/* === Base Reset === */
* {
  box-sizing: border-box;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  background: linear-gradient(180deg, #edebeb 0%, #f0f0f5 100%);
  color: #1f2937;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === Header === */
header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  border-bottom: 1px solid #e5e7eb;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
}

header h1 {
  font-size: 1.7rem;
  font-weight: 600;
  color: #ff0000;
  letter-spacing: -0.5px;
}

#search {
  padding: 6px 10px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 0.85rem;
  outline: none;
  width: 550px;        /* ↓ reduced width */
  height: 50px;        /* ↓ compact height */
  transition: all 0.2s;
}

#search:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.25);
  width: 550px;        /* smooth expand on focus */
}


/* === Tool Cards === */
.tool {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  margin: 1.5rem auto;
  padding: 1.5rem;
  max-width: 720px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tool:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
}

.tool h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 1rem;
  color: #111827;
}

/* === Form Elements === */
input,
select,
textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  outline: none;
  width: 100%;
  margin-bottom: 0.75rem;
  background-color: #fff;
  transition: all 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* === Buttons === */
button {
  background: linear-gradient(90deg, #4f46e5, #6366f1);
  color: white;
  border: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  margin: 4px 4px 8px 0;
}

button:hover {
  background: linear-gradient(90deg, #4338ca, #4f46e5);
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
  background: linear-gradient(90deg, #3730a3, #4f46e5);
}

button:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.4);
}

/* === Results, Labels & Layout === */
label {
  display: block;
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.4rem;
}

.result {
  margin-top: 12px;
  font-weight: 600;
  color: #1e3a8a;
  background: #eef2ff;
  padding: 8px 10px;
  border-radius: 8px;
}

/* === Textarea Special === */
textarea {
  resize: vertical;
  min-height: 80px;
}

/* === Footer === */
footer {
  text-align: center;
  padding: 2rem 1rem;
  border-top: 1px solid #e5e7eb;
  font-size: 0.85rem;
  color: #6b7280;
  margin-top: 3rem;
}

/* === Responsiveness === */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    gap: 0.75rem;
  }
  #search {
    width: 100%;
  }
  .tool {
    margin: 1rem;
    padding: 1.25rem;
  }
  button {
    width: 100%;
  }
}

/* === Theme Toggle === */
#theme-toggle {
  background: none;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

#theme-toggle:hover {
  background: #f3f4f6;
}

.dark-mode body,
body.dark-mode {
  background: linear-gradient(180deg, #0f172a, #1e293b);
  color: #737373;
}

body.dark-mode .tool {
  background: #1e293b;
  border-color: #334155;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

body.dark-mode header {
  background: rgba(15, 23, 42, 0.9);
  border-color: #334155;
}

body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea {
  background: #0f172a;
  color: #737373;
  border-color: #475569;
}

body.dark-mode button {
  background: linear-gradient(90deg, #4338ca, #4f46e5);
}

body.dark-mode .result {
  background: #000000;
  color: #9b9b9b;
}

/* === Force all text red in dark mode === */
body.dark-mode,
body.dark-mode * {
  color: #ff0000 !important;
}

body.dark-mode button {
  background: linear-gradient(90deg, #4338ca, #4f46e5) !important;
  color: #000000 !important;
  border: none !important;
}

body.dark-mode #search {
  color: #ffffff !important;
}