/* ================== متغيرات الألوان والحجم ================== */
:root {
  --clr-bg: #f4f7fc;
  --clr-card: #ffffff;
  --clr-primary: #009688;
  --clr-primary-dark: #00796b;
  --clr-text: #2c3e50;
  --clr-subtext: #555;
  --radius: 12px;
  --transition: 0.3s ease;
}

/* ================== الخطوط والأساسيات ================== */
body {
  font-family: 'Tajawal', sans-serif;
  background: var(--clr-bg);
  color: var(--clr-text);
  direction: rtl;
  text-align: center;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* ================== الرأس ================== */
header {
  margin-bottom: 2rem;
}
header img {
  max-width: 160px;
  margin-bottom: 0.5rem;
  transition: transform var(--transition);
}
header img:hover {
  transform: scale(1.05);
}
header h1 {
  font-size: 2.2rem;
  color: var(--clr-text);
  margin: 0.5rem 0;
}
.subtitle {
  font-size: 1rem;
  color: var(--clr-subtext);
  margin-bottom: 2rem;
}

/* ================== النموذج ================== */
form {
  background: var(--clr-card);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
  margin-bottom: 2rem;
  transition: box-shadow var(--transition);
}
form:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}
form label {
  display: block;
  margin: 1rem 0 0.5rem;
  font-weight: bold;
  text-align: right;
}
input[type="date"],
input[type="text"],
select {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: var(--radius);
  font-size: 1rem;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus,
select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(0,150,136,0.2);
}

/* ================== الأزرار ================== */
button {
  background-color: var(--clr-primary);
  color: #fff;
  border: none;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1.1rem;
  margin-top: 1rem;
  transition: background-color var(--transition), transform var(--transition);
}
button:hover {
  background-color: var(--clr-primary-dark);
  transform: translateY(-2px);
}
button:active {
  transform: translateY(0);
}

/* ================== قسم النتيجة ================== */
#resultSection {
  background: var(--clr-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0,0,0,0.05);
}
#resultList {
  list-style: none;
  padding: 0;
  text-align: right;
}
#resultList li {
  padding: 0.5rem 0;
  font-size: 1.05rem;
  border-bottom: 1px solid #eee;
}
#resultList li:last-child {
  border-bottom: none;
}

/* ================== الرسائل ================== */
.message {
  background-color: #ffefef;
  color: #c0392b;
  padding: 0.8rem;
  margin-top: 1rem;
  border-radius: var(--radius);
  border: 1px solid #e0b4b4;
  font-weight: bold;
  display: inline-block;
  transition: transform var(--transition);
}
.message:hover {
  transform: scale(1.02);
}
.message::before {
  content: "⚠️ ";
  margin-left: 0.5rem;
}

/* ================== التذييل ================== */
footer {
  margin-top: 2rem;
  font-size: 0.95rem;
  color: var(--clr-subtext);
}
footer a {
  color: var(--clr-primary);
  text-decoration: none;
  font-weight: bold;
  transition: color var(--transition);
}
footer a:hover {
  color: var(--clr-primary-dark);
}

/* ================== استجابة الموبايل ================== */
@media (max-width: 480px) {
  header h1 { font-size: 1.8rem; }
  .subtitle { font-size: 0.95rem; }
  form { padding: 1rem; }
  button { width: 100%; }
}