/* =========================
   فونت
========================= */
@font-face {
    font-family: 'yekan';
    src: url('yekan.woff') format('woff');
}

/* =========================
   Zoom 90%
========================= */
body {
    zoom: 0.9;
}

@supports not (zoom: 1) {
    body {
        transform: scale(0.9);
        transform-origin: top center;
    }
}

/* =========================
   پایه
========================= */
html,
body {
    height: 100%;
    margin: 0;
    overflow-x: hidden;
}

body {
    font-family: 'yekan', Arial, sans-serif;
    background: url('back.webp') center / cover no-repeat;
    color: white;

    display: flex;
    flex-direction: column;
}

/* =========================
   هدر (کوچک‌تر)
========================= */
header {
    background-color: rgba(0, 0, 0, 0.7);
    text-align: center;
    padding: 10px;
}

header h1 {
    margin: 0;
    font-size: 1.4em;
}

/* =========================
   محتوا
========================= */
main {
    flex: 1;
}

/* =========================
   فرم ورود
========================= */
#login-section {
    background-color: rgba(255, 255, 255, 0.85);
    padding: 25px;
    margin: 30px auto;
    width: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.25);
}

h2 {
    margin-top: 0;
    text-align: center;
    color: #2c3e50;
}

/* =========================
   فرم
========================= */
form {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 5px;
    font-weight: bold;
    color: #34495e;
}

input[type="text"],
input[type="password"] {
    padding: 9px;
    margin-bottom: 12px;
    border-radius: 4px;
    border: 1px solid #ccc;
    font-family: 'yekan';
}

button {
    padding: 9px;
    font-size: 1.05em;
    border-radius: 4px;
    background-color: #3498db;
    color: white;
    border: none;
    cursor: pointer;
    font-family: 'yekan';
}

button:hover {
    background-color: #2980b9;
}

/* =========================
   خطا
========================= */
.error {
    background-color: rgba(255, 0, 0, 0.1);
    color: #c0392b;
    padding: 8px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 10px;
}

/* =========================
   فوتر (کوچک‌تر)
========================= */
footer {
    background-color: rgba(0, 0, 0, 0.7);
    text-align: center;
    padding: 6px;
    font-size: 0.9em;
}