@import url('https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700&display=swap');
:root {
  --bg: linear-gradient(to bottom, #0f2027, #203a43, #2c5364);
  --btn-bg: #1de9b6;
  --btn-hover: #00bfa5;
  --text: #e0e7eb;
  --text-muted: #a0b1bb;
  --radius: 16px;
  --blur: 10px;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  --fade-duration: 0.5s;
}

* {
  box-sizing: border-box;
  font-family: 'Merriweather', serif;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  animation: fadeIn var(--fade-duration) ease-out;
}

.container {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 40px 32px;
  max-width: 700px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--blur));
  animation: fadeIn var(--fade-duration) ease-out;
}

h2 {
  margin-bottom: 24px;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--btn-bg);
}

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

.custom-file-upload,
.send-image {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  background: transparent;
  color: var(--btn-bg);
  border: 3px dashed var(--btn-bg);
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.custom-file-upload:hover {
  background: var(--btn-bg);
  color: white;
}

.send-image {
  background: var(--btn-bg);
  color: #ffffff;
  transition: transform 0.3s ease, background 0.3s ease;
}

.send-image:hover {
  background: transparent;
  color: var(--btn-bg);
}

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

#status,
.file-message {
  margin-top: 18px;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 28px 20px;
  }

  h2 {
    font-size: 1.5rem;
  }

  .custom-file-upload,
  button {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
}