/* استايلات خاصة بصفحة تسجيل الدخول */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* خلفية ثابتة وبسيطة */
.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(91, 155, 213, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(74, 144, 194, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    box-shadow: 
        0 8px 32px rgba(91, 155, 213, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(91, 155, 213, 0.15);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 2;
    backdrop-filter: blur(20px);
    animation: slideInUp 0.8s ease-out;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--blue-gradient-end), var(--blue-accent), var(--blue-soft));
    border-radius: 24px 24px 0 0;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--blue-accent) 0%, var(--blue-soft) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 30px rgba(91, 155, 213, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.login-logo i {
    font-size: 2rem;
    color: var(--white);
}

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--color-fg);
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.7;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.input-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 15px 50px 15px 15px;
    border: 3px solid rgba(91, 155, 213, 0.2);
    border-radius: 20px;
    font-size: 1rem;
    font-family: 'Cairo', Arial, sans-serif;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.98);
    color: var(--color-fg);
    box-shadow: 
        0 8px 30px rgba(91, 155, 213, 0.15),
        0 3px 10px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(15px);
}

.form-input:focus {
    outline: none;
    border-color: var(--blue-accent);
    box-shadow: 
        0 8px 30px rgba(91, 155, 213, 0.2),
        0 3px 8px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-fg);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    opacity: 0.6;
}

.form-input:focus + .input-icon {
    color: var(--blue-accent);
    transform: translateY(-50%) scale(1.1);
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--blue-gradient-end) 0%, var(--blue-accent) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Cairo', Arial, sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 
        0 8px 32px rgba(91, 155, 213, 0.25),
        0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.login-btn::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 0.6s ease;
}

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

.login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 12px 40px rgba(91, 155, 213, 0.35),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

.login-btn:active {
    transform: translateY(-1px);
}

.error-message {
    background: linear-gradient(135deg, var(--danger-color) 0%, #c82333 100%);
    color: var(--white);
    padding: 15px;
    border-radius: 16px;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
    box-shadow: 
        0 8px 32px rgba(220, 53, 69, 0.25),
        0 2px 8px rgba(0, 0, 0, 0.1);
    animation: shake 0.5s ease-in-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.success-message {
    background: linear-gradient(135deg, var(--success-color) 0%, #218838 100%);
    color: var(--white);
    padding: 15px;
    border-radius: 16px;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
    box-shadow: 
        0 8px 32px rgba(40, 167, 69, 0.25),
        0 2px 8px rgba(0, 0, 0, 0.1);
    animation: slideInDown 0.5s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(91, 155, 213, 0.15);
}

.footer-text {
    color: var(--color-fg);
    font-size: 0.9rem;
    opacity: 0.6;
}

/* الوضع المظلم */
.dark-mode .login-container {
    background: linear-gradient(135deg, #0f1419 0%, #1a2332 40%, #242b3d 100%);
}

.dark-mode .login-card {
    background: rgba(36, 43, 61, 0.95);
    border: 1px solid rgba(91, 155, 213, 0.15);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 2px 8px rgba(0, 0, 0, 0.2);
}

.dark-mode .login-title {
    color: var(--color-primary);
}

.dark-mode .login-subtitle {
    color: var(--color-fg);
}

.dark-mode .form-label {
    color: var(--color-fg);
}

.dark-mode .form-input {
    background: rgba(26, 35, 50, 0.98);
    color: var(--color-fg);
    border-color: rgba(91, 155, 213, 0.2);
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.3),
        0 3px 10px rgba(0, 0, 0, 0.2);
}

.dark-mode .form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.4),
        0 3px 8px rgba(0, 0, 0, 0.3);
    background: rgba(26, 35, 50, 1);
}

.dark-mode .input-icon {
    color: var(--color-fg);
}

.dark-mode .form-input:focus + .input-icon {
    color: var(--color-primary);
}

.dark-mode .login-footer {
    border-top-color: rgba(91, 155, 213, 0.15);
}

.dark-mode .footer-text {
    color: var(--color-fg);
}

/* استجابة للشاشات الصغيرة */
@media (max-width: 768px) {
    .login-container {
        padding: 15px;
    }

    .login-card {
        padding: 30px 25px;
        border-radius: 15px;
    }

    .login-logo {
        width: 60px;
        height: 60px;
    }

    .login-logo i {
        font-size: 1.5rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .form-input {
        padding: 12px 45px 12px 12px;
        font-size: 0.95rem;
    }

    .login-btn {
        padding: 12px;
        font-size: 1rem;
    }
}

/* تحسينات إضافية للتفاعل */
.form-input:valid {
    border-color: var(--success-color);
}

.form-input:invalid:not(:placeholder-shown) {
    border-color: var(--danger-color);
}

/* تأثيرات إضافية */
.login-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--blue-accent), var(--blue-soft), var(--blue-muted));
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.login-card:hover::before {
    opacity: 0.1;
}

/* تحسين إمكانية الوصول */
.form-input:focus {
    outline: 2px solid var(--blue-accent);
    outline-offset: 2px;
}

.login-btn:focus {
    outline: 2px solid var(--white);
    outline-offset: 2px;
}