/* Variables CSS pour صفحة تسجيل الدخول */
:root {
    --primary-blue: #0d47a1;
    --secondary-blue: #1976d2;
    --accent-yellow: #ffc107;
    --accent-yellow-dark: #ffb300;
    --white: #ffffff;
    --light-gray: #e0e0e0;
    --text-dark: #333333;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

/* إعدادات عامة */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--text-dark);
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* خلفية متحركة */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.bg-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    animation: float 15s infinite linear;
}

.bg-circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.bg-circle-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 10%;
    animation-delay: 5s;
}

.bg-circle-3 {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 20%;
    animation-delay: 10s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.7;
    }
    100% {
        transform: translateY(0) rotate(360deg);
        opacity: 1;
    }
}

/* الحاوية الرئيسية */
.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    position: relative;
}

.back-home {
    position: absolute;
    top: -60px;
    left: 0;
    color: var(--white);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    z-index: 10;
}

.back-home:hover {
    color: var(--accent-yellow);
    transform: translateX(-5px);
}

/* بطاقة تسجيل الدخول */
.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 40px 35px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* قسم الشعار */
.logo-section {
    margin-bottom: 30px;
}

.logo-container {
    position: relative;
    display: inline-block;
}

.logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(13, 71, 161, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.company-name {
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 5px;
    font-size: 1.5rem;
}

.company-tagline {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* نموذج تسجيل الدخول */
.login-form {
    margin-top: 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    font-weight: 500;
    margin-bottom: 8px;
    color: #555;
    display: block;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 12px 45px 12px 15px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(13, 71, 161, 0.25);
    background: var(--white);
}

.input-icon {
    position: absolute;
    right: 15px;
    color: #6c757d;
    font-size: 1rem;
}

.password-toggle {
    position: absolute;
    right: 40px;
    background: none;
    border: none;
    color: #6c757d;
    cursor: pointer;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: var(--primary-blue);
}

/* خيارات النموذج */
.form-options {
    font-size: 0.9rem;
}

.form-check-input:checked {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.forgot-password {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: var(--secondary-blue);
    text-decoration: underline;
}

/* زر تسجيل الدخول */
.btn-login {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border: none;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 71, 161, 0.4);
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.btn-login:hover .btn-icon {
    transform: translateX(3px);
}

.btn-spinner {
    display: flex;
    align-items: center;
}

/* الروابط الإضافية */
.additional-links {
    border-top: 1px solid #e9ecef;
    padding-top: 20px;
}

.additional-links p {
    color: #666;
    margin-bottom: 15px;
}

.btn-register {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    border-radius: 50px;
    padding: 10px 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-register:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* معلومات الأمان */
.security-info {
    padding-top: 15px;
    border-top: 1px solid #e9ecef;
}

/* التذييل */
.login-footer {
    color: var(--white);
}

.copyright {
    font-size: 0.85rem;
    opacity: 0.8;
    margin: 0;
}

/* التنبيهات */
.alert {
    border-radius: 10px;
    border: none;
    padding: 12px 15px;
    margin-bottom: 20px;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

/* تصميم متجاوب */
@media (max-width: 768px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 25px;
    }
    
    .back-home {
        position: relative;
        top: 0;
        margin-bottom: 20px;
        display: inline-block;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 25px 20px;
    }
    
    .logo {
        width: 70px;
        height: 70px;
    }
    
    .company-name {
        font-size: 1.3rem;
    }
    
    .form-options {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}