:root {
    --primary: #FF8C00;
    --bg: #f8fafc;
    --card: #ffffff;
    --text: #334155;
    --border: #e2e8f0;
    --input-focus: #fff7ed;
}

body.dark-theme {
    --bg: #0f172a;
    --card: #1e293b;
    --text: #f1f5f9;
    --border: #334155;
    --input-focus: #2d3748;
}

body {
    background-color: var(--bg); color: var(--text);
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0; display: flex; justify-content: center; align-items: center; 
    height: 100vh; direction: rtl; transition: 0.3s;
}

.login-card {
    background: var(--card); padding: 40px; border-radius: 24px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    width: 100%; max-width: 400px; text-align: center; border: 1px solid var(--border);
}

.logo-icon { font-size: 3.5rem; color: var(--primary); margin-bottom: 10px; }

/* تنسيق مربعات الإدخال الاحترافي */
.input-group {
    position: relative; margin-top: 20px; text-align: right;
}

.input-group i {
    position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
    color: var(--primary); font-size: 1.1rem; z-index: 1;
}

.input-group input {
    width: 100%; padding: 14px 48px 14px 16px;
    border-radius: 12px; border: 2px solid var(--border);
    background: var(--card); color: var(--text);
    font-size: 1rem; box-sizing: border-box; transition: all 0.2s;
    outline: none;
}

/* حركة عند الضغط على المربع */
.input-group input:focus {
    border-color: var(--primary);
    background: var(--input-focus);
    box-shadow: 0 0 0 4px rgba(255, 140, 0, 0.1);
}

.btn-login {
    background: var(--primary); color: white; border: none;
    padding: 16px; width: 100%; border-radius: 12px;
    font-weight: 700; font-size: 1.1rem; cursor: pointer;
    margin-top: 25px; transition: 0.3s;
}

.btn-login:hover { transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(255, 140, 0, 0.3); }

#theme-toggle {
    position: fixed; top: 20px; right: 20px;
    background: var(--card); color: var(--primary); border: 1px solid var(--border);
    padding: 12px; border-radius: 50%; cursor: pointer; box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}