:root {
  --blue: #283875;
  --green: #006600;
  --gold: #f0a500;
  --white: #ffffff;
  --text-color: #333;
  --background-color: #f4f6fc;
  --hero-overlay: rgba(40, 56, 117, 0.6);
  --contact-bg: #f9f9f9;
  --input-bg: #ffffff;
  --input-border: #ccc;
  --footer-bg: #283875;
  --link-hover: var(--gold);
  --signal-bg: #f8f8f8;
  --signal-border: #ccc;
}

/* DARK MODE OVERRIDES */
body.dark-mode {
  --blue: #9cbff8;
  --green: #88cc88;
  --gold: #ffd700;
  --white: #1c1c1c;
  --text-color: #f0f0f0;
  --background-color: #121212;
  --hero-overlay: rgba(0, 0, 0, 0.5);
  --contact-bg: #1e1e1e;
  --input-bg: #2a2a2a;
  --input-border: #444;
  --footer-bg: #1c1c1c;
  --link-hover: var(--gold);
  --signal-bg: #2b2b2b;
  --signal-border: #444;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  background: var(--background-color);
  color: var(--text-color);
  scroll-behavior: smooth;
}

header {
  background-color: var(--blue);
  color: var(--white);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header img {
  height: 50px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav ul li a {
  text-decoration: none;
  color: var(--white);
  font-weight: 600;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: var(--link-hover);
}

.hero {
  background: url('/static/images/background.jpg') center center / cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: 1rem 1rem 2rem;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--hero-overlay);
  z-index: 1;
}

.hero h1,
.hero p {
  position: relative;
  z-index: 2;

}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #eaeaea;

}

.hero p {
  font-size: 1.3rem;
  color: #eaeaea;
}

.contact {
  background-color: var(--contact-bg);
  padding: 3rem 2rem;
  text-align: center;
}

.contact h2 {
  color: var(--blue);
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact input,
.contact textarea {
  width: 100%;
  max-width: 500px;
  padding: 1rem;
  margin: 0.5rem auto;
  display: block;
  border: 1px solid var(--input-border);
  border-radius: 5px;
  font-family: 'Poppins', sans-serif;
  background-color: var(--input-bg);
  color: var(--text-color);
}

.contact button {
  background-color: var(--blue);
  color: var(--white);
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 5px;
  font-weight: 600;
  margin-top: 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

.contact button:hover {
  background-color: var(--green);
}

footer {
  background-color: var(--footer-bg);
  color: var(--white);
  text-align: center;
  padding: 1rem;
}

form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

form label {
  font-weight: bold;
}

/* Only make labels full-width when NOT inside .form-row */
form > label {
  width: 100%;
}


form input,
form select,
form button {
  padding: 5px;
  font-size: 14px;
}

.form-container {
  display: flex;
  justify-content: center;
  width: 100%;
}

#queryForm {
  max-width: 1100px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}



.form-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  min-width: 160px;
}

.form-group label {
  font-weight: bold;
  margin-bottom: 4px;
  white-space: nowrap;
}

.form-group select {
  padding: 5px;
  font-size: 14px;
}


.signal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 10px;
  width: 100%;
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--white);
  border: 1px solid var(--border-color, #ccc);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  overflow-x: auto;
}

.signal-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  background-color: #f8f8f8;
  color: black;
  padding: 0.5rem;
  border-radius: 5px;

}


button {
  background-color: var(--blue);
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
  font-size: 1rem;
}

button:hover {
  background-color: var(--green);
  transform: translateY(-2px);
}

form button {
  margin-top: 1rem;
  margin-right: 0.5rem;
}

select {
  background-color: var(--blue);
  color: white;
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-family: 'Poppins', sans-serif;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

select:hover,
select:focus {
  background-color: var(--green);
  outline: none;
}

.dark-toggle {
  position: fixed;
  bottom: 50px;         /* Distance from bottom */
  right: 20px;          /* Distance from right */
  background-color: var(--blue);
  color: white;
  border: none;
  padding: 8px 10px;
  font-size: 20px;      /* Emoji size */
  border-radius: 50%;
  cursor: pointer;
  z-index: 9999;        /* Stay on top */
  opacity: 0.85;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: background-color 0.3s, transform 0.2s;
}

.dark-toggle:hover {
  background-color: var(--green);
  transform: scale(1.1);
}


.floating-progress-box {
  position: fixed;
  bottom: 2rem; /* 🔽 Move it to the bottom instead of top */
  left: 50%;    /* 🔛 Center horizontally */
  transform: translateX(-50%); /* 🧲 Center align */
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 1.2rem 1.5rem;  /* 🧱 Larger padding */
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  max-width: 400px;       /* ⬅ Make it wider */
  font-size: 1rem;        /* ⬆ Larger text */
}

.floating-progress-box.hidden {
  display: none;
}

.progress-bar-container {
  width: 100%;
  background-color: var(--border-color);
  border-radius: 5px;
  overflow: hidden;
  height: 18px;           /* ⬆ Taller bar */
  margin-top: 10px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--blue);
  transition: width 0.5s ease-in-out;
}

.center-btn-container {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.decode-btn {
  padding: 10px 24px;
  font-size: 1rem;
  min-width: 200px;
  border: none;
  border-radius: 5px;
  background-color: var(--blue);
  color: var(--white);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.decode-btn:hover {
  background-color: #1f2f6d;
}

input[type="file"] {
  display: none;
}

.custom-file-label {
  display: inline-block;
  padding: 10px 16px;
  background-color: var(--blue);
  color: var(--white);
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s ease;
  margin-right: 10px;
}

.custom-file-label:hover {
  background-color: var(--gold);
  color: var(--text-color);
}

.custom-upload-btn {
  padding: 10px 16px;
  background-color: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.custom-upload-btn:hover {
  background-color: var(--green);
}

.custom-file-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

#fileName {
  font-size: 0.9rem;
  color: var(--text-color);
}


/* Responsive layout */
@media (max-width: 768px) {
  .services {
    flex-direction: column;
    align-items: center;
  }

  nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  header {
    flex-direction: column;
    gap: 1rem;
  }
}