/* Basic reset & base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f4f9;
  color: #222;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.logo {
  width: 46px;
  height: auto;
  position: absolute;
  top: 10px;
  right: 20px;
}


/* Nav bar */
.navbar {
  background: #1f2937;
  color: white;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
}

.nav-btn {
  background: transparent;
  border: none;
  color: white;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 5px;
  transition: background 0.3s ease;
}

.nav-btn:hover,
.nav-btn.active {
  background: #3b82f6;
}

/* Container for main content */
.container {
  max-width: 700px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* Headings */
h1,
h2,
h3 {
  margin-bottom: 1rem;
}

/* Textarea */
textarea#userInput {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  font-size: 1rem;
  padding: 12px;
  border-radius: 8px;
  border: 2px solid #ddd;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

textarea#userInput:focus {
  outline: none;
  border-color: #3b82f6;
  background-color: #fff;
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 1rem;
  background-color: #3b82f6;
  color: white;
  transition: background-color 0.3s ease;
  user-select: none;
}

button:hover:not(:disabled) {
  background-color: #2563eb;
}

button:disabled {
  background-color: #a5b4fc;
  cursor: not-allowed;
}

#generateBtn,
#clearBtn {
  margin-top: 1rem;
  margin-right: 10px;
}

#micBtn {
  margin-top: 1rem;
  background-color: #ef4444;
}

#micBtn:hover {
  background-color: #dc2626;
}

/* Loading text */
.loading {
  font-weight: 600;
  font-size: 1.1rem;
  margin-top: 1rem;
  color: #2563eb;
  display: none;
}

/* Output container */
.output {
  margin-top: 1rem;
  padding: 15px;
  background: white;
  border-radius: 8px;
  border: 2px solid #ddd;
  max-height: 350px;
  overflow-y: auto;
  font-size: 1rem;
  white-space: pre-wrap;
}

/* History */
.history {
  background: #fff;
  padding: 1rem;
  border-radius: 8px;
  max-height: 500px;
  overflow-y: auto;
  border: 2px solid #ddd;
}

.history-item {
  margin-bottom: 1rem;
}

.history-item small {
  color: #555;
  display: block;
  margin-bottom: 0.3rem;
}

.history-content {
  background: #f9fafb;
  border: 1px solid #ccc;
  padding: 0.8rem;
  border-radius: 6px;
  white-space: pre-wrap;
}

/* Hidden helper */
.hidden {
  display: none;
}

/* Option selector */
#optionSelector {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 1.1rem;
}

#optionSelector button {
  width: 32px;
  height: 32px;
  font-size: 1.3rem;
  padding: 0;
  line-height: 1;
  margin: 0 4px;
  user-select: none;
}

/* Theme container */
.theme-container {
  max-width: 500px;
  margin: 2rem auto;
  text-align: center;
}

/* Button primary for theme */
.btn-primary {
  background-color: #2563eb;
  padding: 10px 20px;
  font-weight: 600;
  border-radius: 8px;
  color: white;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-primary:hover {
  background-color: #1d4ed8;
}

/* Scrollbar for output and history */
.output::-webkit-scrollbar,
.history::-webkit-scrollbar {
  width: 8px;
}

.output::-webkit-scrollbar-thumb,
.history::-webkit-scrollbar-thumb {
  background-color: #3b82f6;
  border-radius: 4px;
}

/* DARK THEME */
body.dark-theme {
  background-color: #121212;
  color: #ddd;
}

body.dark-theme textarea#userInput {
  background-color: #1f2937;
  border-color: #4b5563;
  color: #ddd;
}

body.dark-theme textarea#userInput:focus {
  border-color: #3b82f6;
}

body.dark-theme .navbar {
  background: #1e293b;
}

body.dark-theme .nav-btn {
  color: #ddd;
}

body.dark-theme .nav-btn:hover,
body.dark-theme .nav-btn.active {
  background-color: #2563eb;
}

body.dark-theme button {
  background-color: #2563eb;
  color: #fff;
}

body.dark-theme button:hover:not(:disabled) {
  background-color: #1d4ed8;
}

body.dark-theme .loading {
  color: #60a5fa;
}

body.dark-theme .output {
  background-color: #1f2937;
  border-color: #374151;
  color: #ddd;
}

body.dark-theme .history {
  background-color: #1f2937;
  border-color: #374151;
  color: #ddd;
}

body.dark-theme .history-content {
  background-color: #111827;
  border-color: #4b5563;
}

/* LIGHT THEME */
body.light-theme {
  background-color: #f4f4f9;
  color: #222;
}

/* 7 APP THEMES */
/* Theme 1 - Cool Blue */
body.theme-1 {
  --bg-color: #e0f2fe;
  --text-color: #0369a1;
  --btn-bg: #0284c7;
  --btn-hover: #0369a1;
}

body.theme-1 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-1 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-1 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 2 - Warm Sunset */
body.theme-2 {
  --bg-color: #fff1e6;
  --text-color: #c2410c;
  --btn-bg: #ea580c;
  --btn-hover: #c2410c;
}

body.theme-2 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-2 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-2 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 3 - Forest Green */
body.theme-3 {
  --bg-color: #dcfce7;
  --text-color: #166534;
  --btn-bg: #22c55e;
  --btn-hover: #166534;
}

body.theme-3 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-3 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-3 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 4 - Lavender Purple */
body.theme-4 {
  --bg-color: #ede9fe;
  --text-color: #7c3aed;
  --btn-bg: #8b5cf6;
  --btn-hover: #7c3aed;
}

body.theme-4 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-4 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-4 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 5 - Rose Pink */
body.theme-5 {
  --bg-color: #fff1f2;
  --text-color: #be185d;
  --btn-bg: #db2777;
  --btn-hover: #be185d;
}

body.theme-5 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-5 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-5 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 6 - Midnight */
body.theme-6 {
  --bg-color: #0f172a;
  --text-color: #e0e7ff;
  --btn-bg: #6366f1;
  --btn-hover: #4f46e5;
}

body.theme-6 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-6 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-6 button:hover {
  background-color: var(--btn-hover);
}

/* Theme 7 - Sunny Yellow */
body.theme-7 {
  --bg-color: #fef3c7;
  --text-color: #a16207;
  --btn-bg: #ca8a04;
  --btn-hover: #a16207;
}

body.theme-7 {
  background-color: var(--bg-color);
  color: var(--text-color);
}

body.theme-7 button {
  background-color: var(--btn-bg);
  color: white;
}

body.theme-7 button:hover {
  background-color: var(--btn-hover);
}

/* Responsive tweaks */
@media (max-width: 600px) {
  .container {
    padding: 0 1rem;
  }

  textarea#userInput {
    min-height: 100px;
  }

  button {
    width: 100%;
    margin-top: 10px;
  }

  #optionSelector {
    flex-wrap: wrap;
    justify-content: center;
  }
}