/* ---------- VARIABLES ---------- */
:root {
  --primary: #ffffff;
  --secondary: rgba(255, 255, 255, 0.85);
  --placeholder: rgba(255, 255, 255, 0.7);
  --bg-gradient: linear-gradient(135deg, #667eea, #764ba2);
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.2);
}

/* ---------- RESET & UTILITIES ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Poppins", sans-serif;
  background: var(--bg-gradient);
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
}

ol,
ul {
  list-style: none;
}

img,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

.container {
  margin: 0 auto;
  width: 90%;
  max-width: 450px;
}

.grid {
  display: grid;
}

.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.justify-space-between {
  justify-content: space-between;
}

.align-items-center {
  align-items: center;
}

.text-center {
  text-align: center;
}

/* ---------- COMPONENTS ---------- */

/* Remove spinner arrows in Chrome, Safari, Edge, and Opera */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Remove spinner arrows in Firefox */
input[type="number"] {
  -moz-appearance: textfield;
}

body {
  padding: 20px 0;
  font-family: "Poppins", sans-serif;
  min-height: 100vh;
  background: var(--bg-gradient);
}

.container {
  margin: 140px auto;
  padding: 40px 60px;
  width: 80%;
  max-width: 600px;
  background: var(--glass-bg);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
}

h1 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 15px;
}

p {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--secondary);
}

main p {
  margin-bottom: 30px;
}

.input-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* 2 equal columns for inputs */
  gap: 12px; /* grid er gap */
  margin-top: 10px;
}

input {
  /* flex: 1; */
  padding: 10px 12px;
  font-size: 1rem;
  border-radius: 10px;
  border: none;
  outline: none;
  text-align: center;
}

input[type="number"] {
  background: rgba(255, 255, 255, 0.2);
  color: var(--primary);
}

input[type="text"] {
  background: rgba(255, 255, 255, 0.25);
  color: var(--primary);
}

input::placeholder {
  color: var(--placeholder);
}

a {
  text-decoration: none !important;
}

/** FOOTER START */
.footer {
  margin: 0 auto;
  max-width: 400px;
  padding: 15px 20px;
  font-size: 0.9rem;
  background: var(--glass-bg);
  color: var(--secondary);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.footer a {
  font-weight: 700;
  color: #0a0826;
  text-decoration: underline;
  transition: color 0.33s linear;
}

.footer a:hover {
  color: #ddd;
}