Минималистичная правительственная форма в тонах драгоценных камней

<div class="p-4 sm:p-6 md:p-8 lg:p-12 bg-gray-100 dark:bg-gray-900 min-h-screen flex items-center justify-center font-sans">
  <div class="w-full max-w-2xl bg-white dark:bg-gray-800 shadow-xl rounded-lg overflow-hidden border border-gray-200 dark:border-gray-700">
    <div class="px-6 py-8 md:px-8 bg-gradient-to-r from-emerald-600 to-teal-700 dark:from-emerald-800 dark:to-teal-900 text-white">
      <h2 class="text-2xl sm:text-3xl font-bold mb-2">Submit Your Inquiry</h2>
      <p class="text-sm sm:text-base opacity-90">Please fill out the form below with accurate information. All fields are required unless otherwise noted.</p>
    </div>

    <form class="p-6 md:p-8 space-y-6 text-gray-800 dark:text-gray-200">
      <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
        <div>
          <label for="first_name" class="block text-sm font-medium mb-1">First Name</label>
          <input type="text" id="first_name" name="first_name" placeholder="John" required class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out placeholder-gray-400 dark:placeholder-gray-500">
        </div>
        <div>
          <label for="last_name" class="block text-sm font-medium mb-1">Last Name</label>
          <input type="text" id="last_name" name="last_name" placeholder="Doe" required class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out placeholder-gray-400 dark:placeholder-gray-500">
        </div>
      </div>

      <div>
        <label for="email" class="block text-sm font-medium mb-1">Email Address</label>
        <input type="email" id="email" name="email" placeholder="[email protected]" required class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out placeholder-gray-400 dark:placeholder-gray-500">
      </div>

      <div>
        <label for="phone" class="block text-sm font-medium mb-1">Phone Number (Optional)</label>
        <input type="tel" id="phone" name="phone" placeholder="+1 (555) 123-4567" class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out placeholder-gray-400 dark:placeholder-gray-500">
      </div>

      <div>
        <label for="subject" class="block text-sm font-medium mb-1">Subject of Inquiry</label>
        <select id="subject" name="subject" required class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out">
          <option value="" disabled selected>Select a subject</option>
          <option value="general_inquiry">General Inquiry</option>
          <option value="technical_support">Technical Support</option>
          <option value="feedback">Feedback</option>
          <option value="report_issue">Report an Issue</option>
          <option value="other">Other</option>
        </select>
      </div>

      <div>
        <label for="message" class="block text-sm font-medium mb-1">Your Message</label>
        <textarea id="message" name="message" rows="5" placeholder="Provide details about your inquiry..." required class="w-full px-4 py-2 rounded-md border border-gray-300 dark:border-gray-600 bg-gray-50 dark:bg-gray-700 text-gray-900 dark:text-gray-50 focus:outline-none focus:ring-2 focus:ring-emerald-500 dark:focus:ring-emerald-400 transition duration-200 ease-in-out placeholder-gray-400 dark:placeholder-gray-500 resize-y"></textarea>
      </div>

      <div class="flex items-center space-x-2">
        <input type="checkbox" id="terms" name="terms" required class="h-5 w-5 text-emerald-600 dark:text-emerald-500 focus:ring-emerald-500 dark:focus:ring-emerald-400 border-gray-300 dark:border-gray-600 rounded">
        <label for="terms" class="text-sm">I agree to the <a href="#" class="text-emerald-600 dark:text-emerald-500 hover:underline">terms and conditions</a>.</label>
      </div>

      <div class="flex justify-end">
        <button type="submit" class="px-8 py-3 bg-emerald-600 hover:bg-emerald-700 dark:bg-emerald-700 dark:hover:bg-emerald-800 text-white font-semibold rounded-md shadow-lg transition duration-300 ease-in-out transform hover:scale-105 focus:outline-none focus:ring-4 focus:ring-emerald-500 dark:focus:ring-emerald-600 focus:ring-opacity-50">
          Submit Inquiry
        </button>
      </div>
    </form>
  </div>
</div>