0b9;
  --message-bg: #2a3a2a;
  --border-color: #5a7a5a;
  --error-color: #ff6666;
}

/* Reset and base styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background-color: var(--bg-color);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-color);
  font-family: 'VT323', monospace;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-speed) ease;
}

/* Container styles */
.phone-container {
  background-color: var(--phone-bg);
  border-radius: 20px;
  padding: 20px;
  max-width: 360px;
  width: 100%;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  position: relative;
  transform: translateZ(0);
  will-change: transform;
  transition: transform var(--transition-speed) ease, opacity 0.5s ease;
  opacity: 0;
}
.phone-container.loaded {
  opacity: 1;
}

/* Screen styles */
.screen {
  background-color: var(--screen-bg);
  border: 8px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  position: relative;
  min-height: 480px;
  display: flex; flex-direction: column;
  transition: background-color var(--transition-speed) ease;
  transform: translateZ(0);
}
/* LCD scanlines + glow */
.screen::before {
  content: "";
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0.12),
    rgba(0,0,0,0.12) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  opacity: 0.45;
  mix-blend-mode: multiply;
}
.screen::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 8px 24px rgba(119,201,86,0.25);
  pointer-events: none;
}

/* Status bar */
.status-bar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
  font-size: 18px;
  color: var(--text-color);
  text-shadow: 1px 1px 0 rgba(0,0,0,0.15);
}

/* Controls row */
.controls-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 6px;
}
.select-wrap {
  display: flex; flex-direction: column; gap: 2px;
  font-size: 14px;
}
.select-wrap label { opacity: 0.9; }
.select {
  appearance: none;
  border: 2px solid var(--border-color);
  background: rgba(0,0,0,0.08);
  color: var(--text-color);
  border-radius: 8px;
  padding: 6px 8px;
  font-family: 'VT323', monospace;
  font-size: 16px;
}

/* Source + category row */
.source-indicator {
  text-align: center;
  font-size: 14px;
  opacity: 0.9;
  margin: 6px 0 8px;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.15);
}
.category-row {
  display: flex; flex-wrap: wrap; gap: 6px; justify-content: center;
  margin-bottom: 8px;
}
.chip {
  border: 1px solid var(--border-color);
  background: rgba(0,0,0,0.08);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: filter var(--transition-speed) ease, transform var(--transition-speed) ease;
}
.chip:hover { filter: brightness(1.08); transform: translateY(-1px); }
.chip.active { background: rgba(0,0,0,0.18); }

/* Content area */
.content {
  flex-grow: 1;
  display: flex; flex-direction: column;
  gap: 10px; margin-bottom: 12px;
  min-height: 300px;
}

/* Message cards */
.message {
  background-color: var(--message-bg);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  padding: 14px;
  font-size: 16px;
  color: var(--text-color);
  word-wrap: break-word;
  transition: all var(--transition-speed) ease;
  animation: fadeIn var(--transition-speed) ease-out;
  text-align: center;
  display: flex; align-items: center; justify-content: center;
}
.headline {
  min-height: 72px;
  line-height: 1.35;
}
.haiku {
  white-space: pre-line;
  line-height: 1.6;
  min-height: 110px;
  font-size: 18px;
}

/* Buttons */
.button-container { display: flex; flex-direction: column; gap: 8px; margin-top: auto; padding-top: 10px; }
.main-button, .social-button {
  width: 100%;
  border: none; border-radius: 6px;
  cursor: pointer;
  font-family: 'VT323', monospace;
  background: var(--button-bg);
  color: var(--button-color);
  transition: transform var(--transition-speed) ease, filter var(--transition-speed) ease;
}
.main-button { padding: 10px; font-size: 18px; }
.social-buttons { display: grid; grid-template-columns: repeat(2,1fr); gap: 6px; }
.bottom-buttons { display: flex; flex-direction: column; gap: 6px; width: 100%; margin-top: 4px; padding-top: 8px; border-top: 2px solid var(--border-color); }
.share-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; width: 100%; }
.social-button { padding: 8px; font-size: 15px; display: flex; align-items: center; justify-content: center; gap: 4px; text-decoration: none; white-space: nowrap; }
.social-button.twitter { background-color: #1DA1F2; color: #fff; }
.social-button.facebook { background-color: #4267B2; color: #fff; }
.social-button.patreon { background-color: #FF424D; color: #fff; padding: 8px; font-size: 16px; text-align: center; }

/* Hover/active */
.social-button:hover, .main-button:hover { transform: translateY(-2px); filter: brightness(1.07); }
.social-button:active, .main-button:active { transform: translateY(1px); }

.favorite-button { transition: all var(--transition-speed) ease; }
.favorite-button.active { background-color: var(--favorite-color); color: var(--button-bg); }

/* Modals */
.modal-container {
  display: block; position: fixed; inset: 0;
  background: rgba(0,0,0,0.8);
  z-index: 1000; padding: 20px; overflow-y: auto; backdrop-filter: blur(5px);
}
.modal-content {
  background-color: var(--phone-bg);
  border-radius: 16px;
  padding: 18px;
  max-width: 640px;
  margin: 24px auto;
  animation: slideIn var(--transition-speed) ease-out;
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding-bottom: 10px; border-bottom: 2px solid var(--border-color);
}
.close-button { background: transparent; border: none; color: var(--text-color); font-size: 20px; cursor: pointer; }

.history-item, .favorite-item {
  background-color: var(--message-bg);
  border: 2px solid var(--border-color);
  border-radius: 6px;
  padding: 14px; margin-bottom: 12px;
  animation: fadeIn var(--transition-speed) ease-out;
}
.item-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-size: 14px; opacity: 0.85; }
.item-source { font-weight: bold; }
.item-date { font-style: italic; }
.item-headline { font-size: 15px; margin-bottom: 8px; line-height: 1.3; }
.item-haiku { font-size: 16px; white-space: pre-line; line-height: 1.5; padding: 10px; border-left: 2px solid var(--border-color); }
.item-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }
.item-actions .small-btn {
  border: none; border-radius: 6px; padding: 6px 10px;
  background: var(--button-bg); color: var(--button-color); cursor: pointer;
}

/* Loading skeleton */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.08) 25%, rgba(0,0,0,0.12) 50%, rgba(255,255,255,0.08) 75%);
  background-size: 200% 100%;
  animation: loading 1.4s infinite;
}

/* Typewriter cursor */
.cursor {
  display: inline-block; width: 10px; margin-left: 2px;
  border-left: 2px solid var(--text-color); height: 1.2em;
  animation: blink 1s step-start infinite;
}

/* Notifications */
.notification {
  position: fixed; bottom: 20px; right: 20px;
  padding: 10px 16px; background-color: var(--message-bg);
  color: var(--text-color); border-radius: 6px; font-size: 16px;
  animation: fadeIn var(--transition-speed) ease-out;
  z-index: 2000;
}

/* Errors */
.error-state { color: var(--error-color); border-color: var(--error-color); }
.retry-button { margin-top: 10px; background-color: var(--error-color); color: white; }

/* Focus, scrollbar, selection */
button:focus, a:focus { outline: 2px solid var(--primary); outline-offset: 2px; }
button:focus:not(:focus-visible), a:focus:not(:focus-visible) { outline: none; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--phone-bg); }
::-webkit-scrollbar-thumb { background: var(--button-bg); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-color); }
::selection { background: var(--primary); color: var(--text-color); }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { transform: translateY(-16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes loading { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
@keyframes blink { 50% { opacity: 0; } }

/* Responsive */
@media (max-width: 480px) {
  body { padding: 10px; }
  .phone-container { padding: 12px; }
  .message { font-size: 14px; }
  .haiku { font-size: 16px; }
  .social-button { padding: 8px; font-size: 14px; }
  .main-button { padding: 8px; font-size: 16px; }
  .modal-content { margin: 12px; padding: 14px; }
  .item-haiku { font-size: 14px; }
}

/* Responsive scaling for non-mobile screens */
@media (min-width: 481px) {
  .phone-container {
    transform: scale(0.6) translateZ(0);
  }
}

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

/* Print */
@media print {
  .button-container, .modal-container { display: none !important; }
  .phone-container { box-shadow: none; }
  .screen::before, .screen::after { display: none; }
}